Merge "input: misc: hbtp_input: Add sysfs for suspend/resume" (b20f6a99) · Commits · e / devices / android_kernel_fairphone_FP3

drivers/input/misc/hbtp_input.c

+44 −0

Original line number	Diff line number	Diff line
		@@ -87,6 +87,7 @@ struct hbtp_data {
		u32 power_on_delay;
		u32 power_off_delay;
		bool manage_pin_ctrl;
		struct kobject *sysfs_kobject;
		};

		static struct hbtp_data *hbtp;
		@@ -1350,6 +1351,39 @@ static struct platform_driver hbtp_pdev_driver = {
		},
		};

		static ssize_t hbtp_display_pwr_store(struct kobject *kobj,
		struct kobj_attribute attr, const char buf, size_t count)
		{
		u32 status;
		ssize_t ret;
		char *envp[2] = {HBTP_EVENT_TYPE_DISPLAY, NULL};

		mutex_lock(&hbtp->mutex);
		ret = kstrtou32(buf, 10, &status);
		if (ret) {
		pr_err("hbtp: ret error: %zd\n", ret);
		return ret;
		}
		if (!hbtp \|\| !hbtp->input_dev) {
		pr_err("hbtp: hbtp or hbtp->input_dev not ready!\n");
		return ret;
		}
		if (status) {
		pr_debug("hbtp: display power on!\n");
		kobject_uevent_env(&hbtp->input_dev->dev.kobj,
		KOBJ_ONLINE, envp);
		} else {
		pr_debug("hbtp: display power off!\n");
		kobject_uevent_env(&hbtp->input_dev->dev.kobj,
		KOBJ_OFFLINE, envp);
		}
		mutex_unlock(&hbtp->mutex);
		return count;
		}

		static struct kobj_attribute hbtp_display_attribute =
		__ATTR(display_pwr, 0660, NULL, hbtp_display_pwr_store);

		static int __init hbtp_init(void)
		{
		int error;
		@@ -1382,6 +1416,16 @@ static int __init hbtp_init(void)
		goto err_platform_drv_reg;
		}

		hbtp->sysfs_kobject = kobject_create_and_add("hbtp", kernel_kobj);
		if (!hbtp->sysfs_kobject)
		pr_err("%s: Could not create sysfs kobject\n", __func__);
		else {
		error = sysfs_create_file(hbtp->sysfs_kobject,
		&hbtp_display_attribute.attr);
		if (error)
		pr_err("failed to create the display_pwr sysfs\n");
		}

		return 0;

		err_platform_drv_reg: