pinctrl: rockchip: Split the common set_mux() into per Soc

Such as rk3288's pins of pmu_gpio0 are a special feature, which have no
higher 16 writing corresponding bits, use common set_mux() func would
introduce more code, so implement their set_mux() in each Soc's own
file to reduce the size of code.

Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3128.c b/drivers/pinctrl/rockchip/pinctrl-rk3128.c
index 43a6c173a0..de203334c7 100644
--- a/drivers/pinctrl/rockchip/pinctrl-rk3128.c
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3128.c
@@ -98,6 +98,42 @@ static struct rockchip_mux_route_data rk3128_mux_route_data[] = {
 	},
 };
 
+static int rk3128_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
+{
+	struct rockchip_pinctrl_priv *priv = bank->priv;
+	int iomux_num = (pin / 8);
+	struct regmap *regmap;
+	int reg, ret, mask, mux_type;
+	u8 bit;
+	u32 data, route_reg, route_val;
+
+	regmap = (bank->iomux[iomux_num].type & IOMUX_SOURCE_PMU)
+				? priv->regmap_pmu : priv->regmap_base;
+
+	/* get basic quadrupel of mux registers and the correct reg inside */
+	mux_type = bank->iomux[iomux_num].type;
+	reg = bank->iomux[iomux_num].offset;
+	reg += rockchip_get_mux_data(mux_type, pin, &bit, &mask);
+
+	if (bank->recalced_mask & BIT(pin))
+		rockchip_get_recalced_mux(bank, pin, &reg, &bit, &mask);
+
+	if (bank->route_mask & BIT(pin)) {
+		if (rockchip_get_mux_route(bank, pin, mux, &route_reg,
+					   &route_val)) {
+			ret = regmap_write(regmap, route_reg, route_val);
+			if (ret)
+				return ret;
+		}
+	}
+
+	data = (mask << (bit + 16));
+	data |= (mux & mask) << bit;
+	ret = regmap_write(regmap, reg, data);
+
+	return ret;
+}
+
 #define RK3128_PULL_OFFSET		0x118
 #define RK3128_PULL_PINS_PER_REG	16
 #define RK3128_PULL_BANK_STRIDE		8
@@ -133,6 +169,7 @@ static struct rockchip_pin_ctrl rk3128_pin_ctrl = {
 	.niomux_recalced	= ARRAY_SIZE(rk3128_mux_recalced_data),
 	.iomux_routes		= rk3128_mux_route_data,
 	.niomux_routes		= ARRAY_SIZE(rk3128_mux_route_data),
+	.set_mux		= rk3128_set_mux,
 	.pull_calc_reg		= rk3128_calc_pull_reg_and_bit,
 };