pinctrl: qcom: spmi-gpio: Fix the GPIO strength mapping

The SPMI based PMICs have the HIGH and LOW GPIO output
strength mappings interchanged, fix them.

Keep the mapping same for older SSBI based PMICs.

CRs-Fixed: 2246473
Change-Id: I4ec78469c436b54642ee67108943c82fba46e1c4
Signed-off-by: Anirudh Ghayal <aghayal@codeaurora.org>

drivers/pinctrl/qcom/pinctrl-spmi-gpio.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2014, 2016-2017 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2014, 2016-2018 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
@@ -516,7 +516,7 @@ static int pmic_gpio_config_set(struct pinctrl_dev *pctldev, unsigned int pin,
 			pad->pullup = arg;
 			break;
 		case PMIC_GPIO_CONF_STRENGTH:
-			if (arg > PMIC_GPIO_STRENGTH_LOW)
+			if (arg > PMIC_GPIO_STRENGTH_HIGH)
 				return -EINVAL;
 			pad->strength = arg;
 			break;

drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2015, Sony Mobile Communications AB.
- * Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2013, 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
@@ -365,7 +365,7 @@ static int pm8xxx_pin_config_set(struct pinctrl_dev *pctldev,
 			banks |= BIT(0);
 			break;
 		case PM8XXX_QCOM_DRIVE_STRENGH:
-			if (arg > PMIC_GPIO_STRENGTH_LOW) {
+			if (arg > PM8921_GPIO_STRENGTH_LOW) {
 				dev_err(pctrl->dev, "invalid drive strength\n");
 				return -EINVAL;
 			}

include/dt-bindings/pinctrl/qcom,pmic-gpio.h

@@ -12,9 +12,14 @@
 #define PMIC_GPIO_PULL_UP_1P5_30	3
 
 #define PMIC_GPIO_STRENGTH_NO		0
-#define PMIC_GPIO_STRENGTH_HIGH		1
+#define PMIC_GPIO_STRENGTH_LOW		1
 #define PMIC_GPIO_STRENGTH_MED		2
-#define PMIC_GPIO_STRENGTH_LOW		3
+#define PMIC_GPIO_STRENGTH_HIGH		3
+
+#define PM8921_GPIO_STRENGTH_NO		0
+#define PM8921_GPIO_STRENGTH_HIGH	1
+#define PM8921_GPIO_STRENGTH_MED	2
+#define PM8921_GPIO_STRENGTH_LOW	3
 
 /*
  * Note: PM8018 GPIO3 and GPIO4 are supporting