platform-drivers-x86 for 4.6-2

An S4 fix for intel-hid, new platform "quirk" for hp_accel, a fix for broader
 support of ACPI resources for the Intel Punit, and a few uninitialized variable
 fixes.
 
 intel punit:
  - decouple telemetry driver from the optional IPC resources
 
 thinkpad_acpi:
  - Silence an uninitialized variable warning
 
 intel_telemetry_pltdrv:
  - Silence an uninitialized variable warning
 
 hp_accel:
  - Silence an uninitialized variable warning
  - Add support for HP ProBook 440 G3
 
 intel-hid:
  - add a workaround to ignore an event after waking up from S4.
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Merge tag 'platform-drivers-x86-v4.6-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86

Pull x86 platform driver fixes from Darren Hart:
 "An S4 fix for intel-hid, new platform 'quirk' for hp_accel, a fix for
  broader support of ACPI resources for the Intel P-unit, and a few
  uninitialized variable fixes.

  intel p-unit:
   - decouple telemetry driver from the optional IPC resources

  thinkpad_acpi:
   - Silence an uninitialized variable warning

  intel_telemetry_pltdrv:
   - Silence an uninitialized variable warning

  hp_accel:
   - Silence an uninitialized variable warning
   - Add support for HP ProBook 440 G3

  intel-hid:
   - add a workaround to ignore an event after waking up from S4"

* tag 'platform-drivers-x86-v4.6-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86:
  platform:x86 decouple telemetry driver from the optional IPC resources
  thinkpad_acpi: Silence an uninitialized variable warning
  intel_telemetry_pltdrv: Silence an uninitialized variable warning
  hp_accel: Silence an uninitialized variable warning
  hp_accel: Add support for HP ProBook 440 G3
  intel-hid: add a workaround to ignore an event after waking up from S4.

drivers/platform/x86/hp_accel.c

@@ -127,8 +127,10 @@ static int lis3lv02d_acpi_read(struct lis3lv02d *lis3, int reg, u8 *ret)
 	arg0.integer.value = reg;
 
 	status = acpi_evaluate_integer(dev->handle, "ALRD", &args, &lret);
+	if (ACPI_FAILURE(status))
+		return -EINVAL;
 	*ret = lret;
-	return (status != AE_OK) ? -EINVAL : 0;
+	return 0;
 }
 
 /**
@@ -173,6 +175,7 @@ static int lis3lv02d_dmi_matched(const struct dmi_system_id *dmi)
 DEFINE_CONV(normal, 1, 2, 3);
 DEFINE_CONV(y_inverted, 1, -2, 3);
 DEFINE_CONV(x_inverted, -1, 2, 3);
+DEFINE_CONV(x_inverted_usd, -1, 2, -3);
 DEFINE_CONV(z_inverted, 1, 2, -3);
 DEFINE_CONV(xy_swap, 2, 1, 3);
 DEFINE_CONV(xy_rotated_left, -2, 1, 3);
@@ -236,6 +239,7 @@ static const struct dmi_system_id lis3lv02d_dmi_ids[] = {
 	AXIS_DMI_MATCH("HP8710", "HP Compaq 8710", y_inverted),
 	AXIS_DMI_MATCH("HDX18", "HP HDX 18", x_inverted),
 	AXIS_DMI_MATCH("HPB432x", "HP ProBook 432", xy_rotated_left),
+	AXIS_DMI_MATCH("HPB440G3", "HP ProBook 440 G3", x_inverted_usd),
 	AXIS_DMI_MATCH("HPB442x", "HP ProBook 442", xy_rotated_left),
 	AXIS_DMI_MATCH("HPB452x", "HP ProBook 452", y_inverted),
 	AXIS_DMI_MATCH("HPB522x", "HP ProBook 522", xy_swap),

drivers/platform/x86/intel-hid.c

@@ -91,6 +91,8 @@ static int intel_hid_pl_resume_handler(struct device *device)
 }
 
 static const struct dev_pm_ops intel_hid_pl_pm_ops = {
+	.freeze  = intel_hid_pl_suspend_handler,
+	.restore  = intel_hid_pl_resume_handler,
 	.suspend  = intel_hid_pl_suspend_handler,
 	.resume  = intel_hid_pl_resume_handler,
 };

drivers/platform/x86/intel_pmc_ipc.c

@@ -687,8 +687,8 @@ static int ipc_plat_get_res(struct platform_device *pdev)
 	ipcdev.acpi_io_size = size;
 	dev_info(&pdev->dev, "io res: %pR\n", res);
 
-	/* This is index 0 to cover BIOS data register */
 	punit_res = punit_res_array;
+	/* This is index 0 to cover BIOS data register */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_BIOS_DATA_INDEX);
 	if (!res) {
@@ -698,55 +698,51 @@ static int ipc_plat_get_res(struct platform_device *pdev)
 	*punit_res = *res;
 	dev_info(&pdev->dev, "punit BIOS data res: %pR\n", res);
 
+	/* This is index 1 to cover BIOS interface register */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_BIOS_IFACE_INDEX);
 	if (!res) {
 		dev_err(&pdev->dev, "Failed to get res of punit BIOS iface\n");
 		return -ENXIO;
 	}
-	/* This is index 1 to cover BIOS interface register */
 	*++punit_res = *res;
 	dev_info(&pdev->dev, "punit BIOS interface res: %pR\n", res);
 
+	/* This is index 2 to cover ISP data register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_ISP_DATA_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit ISP data\n");
-		return -ENXIO;
-	}
-	/* This is index 2 to cover ISP data register */
-	*++punit_res = *res;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
 		dev_info(&pdev->dev, "punit ISP data res: %pR\n", res);
+	}
 
+	/* This is index 3 to cover ISP interface register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_ISP_IFACE_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit ISP iface\n");
-		return -ENXIO;
-	}
-	/* This is index 3 to cover ISP interface register */
-	*++punit_res = *res;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
 		dev_info(&pdev->dev, "punit ISP interface res: %pR\n", res);
+	}
 
+	/* This is index 4 to cover GTD data register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_GTD_DATA_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit GTD data\n");
-		return -ENXIO;
-	}
-	/* This is index 4 to cover GTD data register */
-	*++punit_res = *res;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
 		dev_info(&pdev->dev, "punit GTD data res: %pR\n", res);
+	}
 
+	/* This is index 5 to cover GTD interface register, optional */
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_GTD_IFACE_INDEX);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get res of punit GTD iface\n");
-		return -ENXIO;
-	}
-	/* This is index 5 to cover GTD interface register */
-	*++punit_res = *res;
+	++punit_res;
+	if (res) {
+		*punit_res = *res;
 		dev_info(&pdev->dev, "punit GTD interface res: %pR\n", res);
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM,
 				    PLAT_RESOURCE_IPC_INDEX);

drivers/platform/x86/intel_punit_ipc.c

@@ -227,6 +227,11 @@ static int intel_punit_get_bars(struct platform_device *pdev)
 	struct resource *res;
 	void __iomem *addr;
 
+	/*
+	 * The following resources are required
+	 * - BIOS_IPC BASE_DATA
+	 * - BIOS_IPC BASE_IFACE
+	 */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	addr = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(addr))
@@ -239,29 +244,40 @@ static int intel_punit_get_bars(struct platform_device *pdev)
 		return PTR_ERR(addr);
 	punit_ipcdev->base[BIOS_IPC][BASE_IFACE] = addr;
 
+	/*
+	 * The following resources are optional
+	 * - ISPDRIVER_IPC BASE_DATA
+	 * - ISPDRIVER_IPC BASE_IFACE
+	 * - GTDRIVER_IPC BASE_DATA
+	 * - GTDRIVER_IPC BASE_IFACE
+	 */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+	if (res) {
 		addr = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(addr))
-		return PTR_ERR(addr);
+		if (!IS_ERR(addr))
 			punit_ipcdev->base[ISPDRIVER_IPC][BASE_DATA] = addr;
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 3);
+	if (res) {
 		addr = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(addr))
-		return PTR_ERR(addr);
+		if (!IS_ERR(addr))
 			punit_ipcdev->base[ISPDRIVER_IPC][BASE_IFACE] = addr;
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 4);
+	if (res) {
 		addr = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(addr))
-		return PTR_ERR(addr);
+		if (!IS_ERR(addr))
 			punit_ipcdev->base[GTDRIVER_IPC][BASE_DATA] = addr;
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 5);
+	if (res) {
 		addr = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(addr))
-		return PTR_ERR(addr);
+		if (!IS_ERR(addr))
 			punit_ipcdev->base[GTDRIVER_IPC][BASE_IFACE] = addr;
+	}
 
 	return 0;
 }

drivers/platform/x86/intel_telemetry_pltdrv.c

@@ -659,7 +659,7 @@ static int telemetry_plt_update_events(struct telemetry_evtconfig pss_evtconfig,
 static int telemetry_plt_set_sampling_period(u8 pss_period, u8 ioss_period)
 {
 	u32 telem_ctrl = 0;
-	int ret;
+	int ret = 0;
 
 	mutex_lock(&(telm_conf->telem_lock));
 	if (ioss_period) {

drivers/platform/x86/thinkpad_acpi.c

@@ -7972,10 +7972,12 @@ static int fan_get_status_safe(u8 *status)
 		fan_update_desired_level(s);
 	mutex_unlock(&fan_mutex);
 
+	if (rc)
+		return rc;
 	if (status)
 		*status = s;
 
-	return rc;
+	return 0;
 }
 
 static int fan_get_speed(unsigned int *speed)