[PATCH] pinctrl: gpio: sx150x: fix compilation warnings.

[chalianis1]

From: Chali Anis <chalian...@gmail.com>

Fixes: 5451504256d3 ("pinctrl: gpio: sx150x: add Semtech SX150x I2C GPIO 
expander and pinctrl driver")

Signed-off-by: Chali Anis <chalian...@gmail.com>
---
 drivers/pinctrl/pinctrl-sx150x.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-sx150x.c b/drivers/pinctrl/pinctrl-sx150x.c
index 324d7af8fcd0..cddde8822edb 100644
--- a/drivers/pinctrl/pinctrl-sx150x.c
+++ b/drivers/pinctrl/pinctrl-sx150x.c
@@ -7,7 +7,6 @@
  * <gb...@codeaurora.org>
  */
 
-#include <asm/gpio.h>
 #include <dm.h>
 #include <dm/device-internal.h>
 #include <dm/device.h>
@@ -22,6 +21,8 @@
 #include <log.h>
 #include <power/regulator.h>
 #include <regmap.h>
+#include <linux/bug.h>
+#include <asm/gpio.h>
 
 #define err(format, arg...) printf("ERR:" format "\n", ##arg)
 #define dbg(format, arg...) printf("DBG:" format "\n", ##arg)
@@ -413,7 +414,7 @@ static int sx150x_reg_read(struct sx150x_pinctrl_priv 
*pctl, unsigned int reg,
 {
        int ret, n;
        const int width = sx150x_reg_width(pctl, reg);
-       unsigned int idx, val;
+       unsigned int val, idx;
 
        /*
         * There are four potential cases covered by this function:
@@ -444,8 +445,9 @@ static int sx150x_reg_read(struct sx150x_pinctrl_priv 
*pctl, unsigned int reg,
         *              reg  3 [ 3 3 2 2 1 1 0 0 ]
         */
 
-       for (n = width, val = 0, idx = reg; n > 0; n -= 8, idx) {
+       for (n = width, val = 0; n > 0; n -= 8) {
                val <<= 8;
+               idx = reg;
 
                ret = dm_i2c_reg_read(pctl->i2c, idx);
                if (ret < 0)
@@ -475,7 +477,6 @@ static int sx150x_reg_write(struct sx150x_pinctrl_priv 
*pctl, unsigned int reg,
                if (ret < 0)
                        return ret;
 
-               reg;
                n -= 8;
        } while (n >= 0);
 
@@ -724,7 +725,7 @@ static const struct udevice_id sx150x_pinctrl_of_match[] = {
        {},
 };
 
-static const struct pinconf_param sx150x_conf_params[] = {
+static const struct pinconf_param __maybe_unused sx150x_conf_params[] = {
        { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
        { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 },
        { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 },
@@ -750,7 +751,7 @@ static const char *sx150x_pinctrl_get_pin_name(struct 
udevice *dev,
        return pin_name;
 }
 
-static int sx150x_pinctrl_conf_set(struct udevice *dev, unsigned int pin,
+static int __maybe_unused sx150x_pinctrl_conf_set(struct udevice *dev, 
unsigned int pin,
                                   unsigned int param, unsigned int arg)
 {
        int ret;
@@ -834,13 +835,11 @@ static int sx150x_pinctrl_conf_set(struct udevice *dev, 
unsigned int pin,
 static int sx150x_pinctrl_bind(struct udevice *dev)
 {
        struct sx150x_pinctrl_priv *pctl = dev_get_plat(dev);
-       int ret, reg;
+       int ret;
 
        if (!dev_read_bool(dev, "gpio-controller"))
                return 0;
 
-       reg = (int)dev_read_addr_ptr(dev);
-
        ret = device_bind(dev, &sx150x_gpio_driver, dev_read_name(dev), NULL,
                          dev_ofnode(dev), &pctl->gpio);
        if (ret)
@@ -861,7 +860,10 @@ static int sx150x_pinctrl_probe(struct udevice *dev)
 
        pctl->data = drv_data;
 
-       reg = (int)dev_read_addr_ptr(dev);
+       reg = dev_read_u32_default(dev, "reg", -ENODEV);
+       if (reg < 0)
+               return -ENODEV;
+
        ret = dm_i2c_probe(dev->parent, reg, 0, &pctl->i2c);
        if (ret) {
                err("Cannot find I2C chip %02x (%d)", reg, ret);
-- 
2.34.1