Add patches for v5.8

Patches have been obtained by rebasing the patches in commit

    23d3bc55ce

onto v5.8.

configs/surface-5.8.config

@@ -0,0 +1,32 @@
+#
+# Surface Aggregator Module
+#
+CONFIG_GPIO_SYSFS=y                         # required for SURFACE_SAM_HPS
+CONFIG_SURFACE_SAM=m
+CONFIG_SURFACE_SAM_SSH=m
+CONFIG_SURFACE_SAM_SSH_ERROR_INJECTION=n
+CONFIG_SURFACE_SAM_DEBUGFS=m
+CONFIG_SURFACE_SAM_SAN=m
+CONFIG_SURFACE_SAM_VHF=m
+CONFIG_SURFACE_SAM_DTX=m
+CONFIG_SURFACE_SAM_HPS=m
+CONFIG_SURFACE_SAM_SID=m
+CONFIG_SURFACE_SAM_SID_GPELID=m
+CONFIG_SURFACE_SAM_SID_PERFMODE=m
+CONFIG_SURFACE_SAM_SID_VHF=m
+CONFIG_SURFACE_SAM_SID_POWER=m
+
+
+#
+# IPTS touchscreen
+#
+CONFIG_TOUCHSCREEN_IPTS=m
+
+#
+# Other Drivers
+#
+CONFIG_INPUT_SOC_BUTTON_ARRAY=m
+CONFIG_SURFACE_3_POWER_OPREGION=m
+CONFIG_SURFACE_3_BUTTON=m
+CONFIG_SURFACE_3_POWER_OPREGION=m
+CONFIG_SURFACE_PRO3_BUTTON=m

patches/5.8/0001-surface3-oemb.patch

@@ -0,0 +1,71 @@
+From 0ea332f8971bbe537bbc43bb76ef790981ce001d Mon Sep 17 00:00:00 2001
+From: Chih-Wei Huang <cwhuang@linux.org.tw>
+Date: Tue, 18 Sep 2018 11:01:37 +0800
+Subject: [PATCH 1/5] surface3-oemb
+
+---
+ drivers/platform/x86/surface3-wmi.c               | 7 +++++++
+ sound/soc/codecs/rt5645.c                         | 9 +++++++++
+ sound/soc/intel/common/soc-acpi-intel-cht-match.c | 8 ++++++++
+ 3 files changed, 24 insertions(+)
+
+diff --git a/drivers/platform/x86/surface3-wmi.c b/drivers/platform/x86/surface3-wmi.c
+index 130b6f52a6001..801083aa56d6d 100644
+--- a/drivers/platform/x86/surface3-wmi.c
++++ b/drivers/platform/x86/surface3-wmi.c
+@@ -37,6 +37,13 @@ static const struct dmi_system_id surface3_dmi_table[] = {
+ 			DMI_MATCH(DMI_PRODUCT_NAME, "Surface 3"),
+ 		},
+ 	},
++	{
++		.matches = {
++			DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
++			DMI_MATCH(DMI_SYS_VENDOR, "OEMB"),
++			DMI_MATCH(DMI_PRODUCT_NAME, "OEMB"),
++		},
++	},
+ #endif
+ 	{ }
+ };
+diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
+index e2e1d5b03b381..5ff38592ba6db 100644
+--- a/sound/soc/codecs/rt5645.c
++++ b/sound/soc/codecs/rt5645.c
+@@ -3687,6 +3687,15 @@ static const struct dmi_system_id dmi_platform_data[] = {
+ 		},
+ 		.driver_data = (void *)&intel_braswell_platform_data,
+ 	},
++	{
++		.ident = "Microsoft Surface 3",
++		.matches = {
++			DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
++			DMI_MATCH(DMI_SYS_VENDOR, "OEMB"),
++			DMI_MATCH(DMI_PRODUCT_NAME, "OEMB"),
++		},
++		.driver_data = (void *)&intel_braswell_platform_data,
++	},
+ 	{
+ 		/*
+ 		 * Match for the GPDwin which unfortunately uses somewhat
+diff --git a/sound/soc/intel/common/soc-acpi-intel-cht-match.c b/sound/soc/intel/common/soc-acpi-intel-cht-match.c
+index 2752dc9557334..ef36a316e2ed6 100644
+--- a/sound/soc/intel/common/soc-acpi-intel-cht-match.c
++++ b/sound/soc/intel/common/soc-acpi-intel-cht-match.c
+@@ -27,6 +27,14 @@ static const struct dmi_system_id cht_table[] = {
+ 			DMI_MATCH(DMI_PRODUCT_NAME, "Surface 3"),
+ 		},
+ 	},
++	{
++		.callback = cht_surface_quirk_cb,
++		.matches = {
++			DMI_MATCH(DMI_BIOS_VENDOR, "American Megatrends Inc."),
++			DMI_MATCH(DMI_SYS_VENDOR, "OEMB"),
++			DMI_MATCH(DMI_PRODUCT_NAME, "OEMB"),
++		},
++	},
+ 	{ }
+ };
+ 
+-- 
+2.28.0
+

patches/5.8/0003-surface-sam-over-hid.patch

@@ -0,0 +1,65 @@
+From 4d82adb6c864e715ea5236dd0a8c971cf63e2dc1 Mon Sep 17 00:00:00 2001
+From: Maximilian Luz <luzmaximilian@gmail.com>
+Date: Sat, 25 Jul 2020 17:19:53 +0200
+Subject: [PATCH 3/5] surface-sam-over-hid
+
+---
+ drivers/i2c/i2c-core-acpi.c | 35 +++++++++++++++++++++++++++++++++++
+ 1 file changed, 35 insertions(+)
+
+diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
+index 2ade99b105b91..60b9cb51d5f7e 100644
+--- a/drivers/i2c/i2c-core-acpi.c
++++ b/drivers/i2c/i2c-core-acpi.c
+@@ -574,6 +574,28 @@ static int acpi_gsb_i2c_write_bytes(struct i2c_client *client,
+ 	return (ret == 1) ? 0 : -EIO;
+ }
+ 
++static int acpi_gsb_i2c_write_raw_bytes(struct i2c_client *client,
++		u8 *data, u8 data_len)
++{
++	struct i2c_msg msgs[1];
++	int ret = AE_OK;
++
++	msgs[0].addr = client->addr;
++	msgs[0].flags = client->flags;
++	msgs[0].len = data_len + 1;
++	msgs[0].buf = data;
++
++	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
++
++	if (ret < 0) {
++		dev_err(&client->adapter->dev, "i2c write failed: %d\n", ret);
++		return ret;
++	}
++
++	/* 1 transfer must have completed successfully */
++	return (ret == 1) ? 0 : -EIO;
++}
++
+ static acpi_status
+ i2c_acpi_space_handler(u32 function, acpi_physical_address command,
+ 			u32 bits, u64 *value64,
+@@ -675,6 +697,19 @@ i2c_acpi_space_handler(u32 function, acpi_physical_address command,
+ 		}
+ 		break;
+ 
++	case ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES:
++		if (action == ACPI_READ) {
++			dev_warn(&adapter->dev,
++				 "protocol 0x%02x not supported for client 0x%02x\n",
++				 accessor_type, client->addr);
++			ret = AE_BAD_PARAMETER;
++			goto err;
++		} else {
++			status = acpi_gsb_i2c_write_raw_bytes(client,
++					gsb->data, info->access_length);
++		}
++		break;
++
+ 	default:
+ 		dev_warn(&adapter->dev, "protocol 0x%02x not supported for client 0x%02x\n",
+ 			 accessor_type, client->addr);
+-- 
+2.28.0
+

patches/5.8/0004-wifi.patch

@@ -0,0 +1,255 @@
+From e20265c4b4f99cc46dfb5e481dff4a2be2ed3fd5 Mon Sep 17 00:00:00 2001
+From: kitakar5525 <34676735+kitakar5525@users.noreply.github.com>
+Date: Thu, 20 Feb 2020 16:51:11 +0900
+Subject: [PATCH 4/5] wifi
+
+---
+ .../net/wireless/marvell/mwifiex/cfg80211.c   | 26 ++++++
+ drivers/net/wireless/marvell/mwifiex/pcie.c   | 84 +++++++++++--------
+ .../net/wireless/marvell/mwifiex/sta_cmd.c    | 31 ++-----
+ 3 files changed, 84 insertions(+), 57 deletions(-)
+
+diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+index 4e4f59c17ded3..528eedfbf41c9 100644
+--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
++++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+@@ -25,6 +25,11 @@
+ static char *reg_alpha2;
+ module_param(reg_alpha2, charp, 0);
+ 
++static bool allow_ps_mode;
++module_param(allow_ps_mode, bool, 0444);
++MODULE_PARM_DESC(allow_ps_mode,
++		 "allow WiFi power management to be enabled. (default: disallowed)");
++
+ static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = {
+ 	{
+ 		.max = 3, .types = BIT(NL80211_IFTYPE_STATION) |
+@@ -434,6 +439,27 @@ mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy,
+ 
+ 	ps_mode = enabled;
+ 
++	/* Allow ps_mode to be enabled only when allow_ps_mode is set
++	 * (but always allow ps_mode to be disabled in case it gets enabled
++	 * for unknown reason and you want to disable it) */
++	if (ps_mode && !allow_ps_mode) {
++		dev_info(priv->adapter->dev,
++			    "Request to enable ps_mode received but it's disallowed "
++			    "by module parameter. Rejecting the request.\n");
++
++		/* Return negative value to inform userspace tools that setting
++		 * power_save to be enabled is not permitted. */
++		return -1;
++	}
++
++	if (ps_mode)
++		dev_warn(priv->adapter->dev,
++			    "WARN: Request to enable ps_mode received. Enabling it. "
++			    "Disable it if you encounter connection instability.\n");
++	else
++		dev_info(priv->adapter->dev,
++			    "Request to disable ps_mode received. Disabling it.\n");
++
+ 	return mwifiex_drv_set_power(priv, &ps_mode);
+ }
+ 
+diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
+index 87b4ccca4b9a2..3bdad5e80ecbb 100644
+--- a/drivers/net/wireless/marvell/mwifiex/pcie.c
++++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
+@@ -146,38 +146,45 @@ static bool mwifiex_pcie_ok_to_access_hw(struct mwifiex_adapter *adapter)
+  *
+  * If already not suspended, this function allocates and sends a host
+  * sleep activate request to the firmware and turns off the traffic.
++ *
++ * XXX: ignoring all the above comment and just removes the card to
++ * fix S0ix and "AP scanning (sometimes) not working after suspend".
++ * Required code is extracted from mwifiex_pcie_remove().
+  */
+ static int mwifiex_pcie_suspend(struct device *dev)
+ {
++	struct pci_dev *pdev = to_pci_dev(dev);
++	struct pcie_service_card *card = pci_get_drvdata(pdev);
+ 	struct mwifiex_adapter *adapter;
+-	struct pcie_service_card *card = dev_get_drvdata(dev);
+-
++	struct mwifiex_private *priv;
++	const struct mwifiex_pcie_card_reg *reg;
++	u32 fw_status;
++	int ret;
+ 
+ 	/* Might still be loading firmware */
+ 	wait_for_completion(&card->fw_done);
+ 
+ 	adapter = card->adapter;
+-	if (!adapter) {
+-		dev_err(dev, "adapter is not valid\n");
++	if (!adapter || !adapter->priv_num)
+ 		return 0;
+-	}
+ 
+-	mwifiex_enable_wake(adapter);
++	reg = card->pcie.reg;
++	if (reg)
++		ret = mwifiex_read_reg(adapter, reg->fw_status, &fw_status);
++	else
++		fw_status = -1;
+ 
+-	/* Enable the Host Sleep */
+-	if (!mwifiex_enable_hs(adapter)) {
+-		mwifiex_dbg(adapter, ERROR,
+-			    "cmd: failed to suspend\n");
+-		clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
+-		mwifiex_disable_wake(adapter);
+-		return -EFAULT;
+-	}
++	if (fw_status == FIRMWARE_READY_PCIE && !adapter->mfg_mode) {
++		mwifiex_deauthenticate_all(adapter);
+ 
+-	flush_workqueue(adapter->workqueue);
++		priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY);
++
++		mwifiex_disable_auto_ds(priv);
+ 
+-	/* Indicate device suspended */
+-	set_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags);
+-	clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags);
++		mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN);
++	}
++
++	mwifiex_remove_card(adapter);
+ 
+ 	return 0;
+ }
+@@ -189,31 +196,35 @@ static int mwifiex_pcie_suspend(struct device *dev)
+  *
+  * If already not resumed, this function turns on the traffic and
+  * sends a host sleep cancel request to the firmware.
++ *
++ * XXX: ignoring all the above comment and probes the card that was
++ * removed on suspend. Required code is extracted from mwifiex_pcie_probe().
+  */
+ static int mwifiex_pcie_resume(struct device *dev)
+ {
+-	struct mwifiex_adapter *adapter;
+-	struct pcie_service_card *card = dev_get_drvdata(dev);
++	struct pci_dev *pdev = to_pci_dev(dev);
++	struct pcie_service_card *card = pci_get_drvdata(pdev);
++	int ret;
+ 
++	pr_debug("info: vendor=0x%4.04X device=0x%4.04X rev=%d\n",
++		 pdev->vendor, pdev->device, pdev->revision);
+ 
+-	if (!card->adapter) {
+-		dev_err(dev, "adapter structure is not valid\n");
+-		return 0;
+-	}
++	init_completion(&card->fw_done);
+ 
+-	adapter = card->adapter;
++	card->dev = pdev;
+ 
+-	if (!test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) {
+-		mwifiex_dbg(adapter, WARN,
+-			    "Device already resumed\n");
+-		return 0;
++	/* device tree node parsing and platform specific configuration */
++	if (pdev->dev.of_node) {
++		ret = mwifiex_pcie_probe_of(&pdev->dev);
++		if (ret)
++			return ret;
+ 	}
+ 
+-	clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags);
+-
+-	mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA),
+-			  MWIFIEX_ASYNC_CMD);
+-	mwifiex_disable_wake(adapter);
++	if (mwifiex_add_card(card, &card->fw_done, &pcie_ops,
++			MWIFIEX_PCIE, &pdev->dev)) {
++		pr_err("%s failed\n", __func__);
++		return -1;
++	}
+ 
+ 	return 0;
+ }
+@@ -229,8 +240,13 @@ static int mwifiex_pcie_probe(struct pci_dev *pdev,
+ 					const struct pci_device_id *ent)
+ {
+ 	struct pcie_service_card *card;
++	struct pci_dev *parent_pdev = pci_upstream_bridge(pdev);
+ 	int ret;
+ 
++	/* disable bridge_d3 to fix driver crashing after suspend on gen4+
++	 * Surface devices */
++	parent_pdev->bridge_d3 = false;
++
+ 	pr_debug("info: vendor=0x%4.04X device=0x%4.04X rev=%d\n",
+ 		 pdev->vendor, pdev->device, pdev->revision);
+ 
+diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
+index 8bd355d7974e9..256c8c38deee3 100644
+--- a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
++++ b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c
+@@ -2247,7 +2247,6 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no,
+  *      - Function init (for first interface only)
+  *      - Read MAC address (for first interface only)
+  *      - Reconfigure Tx buffer size (for first interface only)
+- *      - Enable auto deep sleep (for first interface only)
+  *      - Get Tx rate
+  *      - Get Tx power
+  *      - Set IBSS coalescing status
+@@ -2260,7 +2259,6 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta, bool init)
+ 	struct mwifiex_adapter *adapter = priv->adapter;
+ 	int ret;
+ 	struct mwifiex_ds_11n_amsdu_aggr_ctrl amsdu_aggr_ctrl;
+-	struct mwifiex_ds_auto_ds auto_ds;
+ 	enum state_11d_t state_11d;
+ 	struct mwifiex_ds_11n_tx_cfg tx_cfg;
+ 	u8 sdio_sp_rx_aggr_enable;
+@@ -2332,16 +2330,10 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta, bool init)
+ 		if (ret)
+ 			return -1;
+ 
+-		if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
+-			/* Enable IEEE PS by default */
+-			priv->adapter->ps_mode = MWIFIEX_802_11_POWER_MODE_PSP;
+-			ret = mwifiex_send_cmd(priv,
+-					       HostCmd_CMD_802_11_PS_MODE_ENH,
+-					       EN_AUTO_PS, BITMAP_STA_PS, NULL,
+-					       true);
+-			if (ret)
+-				return -1;
+-		}
++		/* Not enabling ps_mode (IEEE power_save) by default. Enabling
++		 * this causes connection instability, especially on 5GHz APs
++		 * and eventually causes "firmware wakeup failed". Therefore,
++		 * the relevant code was removed from here. */
+ 
+ 		if (drcs) {
+ 			adapter->drcs_enabled = true;
+@@ -2388,17 +2380,10 @@ int mwifiex_sta_init_cmd(struct mwifiex_private *priv, u8 first_sta, bool init)
+ 	if (ret)
+ 		return -1;
+ 
+-	if (!disable_auto_ds && first_sta &&
+-	    priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
+-		/* Enable auto deep sleep */
+-		auto_ds.auto_ds = DEEP_SLEEP_ON;
+-		auto_ds.idle_time = DEEP_SLEEP_IDLE_TIME;
+-		ret = mwifiex_send_cmd(priv, HostCmd_CMD_802_11_PS_MODE_ENH,
+-				       EN_AUTO_PS, BITMAP_AUTO_DS,
+-				       &auto_ds, true);
+-		if (ret)
+-			return -1;
+-	}
++	/* Not enabling auto deep sleep (auto_ds) by default. Enabling
++	 * this reportedly causes "suspend/resume fails when not connected
++	 * to an Access Point." Therefore, the relevant code was removed
++	 * from here. */
+ 
+ 	if (priv->bss_type != MWIFIEX_BSS_TYPE_UAP) {
+ 		/* Send cmd to FW to enable/disable 11D function */
+-- 
+2.28.0
+