sony-laptop: add panel_id function (9e04c908) · Commits · 戴 / test

drivers/platform/x86/sony-laptop.c

+59 −0

Original line number	Diff line number	Diff line
		@@ -164,6 +164,9 @@ static int __sony_nc_gfx_switch_status_get(void);
		static int sony_nc_highspeed_charging_setup(struct platform_device *pd);
		static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd);

		static int sony_nc_panelid_setup(struct platform_device *pd);
		static void sony_nc_panelid_cleanup(struct platform_device *pd);

		static int sony_nc_touchpad_setup(struct platform_device *pd,
		unsigned int handle);
		static void sony_nc_touchpad_cleanup(struct platform_device *pd);
		@@ -1385,6 +1388,12 @@ static void sony_nc_function_setup(struct acpi_device *device,
		pr_err("couldn't set up keyboard backlight function (%d)\n",
		result);
		break;
		case 0x011D:
		result = sony_nc_panelid_setup(pf_device);
		if (result)
		pr_err("couldn't set up panel ID function (%d)\n",
		result);
		break;
		default:
		continue;
		}
		@@ -1449,6 +1458,9 @@ static void sony_nc_function_cleanup(struct platform_device *pd)
		case 0x0163:
		sony_nc_kbd_backlight_cleanup(pd, handle);
		break;
		case 0x011D:
		sony_nc_panelid_cleanup(pd);
		break;
		default:
		continue;
		}
		@@ -2540,6 +2552,53 @@ static void sony_nc_highspeed_charging_cleanup(struct platform_device *pd)
		}
		}

		/* Panel ID function */
		static struct device_attribute *panel_handle;

		static ssize_t sony_nc_panelid_show(struct device *dev,
		struct device_attribute attr, char buffer)
		{
		unsigned int result;

		if (sony_call_snc_handle(0x011D, 0x0000, &result))
		return -EIO;

		return snprintf(buffer, PAGE_SIZE, "%d\n", result);
		}

		static int sony_nc_panelid_setup(struct platform_device *pd)
		{
		unsigned int result;

		panel_handle = kzalloc(sizeof(struct device_attribute), GFP_KERNEL);
		if (!panel_handle)
		return -ENOMEM;

		sysfs_attr_init(&panel_handle->attr);
		panel_handle->attr.name = "panel_id";
		panel_handle->attr.mode = S_IRUGO;
		panel_handle->show = sony_nc_panelid_show;
		panel_handle->store = NULL;

		result = device_create_file(&pd->dev, panel_handle);
		if (result) {
		kfree(panel_handle);
		panel_handle = NULL;
		return result;
		}

		return 0;
		}

		static void sony_nc_panelid_cleanup(struct platform_device *pd)
		{
		if (panel_handle) {
		device_remove_file(&pd->dev, panel_handle);
		kfree(panel_handle);
		panel_handle = NULL;
		}
		}

		/* Touchpad enable/disable */
		struct touchpad_control {
		struct device_attribute attr;

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