Add a driver which supports pin multiplexing setup for the most commonly used peripherals.
Signed-off-by: Heiko Stuebner heiko@sntech.de Acked-by: Simon Glass sjg@chromium.org --- drivers/pinctrl/Kconfig | 9 + drivers/pinctrl/rockchip/Makefile | 1 + drivers/pinctrl/rockchip/pinctrl_rk3188.c | 613 ++++++++++++++++++++++++++++++ 3 files changed, 623 insertions(+) create mode 100644 drivers/pinctrl/rockchip/pinctrl_rk3188.c
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 2972dba..0d8ee19 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -141,6 +141,15 @@ config ROCKCHIP_RK3288_PINCTRL definitions and pin control functions for each available multiplex function.
+config ROCKCHIP_RK3188_PINCTRL + bool "Rockchip pin control driver" + depends on DM + help + Support pin multiplexing control on Rockchip rk3188 SoCs. The driver + is controlled by a device tree node which contains both the GPIO + definitions and pin control functions for each available multiplex + function. + config PINCTRL_SANDBOX bool "Sandbox pinctrl driver" depends on SANDBOX diff --git a/drivers/pinctrl/rockchip/Makefile b/drivers/pinctrl/rockchip/Makefile index 64e9587..7768628 100644 --- a/drivers/pinctrl/rockchip/Makefile +++ b/drivers/pinctrl/rockchip/Makefile @@ -6,4 +6,5 @@ #
obj-$(CONFIG_ROCKCHIP_RK3036_PINCTRL) += pinctrl_rk3036.o +obj-$(CONFIG_ROCKCHIP_RK3188_PINCTRL) += pinctrl_rk3188.o obj-$(CONFIG_ROCKCHIP_RK3288_PINCTRL) += pinctrl_rk3288.o diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3188.c b/drivers/pinctrl/rockchip/pinctrl_rk3188.c new file mode 100644 index 0000000..f98356d --- /dev/null +++ b/drivers/pinctrl/rockchip/pinctrl_rk3188.c @@ -0,0 +1,613 @@ +/* + * Pinctrl driver for Rockchip RK3188 SoCs + * Copyright (c) 2016 Heiko Stuebner heiko@sntech.de + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <syscon.h> +#include <asm/io.h> +#include <asm/arch/clock.h> +#include <asm/arch/grf_rk3188.h> +#include <asm/arch/hardware.h> +#include <asm/arch/periph.h> +#include <asm/arch/pmu_rk3188.h> +#include <dm/pinctrl.h> +#include <dm/root.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct rk3188_pinctrl_priv { + struct rk3188_grf *grf; + struct rk3188_pmu *pmu; + int num_banks; +}; + +/** + * Encode variants of iomux registers into a type variable + */ +#define IOMUX_GPIO_ONLY BIT(0) + +/** + * @type: iomux variant using IOMUX_* constants + * @offset: if initialized to -1 it will be autocalculated, by specifying + * an initial offset value the relevant source offset can be reset + * to a new value for autocalculating the following iomux registers. + */ +struct rockchip_iomux { + u8 type; + s16 offset; +}; + +/** + * @reg: register offset of the gpio bank + * @nr_pins: number of pins in this bank + * @bank_num: number of the bank, to account for holes + * @name: name of the bank + * @iomux: array describing the 4 iomux sources of the bank + */ +struct rockchip_pin_bank { + u16 reg; + u8 nr_pins; + u8 bank_num; + char *name; + struct rockchip_iomux iomux[4]; +}; + +#define PIN_BANK(id, pins, label) \ + { \ + .bank_num = id, \ + .nr_pins = pins, \ + .name = label, \ + .iomux = { \ + { .offset = -1 }, \ + { .offset = -1 }, \ + { .offset = -1 }, \ + { .offset = -1 }, \ + }, \ + } + +#define PIN_BANK_IOMUX_FLAGS(id, pins, label, iom0, iom1, iom2, iom3) \ + { \ + .bank_num = id, \ + .nr_pins = pins, \ + .name = label, \ + .iomux = { \ + { .type = iom0, .offset = -1 }, \ + { .type = iom1, .offset = -1 }, \ + { .type = iom2, .offset = -1 }, \ + { .type = iom3, .offset = -1 }, \ + }, \ + } + +#ifndef CONFIG_SPL_BUILD +static struct rockchip_pin_bank rk3188_pin_banks[] = { + PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0), + PIN_BANK(1, 32, "gpio1"), + PIN_BANK(2, 32, "gpio2"), + PIN_BANK(3, 32, "gpio3"), +}; +#endif + +static void pinctrl_rk3188_pwm_config(struct rk3188_grf *grf, int pwm_id) +{ + switch (pwm_id) { + case PERIPH_ID_PWM0: + rk_clrsetreg(&grf->gpio3d_iomux, GPIO3D3_MASK << GPIO3D3_SHIFT, + GPIO3D3_PWM_0 << GPIO3D3_SHIFT); + break; + case PERIPH_ID_PWM1: + rk_clrsetreg(&grf->gpio3d_iomux, GPIO3D4_MASK << GPIO3D4_SHIFT, + GPIO3D4_PWM_1 << GPIO3D4_SHIFT); + break; + case PERIPH_ID_PWM2: + rk_clrsetreg(&grf->gpio3d_iomux, GPIO3D5_MASK << GPIO3D5_SHIFT, + GPIO3D5_PWM_2 << GPIO3D5_SHIFT); + break; + case PERIPH_ID_PWM3: + rk_clrsetreg(&grf->gpio3d_iomux, GPIO3D6_MASK << GPIO3D6_SHIFT, + GPIO3D6_PWM_3 << GPIO3D6_SHIFT); + break; + default: + debug("pwm id = %d iomux error!\n", pwm_id); + break; + } +} + +static void pinctrl_rk3188_i2c_config(struct rk3188_grf *grf, + struct rk3188_pmu *pmu, int i2c_id) +{ + switch (i2c_id) { + case PERIPH_ID_I2C0: + rk_clrsetreg(&grf->gpio1d_iomux, + GPIO1D1_MASK << GPIO1D1_SHIFT | + GPIO1D0_MASK << GPIO1D0_SHIFT, + GPIO1D1_I2C0_SCL << GPIO1D1_SHIFT | + GPIO1D0_I2C0_SDA << GPIO1D0_SHIFT); + /* enable new i2c controller */ + rk_clrsetreg(&grf->soc_con1, 1 << RKI2C0_SEL_SHIFT, + 1 << RKI2C0_SEL_SHIFT); + break; + case PERIPH_ID_I2C1: + rk_clrsetreg(&grf->gpio1d_iomux, + GPIO1D3_MASK << GPIO1D3_SHIFT | + GPIO1D2_MASK << GPIO1D2_SHIFT, + GPIO1D3_I2C1_SCL << GPIO1D2_SHIFT | + GPIO1D2_I2C1_SDA << GPIO1D2_SHIFT); + rk_clrsetreg(&grf->soc_con1, 1 << RKI2C1_SEL_SHIFT, + 1 << RKI2C1_SEL_SHIFT); + break; + case PERIPH_ID_I2C2: + rk_clrsetreg(&grf->gpio1d_iomux, + GPIO1D5_MASK << GPIO1D5_SHIFT | + GPIO1D4_MASK << GPIO1D4_SHIFT, + GPIO1D5_I2C2_SCL << GPIO1D5_SHIFT | + GPIO1D4_I2C2_SDA << GPIO1D4_SHIFT); + rk_clrsetreg(&grf->soc_con1, 1 << RKI2C2_SEL_SHIFT, + 1 << RKI2C2_SEL_SHIFT); + break; + case PERIPH_ID_I2C3: + rk_clrsetreg(&grf->gpio3b_iomux, + GPIO3B7_MASK << GPIO3B7_SHIFT | + GPIO3B6_MASK << GPIO3B6_SHIFT, + GPIO3B7_I2C3_SCL << GPIO3B7_SHIFT | + GPIO3B6_I2C3_SDA << GPIO3B6_SHIFT); + rk_clrsetreg(&grf->soc_con1, 1 << RKI2C3_SEL_SHIFT, + 1 << RKI2C3_SEL_SHIFT); + break; + case PERIPH_ID_I2C4: + rk_clrsetreg(&grf->gpio1d_iomux, + GPIO1D7_MASK << GPIO1D7_SHIFT | + GPIO1D6_MASK << GPIO1D6_SHIFT, + GPIO1D7_I2C4_SCL << GPIO1D7_SHIFT | + GPIO1D6_I2C4_SDA << GPIO1D6_SHIFT); + rk_clrsetreg(&grf->soc_con1, 1 << RKI2C4_SEL_SHIFT, + 1 << RKI2C4_SEL_SHIFT); + break; + default: + debug("i2c id = %d iomux error!\n", i2c_id); + break; + } +} + +static int pinctrl_rk3188_spi_config(struct rk3188_grf *grf, + enum periph_id spi_id, int cs) +{ + switch (spi_id) { + case PERIPH_ID_SPI0: + switch (cs) { + case 0: + rk_clrsetreg(&grf->gpio1a_iomux, + GPIO1A7_MASK << GPIO1A7_SHIFT, + GPIO1A7_SPI0_CSN0 << GPIO1A7_SHIFT); + break; + case 1: + rk_clrsetreg(&grf->gpio1b_iomux, + GPIO1B7_MASK << GPIO1B7_SHIFT, + GPIO1B7_SPI0_CSN1 << GPIO1B7_SHIFT); + break; + default: + goto err; + } + rk_clrsetreg(&grf->gpio1a_iomux, + GPIO1A4_MASK << GPIO1A4_SHIFT | + GPIO1A5_MASK << GPIO1A5_SHIFT | + GPIO1A6_MASK << GPIO1A6_SHIFT, + GPIO1A4_SPI0_RXD << GPIO1A4_SHIFT | + GPIO1A5_SPI0_TXD << GPIO1A5_SHIFT | + GPIO1A6_SPI0_CLK << GPIO1A6_SHIFT); + break; + case PERIPH_ID_SPI1: + switch (cs) { + case 0: + rk_clrsetreg(&grf->gpio0d_iomux, + GPIO0D7_MASK << GPIO0D7_SHIFT, + GPIO0D7_SPI1_CSN0 << GPIO0D7_SHIFT); + break; + case 1: + rk_clrsetreg(&grf->gpio1b_iomux, + GPIO1B6_MASK << GPIO1B6_SHIFT, + GPIO1B6_SPI1_CSN1 << GPIO1B6_SHIFT); + break; + default: + goto err; + } + rk_clrsetreg(&grf->gpio0d_iomux, + GPIO0D4_MASK << GPIO0D4_SHIFT | + GPIO0D5_MASK << GPIO0D5_SHIFT | + GPIO0D6_MASK << GPIO0D6_SHIFT, + GPIO0D4_SPI0_RXD << GPIO0D4_SHIFT | + GPIO0D5_SPI1_TXD << GPIO0D5_SHIFT | + GPIO0D6_SPI1_CLK << GPIO0D6_SHIFT); + break; + default: + goto err; + } + + return 0; +err: + debug("rkspi: periph%d cs=%d not supported", spi_id, cs); + return -ENOENT; +} + +static void pinctrl_rk3188_uart_config(struct rk3188_grf *grf, int uart_id) +{ + switch (uart_id) { + case PERIPH_ID_UART0: + rk_clrsetreg(&grf->gpio1a_iomux, + GPIO1A3_MASK << GPIO1A3_SHIFT | + GPIO1A2_MASK << GPIO1A2_SHIFT | + GPIO1A1_MASK << GPIO1A1_SHIFT | + GPIO1A0_MASK << GPIO1A0_SHIFT, + GPIO1A3_UART0_RTS_N << GPIO1A3_SHIFT | + GPIO1A2_UART0_CTS_N << GPIO1A2_SHIFT | + GPIO1A1_UART0_SOUT << GPIO1A1_SHIFT | + GPIO1A0_UART0_SIN << GPIO1A0_SHIFT); + break; + case PERIPH_ID_UART1: + rk_clrsetreg(&grf->gpio1a_iomux, + GPIO1A7_MASK << GPIO1A7_SHIFT | + GPIO1A6_MASK << GPIO1A6_SHIFT | + GPIO1A5_MASK << GPIO1A5_SHIFT | + GPIO1A4_MASK << GPIO1A4_SHIFT, + GPIO1A7_UART1_RTS_N << GPIO1A7_SHIFT | + GPIO1A6_UART1_CTS_N << GPIO1A6_SHIFT | + GPIO1A5_UART1_SOUT << GPIO1A5_SHIFT | + GPIO1A4_UART1_SIN << GPIO1A4_SHIFT); + break; + case PERIPH_ID_UART2: + rk_clrsetreg(&grf->gpio1b_iomux, + GPIO1B1_MASK << GPIO1B1_SHIFT | + GPIO1B0_MASK << GPIO1B0_SHIFT, + GPIO1B1_UART2_SOUT << GPIO1B1_SHIFT | + GPIO1B0_UART2_SIN << GPIO1B0_SHIFT); + break; + case PERIPH_ID_UART3: + rk_clrsetreg(&grf->gpio1b_iomux, + GPIO1B5_MASK << GPIO1B5_SHIFT | + GPIO1B4_MASK << GPIO1B4_SHIFT | + GPIO1B3_MASK << GPIO1B3_SHIFT | + GPIO1B2_MASK << GPIO1B2_SHIFT, + GPIO1B5_UART3_RTS_N << GPIO1B5_SHIFT | + GPIO1B4_UART3_CTS_N << GPIO1B4_SHIFT | + GPIO1B3_UART3_SOUT << GPIO1B3_SHIFT | + GPIO1B2_UART3_SIN << GPIO1B2_SHIFT); + break; + default: + debug("uart id = %d iomux error!\n", uart_id); + break; + } +} + +static void pinctrl_rk3188_sdmmc_config(struct rk3188_grf *grf, int mmc_id) +{ + switch (mmc_id) { + case PERIPH_ID_EMMC: + rk_clrsetreg(&grf->soc_con0, 1 << EMMC_FLASH_SEL_SHIFT, + 1 << EMMC_FLASH_SEL_SHIFT); + rk_clrsetreg(&grf->gpio0d_iomux, + GPIO0D2_MASK << GPIO0D2_SHIFT | + GPIO0D0_MASK << GPIO0D0_SHIFT, + GPIO0D2_EMMC_CMD << GPIO0D2_SHIFT | + GPIO0D0_EMMC_CLKOUT << GPIO0D0_SHIFT); + break; + case PERIPH_ID_SDCARD: + rk_clrsetreg(&grf->gpio3b_iomux, + GPIO3B0_MASK << GPIO3B0_SHIFT, + GPIO3B0_SDMMC_DETECT_N << GPIO3B0_SHIFT); + rk_clrsetreg(&grf->gpio3a_iomux, + GPIO3A7_MASK << GPIO3A7_SHIFT | + GPIO3A6_MASK << GPIO3A6_SHIFT | + GPIO3A5_MASK << GPIO3A5_SHIFT | + GPIO3A4_MASK << GPIO3A4_SHIFT | + GPIO3A3_MASK << GPIO3A3_SHIFT | + GPIO3A3_MASK << GPIO3A2_SHIFT, + GPIO3A7_SDMMC0_DATA3 << GPIO3A7_SHIFT | + GPIO3A6_SDMMC0_DATA2 << GPIO3A6_SHIFT | + GPIO3A5_SDMMC0_DATA1 << GPIO3A5_SHIFT | + GPIO3A4_SDMMC0_DATA0 << GPIO3A4_SHIFT | + GPIO3A3_SDMMC0_CMD << GPIO3A3_SHIFT | + GPIO3A2_SDMMC0_CLKOUT << GPIO3A2_SHIFT); + break; + default: + debug("mmc id = %d iomux error!\n", mmc_id); + break; + } +} + +static int rk3188_pinctrl_request(struct udevice *dev, int func, int flags) +{ + struct rk3188_pinctrl_priv *priv = dev_get_priv(dev); + + debug("%s: func=%x, flags=%x\n", __func__, func, flags); + switch (func) { + case PERIPH_ID_PWM0: + case PERIPH_ID_PWM1: + case PERIPH_ID_PWM2: + case PERIPH_ID_PWM3: + case PERIPH_ID_PWM4: + pinctrl_rk3188_pwm_config(priv->grf, func); + break; + case PERIPH_ID_I2C0: + case PERIPH_ID_I2C1: + case PERIPH_ID_I2C2: + case PERIPH_ID_I2C3: + case PERIPH_ID_I2C4: + case PERIPH_ID_I2C5: + pinctrl_rk3188_i2c_config(priv->grf, priv->pmu, func); + break; + case PERIPH_ID_SPI0: + case PERIPH_ID_SPI1: + case PERIPH_ID_SPI2: + pinctrl_rk3188_spi_config(priv->grf, func, flags); + break; + case PERIPH_ID_UART0: + case PERIPH_ID_UART1: + case PERIPH_ID_UART2: + case PERIPH_ID_UART3: + case PERIPH_ID_UART4: + pinctrl_rk3188_uart_config(priv->grf, func); + break; + break; + case PERIPH_ID_SDMMC0: + case PERIPH_ID_SDMMC1: + pinctrl_rk3188_sdmmc_config(priv->grf, func); + break; + default: + return -EINVAL; + } + + return 0; +} + +static int rk3188_pinctrl_get_periph_id(struct udevice *dev, + struct udevice *periph) +{ + u32 cell[3]; + int ret; + + ret = fdtdec_get_int_array(gd->fdt_blob, periph->of_offset, + "interrupts", cell, ARRAY_SIZE(cell)); + if (ret < 0) + return -EINVAL; + + switch (cell[1]) { + case 44: + return PERIPH_ID_SPI0; + case 45: + return PERIPH_ID_SPI1; + case 46: + return PERIPH_ID_SPI2; + case 60: + return PERIPH_ID_I2C0; + case 62: /* Note strange order */ + return PERIPH_ID_I2C1; + case 61: + return PERIPH_ID_I2C2; + case 63: + return PERIPH_ID_I2C3; + case 64: + return PERIPH_ID_I2C4; + case 65: + return PERIPH_ID_I2C5; + } + + return -ENOENT; +} + +static int rk3188_pinctrl_set_state_simple(struct udevice *dev, + struct udevice *periph) +{ + int func; + + func = rk3188_pinctrl_get_periph_id(dev, periph); + if (func < 0) + return func; + return rk3188_pinctrl_request(dev, func, 0); +} + +#ifndef CONFIG_SPL_BUILD +int rk3188_pinctrl_get_pin_info(struct rk3188_pinctrl_priv *priv, + int banknum, int ind, u32 **addrp, uint *shiftp, + uint *maskp) +{ + struct rockchip_pin_bank *bank = &rk3188_pin_banks[banknum]; + uint muxnum; + u32 *addr; + + for (muxnum = 0; muxnum < 4; muxnum++) { + struct rockchip_iomux *mux = &bank->iomux[muxnum]; + + if (ind >= 8) { + ind -= 8; + continue; + } + + addr = &priv->grf->gpio0c_iomux - 2; + addr += mux->offset; + *shiftp = ind & 7; + *maskp = 3; + *shiftp *= 2; + + debug("%s: addr=%p, mask=%x, shift=%x\n", __func__, addr, + *maskp, *shiftp); + *addrp = addr; + return 0; + } + + return -EINVAL; +} + +static int rk3188_pinctrl_get_gpio_mux(struct udevice *dev, int banknum, + int index) +{ + struct rk3188_pinctrl_priv *priv = dev_get_priv(dev); + uint shift; + uint mask; + u32 *addr; + int ret; + + ret = rk3188_pinctrl_get_pin_info(priv, banknum, index, &addr, &shift, + &mask); + if (ret) + return ret; + return (readl(addr) & mask) >> shift; +} + +static int rk3188_pinctrl_set_pins(struct udevice *dev, int banknum, int index, + int muxval, int flags) +{ + struct rk3188_pinctrl_priv *priv = dev_get_priv(dev); + uint shift, ind = index; + uint mask; + u32 *addr; + int ret; + + debug("%s: %x %x %x %x\n", __func__, banknum, index, muxval, flags); + ret = rk3188_pinctrl_get_pin_info(priv, banknum, index, &addr, &shift, + &mask); + if (ret) + return ret; + rk_clrsetreg(addr, mask << shift, muxval << shift); + + /* Handle pullup/pulldown */ + if (flags) { + uint val = 0; + + if (flags & (1 << PIN_CONFIG_BIAS_PULL_UP)) + val = 1; + else if (flags & (1 << PIN_CONFIG_BIAS_PULL_DOWN)) + val = 2; + + ind = index >> 3; + + if (banknum == 0 && index < 12) { + addr = &priv->pmu->gpio0_p[ind]; + shift = (index & 7) * 2; + } else if (banknum == 0 && index >= 12) { + addr = &priv->grf->gpio0_p[ind - 1]; + /* + * The bits in the grf-registers have an inverse + * ordering with the lowest pin being in bits 15:14 + * and the highest pin in bits 1:0 . + */ + shift = (7 - (index & 7)) * 2; + } else { + addr = &priv->grf->gpio1_p[banknum - 1][ind]; + shift = (7 - (index & 7)) * 2; + } + debug("%s: addr=%p, val=%x, shift=%x\n", __func__, addr, val, + shift); + rk_clrsetreg(addr, 3 << shift, val << shift); + } + + return 0; +} + +static int rk3188_pinctrl_set_state(struct udevice *dev, struct udevice *config) +{ + const void *blob = gd->fdt_blob; + int pcfg_node, ret, flags, count, i; + u32 cell[60], *ptr; + + debug("%s: %s %s\n", __func__, dev->name, config->name); + ret = fdtdec_get_int_array_count(blob, config->of_offset, + "rockchip,pins", cell, + ARRAY_SIZE(cell)); + if (ret < 0) { + debug("%s: bad array %d\n", __func__, ret); + return -EINVAL; + } + count = ret; + for (i = 0, ptr = cell; i < count; i += 4, ptr += 4) { + pcfg_node = fdt_node_offset_by_phandle(blob, ptr[3]); + if (pcfg_node < 0) + return -EINVAL; + flags = pinctrl_decode_pin_config(blob, pcfg_node); + if (flags < 0) + return flags; + + ret = rk3188_pinctrl_set_pins(dev, ptr[0], ptr[1], ptr[2], + flags); + if (ret) + return ret; + } + + return 0; +} +#endif + +static struct pinctrl_ops rk3188_pinctrl_ops = { +#ifndef CONFIG_SPL_BUILD + .set_state = rk3188_pinctrl_set_state, + .get_gpio_mux = rk3188_pinctrl_get_gpio_mux, +#endif + .set_state_simple = rk3188_pinctrl_set_state_simple, + .request = rk3188_pinctrl_request, + .get_periph_id = rk3188_pinctrl_get_periph_id, +}; + +static int rk3188_pinctrl_bind(struct udevice *dev) +{ + /* scan child GPIO banks */ + return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false); +} + +#ifndef CONFIG_SPL_BUILD +static int rk3188_pinctrl_parse_tables(struct rk3188_pinctrl_priv *priv, + struct rockchip_pin_bank *banks, + int count) +{ + struct rockchip_pin_bank *bank; + uint reg, muxnum, banknum; + + reg = 0; + for (banknum = 0; banknum < count; banknum++) { + bank = &banks[banknum]; + bank->reg = reg; + debug("%s: bank %d, reg %x\n", __func__, banknum, reg * 4); + for (muxnum = 0; muxnum < 4; muxnum++) { + struct rockchip_iomux *mux = &bank->iomux[muxnum]; + + mux->offset = reg; + reg += 1; + } + } + + return 0; +} +#endif + +static int rk3188_pinctrl_probe(struct udevice *dev) +{ + struct rk3188_pinctrl_priv *priv = dev_get_priv(dev); + int ret = 0; + + priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + priv->pmu = syscon_get_first_range(ROCKCHIP_SYSCON_PMU); + debug("%s: grf=%p, pmu=%p\n", __func__, priv->grf, priv->pmu); +#ifndef CONFIG_SPL_BUILD + ret = rk3188_pinctrl_parse_tables(priv, rk3188_pin_banks, + ARRAY_SIZE(rk3188_pin_banks)); +#endif + + return ret; +} + +static const struct udevice_id rk3188_pinctrl_ids[] = { + { .compatible = "rockchip,rk3188-pinctrl" }, + { } +}; + +U_BOOT_DRIVER(pinctrl_rk3188) = { + .name = "pinctrl_rk3188", + .id = UCLASS_PINCTRL, + .of_match = rk3188_pinctrl_ids, + .priv_auto_alloc_size = sizeof(struct rk3188_pinctrl_priv), + .ops = &rk3188_pinctrl_ops, + .bind = rk3188_pinctrl_bind, + .probe = rk3188_pinctrl_probe, +};