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pinctrl: rockchip: Add a pin_to_bank() helper

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Add a pin_to_bank() helper that can locate a pin bank based on the pin
offset, to be used in get_gpio_mux() and gpio_request_enable() ops.

Reset ctrl->nr_pins to 0 so that pin_to_bank() can locate a bank after
the second probe in U-Boot proper.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
This commit is contained in:
Jonas Karlman
2024-08-02 22:56:44 +00:00
committed by Ondrej Jirman
parent f308fc9ab0
commit f1515d498e
1 changed files with 18 additions and 0 deletions
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18
drivers/pinctrl/rockchip/pinctrl-rockchip-core.c
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@@ -176,6 +176,23 @@ static int rockchip_get_mux(struct rockchip_pin_bank *bank, int pin)
return ((val >> bit) & mask);
}
static struct rockchip_pin_bank *rockchip_pin_to_bank(struct udevice *dev,
unsigned int pin)
{
struct rockchip_pinctrl_priv *priv = dev_get_priv(dev);
struct rockchip_pin_ctrl *ctrl = priv->ctrl;
struct rockchip_pin_bank *bank = ctrl->pin_banks;
int i;
for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
if (pin >= bank->pin_base &&
pin < bank->pin_base + bank->nr_pins)
return bank;
}
return NULL;
}
static int rockchip_pinctrl_get_gpio_mux(struct udevice *dev, int banknum,
int index)
{ struct rockchip_pinctrl_priv *priv = dev_get_priv(dev);
@@ -539,6 +556,7 @@ static struct rockchip_pin_ctrl *rockchip_pinctrl_get_soc_data(struct udevice *d
drv_pmu_offs = ctrl->pmu_drv_offset;
drv_grf_offs = ctrl->grf_drv_offset;
bank = ctrl->pin_banks;
ctrl->nr_pins = 0;
for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
int bank_pins = 0;