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 --- v2: New patch split from "pinctrl: rockchip: Add gpio_request_enable() ops" of "rockchip: Add gpio request() ops" series --- .../pinctrl/rockchip/pinctrl-rockchip-core.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c index f6af22501c36..894ff74aee98 100644 --- a/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c +++ b/drivers/pinctrl/rockchip/pinctrl-rockchip-core.c @@ -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;