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sunxi: gpio: Add per-bank drive and pull setters

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The GPIO and pinctrl drivers need these setters for pin configuration.
Since they are DM drivers, they should not be using hardcoded base
addresses. Factor out variants of the setter functions which take a
pointer to the GPIO bank's MMIO registers.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
This commit is contained in:
Samuel Holland 2021-10-20 23:52:55 -05:00 committed by Andre Przywara
parent ac5397a219
commit efdd656659
2 changed files with 18 additions and 4 deletions
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2
arch/arm/include/asm/arch-sunxi/gpio.h
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@ -227,7 +227,9 @@ void sunxi_gpio_set_cfgpin(u32 pin, u32 val);
int sunxi_gpio_get_cfgbank(struct sunxi_gpio *pio, int bank_offset);
int sunxi_gpio_get_cfgpin(u32 pin);
void sunxi_gpio_set_drv(u32 pin, u32 val);
void sunxi_gpio_set_drv_bank(struct sunxi_gpio *pio, u32 bank_offset, u32 val);
void sunxi_gpio_set_pull(u32 pin, u32 val);
void sunxi_gpio_set_pull_bank(struct sunxi_gpio *pio, int bank_offset, u32 val);
int sunxi_name_to_gpio(const char *name);
#if !defined CONFIG_SPL_BUILD && defined CONFIG_AXP_GPIO

20
arch/arm/mach-sunxi/pinmux.c
View File

@ -48,19 +48,31 @@ int sunxi_gpio_get_cfgpin(u32 pin)
void sunxi_gpio_set_drv(u32 pin, u32 val)
{
u32 bank = GPIO_BANK(pin);
u32 index = GPIO_DRV_INDEX(pin);
u32 offset = GPIO_DRV_OFFSET(pin);
struct sunxi_gpio *pio = BANK_TO_GPIO(bank);
sunxi_gpio_set_drv_bank(pio, pin, val);
}
void sunxi_gpio_set_drv_bank(struct sunxi_gpio *pio, u32 bank_offset, u32 val)
{
u32 index = GPIO_DRV_INDEX(bank_offset);
u32 offset = GPIO_DRV_OFFSET(bank_offset);
clrsetbits_le32(&pio->drv[0] + index, 0x3 << offset, val << offset);
}
void sunxi_gpio_set_pull(u32 pin, u32 val)
{
u32 bank = GPIO_BANK(pin);
u32 index = GPIO_PULL_INDEX(pin);
u32 offset = GPIO_PULL_OFFSET(pin);
struct sunxi_gpio *pio = BANK_TO_GPIO(bank);
sunxi_gpio_set_pull_bank(pio, pin, val);
}
void sunxi_gpio_set_pull_bank(struct sunxi_gpio *pio, int bank_offset, u32 val)
{
u32 index = GPIO_PULL_INDEX(bank_offset);
u32 offset = GPIO_PULL_OFFSET(bank_offset);
clrsetbits_le32(&pio->pull[0] + index, 0x3 << offset, val << offset);
}