soc/mediatek: Move some gpio functions to common/gpio_op.c

gpio_set_pull(), gpio_set_pull_pu_pd() and gpio_set_spec_pull_pupd()
can be reused for mt8192, mt8195 and mt8186, so move it to new file
"gpio_op.c" in common folder.

TEST=build pass
BUG=b:233720142

Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Change-Id: I81ab9b01ee20fccf3ef29c5902597b5045d3e36a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65641
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 2 insertions, 60 deletions

diff --git a/src/soc/mediatek/mt8186/Makefile.inc b/src/soc/mediatek/mt8186/Makefile.inc
index fa353ae2dc..8b0e52a8e9 100644
--- a/src/soc/mediatek/mt8186/Makefile.inc
+++ b/src/soc/mediatek/mt8186/Makefile.inc
@@ -2,7 +2,7 @@ ifeq ($(CONFIG_SOC_MEDIATEK_MT8186),y)
 
 # for bootblock, verstage, romstage, ramstage
 all-y += ../common/flash_controller.c
-all-y += ../common/gpio.c gpio.c
+all-y += ../common/gpio.c ../common/gpio_op.c  gpio.c
 all-y += ../common/i2c.c i2c.c
 all-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
 all-y += ../common/timer.c ../common/timer_prepare.c
diff --git a/src/soc/mediatek/mt8186/gpio.c b/src/soc/mediatek/mt8186/gpio.c
index c96f1ea2ac..59143461a7 100644
--- a/src/soc/mediatek/mt8186/gpio.c
+++ b/src/soc/mediatek/mt8186/gpio.c
@@ -223,7 +223,7 @@ static const struct gpio_drv_info gpio_driving_adv_info[GPIO_NUM] = {
 	[146] = { 0x20, 15, 3, },
 };
 
-static void *gpio_find_reg_addr(gpio_t gpio)
+void *gpio_find_reg_addr(gpio_t gpio)
 {
 	void *reg_addr;
 	switch (gpio.base & 0x0f) {
@@ -253,64 +253,6 @@ static void *gpio_find_reg_addr(gpio_t gpio)
 	return reg_addr;
 }
 
-static void gpio_set_spec_pull_pupd(gpio_t gpio, enum pull_enable enable,
-				    enum pull_select select)
-{
-	void *reg1;
-	void *reg2;
-	int bit = gpio.bit;
-
-	reg1 = gpio_find_reg_addr(gpio) + gpio.offset;
-	reg2 = reg1 + (gpio.base & 0xf0);
-
-	if (enable == GPIO_PULL_ENABLE) {
-		if (select == GPIO_PULL_DOWN)
-			setbits32(reg1, BIT(bit));
-		else
-			clrbits32(reg1, BIT(bit));
-	}
-
-	if (enable == GPIO_PULL_ENABLE) {
-		setbits32(reg2, 1 << bit);
-	} else {
-		clrbits32(reg2, 1 << bit);
-		clrbits32(reg2 + 0x010, BIT(bit));
-	}
-}
-
-static void gpio_set_pull_pu_pd(gpio_t gpio, enum pull_enable enable,
-				enum pull_select select)
-{
-	void *reg1;
-	void *reg2;
-	int bit = gpio.bit;
-
-	reg1 = gpio_find_reg_addr(gpio) + gpio.offset;
-	reg2 = reg1 - (gpio.base & 0xf0);
-
-	if (enable == GPIO_PULL_ENABLE) {
-		if (select == GPIO_PULL_DOWN) {
-			clrbits32(reg1, BIT(bit));
-			setbits32(reg2, BIT(bit));
-		} else {
-			clrbits32(reg2, BIT(bit));
-			setbits32(reg1, BIT(bit));
-		}
-	} else {
-		clrbits32(reg1, BIT(bit));
-		clrbits32(reg2, BIT(bit));
-	}
-}
-
-void gpio_set_pull(gpio_t gpio, enum pull_enable enable,
-		   enum pull_select select)
-{
-	if (gpio.flag)
-		gpio_set_spec_pull_pupd(gpio, enable, select);
-	else
-		gpio_set_pull_pu_pd(gpio, enable, select);
-}
-
 static inline bool is_valid_drv(uint8_t drv)
 {
 	return drv <= GPIO_DRV_16_MA;