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Commit 843a5f3b authored by Fei Mao's avatar Fei Mao Committed by Gerrit - the friendly Code Review server
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input: misc: hbtp_input: add touch enable GPIO 



Add touch enable GPIO for hbtp driver, so we can disable the
touch when no panel is plugged in.

Change-Id: I3e50cdacb41b934481d921feb155c61173b02929
Signed-off-by: default avatarFei Mao <feim1@codeaurora.org>
parent 9e5706f2

drivers/input/misc/hbtp_input.c

+24 −3
Original line number Diff line number Diff line 


/* Copyright (c) 2014-2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2014-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -856,7 +856,7 @@ static const struct file_operations hbtp_input_fops = { 
#ifdef CONFIG_OF

static int hbtp_parse_dt(struct device *dev)

{

	int rc, size;

	int rc, size, en_gpio;

	struct device_node *np = dev->of_node;

	struct property *prop;

	u32 temp_val;
@@ -1019,6 +1019,23 @@ static int hbtp_parse_dt(struct device *dev) 


	}



	/*

	 * "qcom,platform-en-gpio" is optinal.

	 * But if it is defined in dtsi, should check the GPIO value

	 * to continue the probe function or not.

	 */

	en_gpio = of_get_named_gpio(np, "qcom,platform-en-gpio", 0);

	if (gpio_is_valid(en_gpio)) {

		rc = gpio_request(en_gpio, "qcom,platform-en-gpio");

		if (!rc) {

			rc = gpio_direction_input(en_gpio);

			if (!rc && gpio_get_value(en_gpio)) {

				gpio_free(en_gpio);

				return -EINVAL;

			}

			gpio_free(en_gpio);

		}

	}

	return 0;

}

#else
@@ -1319,7 +1336,11 @@ static int hbtp_pdev_probe(struct platform_device *pdev) 
	if (pdev->dev.of_node) {

		error = hbtp_parse_dt(&pdev->dev);

		if (error) {

			pr_err("%s: parse dt failed, rc=%d\n", __func__, error);

			pr_debug("%s: parse dt failed, rc=%d\n", __func__,

					error);

			sysfs_remove_bin_file(sensor_kobject, &vibdata_attr);

			sysfs_remove_bin_file(sensor_kobject, &capdata_attr);

			kobject_put(sensor_kobject);

			return error;

		}

	}