2022-11-12 21:57:33 +00:00
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From 4395d280ebe5b72648640ef63588fdadbcf3404b Mon Sep 17 00:00:00 2001
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2022-10-14 15:27:29 +00:00
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Sun, 10 Oct 2021 20:56:57 +0200
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Subject: [PATCH] ACPI: delay enumeration of devices with a _DEP pointing to an
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INT3472 device
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The clk and regulator frameworks expect clk/regulator consumer-devices
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to have info about the consumed clks/regulators described in the device's
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fw_node.
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To work around cases where this info is not present in the firmware tables,
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which is often the case on x86/ACPI devices, both frameworks allow the
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provider-driver to attach info about consumers to the clks/regulators
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when registering these.
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This causes problems with the probe ordering wrt drivers for consumers
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of these clks/regulators. Since the lookups are only registered when the
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provider-driver binds, trying to get these clks/regulators before then
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results in a -ENOENT error for clks and a dummy regulator for regulators.
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One case where we hit this issue is camera sensors such as e.g. the OV8865
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sensor found on the Microsoft Surface Go. The sensor uses clks, regulators
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and GPIOs provided by a TPS68470 PMIC which is described in an INT3472
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ACPI device. There is special platform code handling this and setting
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platform_data with the necessary consumer info on the MFD cells
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instantiated for the PMIC under: drivers/platform/x86/intel/int3472.
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For this to work properly the ov8865 driver must not bind to the I2C-client
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for the OV8865 sensor until after the TPS68470 PMIC gpio, regulator and
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clk MFD cells have all been fully setup.
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The OV8865 on the Microsoft Surface Go is just one example, all X86
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devices using the Intel IPU3 camera block found on recent Intel SoCs
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have similar issues where there is an INT3472 HID ACPI-device, which
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describes the clks and regulators, and the driver for this INT3472 device
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must be fully initialized before the sensor driver (any sensor driver)
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binds for things to work properly.
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On these devices the ACPI nodes describing the sensors all have a _DEP
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dependency on the matching INT3472 ACPI device (there is one per sensor).
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This allows solving the probe-ordering problem by delaying the enumeration
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(instantiation of the I2C-client in the ov8865 example) of ACPI-devices
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which have a _DEP dependency on an INT3472 device.
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The new acpi_dev_ready_for_enumeration() helper used for this is also
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exported because for devices, which have the enumeration_by_parent flag
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set, the parent-driver will do its own scan of child ACPI devices and
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it will try to enumerate those during its probe(). Code doing this such
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as e.g. the i2c-core-acpi.c code must call this new helper to ensure
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that it too delays the enumeration until all the _DEP dependencies are
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met on devices which have the new honor_deps flag set.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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Patchset: cameras
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---
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drivers/acpi/scan.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
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index 42cec8120f18..72d0e599120f 100644
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--- a/drivers/acpi/scan.c
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+++ b/drivers/acpi/scan.c
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@@ -2108,6 +2108,9 @@ static acpi_status acpi_bus_check_add_2(acpi_handle handle, u32 lvl_not_used,
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static void acpi_default_enumeration(struct acpi_device *device)
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{
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+ if (!acpi_dev_ready_for_enumeration(device))
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+ return;
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+
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/*
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* Do not enumerate devices with enumeration_by_parent flag set as
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* they will be enumerated by their respective parents.
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--
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2022-11-03 13:39:25 +00:00
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2.38.1
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2022-10-14 15:27:29 +00:00
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2022-11-12 21:57:33 +00:00
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From 14a5925250e1eaf440925c88c6a055f2cf0490f1 Mon Sep 17 00:00:00 2001
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2022-10-14 15:27:29 +00:00
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From: zouxiaoh <xiaohong.zou@intel.com>
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Date: Fri, 25 Jun 2021 08:52:59 +0800
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Subject: [PATCH] iommu: intel-ipu: use IOMMU passthrough mode for Intel IPUs
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Intel IPU(Image Processing Unit) has its own (IO)MMU hardware,
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The IPU driver allocates its own page table that is not mapped
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via the DMA, and thus the Intel IOMMU driver blocks access giving
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this error: DMAR: DRHD: handling fault status reg 3 DMAR:
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[DMA Read] Request device [00:05.0] PASID ffffffff
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fault addr 76406000 [fault reason 06] PTE Read access is not set
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As IPU is not an external facing device which is not risky, so use
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IOMMU passthrough mode for Intel IPUs.
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Change-Id: I6dcccdadac308cf42e20a18e1b593381391e3e6b
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Depends-On: Iacd67578e8c6a9b9ac73285f52b4081b72fb68a6
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Tracked-On: #JIITL8-411
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Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
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Signed-off-by: zouxiaoh <xiaohong.zou@intel.com>
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Signed-off-by: Xu Chongyang <chongyang.xu@intel.com>
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Patchset: cameras
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---
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drivers/iommu/intel/iommu.c | 30 ++++++++++++++++++++++++++++++
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1 file changed, 30 insertions(+)
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diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
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2022-11-03 13:39:25 +00:00
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index 4c895b5f7e2d..f68f031dee46 100644
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2022-10-14 15:27:29 +00:00
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--- a/drivers/iommu/intel/iommu.c
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+++ b/drivers/iommu/intel/iommu.c
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@@ -37,6 +37,12 @@
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#define IS_GFX_DEVICE(pdev) ((pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY)
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#define IS_USB_DEVICE(pdev) ((pdev->class >> 8) == PCI_CLASS_SERIAL_USB)
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#define IS_ISA_DEVICE(pdev) ((pdev->class >> 8) == PCI_CLASS_BRIDGE_ISA)
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+#define IS_INTEL_IPU(pdev) ((pdev)->vendor == PCI_VENDOR_ID_INTEL && \
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+ ((pdev)->device == 0x9a19 || \
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+ (pdev)->device == 0x9a39 || \
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+ (pdev)->device == 0x4e19 || \
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+ (pdev)->device == 0x465d || \
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+ (pdev)->device == 0x1919))
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#define IS_IPTS(pdev) ((pdev)->vendor == PCI_VENDOR_ID_INTEL && \
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((pdev)->device == 0x9d3e))
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#define IS_AZALIA(pdev) ((pdev)->vendor == 0x8086 && (pdev)->device == 0x3a3e)
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@@ -284,12 +290,14 @@ EXPORT_SYMBOL_GPL(intel_iommu_enabled);
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static int dmar_map_gfx = 1;
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static int dmar_map_ipts = 1;
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+static int dmar_map_ipu = 1;
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static int intel_iommu_superpage = 1;
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static int iommu_identity_mapping;
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static int iommu_skip_te_disable;
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#define IDENTMAP_GFX 2
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#define IDENTMAP_AZALIA 4
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+#define IDENTMAP_IPU 8
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#define IDENTMAP_IPTS 16
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const struct iommu_ops intel_iommu_ops;
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2022-11-03 13:39:25 +00:00
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@@ -2608,6 +2616,9 @@ static int device_def_domain_type(struct device *dev)
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2022-10-14 15:27:29 +00:00
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if ((iommu_identity_mapping & IDENTMAP_GFX) && IS_GFX_DEVICE(pdev))
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return IOMMU_DOMAIN_IDENTITY;
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+ if ((iommu_identity_mapping & IDENTMAP_IPU) && IS_INTEL_IPU(pdev))
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+ return IOMMU_DOMAIN_IDENTITY;
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+
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if ((iommu_identity_mapping & IDENTMAP_IPTS) && IS_IPTS(pdev))
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return IOMMU_DOMAIN_IDENTITY;
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}
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2022-11-03 13:39:25 +00:00
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@@ -2999,6 +3010,9 @@ static int __init init_dmars(void)
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2022-10-14 15:27:29 +00:00
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if (!dmar_map_gfx)
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iommu_identity_mapping |= IDENTMAP_GFX;
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+ if (!dmar_map_ipu)
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+ iommu_identity_mapping |= IDENTMAP_IPU;
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+
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if (!dmar_map_ipts)
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iommu_identity_mapping |= IDENTMAP_IPTS;
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2022-11-03 13:39:25 +00:00
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@@ -4803,6 +4817,18 @@ static void quirk_iommu_igfx(struct pci_dev *dev)
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2022-10-14 15:27:29 +00:00
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dmar_map_gfx = 0;
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}
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+static void quirk_iommu_ipu(struct pci_dev *dev)
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+{
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+ if (!IS_INTEL_IPU(dev))
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+ return;
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+
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+ if (risky_device(dev))
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+ return;
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+
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+ pci_info(dev, "Passthrough IOMMU for integrated Intel IPU\n");
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+ dmar_map_ipu = 0;
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+}
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+
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static void quirk_iommu_ipts(struct pci_dev *dev)
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{
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if (!IS_IPTS(dev))
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2022-11-03 13:39:25 +00:00
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@@ -4814,6 +4840,7 @@ static void quirk_iommu_ipts(struct pci_dev *dev)
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2022-10-14 15:27:29 +00:00
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pci_info(dev, "Passthrough IOMMU for IPTS\n");
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dmar_map_ipts = 0;
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}
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+
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/* G4x/GM45 integrated gfx dmar support is totally busted. */
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_igfx);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e00, quirk_iommu_igfx);
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2022-11-03 13:39:25 +00:00
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@@ -4849,6 +4876,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1632, quirk_iommu_igfx);
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2022-10-14 15:27:29 +00:00
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x163A, quirk_iommu_igfx);
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x163D, quirk_iommu_igfx);
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+/* disable IPU dmar support */
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+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_iommu_ipu);
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+
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/* disable IPTS dmar support */
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DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9D3E, quirk_iommu_ipts);
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--
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2022-11-03 13:39:25 +00:00
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2.38.1
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2022-10-14 15:27:29 +00:00
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2022-11-12 21:57:33 +00:00
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From 6fe580b0bb6383a45e0b319007a06aae9ac2ce90 Mon Sep 17 00:00:00 2001
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2022-10-14 15:27:29 +00:00
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From: Daniel Scally <djrscally@gmail.com>
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Date: Sun, 10 Oct 2021 20:57:02 +0200
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Subject: [PATCH] platform/x86: int3472: Enable I2c daisy chain
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The TPS68470 PMIC has an I2C passthrough mode through which I2C traffic
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can be forwarded to a device connected to the PMIC as though it were
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connected directly to the system bus. Enable this mode when the chip
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is initialised.
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Signed-off-by: Daniel Scally <djrscally@gmail.com>
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Patchset: cameras
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---
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drivers/platform/x86/intel/int3472/tps68470.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/drivers/platform/x86/intel/int3472/tps68470.c b/drivers/platform/x86/intel/int3472/tps68470.c
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index 22f61b47f9e5..e1de1ff40bba 100644
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--- a/drivers/platform/x86/intel/int3472/tps68470.c
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+++ b/drivers/platform/x86/intel/int3472/tps68470.c
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@@ -45,6 +45,13 @@ static int tps68470_chip_init(struct device *dev, struct regmap *regmap)
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return ret;
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}
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+ /* Enable I2C daisy chain */
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+ ret = regmap_write(regmap, TPS68470_REG_S_I2C_CTL, 0x03);
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+ if (ret) {
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+ dev_err(dev, "Failed to enable i2c daisy chain\n");
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+ return ret;
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+ }
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+
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dev_info(dev, "TPS68470 REVID: 0x%02x\n", version);
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return 0;
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--
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2022-11-03 13:39:25 +00:00
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2.38.1
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2022-10-14 15:27:29 +00:00
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2022-11-12 21:57:33 +00:00
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From afb496b7714c8e94697c4b5fdecae6573883c6f8 Mon Sep 17 00:00:00 2001
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2022-10-14 15:27:29 +00:00
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From: Daniel Scally <djrscally@gmail.com>
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Date: Thu, 28 Oct 2021 21:55:16 +0100
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Subject: [PATCH] media: i2c: Add driver for DW9719 VCM
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Add a driver for the DW9719 VCM. The driver creates a v4l2 subdevice
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and registers a control to set the desired focus.
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Signed-off-by: Daniel Scally <djrscally@gmail.com>
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Patchset: cameras
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---
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MAINTAINERS | 7 +
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drivers/media/i2c/Kconfig | 11 +
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drivers/media/i2c/Makefile | 1 +
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drivers/media/i2c/dw9719.c | 427 +++++++++++++++++++++++++++++++++++++
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4 files changed, 446 insertions(+)
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create mode 100644 drivers/media/i2c/dw9719.c
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diff --git a/MAINTAINERS b/MAINTAINERS
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index 72b9654f764c..cecb621a6581 100644
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--- a/MAINTAINERS
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+++ b/MAINTAINERS
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@@ -6250,6 +6250,13 @@ T: git git://linuxtv.org/media_tree.git
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F: Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt
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F: drivers/media/i2c/dw9714.c
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+DONGWOON DW9719 LENS VOICE COIL DRIVER
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+M: Daniel Scally <djrscally@gmail.com>
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+L: linux-media@vger.kernel.org
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+S: Maintained
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+T: git git://linuxtv.org/media_tree.git
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+F: drivers/media/i2c/dw9719.c
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+
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DONGWOON DW9768 LENS VOICE COIL DRIVER
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M: Dongchun Zhu <dongchun.zhu@mediatek.com>
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L: linux-media@vger.kernel.org
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diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
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index 7806d4b81716..98d081efeef7 100644
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--- a/drivers/media/i2c/Kconfig
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+++ b/drivers/media/i2c/Kconfig
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@@ -821,6 +821,17 @@ config VIDEO_DW9714
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capability. This is designed for linear control of
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voice coil motors, controlled via I2C serial interface.
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+config VIDEO_DW9719
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+ tristate "DW9719 lens voice coil support"
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+ depends on I2C && VIDEO_V4L2
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+ select MEDIA_CONTROLLER
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+ select VIDEO_V4L2_SUBDEV_API
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+ select V4L2_ASYNC
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+ help
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+ This is a driver for the DW9719 camera lens voice coil.
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+ This is designed for linear control of voice coil motors,
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+ controlled via I2C serial interface.
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+
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config VIDEO_DW9768
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tristate "DW9768 lens voice coil support"
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depends on I2C && VIDEO_DEV
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diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
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index 0a2933103dd9..b82a07c76388 100644
|
|
|
|
--- a/drivers/media/i2c/Makefile
|
|
|
|
+++ b/drivers/media/i2c/Makefile
|
|
|
|
@@ -30,6 +30,7 @@ obj-$(CONFIG_VIDEO_CS5345) += cs5345.o
|
|
|
|
obj-$(CONFIG_VIDEO_CS53L32A) += cs53l32a.o
|
|
|
|
obj-$(CONFIG_VIDEO_CX25840) += cx25840/
|
|
|
|
obj-$(CONFIG_VIDEO_DW9714) += dw9714.o
|
|
|
|
+obj-$(CONFIG_VIDEO_DW9719) += dw9719.o
|
|
|
|
obj-$(CONFIG_VIDEO_DW9768) += dw9768.o
|
|
|
|
obj-$(CONFIG_VIDEO_DW9807_VCM) += dw9807-vcm.o
|
|
|
|
obj-$(CONFIG_VIDEO_ET8EK8) += et8ek8/
|
|
|
|
diff --git a/drivers/media/i2c/dw9719.c b/drivers/media/i2c/dw9719.c
|
|
|
|
new file mode 100644
|
|
|
|
index 000000000000..8451c75b696b
|
|
|
|
--- /dev/null
|
|
|
|
+++ b/drivers/media/i2c/dw9719.c
|
|
|
|
@@ -0,0 +1,427 @@
|
|
|
|
+// SPDX-License-Identifier: GPL-2.0
|
|
|
|
+// Copyright (c) 2012 Intel Corporation
|
|
|
|
+
|
|
|
|
+/*
|
|
|
|
+ * Based on linux/modules/camera/drivers/media/i2c/imx/dw9719.c in this repo:
|
|
|
|
+ * https://github.com/ZenfoneArea/android_kernel_asus_zenfone5
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+#include <asm/unaligned.h>
|
|
|
|
+
|
|
|
|
+#include <linux/delay.h>
|
|
|
|
+#include <linux/i2c.h>
|
|
|
|
+#include <linux/pm_runtime.h>
|
|
|
|
+#include <linux/regulator/consumer.h>
|
|
|
|
+#include <linux/types.h>
|
|
|
|
+
|
|
|
|
+#include <media/v4l2-common.h>
|
|
|
|
+#include <media/v4l2-ctrls.h>
|
|
|
|
+#include <media/v4l2-subdev.h>
|
|
|
|
+
|
|
|
|
+#define DW9719_MAX_FOCUS_POS 1023
|
|
|
|
+#define DW9719_CTRL_STEPS 16
|
|
|
|
+#define DW9719_CTRL_DELAY_US 1000
|
|
|
|
+#define DELAY_MAX_PER_STEP_NS (1000000 * 1023)
|
|
|
|
+
|
|
|
|
+#define DW9719_INFO 0
|
|
|
|
+#define DW9719_ID 0xF1
|
|
|
|
+#define DW9719_CONTROL 2
|
|
|
|
+#define DW9719_VCM_CURRENT 3
|
|
|
|
+
|
|
|
|
+#define DW9719_MODE 6
|
|
|
|
+#define DW9719_VCM_FREQ 7
|
|
|
|
+
|
|
|
|
+#define DW9719_MODE_SAC3 0x40
|
|
|
|
+#define DW9719_DEFAULT_VCM_FREQ 0x60
|
|
|
|
+#define DW9719_ENABLE_RINGING 0x02
|
|
|
|
+
|
|
|
|
+#define NUM_REGULATORS 2
|
|
|
|
+
|
|
|
|
+#define to_dw9719_device(x) container_of(x, struct dw9719_device, sd)
|
|
|
|
+
|
|
|
|
+struct dw9719_device {
|
|
|
|
+ struct device *dev;
|
|
|
|
+ struct i2c_client *client;
|
|
|
|
+ struct regulator_bulk_data regulators[NUM_REGULATORS];
|
|
|
|
+ struct v4l2_subdev sd;
|
|
|
|
+
|
|
|
|
+ struct dw9719_v4l2_ctrls {
|
|
|
|
+ struct v4l2_ctrl_handler handler;
|
|
|
|
+ struct v4l2_ctrl *focus;
|
|
|
|
+ } ctrls;
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+static int dw9719_i2c_rd8(struct i2c_client *client, u8 reg, u8 *val)
|
|
|
|
+{
|
|
|
|
+ struct i2c_msg msg[2];
|
|
|
|
+ u8 buf[2] = { reg };
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ msg[0].addr = client->addr;
|
|
|
|
+ msg[0].flags = 0;
|
|
|
|
+ msg[0].len = 1;
|
|
|
|
+ msg[0].buf = buf;
|
|
|
|
+
|
|
|
|
+ msg[1].addr = client->addr;
|
|
|
|
+ msg[1].flags = I2C_M_RD;
|
|
|
|
+ msg[1].len = 1;
|
|
|
|
+ msg[1].buf = &buf[1];
|
|
|
|
+ *val = 0;
|
|
|
|
+
|
|
|
|
+ ret = i2c_transfer(client->adapter, msg, 2);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ *val = buf[1];
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_i2c_wr8(struct i2c_client *client, u8 reg, u8 val)
|
|
|
|
+{
|
|
|
|
+ struct i2c_msg msg;
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ u8 buf[2] = { reg, val };
|
|
|
|
+
|
|
|
|
+ msg.addr = client->addr;
|
|
|
|
+ msg.flags = 0;
|
|
|
|
+ msg.len = sizeof(buf);
|
|
|
|
+ msg.buf = buf;
|
|
|
|
+
|
|
|
|
+ ret = i2c_transfer(client->adapter, &msg, 1);
|
|
|
|
+
|
|
|
|
+ return ret < 0 ? ret : 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_i2c_wr16(struct i2c_client *client, u8 reg, u16 val)
|
|
|
|
+{
|
|
|
|
+ struct i2c_msg msg;
|
|
|
|
+ u8 buf[3] = { reg };
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ put_unaligned_be16(val, buf + 1);
|
|
|
|
+
|
|
|
|
+ msg.addr = client->addr;
|
|
|
|
+ msg.flags = 0;
|
|
|
|
+ msg.len = sizeof(buf);
|
|
|
|
+ msg.buf = buf;
|
|
|
|
+
|
|
|
|
+ ret = i2c_transfer(client->adapter, &msg, 1);
|
|
|
|
+
|
|
|
|
+ return ret < 0 ? ret : 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_detect(struct dw9719_device *dw9719)
|
|
|
|
+{
|
|
|
|
+ int ret;
|
|
|
|
+ u8 val;
|
|
|
|
+
|
|
|
|
+ ret = dw9719_i2c_rd8(dw9719->client, DW9719_INFO, &val);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ if (val != DW9719_ID) {
|
|
|
|
+ dev_err(dw9719->dev, "Failed to detect correct id\n");
|
|
|
|
+ ret = -ENXIO;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_power_down(struct dw9719_device *dw9719)
|
|
|
|
+{
|
|
|
|
+ return regulator_bulk_disable(NUM_REGULATORS, dw9719->regulators);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_power_up(struct dw9719_device *dw9719)
|
|
|
|
+{
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ ret = regulator_bulk_enable(NUM_REGULATORS, dw9719->regulators);
|
|
|
|
+ if (ret)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ /* Jiggle SCL pin to wake up device */
|
|
|
|
+ ret = dw9719_i2c_wr8(dw9719->client, DW9719_CONTROL, 1);
|
|
|
|
+
|
|
|
|
+ /* Need 100us to transit from SHUTDOWN to STANDBY*/
|
|
|
|
+ usleep_range(100, 1000);
|
|
|
|
+
|
|
|
|
+ ret = dw9719_i2c_wr8(dw9719->client, DW9719_CONTROL,
|
|
|
|
+ DW9719_ENABLE_RINGING);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ goto fail_powerdown;
|
|
|
|
+
|
|
|
|
+ ret = dw9719_i2c_wr8(dw9719->client, DW9719_MODE, DW9719_MODE_SAC3);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ goto fail_powerdown;
|
|
|
|
+
|
|
|
|
+ ret = dw9719_i2c_wr8(dw9719->client, DW9719_VCM_FREQ,
|
|
|
|
+ DW9719_DEFAULT_VCM_FREQ);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ goto fail_powerdown;
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+fail_powerdown:
|
|
|
|
+ dw9719_power_down(dw9719);
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_t_focus_abs(struct dw9719_device *dw9719, s32 value)
|
|
|
|
+{
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ value = clamp(value, 0, DW9719_MAX_FOCUS_POS);
|
|
|
|
+ ret = dw9719_i2c_wr16(dw9719->client, DW9719_VCM_CURRENT, value);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_set_ctrl(struct v4l2_ctrl *ctrl)
|
|
|
|
+{
|
|
|
|
+ struct dw9719_device *dw9719 = container_of(ctrl->handler,
|
|
|
|
+ struct dw9719_device,
|
|
|
|
+ ctrls.handler);
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ /* Only apply changes to the controls if the device is powered up */
|
|
|
|
+ if (!pm_runtime_get_if_in_use(dw9719->dev))
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+ switch (ctrl->id) {
|
|
|
|
+ case V4L2_CID_FOCUS_ABSOLUTE:
|
|
|
|
+ ret = dw9719_t_focus_abs(dw9719, ctrl->val);
|
|
|
|
+ break;
|
|
|
|
+ default:
|
|
|
|
+ ret = -EINVAL;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ pm_runtime_put(dw9719->dev);
|
|
|
|
+
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static const struct v4l2_ctrl_ops dw9719_ctrl_ops = {
|
|
|
|
+ .s_ctrl = dw9719_set_ctrl,
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+static int __maybe_unused dw9719_suspend(struct device *dev)
|
|
|
|
+{
|
|
|
|
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
|
|
|
|
+ struct dw9719_device *dw9719 = to_dw9719_device(sd);
|
|
|
|
+ int ret;
|
|
|
|
+ int val;
|
|
|
|
+
|
|
|
|
+ for (val = dw9719->ctrls.focus->val; val >= 0;
|
|
|
|
+ val -= DW9719_CTRL_STEPS) {
|
|
|
|
+ ret = dw9719_t_focus_abs(dw9719, val);
|
|
|
|
+ if (ret)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ usleep_range(DW9719_CTRL_DELAY_US, DW9719_CTRL_DELAY_US + 10);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return dw9719_power_down(dw9719);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int __maybe_unused dw9719_resume(struct device *dev)
|
|
|
|
+{
|
|
|
|
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
|
|
|
|
+ struct dw9719_device *dw9719 = to_dw9719_device(sd);
|
|
|
|
+ int current_focus = dw9719->ctrls.focus->val;
|
|
|
|
+ int ret;
|
|
|
|
+ int val;
|
|
|
|
+
|
|
|
|
+ ret = dw9719_power_up(dw9719);
|
|
|
|
+ if (ret)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ for (val = current_focus % DW9719_CTRL_STEPS; val < current_focus;
|
|
|
|
+ val += DW9719_CTRL_STEPS) {
|
|
|
|
+ ret = dw9719_t_focus_abs(dw9719, val);
|
|
|
|
+ if (ret)
|
|
|
|
+ goto err_power_down;
|
|
|
|
+
|
|
|
|
+ usleep_range(DW9719_CTRL_DELAY_US, DW9719_CTRL_DELAY_US + 10);
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+
|
|
|
|
+err_power_down:
|
|
|
|
+ dw9719_power_down(dw9719);
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
|
|
|
|
+{
|
|
|
|
+ return pm_runtime_resume_and_get(sd->dev);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_close(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
|
|
|
|
+{
|
|
|
|
+ pm_runtime_put(sd->dev);
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static const struct v4l2_subdev_internal_ops dw9719_internal_ops = {
|
|
|
|
+ .open = dw9719_open,
|
|
|
|
+ .close = dw9719_close,
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+static int dw9719_init_controls(struct dw9719_device *dw9719)
|
|
|
|
+{
|
|
|
|
+ const struct v4l2_ctrl_ops *ops = &dw9719_ctrl_ops;
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ ret = v4l2_ctrl_handler_init(&dw9719->ctrls.handler, 1);
|
|
|
|
+ if (ret)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ dw9719->ctrls.focus = v4l2_ctrl_new_std(&dw9719->ctrls.handler, ops,
|
|
|
|
+ V4L2_CID_FOCUS_ABSOLUTE, 0,
|
|
|
|
+ DW9719_MAX_FOCUS_POS, 1, 0);
|
|
|
|
+
|
|
|
|
+ if (dw9719->ctrls.handler.error) {
|
|
|
|
+ dev_err(dw9719->dev, "Error initialising v4l2 ctrls\n");
|
|
|
|
+ ret = dw9719->ctrls.handler.error;
|
|
|
|
+ goto err_free_handler;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ dw9719->sd.ctrl_handler = &dw9719->ctrls.handler;
|
|
|
|
+
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+err_free_handler:
|
|
|
|
+ v4l2_ctrl_handler_free(&dw9719->ctrls.handler);
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static const struct v4l2_subdev_ops dw9719_ops = { };
|
|
|
|
+
|
|
|
|
+static int dw9719_probe(struct i2c_client *client)
|
|
|
|
+{
|
|
|
|
+ struct dw9719_device *dw9719;
|
|
|
|
+ int ret;
|
|
|
|
+
|
|
|
|
+ dw9719 = devm_kzalloc(&client->dev, sizeof(*dw9719), GFP_KERNEL);
|
|
|
|
+ if (!dw9719)
|
|
|
|
+ return -ENOMEM;
|
|
|
|
+
|
|
|
|
+ dw9719->client = client;
|
|
|
|
+ dw9719->dev = &client->dev;
|
|
|
|
+
|
|
|
|
+ dw9719->regulators[0].supply = "vdd";
|
|
|
|
+ /*
|
|
|
|
+ * The DW9719 has only the 1 VDD voltage input, but some PMICs such as
|
|
|
|
+ * the TPS68470 PMIC have I2C passthrough capability, to disconnect the
|
|
|
|
+ * sensor's I2C pins from the I2C bus when the sensors VSIO (Sensor-IO)
|
|
|
|
+ * is off, because some sensors then short these pins to ground;
|
|
|
|
+ * and the DW9719 might sit behind this passthrough, this it needs to
|
|
|
|
+ * enable VSIO as that will also enable the I2C passthrough.
|
|
|
|
+ */
|
|
|
|
+ dw9719->regulators[1].supply = "vsio";
|
|
|
|
+
|
|
|
|
+ ret = devm_regulator_bulk_get(&client->dev, NUM_REGULATORS,
|
|
|
|
+ dw9719->regulators);
|
|
|
|
+ if (ret)
|
|
|
|
+ return dev_err_probe(&client->dev, ret, "getting regulators\n");
|
|
|
|
+
|
|
|
|
+ v4l2_i2c_subdev_init(&dw9719->sd, client, &dw9719_ops);
|
|
|
|
+ dw9719->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
|
|
|
|
+ dw9719->sd.internal_ops = &dw9719_internal_ops;
|
|
|
|
+
|
|
|
|
+ ret = dw9719_init_controls(dw9719);
|
|
|
|
+ if (ret)
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+ ret = media_entity_pads_init(&dw9719->sd.entity, 0, NULL);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ goto err_free_ctrl_handler;
|
|
|
|
+
|
|
|
|
+ dw9719->sd.entity.function = MEDIA_ENT_F_LENS;
|
|
|
|
+
|
|
|
|
+ /*
|
|
|
|
+ * We need the driver to work in the event that pm runtime is disable in
|
|
|
|
+ * the kernel, so power up and verify the chip now. In the event that
|
|
|
|
+ * runtime pm is disabled this will leave the chip on, so that the lens
|
|
|
|
+ * will work.
|
|
|
|
+ */
|
|
|
|
+
|
|
|
|
+ ret = dw9719_power_up(dw9719);
|
|
|
|
+ if (ret)
|
|
|
|
+ goto err_cleanup_media;
|
|
|
|
+
|
|
|
|
+ ret = dw9719_detect(dw9719);
|
|
|
|
+ if (ret)
|
|
|
|
+ goto err_powerdown;
|
|
|
|
+
|
|
|
|
+ pm_runtime_set_active(&client->dev);
|
|
|
|
+ pm_runtime_get_noresume(&client->dev);
|
|
|
|
+ pm_runtime_enable(&client->dev);
|
|
|
|
+
|
|
|
|
+ ret = v4l2_async_register_subdev(&dw9719->sd);
|
|
|
|
+ if (ret < 0)
|
|
|
|
+ goto err_pm_runtime;
|
|
|
|
+
|
|
|
|
+ pm_runtime_set_autosuspend_delay(&client->dev, 1000);
|
|
|
|
+ pm_runtime_use_autosuspend(&client->dev);
|
|
|
|
+ pm_runtime_put_autosuspend(&client->dev);
|
|
|
|
+
|
|
|
|
+ return ret;
|
|
|
|
+
|
|
|
|
+err_pm_runtime:
|
|
|
|
+ pm_runtime_disable(&client->dev);
|
|
|
|
+ pm_runtime_put_noidle(&client->dev);
|
|
|
|
+err_powerdown:
|
|
|
|
+ dw9719_power_down(dw9719);
|
|
|
|
+err_cleanup_media:
|
|
|
|
+ media_entity_cleanup(&dw9719->sd.entity);
|
|
|
|
+err_free_ctrl_handler:
|
|
|
|
+ v4l2_ctrl_handler_free(&dw9719->ctrls.handler);
|
|
|
|
+
|
|
|
|
+ return ret;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static int dw9719_remove(struct i2c_client *client)
|
|
|
|
+{
|
|
|
|
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
|
|
|
|
+ struct dw9719_device *dw9719 = container_of(sd, struct dw9719_device,
|
|
|
|
+ sd);
|
|
|
|
+
|
|
|
|
+ pm_runtime_disable(&client->dev);
|
|
|
|
+ v4l2_async_unregister_subdev(sd);
|
|
|
|
+ v4l2_ctrl_handler_free(&dw9719->ctrls.handler);
|
|
|
|
+ media_entity_cleanup(&dw9719->sd.entity);
|
|
|
|
+
|
|
|
|
+ return 0;
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
+static const struct i2c_device_id dw9719_id_table[] = {
|
|
|
|
+ { "dw9719" },
|
|
|
|
+ { }
|
|
|
|
+};
|
|
|
|
+MODULE_DEVICE_TABLE(i2c, dw9719_id_table);
|
|
|
|
+
|
|
|
|
+static const struct dev_pm_ops dw9719_pm_ops = {
|
|
|
|
+ SET_RUNTIME_PM_OPS(dw9719_suspend, dw9719_resume, NULL)
|
|
|
|
+};
|
|
|
|
+
|
|
|
|
+static struct i2c_driver dw9719_i2c_driver = {
|
|
|
|
+ .driver = {
|
|
|
|
+ .name = "dw9719",
|
|
|
|
+ .pm = &dw9719_pm_ops,
|
|
|
|
+ },
|
|
|
|
+ .probe_new = dw9719_probe,
|
|
|
|
+ .remove = dw9719_remove,
|
|
|
|
+ .id_table = dw9719_id_table,
|
|
|
|
+};
|
|
|
|
+module_i2c_driver(dw9719_i2c_driver);
|
|
|
|
+
|
|
|
|
+MODULE_AUTHOR("Daniel Scally <djrscally@gmail.com>");
|
|
|
|
+MODULE_DESCRIPTION("DW9719 VCM Driver");
|
|
|
|
+MODULE_LICENSE("GPL");
|
|
|
|
--
|
2022-11-03 13:39:25 +00:00
|
|
|
2.38.1
|
2022-10-14 15:27:29 +00:00
|
|
|
|
2022-11-12 21:57:33 +00:00
|
|
|
From 83877415f586ae1d54c3958e1c6307ee9984b5cf Mon Sep 17 00:00:00 2001
|
2022-10-14 15:27:29 +00:00
|
|
|
From: Daniel Scally <djrscally@gmail.com>
|
|
|
|
Date: Wed, 4 May 2022 23:21:45 +0100
|
|
|
|
Subject: [PATCH] media: ipu3-cio2: Move functionality from .complete() to
|
|
|
|
.bound()
|
|
|
|
|
|
|
|
Creating links and registering subdev nodes during the .complete()
|
|
|
|
callback has the unfortunate effect of preventing all cameras that
|
|
|
|
connect to a notifier from working if any one of their drivers fails
|
|
|
|
to probe. Moving the functionality from .complete() to .bound() allows
|
|
|
|
those camera sensor drivers that did probe correctly to work regardless.
|
|
|
|
|
|
|
|
Signed-off-by: Daniel Scally <djrscally@gmail.com>
|
|
|
|
Patchset: cameras
|
|
|
|
---
|
|
|
|
drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 65 +++++++------------
|
|
|
|
1 file changed, 23 insertions(+), 42 deletions(-)
|
|
|
|
|
|
|
|
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
|
|
|
|
index a3fe547b7fce..5648f29ced7b 100644
|
|
|
|
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
|
|
|
|
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
|
|
|
|
@@ -1383,7 +1383,10 @@ static int cio2_notifier_bound(struct v4l2_async_notifier *notifier,
|
|
|
|
{
|
|
|
|
struct cio2_device *cio2 = to_cio2_device(notifier);
|
|
|
|
struct sensor_async_subdev *s_asd = to_sensor_asd(asd);
|
|
|
|
+ struct device *dev = &cio2->pci_dev->dev;
|
|
|
|
struct cio2_queue *q;
|
|
|
|
+ unsigned int pad;
|
|
|
|
+ int ret;
|
|
|
|
|
|
|
|
if (cio2->queue[s_asd->csi2.port].sensor)
|
|
|
|
return -EBUSY;
|
|
|
|
@@ -1394,7 +1397,26 @@ static int cio2_notifier_bound(struct v4l2_async_notifier *notifier,
|
|
|
|
q->sensor = sd;
|
|
|
|
q->csi_rx_base = cio2->base + CIO2_REG_PIPE_BASE(q->csi2.port);
|
|
|
|
|
|
|
|
- return 0;
|
|
|
|
+ for (pad = 0; pad < q->sensor->entity.num_pads; pad++)
|
|
|
|
+ if (q->sensor->entity.pads[pad].flags &
|
|
|
|
+ MEDIA_PAD_FL_SOURCE)
|
|
|
|
+ break;
|
|
|
|
+
|
|
|
|
+ if (pad == q->sensor->entity.num_pads) {
|
|
|
|
+ dev_err(dev, "failed to find src pad for %s\n",
|
|
|
|
+ q->sensor->name);
|
|
|
|
+ return -ENXIO;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ ret = media_create_pad_link(&q->sensor->entity, pad, &q->subdev.entity,
|
|
|
|
+ CIO2_PAD_SINK, 0);
|
|
|
|
+ if (ret) {
|
|
|
|
+ dev_err(dev, "failed to create link for %s\n",
|
|
|
|
+ q->sensor->name);
|
|
|
|
+ return ret;
|
|
|
|
+ }
|
|
|
|
+
|
|
|
|
+ return v4l2_device_register_subdev_nodes(&cio2->v4l2_dev);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The .unbind callback */
|
|
|
|
@@ -1408,50 +1430,9 @@ static void cio2_notifier_unbind(struct v4l2_async_notifier *notifier,
|
|
|
|
cio2->queue[s_asd->csi2.port].sensor = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
-/* .complete() is called after all subdevices have been located */
|
|
|
|
-static int cio2_notifier_complete(struct v4l2_async_notifier *notifier)
|
|
|
|
-{
|
|
|
|
- struct cio2_device *cio2 = to_cio2_device(notifier);
|
|
|
|
- struct device *dev = &cio2->pci_dev->dev;
|
|
|
|
- struct sensor_async_subdev *s_asd;
|
|
|
|
- struct v4l2_async_subdev *asd;
|
|
|
|
- struct cio2_queue *q;
|
|
|
|
- unsigned int pad;
|
|
|
|
- int ret;
|
|
|
|
-
|
|
|
|
- list_for_each_entry(asd, &cio2->notifier.asd_list, asd_list) {
|
|
|
|
- s_asd = to_sensor_asd(asd);
|
|
|
|
- q = &cio2->queue[s_asd->csi2.port];
|
|
|
|
-
|
|
|
|
- for (pad = 0; pad < q->sensor->entity.num_pads; pad++)
|
|
|
|
- if (q->sensor->entity.pads[pad].flags &
|
|
|
|
- MEDIA_PAD_FL_SOURCE)
|
|
|
|
- break;
|
|
|
|
-
|
|
|
|
- if (pad == q->sensor->entity.num_pads) {
|
|
|
|
- dev_err(dev, "failed to find src pad for %s\n",
|
|
|
|
- q->sensor->name);
|
|
|
|
- return -ENXIO;
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- ret = media_create_pad_link(
|
|
|
|
- &q->sensor->entity, pad,
|
|
|
|
- &q->subdev.entity, CIO2_PAD_SINK,
|
|
|
|
- 0);
|
|
|
|
- if (ret) {
|
|
|
|
- dev_err(dev, "failed to create link for %s\n",
|
|
|
|
- q->sensor->name);
|
|
|
|
- return ret;
|
|
|
|
- }
|
|
|
|
- }
|
|
|
|
-
|
|
|
|
- return v4l2_device_register_subdev_nodes(&cio2->v4l2_dev);
|
|
|
|
-}
|
|
|
|
-
|
|
|
|
static const struct v4l2_async_notifier_operations cio2_async_ops = {
|
|
|
|
.bound = cio2_notifier_bound,
|
|
|
|
.unbind = cio2_notifier_unbind,
|
|
|
|
- .complete = cio2_notifier_complete,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int cio2_parse_firmware(struct cio2_device *cio2)
|
|
|
|
--
|
2022-11-03 13:39:25 +00:00
|
|
|
2.38.1
|
2022-10-14 15:27:29 +00:00
|
|
|
|
2022-11-12 21:57:33 +00:00
|
|
|
From 6148516d49304e7fc633695762fd4ba12b4057a4 Mon Sep 17 00:00:00 2001
|
2022-10-14 15:27:29 +00:00
|
|
|
From: Daniel Scally <djrscally@gmail.com>
|
|
|
|
Date: Thu, 2 Jun 2022 22:15:56 +0100
|
|
|
|
Subject: [PATCH] media: ipu3-cio2: Re-add .complete() to ipu3-cio2
|
|
|
|
|
|
|
|
Removing the .complete() callback had some unintended consequences.
|
|
|
|
Because the VCM driver is not directly linked to the ipu3-cio2
|
|
|
|
driver .bound() never gets called for it, which means its devnode
|
|
|
|
is never created if it probes late. Because .complete() waits for
|
|
|
|
any sub-notifiers to also be complete it is captured in that call.
|
|
|
|
|
|
|
|
Signed-off-by: Daniel Scally <djrscally@gmail.com>
|
|
|
|
Patchset: cameras
|
|
|
|
---
|
|
|
|
drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 9 +++++++++
|
|
|
|
1 file changed, 9 insertions(+)
|
|
|
|
|
|
|
|
diff --git a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
|
|
|
|
index 5648f29ced7b..957a30cd369d 100644
|
|
|
|
--- a/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
|
|
|
|
+++ b/drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
|
|
|
|
@@ -1430,9 +1430,18 @@ static void cio2_notifier_unbind(struct v4l2_async_notifier *notifier,
|
|
|
|
cio2->queue[s_asd->csi2.port].sensor = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
+/* .complete() is called after all subdevices have been located */
|
|
|
|
+static int cio2_notifier_complete(struct v4l2_async_notifier *notifier)
|
|
|
|
+{
|
|
|
|
+ struct cio2_device *cio2 = to_cio2_device(notifier);
|
|
|
|
+
|
|
|
|
+ return v4l2_device_register_subdev_nodes(&cio2->v4l2_dev);
|
|
|
|
+}
|
|
|
|
+
|
|
|
|
static const struct v4l2_async_notifier_operations cio2_async_ops = {
|
|
|
|
.bound = cio2_notifier_bound,
|
|
|
|
.unbind = cio2_notifier_unbind,
|
|
|
|
+ .complete = cio2_notifier_complete,
|
|
|
|
};
|
|
|
|
|
|
|
|
static int cio2_parse_firmware(struct cio2_device *cio2)
|
|
|
|
--
|
2022-11-03 13:39:25 +00:00
|
|
|
2.38.1
|
2022-10-14 15:27:29 +00:00
|
|
|
|
2022-11-12 21:57:33 +00:00
|
|
|
From 812f17227ae50a74cd75c43a9f6fa58dfa8ccac6 Mon Sep 17 00:00:00 2001
|
2022-10-14 15:27:29 +00:00
|
|
|
From: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
|
Date: Fri, 15 Jul 2022 23:48:00 +0200
|
|
|
|
Subject: [PATCH] drivers/media/i2c: Fix DW9719 dependencies
|
|
|
|
|
|
|
|
It should depend on VIDEO_DEV instead of VIDEO_V4L2.
|
|
|
|
|
|
|
|
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
|
Patchset: cameras
|
|
|
|
---
|
|
|
|
drivers/media/i2c/Kconfig | 2 +-
|
|
|
|
1 file changed, 1 insertion(+), 1 deletion(-)
|
|
|
|
|
|
|
|
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
|
|
|
|
index 98d081efeef7..c67966cafe10 100644
|
|
|
|
--- a/drivers/media/i2c/Kconfig
|
|
|
|
+++ b/drivers/media/i2c/Kconfig
|
|
|
|
@@ -823,7 +823,7 @@ config VIDEO_DW9714
|
|
|
|
|
|
|
|
config VIDEO_DW9719
|
|
|
|
tristate "DW9719 lens voice coil support"
|
|
|
|
- depends on I2C && VIDEO_V4L2
|
|
|
|
+ depends on I2C && VIDEO_DEV
|
|
|
|
select MEDIA_CONTROLLER
|
|
|
|
select VIDEO_V4L2_SUBDEV_API
|
|
|
|
select V4L2_ASYNC
|
|
|
|
--
|
2022-11-03 13:39:25 +00:00
|
|
|
2.38.1
|
2022-10-14 15:27:29 +00:00
|
|
|
|
2022-11-12 21:57:33 +00:00
|
|
|
From 79d2968e29d7c65b44cb341d4f8a20cd4e1b277d Mon Sep 17 00:00:00 2001
|
2022-10-14 15:27:29 +00:00
|
|
|
From: Maximilian Luz <luzmaximilian@gmail.com>
|
|
|
|
Date: Wed, 7 Sep 2022 15:38:08 +0200
|
|
|
|
Subject: [PATCH] ipu3-imgu: Fix NULL pointer dereference in
|
|
|
|
imgu_subdev_set_selection()
|
|
|
|
|
|
|
|
Calling v4l2_subdev_get_try_crop() and v4l2_subdev_get_try_compose()
|
|
|
|
with a subdev state of NULL leads to a NULL pointer dereference. This
|
|
|
|
can currently happen in imgu_subdev_set_selection() when the state
|
|
|
|
passed in is NULL, as this method first gets pointers to both the "try"
|
|
|
|
and "active" states and only then decides which to use.
|
|
|
|
|
|
|
|
The same issue has been addressed for imgu_subdev_get_selection() with
|
|
|
|
commit 30d03a0de650 ("ipu3-imgu: Fix NULL pointer dereference in active
|
|
|
|
selection access"). However the issue still persists in
|
|
|
|
imgu_subdev_set_selection().
|
|
|
|
|
|
|
|
Therefore, apply a similar fix as done in the aforementioned commit to
|
|
|
|
imgu_subdev_set_selection(). To keep things a bit cleaner, introduce
|
|
|
|
helper functions for "crop" and "compose" access and use them in both
|
|
|
|
imgu_subdev_set_selection() and imgu_subdev_get_selection().
|
|
|
|
|
|
|
|
Fixes: 0d346d2a6f54 ("media: v4l2-subdev: add subdev-wide state struct")
|
|
|
|
Cc: stable@vger.kernel.org # for v5.14 and later
|
|
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Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
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Patchset: cameras
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---
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drivers/staging/media/ipu3/ipu3-v4l2.c | 57 +++++++++++++++-----------
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1 file changed, 34 insertions(+), 23 deletions(-)
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diff --git a/drivers/staging/media/ipu3/ipu3-v4l2.c b/drivers/staging/media/ipu3/ipu3-v4l2.c
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index 2234bb8d48b3..490ba0eb249b 100644
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--- a/drivers/staging/media/ipu3/ipu3-v4l2.c
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+++ b/drivers/staging/media/ipu3/ipu3-v4l2.c
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@@ -188,6 +188,28 @@ static int imgu_subdev_set_fmt(struct v4l2_subdev *sd,
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return 0;
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}
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+static struct v4l2_rect *
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+imgu_subdev_get_crop(struct imgu_v4l2_subdev *sd,
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+ struct v4l2_subdev_state *sd_state, unsigned int pad,
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+ enum v4l2_subdev_format_whence which)
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+{
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+ if (which == V4L2_SUBDEV_FORMAT_TRY)
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+ return v4l2_subdev_get_try_crop(&sd->subdev, sd_state, pad);
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+ else
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+ return &sd->rect.eff;
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+}
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+
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+static struct v4l2_rect *
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+imgu_subdev_get_compose(struct imgu_v4l2_subdev *sd,
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+ struct v4l2_subdev_state *sd_state, unsigned int pad,
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+ enum v4l2_subdev_format_whence which)
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+{
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+ if (which == V4L2_SUBDEV_FORMAT_TRY)
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+ return v4l2_subdev_get_try_compose(&sd->subdev, sd_state, pad);
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+ else
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+ return &sd->rect.bds;
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+}
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+
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static int imgu_subdev_get_selection(struct v4l2_subdev *sd,
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struct v4l2_subdev_state *sd_state,
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struct v4l2_subdev_selection *sel)
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@@ -200,18 +222,12 @@ static int imgu_subdev_get_selection(struct v4l2_subdev *sd,
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switch (sel->target) {
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case V4L2_SEL_TGT_CROP:
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- if (sel->which == V4L2_SUBDEV_FORMAT_TRY)
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- sel->r = *v4l2_subdev_get_try_crop(sd, sd_state,
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- sel->pad);
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- else
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- sel->r = imgu_sd->rect.eff;
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+ sel->r = *imgu_subdev_get_crop(imgu_sd, sd_state, sel->pad,
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+ sel->which);
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return 0;
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case V4L2_SEL_TGT_COMPOSE:
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- if (sel->which == V4L2_SUBDEV_FORMAT_TRY)
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- sel->r = *v4l2_subdev_get_try_compose(sd, sd_state,
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- sel->pad);
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- else
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- sel->r = imgu_sd->rect.bds;
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+ sel->r = *imgu_subdev_get_compose(imgu_sd, sd_state, sel->pad,
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+ sel->which);
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return 0;
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default:
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return -EINVAL;
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@@ -223,10 +239,9 @@ static int imgu_subdev_set_selection(struct v4l2_subdev *sd,
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struct v4l2_subdev_selection *sel)
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{
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struct imgu_device *imgu = v4l2_get_subdevdata(sd);
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- struct imgu_v4l2_subdev *imgu_sd = container_of(sd,
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- struct imgu_v4l2_subdev,
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- subdev);
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- struct v4l2_rect *rect, *try_sel;
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+ struct imgu_v4l2_subdev *imgu_sd =
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+ container_of(sd, struct imgu_v4l2_subdev, subdev);
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+ struct v4l2_rect *rect;
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dev_dbg(&imgu->pci_dev->dev,
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"set subdev %u sel which %u target 0x%4x rect [%ux%u]",
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@@ -238,22 +253,18 @@ static int imgu_subdev_set_selection(struct v4l2_subdev *sd,
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switch (sel->target) {
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case V4L2_SEL_TGT_CROP:
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- try_sel = v4l2_subdev_get_try_crop(sd, sd_state, sel->pad);
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- rect = &imgu_sd->rect.eff;
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+ rect = imgu_subdev_get_crop(imgu_sd, sd_state, sel->pad,
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+ sel->which);
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break;
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case V4L2_SEL_TGT_COMPOSE:
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- try_sel = v4l2_subdev_get_try_compose(sd, sd_state, sel->pad);
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- rect = &imgu_sd->rect.bds;
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+ rect = imgu_subdev_get_compose(imgu_sd, sd_state, sel->pad,
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+ sel->which);
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break;
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default:
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return -EINVAL;
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}
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- if (sel->which == V4L2_SUBDEV_FORMAT_TRY)
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- *try_sel = sel->r;
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- else
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- *rect = sel->r;
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-
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+ *rect = sel->r;
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return 0;
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}
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--
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2022-11-03 13:39:25 +00:00
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2.38.1
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2022-10-14 15:27:29 +00:00
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