[PATCH 1/8] realtek: separate lock of RTL8231 from phy driver

[Sander Vanheule]

From: INAGAKI Hiroshi <musashino.open at gmail.com>

RTL8231 and ethernet phys are not on the same bus, so separate the lock
to each own to cut off the unnecessary dependency.

Signed-off-by: INAGAKI Hiroshi <musashino.open at gmail.com>
---
 .../files-5.10/drivers/gpio/gpio-rtl8231.c    | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/target/linux/realtek/files-5.10/drivers/gpio/gpio-rtl8231.c b/target/linux/realtek/files-5.10/drivers/gpio/gpio-rtl8231.c
index 7a1d6aa136ad..368c4fa60fb9 100644
--- a/target/linux/realtek/files-5.10/drivers/gpio/gpio-rtl8231.c
+++ b/target/linux/realtek/files-5.10/drivers/gpio/gpio-rtl8231.c
@@ -29,9 +29,10 @@ struct rtl8231_gpios {
 	int ext_gpio_indrt_access;
 };
 
-extern struct mutex smi_lock;
 extern struct rtl83xx_soc_info soc_info;
 
+DEFINE_MUTEX(miim_lock);
+
 static u32 rtl8231_read(struct rtl8231_gpios *gpios, u32 reg)
 {
 	u32 t = 0, n = 0;
@@ -187,9 +188,9 @@ static int rtl8231_direction_input(struct gpio_chip *gc, unsigned int offset)
 	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
 
 	pr_debug("%s: %d\n", __func__, offset);
-	mutex_lock(&smi_lock);
+	mutex_lock(&miim_lock);
 	err = rtl8231_pin_dir(gpios, offset, 1);
-	mutex_unlock(&smi_lock);
+	mutex_unlock(&miim_lock);
 	return err;
 }
 
@@ -199,9 +200,9 @@ static int rtl8231_direction_output(struct gpio_chip *gc, unsigned int offset, i
 	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
 
 	pr_debug("%s: %d\n", __func__, offset);
-	mutex_lock(&smi_lock);
+	mutex_lock(&miim_lock);
 	err = rtl8231_pin_dir(gpios, offset, 0);
-	mutex_unlock(&smi_lock);
+	mutex_unlock(&miim_lock);
 	if (!err)
 		err = rtl8231_pin_set(gpios, offset, value);
 	return err;
@@ -213,9 +214,9 @@ static int rtl8231_get_direction(struct gpio_chip *gc, unsigned int offset)
 	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
 
 	pr_debug("%s: %d\n", __func__, offset);
-	mutex_lock(&smi_lock);
+	mutex_lock(&miim_lock);
 	rtl8231_pin_dir_get(gpios, offset, &v);
-	mutex_unlock(&smi_lock);
+	mutex_unlock(&miim_lock);
 	return v;
 }
 
@@ -224,9 +225,9 @@ static int rtl8231_gpio_get(struct gpio_chip *gc, unsigned int offset)
 	u16 state = 0;
 	struct rtl8231_gpios *gpios = gpiochip_get_data(gc);
 
-	mutex_lock(&smi_lock);
+	mutex_lock(&miim_lock);
 	rtl8231_pin_get(gpios, offset, &state);
-	mutex_unlock(&smi_lock);
+	mutex_unlock(&miim_lock);
 	if (state & (1 << (offset % 16)))
 		return 1;
 	return 0;
-- 
2.37.3