On 2022/4/4 22:19, Johan Jonker wrote:
From: Paweł Jarosz paweljarosz3691@gmail.com
Add driver supporting pin multiplexing on rk3066 platform.
Signed-off-by: Paweł Jarosz paweljarosz3691@gmail.com Signed-off-by: Johan Jonker jbx6244@gmail.com
Reviewed-by: Kever Yang kever.yang@rock-chips.com
Thanks, - Kever
Changed V9: change regmap source
Changed V7: restyle changed function prefix. restyle U_BOOT_DRIVER structure use OF_REAL use EOPNOTSUPP
drivers/pinctrl/rockchip/Makefile | 1 + drivers/pinctrl/rockchip/pinctrl-rk3066.c | 112 ++++++++++++++++++++++ 2 files changed, 113 insertions(+) create mode 100644 drivers/pinctrl/rockchip/pinctrl-rk3066.c
diff --git a/drivers/pinctrl/rockchip/Makefile b/drivers/pinctrl/rockchip/Makefile index fcf19f877a..7d03f8101d 100644 --- a/drivers/pinctrl/rockchip/Makefile +++ b/drivers/pinctrl/rockchip/Makefile @@ -5,6 +5,7 @@ obj-y += pinctrl-rockchip-core.o obj-$(CONFIG_ROCKCHIP_PX30) += pinctrl-px30.o obj-$(CONFIG_ROCKCHIP_RK3036) += pinctrl-rk3036.o +obj-$(CONFIG_ROCKCHIP_RK3066) += pinctrl-rk3066.o obj-$(CONFIG_ROCKCHIP_RK3128) += pinctrl-rk3128.o obj-$(CONFIG_ROCKCHIP_RK3188) += pinctrl-rk3188.o obj-$(CONFIG_ROCKCHIP_RK322X) += pinctrl-rk322x.o diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3066.c b/drivers/pinctrl/rockchip/pinctrl-rk3066.c new file mode 100644 index 0000000000..598b63223e --- /dev/null +++ b/drivers/pinctrl/rockchip/pinctrl-rk3066.c @@ -0,0 +1,112 @@ +// SPDX-License-Identifier: GPL-2.0+ +/*
- (C) Copyright 2021 Rockchip Electronics Co., Ltd
- */
+#include <common.h> +#include <dm.h> +#include <dm/pinctrl.h> +#include <regmap.h> +#include <syscon.h> +#include <linux/bitops.h>
+#include "pinctrl-rockchip.h"
+static int rk3066_pinctrl_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;
- regmap = 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);
- data = (mask << (bit + 16));
- data |= (mux & mask) << bit;
- ret = regmap_write(regmap, reg, data);
- return ret;
+}
+#define RK3066_PULL_OFFSET 0x118 +#define RK3066_PULL_PINS_PER_REG 16 +#define RK3066_PULL_BANK_STRIDE 8
+static void rk3066_pinctrl_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
int pin_num, struct regmap **regmap,int *reg, u8 *bit)+{
- struct rockchip_pinctrl_priv *priv = bank->priv;
- *regmap = priv->regmap_base;
- *reg = RK3066_PULL_OFFSET;
- *reg += bank->bank_num * RK3066_PULL_BANK_STRIDE;
- *reg += (pin_num / RK3066_PULL_PINS_PER_REG) * 4;
- *bit = pin_num % RK3066_PULL_PINS_PER_REG;
+};
+static int rk3066_pinctrl_set_pull(struct rockchip_pin_bank *bank,
int pin_num, int pull)+{
- struct regmap *regmap;
- int reg, ret;
- u8 bit;
- u32 data;
- if (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT &&
pull != PIN_CONFIG_BIAS_DISABLE)return -EOPNOTSUPP;- rk3066_pinctrl_calc_pull_reg_and_bit(bank, pin_num, ®map, ®, &bit);
- data = BIT(bit + 16);
- if (pull == PIN_CONFIG_BIAS_DISABLE)
data |= BIT(bit);- ret = regmap_write(regmap, reg, data);
- return ret;
+}
+static struct rockchip_pin_bank rk3066_pin_banks[] = {
- PIN_BANK(0, 32, "gpio0"),
- PIN_BANK(1, 32, "gpio1"),
- PIN_BANK(2, 32, "gpio2"),
- PIN_BANK(3, 32, "gpio3"),
- PIN_BANK(4, 32, "gpio4"),
- PIN_BANK(6, 16, "gpio6"),
+};
+static struct rockchip_pin_ctrl rk3066_pin_ctrl = {
- .pin_banks = rk3066_pin_banks,
- .nr_banks = ARRAY_SIZE(rk3066_pin_banks),
- .grf_mux_offset = 0xa8,
- .set_mux = rk3066_pinctrl_set_mux,
- .set_pull = rk3066_pinctrl_set_pull,
+};
+static const struct udevice_id rk3066_pinctrl_ids[] = {
- {
.compatible = "rockchip,rk3066a-pinctrl",.data = (ulong)&rk3066_pin_ctrl- },
- {}
+};
+U_BOOT_DRIVER(rockchip_rk3066a_pinctrl) = {
- .name = "rockchip_rk3066a_pinctrl",
- .id = UCLASS_PINCTRL,
- .ops = &rockchip_pinctrl_ops,
- .probe = rockchip_pinctrl_probe,
+#if CONFIG_IS_ENABLED(OF_REAL)
- .bind = dm_scan_fdt_dev,
+#endif
- .of_match = rk3066_pinctrl_ids,
- .priv_auto = sizeof(struct rockchip_pinctrl_priv),
+};