From 61d1a82e00491a5d7ee28895aacfca26972d2b32 Mon Sep 17 00:00:00 2001
From: zhuwg1 <zhuwg1@motorola.com>
Date: Fri, 21 Jan 2022 17:00:44 +0800
Subject: [PATCH] Use of_ API to parse gpio pin number

TP:
Use of_ API to parse gpio pin number.

Change-Id: I82fb037012135c430c0de5610638f99bfa58b844
Signed-off-by: zhuwg1 <zhuwg1@motorola.com>
Reviewed-on: https://gerrit.mot.com/2176491
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: litong <litong20@motorola.com>
Reviewed-by: Jianqi Yang <yangj@motorola.com>
Submit-Approved: Jira Key
---
 .../parade_tma5xx_mmi/cyttsp5_devtree.c       | 20 +++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/input/touchscreen/parade_tma5xx_mmi/cyttsp5_devtree.c b/drivers/input/touchscreen/parade_tma5xx_mmi/cyttsp5_devtree.c
index b1bb1381e0c7..279e62ef584f 100644
--- a/drivers/input/touchscreen/parade_tma5xx_mmi/cyttsp5_devtree.c
+++ b/drivers/input/touchscreen/parade_tma5xx_mmi/cyttsp5_devtree.c
@@ -30,6 +30,7 @@
 #include <linux/err.h>
 #include <linux/of_device.h>
 #include <linux/slab.h>
+#include <linux/of_gpio.h>
 
 /* cyttsp */
 #include "cyttsp5_regs.h"
@@ -554,10 +555,13 @@ static struct cyttsp5_core_platform_data *create_and_get_core_pdata(
 	}
 
 	/* Required fields */
-	rc = of_property_read_u32(core_node, "cy,irq_gpio", &value);
-	if (rc)
+	rc = of_get_named_gpio(core_node, "cy,irq_gpio", 0);
+	if (!gpio_is_valid(rc)) {
+		pdata->irq_gpio = -EINVAL;
+		pr_err("%s, invalid irq-gpio in dt: %d", __func__, rc);
 		goto fail_free;
-	pdata->irq_gpio = value;
+	}
+	pdata->irq_gpio = rc;
 
 	rc = of_property_read_u32(core_node, "cy,hid_desc_register", &value);
 	if (rc)
@@ -568,9 +572,13 @@ static struct cyttsp5_core_platform_data *create_and_get_core_pdata(
 	/* rst_gpio is optional since a platform may use
 	 * power cycling instead of using the XRES pin
 	 */
-	rc = of_property_read_u32(core_node, "cy,rst_gpio", &value);
-	if (!rc)
-		pdata->rst_gpio = value;
+	rc = of_get_named_gpio(core_node, "cy,rst_gpio", 0);
+	if (!gpio_is_valid(rc)) {
+		pdata->rst_gpio = -EINVAL;
+		pr_err("%s, invalid rst-gpio in dt: %d", __func__, rc);
+		goto fail_free;
+	}
+	pdata->rst_gpio = rc;
 
 	rc = of_property_read_u32(core_node, "cy,level_irq_udelay", &value);
 	if (!rc)