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linux-surface/patches/6.1/0012-cameras.patch
Maximilian Luz 5ccc1d3da5
Update v6.1 patches 
Changes:
 - Add driver for reading fan speed via SAM (Surface Pro 9)
 - Add driver for reading temperature via SAM (Surface Pro 9)
 - Rebase onto v6.1.72

Links:
 - kernel: de848841cb
 - fan speed driver: https://github.com/linux-surface/kernel/pull/144
2024-01-13 01:16:03 +01:00

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From 7ecc92829a8ef7d72bcbdd98206ba28604ea8812 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 10 Oct 2021 20:56:57 +0200
Subject: [PATCH] ACPI: delay enumeration of devices with a _DEP pointing to an
INT3472 device
The clk and regulator frameworks expect clk/regulator consumer-devices
to have info about the consumed clks/regulators described in the device's
fw_node.
To work around cases where this info is not present in the firmware tables,
which is often the case on x86/ACPI devices, both frameworks allow the
provider-driver to attach info about consumers to the clks/regulators
when registering these.
This causes problems with the probe ordering wrt drivers for consumers
of these clks/regulators. Since the lookups are only registered when the
provider-driver binds, trying to get these clks/regulators before then
results in a -ENOENT error for clks and a dummy regulator for regulators.
One case where we hit this issue is camera sensors such as e.g. the OV8865
sensor found on the Microsoft Surface Go. The sensor uses clks, regulators
and GPIOs provided by a TPS68470 PMIC which is described in an INT3472
ACPI device. There is special platform code handling this and setting
platform_data with the necessary consumer info on the MFD cells
instantiated for the PMIC under: drivers/platform/x86/intel/int3472.
For this to work properly the ov8865 driver must not bind to the I2C-client
for the OV8865 sensor until after the TPS68470 PMIC gpio, regulator and
clk MFD cells have all been fully setup.
The OV8865 on the Microsoft Surface Go is just one example, all X86
devices using the Intel IPU3 camera block found on recent Intel SoCs
have similar issues where there is an INT3472 HID ACPI-device, which
describes the clks and regulators, and the driver for this INT3472 device
must be fully initialized before the sensor driver (any sensor driver)
binds for things to work properly.
On these devices the ACPI nodes describing the sensors all have a _DEP
dependency on the matching INT3472 ACPI device (there is one per sensor).
This allows solving the probe-ordering problem by delaying the enumeration
(instantiation of the I2C-client in the ov8865 example) of ACPI-devices
which have a _DEP dependency on an INT3472 device.
The new acpi_dev_ready_for_enumeration() helper used for this is also
exported because for devices, which have the enumeration_by_parent flag
set, the parent-driver will do its own scan of child ACPI devices and
it will try to enumerate those during its probe(). Code doing this such
as e.g. the i2c-core-acpi.c code must call this new helper to ensure
that it too delays the enumeration until all the _DEP dependencies are
met on devices which have the new honor_deps flag set.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Patchset: cameras
---
drivers/acpi/scan.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 94154a849a3ea..f7e57d1a72a0b 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2112,6 +2112,9 @@ static acpi_status acpi_bus_check_add_2(acpi_handle handle, u32 lvl_not_used,
static void acpi_default_enumeration(struct acpi_device *device)
{
+ if (!acpi_dev_ready_for_enumeration(device))
+ return;
+
/*
* Do not enumerate devices with enumeration_by_parent flag set as
* they will be enumerated by their respective parents.
--
2.43.0
From fd84aad54e69b35cb8fd04b2c51ca5a74925d1fe Mon Sep 17 00:00:00 2001
From: zouxiaoh <xiaohong.zou@intel.com>
Date: Fri, 25 Jun 2021 08:52:59 +0800
Subject: [PATCH] iommu: intel-ipu: use IOMMU passthrough mode for Intel IPUs
Intel IPU(Image Processing Unit) has its own (IO)MMU hardware,
The IPU driver allocates its own page table that is not mapped
via the DMA, and thus the Intel IOMMU driver blocks access giving
this error: DMAR: DRHD: handling fault status reg 3 DMAR:
[DMA Read] Request device [00:05.0] PASID ffffffff
fault addr 76406000 [fault reason 06] PTE Read access is not set
As IPU is not an external facing device which is not risky, so use
IOMMU passthrough mode for Intel IPUs.
Change-Id: I6dcccdadac308cf42e20a18e1b593381391e3e6b
Depends-On: Iacd67578e8c6a9b9ac73285f52b4081b72fb68a6
Tracked-On: #JIITL8-411
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: zouxiaoh <xiaohong.zou@intel.com>
Signed-off-by: Xu Chongyang <chongyang.xu@intel.com>
Patchset: cameras
---
drivers/iommu/intel/iommu.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index 694feb396f77c..9433f235558a6 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -37,6 +37,12 @@
#define IS_GFX_DEVICE(pdev) ((pdev->class >> 16) == PCI_BASE_CLASS_DISPLAY)
#define IS_USB_DEVICE(pdev) ((pdev->class >> 8) == PCI_CLASS_SERIAL_USB)
#define IS_ISA_DEVICE(pdev) ((pdev->class >> 8) == PCI_CLASS_BRIDGE_ISA)
+#define IS_INTEL_IPU(pdev) ((pdev)->vendor == PCI_VENDOR_ID_INTEL && \
+ ((pdev)->device == 0x9a19 || \
+ (pdev)->device == 0x9a39 || \
+ (pdev)->device == 0x4e19 || \
+ (pdev)->device == 0x465d || \
+ (pdev)->device == 0x1919))
#define IS_IPTS(pdev) ((pdev)->vendor == PCI_VENDOR_ID_INTEL && \
((pdev)->device == 0x9d3e))
#define IS_AZALIA(pdev) ((pdev)->vendor == 0x8086 && (pdev)->device == 0x3a3e)
@@ -289,12 +295,14 @@ EXPORT_SYMBOL_GPL(intel_iommu_enabled);
static int dmar_map_gfx = 1;
static int dmar_map_ipts = 1;
+static int dmar_map_ipu = 1;
static int intel_iommu_superpage = 1;
static int iommu_identity_mapping;
static int iommu_skip_te_disable;
#define IDENTMAP_GFX 2
#define IDENTMAP_AZALIA 4
+#define IDENTMAP_IPU 8
#define IDENTMAP_IPTS 16
const struct iommu_ops intel_iommu_ops;
@@ -2630,6 +2638,9 @@ static int device_def_domain_type(struct device *dev)
if ((iommu_identity_mapping & IDENTMAP_GFX) && IS_GFX_DEVICE(pdev))
return IOMMU_DOMAIN_IDENTITY;
+ if ((iommu_identity_mapping & IDENTMAP_IPU) && IS_INTEL_IPU(pdev))
+ return IOMMU_DOMAIN_IDENTITY;
+
if ((iommu_identity_mapping & IDENTMAP_IPTS) && IS_IPTS(pdev))
return IOMMU_DOMAIN_IDENTITY;
}
@@ -3021,6 +3032,9 @@ static int __init init_dmars(void)
if (!dmar_map_gfx)
iommu_identity_mapping |= IDENTMAP_GFX;
+ if (!dmar_map_ipu)
+ iommu_identity_mapping |= IDENTMAP_IPU;
+
if (!dmar_map_ipts)
iommu_identity_mapping |= IDENTMAP_IPTS;
@@ -4819,6 +4833,18 @@ static void quirk_iommu_igfx(struct pci_dev *dev)
dmar_map_gfx = 0;
}
+static void quirk_iommu_ipu(struct pci_dev *dev)
+{
+ if (!IS_INTEL_IPU(dev))
+ return;
+
+ if (risky_device(dev))
+ return;
+
+ pci_info(dev, "Passthrough IOMMU for integrated Intel IPU\n");
+ dmar_map_ipu = 0;
+}
+
static void quirk_iommu_ipts(struct pci_dev *dev)
{
if (!IS_IPTS(dev))
@@ -4830,6 +4856,7 @@ static void quirk_iommu_ipts(struct pci_dev *dev)
pci_info(dev, "Passthrough IOMMU for IPTS\n");
dmar_map_ipts = 0;
}
+
/* G4x/GM45 integrated gfx dmar support is totally busted. */
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2a40, quirk_iommu_igfx);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x2e00, quirk_iommu_igfx);
@@ -4865,6 +4892,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1632, quirk_iommu_igfx);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x163A, quirk_iommu_igfx);
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x163D, quirk_iommu_igfx);
+/* disable IPU dmar support */
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, quirk_iommu_ipu);
+
/* disable IPTS dmar support */
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x9D3E, quirk_iommu_ipts);
--
2.43.0
From cca4eb146265a784e63927905e26b1e5f331ca9e Mon Sep 17 00:00:00 2001
From: Daniel Scally <djrscally@gmail.com>
Date: Sun, 10 Oct 2021 20:57:02 +0200
Subject: [PATCH] platform/x86: int3472: Enable I2c daisy chain
The TPS68470 PMIC has an I2C passthrough mode through which I2C traffic
can be forwarded to a device connected to the PMIC as though it were
connected directly to the system bus. Enable this mode when the chip
is initialised.
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Patchset: cameras
---
drivers/platform/x86/intel/int3472/tps68470.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/platform/x86/intel/int3472/tps68470.c b/drivers/platform/x86/intel/int3472/tps68470.c
index 5b8d1a9620a5d..6a0ff035cf209 100644
--- a/drivers/platform/x86/intel/int3472/tps68470.c
+++ b/drivers/platform/x86/intel/int3472/tps68470.c
@@ -46,6 +46,13 @@ static int tps68470_chip_init(struct device *dev, struct regmap *regmap)
return ret;
}
+ /* Enable I2C daisy chain */
+ ret = regmap_write(regmap, TPS68470_REG_S_I2C_CTL, 0x03);
+ if (ret) {
+ dev_err(dev, "Failed to enable i2c daisy chain\n");
+ return ret;
+ }
+
dev_info(dev, "TPS68470 REVID: 0x%02x\n", version);
return 0;
--
2.43.0
From 716a93d4a35978478ede30d2fe53edb617cccecd Mon Sep 17 00:00:00 2001
From: Daniel Scally <djrscally@gmail.com>
Date: Thu, 28 Oct 2021 21:55:16 +0100
Subject: [PATCH] media: i2c: Add driver for DW9719 VCM
Add a driver for the DW9719 VCM. The driver creates a v4l2 subdevice
and registers a control to set the desired focus.
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Patchset: cameras
---
MAINTAINERS | 7 +
drivers/media/i2c/Kconfig | 11 +
drivers/media/i2c/Makefile | 1 +
drivers/media/i2c/dw9719.c | 425 +++++++++++++++++++++++++++++++++++++
4 files changed, 444 insertions(+)
create mode 100644 drivers/media/i2c/dw9719.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 9f7702a82842d..abaf95390a51d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6286,6 +6286,13 @@ T: git git://linuxtv.org/media_tree.git
F: Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.yaml
F: drivers/media/i2c/dw9714.c
+DONGWOON DW9719 LENS VOICE COIL DRIVER
+M: Daniel Scally <djrscally@gmail.com>
+L: linux-media@vger.kernel.org
+S: Maintained
+T: git git://linuxtv.org/media_tree.git
+F: drivers/media/i2c/dw9719.c
+
DONGWOON DW9768 LENS VOICE COIL DRIVER
M: Dongchun Zhu <dongchun.zhu@mediatek.com>
L: linux-media@vger.kernel.org
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index a34afb5217ebc..fbaa2ce7fa3e6 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -828,6 +828,17 @@ config VIDEO_DW9714
capability. This is designed for linear control of
voice coil motors, controlled via I2C serial interface.
+config VIDEO_DW9719
+ tristate "DW9719 lens voice coil support"
+ depends on I2C && VIDEO_V4L2
+ select MEDIA_CONTROLLER
+ select VIDEO_V4L2_SUBDEV_API
+ select V4L2_ASYNC
+ help
+ This is a driver for the DW9719 camera lens voice coil.
+ This is designed for linear control of voice coil motors,
+ controlled via I2C serial interface.
+
config VIDEO_DW9768
tristate "DW9768 lens voice coil support"
depends on I2C && VIDEO_DEV
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index 0a2933103dd92..b82a07c763880 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 0000000000000..180b04d2a6b3a
--- /dev/null
+++ b/drivers/media/i2c/dw9719.c
@@ -0,0 +1,425 @@
+// 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 void 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);
+}
+
+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");
--
2.43.0
From f9d1bedc67d54e559ca0fd669a1c2de935d25f4d Mon Sep 17 00:00:00 2001
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 1bbe58b24d99d..159f0d6cab8fc 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)
--
2.43.0
From 3f45027dbb29e48aeafa0a38bfaf0b91c4e8df37 Mon Sep 17 00:00:00 2001
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 159f0d6cab8fc..0b2abfa0c724a 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)
--
2.43.0
From c723c6f4308f67bae95e6898fdaa894a4e2915f2 Mon Sep 17 00:00:00 2001
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 fbaa2ce7fa3e6..7a46ad85dbd4c 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -830,7 +830,7 @@ 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
--
2.43.0
From b948cd12ca7eed99efdd9e9441934e4ac1dcf627 Mon Sep 17 00:00:00 2001
From: Daniel Scally <dan.scally@ideasonboard.com>
Date: Thu, 2 Mar 2023 12:59:39 +0000
Subject: [PATCH] platform/x86: int3472: Remap reset GPIO for INT347E
ACPI _HID INT347E represents the OmniVision 7251 camera sensor. The
driver for this sensor expects a single pin named "enable", but on
some Microsoft Surface platforms the sensor is assigned a single
GPIO who's type flag is INT3472_GPIO_TYPE_RESET.
Remap the GPIO pin's function from "reset" to "enable". This is done
outside of the existing remap table since it is a more widespread
discrepancy than that method is designed for. Additionally swap the
polarity of the pin to match the driver's expectation.
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
Patchset: cameras
---
drivers/platform/x86/intel/int3472/discrete.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
index c42c3faa2c32d..6f4b8e24eb56c 100644
--- a/drivers/platform/x86/intel/int3472/discrete.c
+++ b/drivers/platform/x86/intel/int3472/discrete.c
@@ -108,6 +108,9 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347
{
const struct int3472_sensor_config *sensor_config;
char *path = agpio->resource_source.string_ptr;
+ const struct acpi_device_id ov7251_ids[] = {
+ { "INT347E" },
+ };
struct gpiod_lookup *table_entry;
struct acpi_device *adev;
acpi_handle handle;
@@ -130,6 +133,17 @@ static int skl_int3472_map_gpio_to_sensor(struct int3472_discrete_device *int347
}
}
+ /*
+ * In addition to the function remap table we need to bulk remap the
+ * "reset" GPIO for the OmniVision 7251 sensor, as the driver for that
+ * expects its only GPIO pin to be called "enable" (and to have the
+ * opposite polarity).
+ */
+ if (!strcmp(func, "reset") && !acpi_match_device_ids(int3472->sensor, ov7251_ids)) {
+ func = "enable";
+ polarity = GPIO_ACTIVE_HIGH;
+ }
+
/* Functions mapped to NULL should not be mapped to the sensor */
if (!func)
return 0;
--
2.43.0
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