This patch introduce shared Airoha pinctrl code. Also it sorts contents of pinctrl makefile.
Signed-off-by: Mikhail Kshevetskiy <[email protected]> --- drivers/pinctrl/Kconfig | 1 + drivers/pinctrl/Makefile | 61 +- drivers/pinctrl/airoha/Kconfig | 11 + drivers/pinctrl/airoha/Makefile | 3 + drivers/pinctrl/airoha/airoha-common.h | 476 ++++++++++++ drivers/pinctrl/airoha/pinctrl-airoha.c | 927 ++++++++++++++++++++++++ 6 files changed, 1450 insertions(+), 29 deletions(-) create mode 100644 drivers/pinctrl/airoha/Kconfig create mode 100644 drivers/pinctrl/airoha/Makefile create mode 100644 drivers/pinctrl/airoha/airoha-common.h create mode 100644 drivers/pinctrl/airoha/pinctrl-airoha.c diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 578edbf8168..46a95a1ab6b 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -405,6 +405,7 @@ config SPL_PINCTRL_ZYNQMP endif +source "drivers/pinctrl/airoha/Kconfig" source "drivers/pinctrl/broadcom/Kconfig" source "drivers/pinctrl/exynos/Kconfig" source "drivers/pinctrl/intel/Kconfig" diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile index 29fb9b484d0..6c6e8b59122 100644 --- a/drivers/pinctrl/Makefile +++ b/drivers/pinctrl/Makefile @@ -3,39 +3,42 @@ obj-y += pinctrl-uclass.o obj-$(CONFIG_$(PHASE_)PINCTRL_GENERIC) += pinctrl-generic.o +obj-y += broadcom/ +obj-y += nxp/ + +obj-$(CONFIG_ARCH_ASPEED) += aspeed/ +obj-$(CONFIG_ARCH_ATH79) += ath79/ +obj-$(CONFIG_ARCH_MTMIPS) += mtmips/ +obj-$(CONFIG_ARCH_MVEBU) += mvebu/ +obj-$(CONFIG_ARCH_NEXELL) += nexell/ +obj-$(CONFIG_ARCH_NPCM) += nuvoton/ +obj-$(CONFIG_ARCH_RENESAS) += renesas/ + obj-$(CONFIG_PINCTRL_ADI) += pinctrl-adi-adsp.o +obj-$(CONFIG_PINCTRL_AIROHA) += airoha/ obj-$(CONFIG_PINCTRL_APPLE) += pinctrl-apple.o obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o obj-$(CONFIG_PINCTRL_AT91PIO4) += pinctrl-at91-pio4.o -obj-y += nxp/ +obj-$(CONFIG_PINCTRL_EXYNOS) += exynos/ +obj-$(CONFIG_PINCTRL_INTEL) += intel/ +obj-$(CONFIG_PINCTRL_K210) += pinctrl-k210.o +obj-$(CONFIG_PINCTRL_MESON) += meson/ +obj-$(CONFIG_PINCTRL_MSCC) += mscc/ +obj-$(CONFIG_PINCTRL_MTK) += mediatek/ +obj-$(CONFIG_PINCTRL_PIC32) += pinctrl_pic32.o +obj-$(CONFIG_PINCTRL_QCOM) += qcom/ +obj-$(CONFIG_PINCTRL_QE) += pinctrl-qe-io.o obj-$(CONFIG_$(PHASE_)PINCTRL_ROCKCHIP) += rockchip/ -obj-$(CONFIG_ARCH_ASPEED) += aspeed/ -obj-$(CONFIG_ARCH_ATH79) += ath79/ -obj-$(CONFIG_PINCTRL_INTEL) += intel/ -obj-$(CONFIG_ARCH_MTMIPS) += mtmips/ -obj-$(CONFIG_ARCH_NPCM) += nuvoton/ -obj-$(CONFIG_PINCTRL_QCOM) += qcom/ -obj-$(CONFIG_ARCH_RENESAS) += renesas/ -obj-$(CONFIG_PINCTRL_SANDBOX) += pinctrl-sandbox.o -obj-$(CONFIG_PINCTRL_SUNXI) += sunxi/ -obj-$(CONFIG_$(PHASE_)PINCTRL_TEGRA) += tegra/ -obj-$(CONFIG_PINCTRL_UNIPHIER) += uniphier/ -obj-$(CONFIG_PINCTRL_PIC32) += pinctrl_pic32.o -obj-$(CONFIG_PINCTRL_EXYNOS) += exynos/ -obj-$(CONFIG_PINCTRL_K210) += pinctrl-k210.o -obj-$(CONFIG_PINCTRL_MESON) += meson/ -obj-$(CONFIG_PINCTRL_MTK) += mediatek/ -obj-$(CONFIG_PINCTRL_MSCC) += mscc/ -obj-$(CONFIG_ARCH_MVEBU) += mvebu/ -obj-$(CONFIG_ARCH_NEXELL) += nexell/ -obj-$(CONFIG_PINCTRL_QE) += pinctrl-qe-io.o -obj-$(CONFIG_PINCTRL_SCMI) += pinctrl-scmi.o -obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o -obj-$(CONFIG_PINCTRL_STI) += pinctrl-sti.o -obj-$(CONFIG_PINCTRL_STM32) += pinctrl_stm32.o -obj-$(CONFIG_$(PHASE_)PINCTRL_SX150X) += pinctrl-sx150x.o +obj-$(CONFIG_PINCTRL_SANDBOX) += pinctrl-sandbox.o +obj-$(CONFIG_PINCTRL_SCMI) += pinctrl-scmi.o +obj-$(CONFIG_PINCTRL_SINGLE) += pinctrl-single.o +obj-$(CONFIG_PINCTRL_STARFIVE) += starfive/ +obj-$(CONFIG_PINCTRL_STI) += pinctrl-sti.o +obj-$(CONFIG_PINCTRL_STM32) += pinctrl_stm32.o obj-$(CONFIG_$(PHASE_)PINCTRL_STMFX) += pinctrl-stmfx.o -obj-$(CONFIG_PINCTRL_TH1520) += pinctrl-th1520.o -obj-y += broadcom/ +obj-$(CONFIG_PINCTRL_SUNXI) += sunxi/ +obj-$(CONFIG_$(PHASE_)PINCTRL_SX150X) += pinctrl-sx150x.o +obj-$(CONFIG_$(PHASE_)PINCTRL_TEGRA) += tegra/ +obj-$(CONFIG_PINCTRL_TH1520) += pinctrl-th1520.o +obj-$(CONFIG_PINCTRL_UNIPHIER) += uniphier/ obj-$(CONFIG_$(PHASE_)PINCTRL_ZYNQMP) += pinctrl-zynqmp.o -obj-$(CONFIG_PINCTRL_STARFIVE) += starfive/ diff --git a/drivers/pinctrl/airoha/Kconfig b/drivers/pinctrl/airoha/Kconfig new file mode 100644 index 00000000000..eb87afbb374 --- /dev/null +++ b/drivers/pinctrl/airoha/Kconfig @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0-only + +config PINCTRL_AIROHA + depends on ARCH_AIROHA + select PINCTRL_FULL + select PINCTRL_GENERIC + select PINMUX + select PINCONF + select REGMAP + select SYSCON + bool diff --git a/drivers/pinctrl/airoha/Makefile b/drivers/pinctrl/airoha/Makefile new file mode 100644 index 00000000000..a25b744dd7a --- /dev/null +++ b/drivers/pinctrl/airoha/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_PINCTRL_AIROHA) += pinctrl-airoha.o diff --git a/drivers/pinctrl/airoha/airoha-common.h b/drivers/pinctrl/airoha/airoha-common.h new file mode 100644 index 00000000000..1b3b5281aac --- /dev/null +++ b/drivers/pinctrl/airoha/airoha-common.h @@ -0,0 +1,476 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef __AIROHA_COMMON_HEADER__ +#define __AIROHA_COMMON_HEADER__ + +#include <linux/types.h> +#include <linux/bitops.h> +#include <linux/bitfield.h> +#include <linux/pinctrl/pinctrl.h> + +#include <dm/device.h> +#include <dm/pinctrl.h> + +#define PINCTRL_PIN_GROUP(id, table) \ + PINCTRL_PINGROUP(id, table##_pins, ARRAY_SIZE(table##_pins)) + +#define PINCTRL_FUNC_DESC(id, table) \ + { \ + .desc = PINCTRL_PINFUNCTION(id, table##_groups, \ + ARRAY_SIZE(table##_groups)),\ + .groups = table##_func_group, \ + .group_size = ARRAY_SIZE(table##_func_group), \ + } + +#define PINCTRL_CONF_DESC(p, offset, mask) \ + { \ + .pin = p, \ + .reg = { offset, mask }, \ + } + +/* MUX */ +#define AN7581_REG_GPIO_2ND_I2C_MODE 0x0214 +#define EN7523_REG_GPIO_2ND_I2C_MODE 0x0210 +#define GPIO_MDC_IO_MASTER_MODE_MODE BIT(14) +#define GPIO_I2C_MASTER_MODE_MODE BIT(13) +#define GPIO_I2S_MODE_MASK BIT(12) +#define GPIO_I2C_SLAVE_MODE_MODE BIT(11) +#define GPIO_LAN3_LED1_MODE_MASK BIT(10) +#define GPIO_LAN3_LED0_MODE_MASK BIT(9) +#define GPIO_LAN2_LED1_MODE_MASK BIT(8) +#define GPIO_LAN2_LED0_MODE_MASK BIT(7) +#define GPIO_LAN1_LED1_MODE_MASK BIT(6) +#define GPIO_LAN1_LED0_MODE_MASK BIT(5) +#define GPIO_LAN0_LED1_MODE_MASK BIT(4) +#define GPIO_LAN0_LED0_MODE_MASK BIT(3) +#define PON_TOD_1PPS_MODE_MASK BIT(2) +#define GSW_TOD_1PPS_MODE_MASK BIT(1) +#define GPIO_2ND_I2C_MODE_MASK BIT(0) +#define NPU_UART_MODE_MASK BIT(2) + +#define REG_GPIO_SPI_CS1_MODE 0x0218 +#define EN7523_REG_GPIO_SPI_CS1_MODE 0x0214 + +#define GPIO_PCM_SPI_CS4_MODE_MASK BIT(21) +#define GPIO_PCM_SPI_CS3_MODE_MASK BIT(20) +#define GPIO_PCM_SPI_CS2_MODE_P156_MASK BIT(19) +#define GPIO_PCM_SPI_CS2_MODE_P128_MASK BIT(18) +#define AN7583_GPIO_PCM_SPI_CS2_MODE_MASK BIT(18) +#define GPIO_PCM_SPI_CS1_MODE_MASK BIT(17) +#define GPIO_PCM_SPI_MODE_MASK BIT(16) +#define GPIO_PCM2_MODE_MASK BIT(13) +#define GPIO_PCM1_MODE_MASK BIT(12) +#define GPIO_PCM_INT_MODE_MASK BIT(9) +#define GPIO_PCM_RESET_MODE_MASK BIT(8) +#define GPIO_SPI_QUAD_MODE_MASK BIT(4) +#define GPIO_SPI_CS4_MODE_MASK BIT(3) +#define GPIO_SPI_CS3_MODE_MASK BIT(2) +#define GPIO_SPI_CS2_MODE_MASK BIT(1) +#define GPIO_SPI_CS1_MODE_MASK BIT(0) + +#define REG_GPIO_PON_MODE 0x021c +#define EN7523_REG_GPIO_PON_MODE 0x0218 +#define GPIO_PARALLEL_NAND_MODE_MASK BIT(14) +#define GPIO_SGMII_MDIO_MODE_MASK BIT(13) +#define GPIO_PCIE_RESET2_MASK BIT(12) +#define SIPO_RCLK_MODE_MASK BIT(11) +#define GPIO_PCIE_RESET1_MASK BIT(10) +#define GPIO_PCIE_RESET0_MASK BIT(9) +#define GPIO_UART5_MODE_MASK BIT(8) +#define GPIO_UART4_MODE_MASK BIT(7) +#define GPIO_HSUART_CTS_RTS_MODE_MASK BIT(6) +#define GPIO_HSUART_MODE_MASK BIT(5) +#define GPIO_UART2_CTS_RTS_MODE_MASK BIT(4) +#define GPIO_UART2_MODE_MASK BIT(3) +#define GPIO_SIPO_MODE_MASK BIT(2) +#define GPIO_EMMC_MODE_MASK BIT(1) +#define GPIO_PON_MODE_MASK BIT(0) + +#define REG_NPU_UART_EN 0x0224 +#define EN7523_REG_NPU_UART_EN 0x0220 +#define JTAG_UDI_EN_MASK BIT(4) +#define JTAG_DFD_EN_MASK BIT(3) + +#define REG_FORCE_GPIO_EN 0x0228 +#define FORCE_GPIO_EN(n) BIT(n) + +/* LED MAP */ +#define REG_LAN_LED0_MAPPING 0x027c +#define REG_LAN_LED1_MAPPING 0x0280 + +#define LAN4_LED_MAPPING_MASK GENMASK(18, 16) +#define LAN4_PHY_LED_MAP(_n) FIELD_PREP_CONST(LAN4_LED_MAPPING_MASK, (_n)) + +#define LAN3_LED_MAPPING_MASK GENMASK(14, 12) +#define LAN3_PHY_LED_MAP(_n) FIELD_PREP_CONST(LAN3_LED_MAPPING_MASK, (_n)) + +#define LAN2_LED_MAPPING_MASK GENMASK(10, 8) +#define LAN2_PHY_LED_MAP(_n) FIELD_PREP_CONST(LAN2_LED_MAPPING_MASK, (_n)) + +#define LAN1_LED_MAPPING_MASK GENMASK(6, 4) +#define LAN1_PHY_LED_MAP(_n) FIELD_PREP_CONST(LAN1_LED_MAPPING_MASK, (_n)) + +#define LAN0_LED_MAPPING_MASK GENMASK(2, 0) +#define LAN0_PHY_LED_MAP(_n) FIELD_PREP_CONST(LAN0_LED_MAPPING_MASK, (_n)) + +/* CONF */ +#define REG_I2C_SDA_E2 0x001c +#define AN7583_I2C1_SCL_E2_MASK BIT(16) +#define AN7583_I2C1_SDA_E2_MASK BIT(15) +#define SPI_MISO_E2_MASK BIT(14) +#define SPI_MOSI_E2_MASK BIT(13) +#define SPI_CLK_E2_MASK BIT(12) +#define SPI_CS0_E2_MASK BIT(11) +#define EN7523_SPI_MISO_E2_MASK BIT(13) +#define EN7523_SPI_MOSI_E2_MASK BIT(12) +#define EN7523_SPI_CLK_E2_MASK BIT(11) +#define EN7523_SPI_CS0_E2_MASK BIT(10) +#define PCIE2_RESET_E2_MASK BIT(10) +#define PCIE1_RESET_E2_MASK BIT(9) +#define PCIE0_RESET_E2_MASK BIT(8) +#define AN7583_MDIO_0_E2_MASK BIT(5) +#define AN7583_MDC_0_E2_MASK BIT(4) +#define UART1_RXD_E2_MASK BIT(3) +#define UART1_TXD_E2_MASK BIT(2) +#define I2C_SCL_E2_MASK BIT(1) +#define I2C_SDA_E2_MASK BIT(0) + +#define REG_I2C_SDA_E4 0x0020 +#define AN7583_I2C1_SCL_E4_MASK BIT(16) +#define AN7583_I2C1_SDA_E4_MASK BIT(15) +#define SPI_MISO_E4_MASK BIT(14) +#define SPI_MOSI_E4_MASK BIT(13) +#define SPI_CLK_E4_MASK BIT(12) +#define SPI_CS0_E4_MASK BIT(11) +#define EN7523_SPI_MISO_E4_MASK BIT(13) +#define EN7523_SPI_MOSI_E4_MASK BIT(12) +#define EN7523_SPI_CLK_E4_MASK BIT(11) +#define EN7523_SPI_CS0_E4_MASK BIT(10) +#define PCIE2_RESET_E4_MASK BIT(10) +#define PCIE1_RESET_E4_MASK BIT(9) +#define PCIE0_RESET_E4_MASK BIT(8) +#define AN7583_MDIO_0_E4_MASK BIT(5) +#define AN7583_MDC_0_E4_MASK BIT(4) +#define UART1_RXD_E4_MASK BIT(3) +#define UART1_TXD_E4_MASK BIT(2) +#define I2C_SCL_E4_MASK BIT(1) +#define I2C_SDA_E4_MASK BIT(0) + +#define REG_GPIO_L_E2 0x0024 +#define REG_GPIO_L_E4 0x0028 +#define REG_GPIO_H_E2 0x002c +#define REG_GPIO_H_E4 0x0030 + +#define REG_I2C_SDA_PU 0x0044 +#define AN7583_I2C1_SCL_PU_MASK BIT(16) +#define AN7583_I2C1_SDA_PU_MASK BIT(15) +#define SPI_MISO_PU_MASK BIT(14) +#define SPI_MOSI_PU_MASK BIT(13) +#define SPI_CLK_PU_MASK BIT(12) +#define SPI_CS0_PU_MASK BIT(11) +#define EN7523_SPI_MISO_PU_MASK BIT(13) +#define EN7523_SPI_MOSI_PU_MASK BIT(12) +#define EN7523_SPI_CLK_PU_MASK BIT(11) +#define EN7523_SPI_CS0_PU_MASK BIT(10) +#define PCIE2_RESET_PU_MASK BIT(10) +#define PCIE1_RESET_PU_MASK BIT(9) +#define PCIE0_RESET_PU_MASK BIT(8) +#define AN7583_MDIO_0_PU_MASK BIT(5) +#define AN7583_MDC_0_PU_MASK BIT(4) +#define UART1_RXD_PU_MASK BIT(3) +#define UART1_TXD_PU_MASK BIT(2) +#define I2C_SCL_PU_MASK BIT(1) +#define I2C_SDA_PU_MASK BIT(0) + +#define REG_I2C_SDA_PD 0x0048 +#define AN7583_I2C1_SDA_PD_MASK BIT(16) +#define AN7583_I2C1_SCL_PD_MASK BIT(15) +#define SPI_MISO_PD_MASK BIT(14) +#define SPI_MOSI_PD_MASK BIT(13) +#define SPI_CLK_PD_MASK BIT(12) +#define SPI_CS0_PD_MASK BIT(11) +#define EN7523_SPI_MISO_PD_MASK BIT(13) +#define EN7523_SPI_MOSI_PD_MASK BIT(12) +#define EN7523_SPI_CLK_PD_MASK BIT(11) +#define EN7523_SPI_CS0_PD_MASK BIT(10) +#define PCIE2_RESET_PD_MASK BIT(10) +#define PCIE1_RESET_PD_MASK BIT(9) +#define PCIE0_RESET_PD_MASK BIT(8) +#define AN7583_MDIO_0_PD_MASK BIT(5) +#define AN7583_MDC_0_PD_MASK BIT(4) +#define UART1_RXD_PD_MASK BIT(3) +#define UART1_TXD_PD_MASK BIT(2) +#define I2C_SCL_PD_MASK BIT(1) +#define I2C_SDA_PD_MASK BIT(0) + +#define REG_GPIO_L_PU 0x004c +#define REG_GPIO_L_PD 0x0050 +#define REG_GPIO_H_PU 0x0054 +#define REG_GPIO_H_PD 0x0058 + +#define REG_PCIE_RESET_OD 0x018c +#define PCIE2_RESET_OD_MASK BIT(2) +#define PCIE1_RESET_OD_MASK BIT(1) +#define PCIE0_RESET_OD_MASK BIT(0) + +/* GPIOs */ +#define REG_GPIO_CTRL 0x0000 +#define REG_GPIO_DATA 0x0004 +#define REG_GPIO_INT 0x0008 +#define REG_GPIO_INT_EDGE 0x000c +#define REG_GPIO_INT_LEVEL 0x0010 +#define REG_GPIO_OE 0x0014 +#define REG_GPIO_CTRL1 0x0020 + +/* PWM MODE CONF */ +#define REG_GPIO_FLASH_MODE_CFG 0x0034 +#define GPIO15_FLASH_MODE_CFG BIT(15) +#define GPIO14_FLASH_MODE_CFG BIT(14) +#define GPIO13_FLASH_MODE_CFG BIT(13) +#define GPIO12_FLASH_MODE_CFG BIT(12) +#define GPIO11_FLASH_MODE_CFG BIT(11) +#define GPIO10_FLASH_MODE_CFG BIT(10) +#define GPIO9_FLASH_MODE_CFG BIT(9) +#define GPIO8_FLASH_MODE_CFG BIT(8) +#define GPIO7_FLASH_MODE_CFG BIT(7) +#define GPIO6_FLASH_MODE_CFG BIT(6) +#define GPIO5_FLASH_MODE_CFG BIT(5) +#define GPIO4_FLASH_MODE_CFG BIT(4) +#define GPIO3_FLASH_MODE_CFG BIT(3) +#define GPIO2_FLASH_MODE_CFG BIT(2) +#define GPIO1_FLASH_MODE_CFG BIT(1) +#define GPIO0_FLASH_MODE_CFG BIT(0) + +#define REG_GPIO_CTRL2 0x0060 +#define REG_GPIO_CTRL3 0x0064 + +/* PWM MODE CONF EXT */ +#define REG_GPIO_FLASH_MODE_CFG_EXT 0x0068 +#define GPIO51_FLASH_MODE_CFG BIT(31) +#define GPIO50_FLASH_MODE_CFG BIT(30) +#define GPIO49_FLASH_MODE_CFG BIT(29) +#define GPIO48_FLASH_MODE_CFG BIT(28) +#define GPIO47_FLASH_MODE_CFG BIT(27) +#define GPIO46_FLASH_MODE_CFG BIT(26) +#define GPIO45_FLASH_MODE_CFG BIT(25) +#define GPIO44_FLASH_MODE_CFG BIT(24) +#define GPIO43_FLASH_MODE_CFG BIT(23) +#define GPIO42_FLASH_MODE_CFG BIT(22) +#define GPIO41_FLASH_MODE_CFG BIT(21) +#define GPIO40_FLASH_MODE_CFG BIT(20) +#define GPIO39_FLASH_MODE_CFG BIT(19) +#define GPIO38_FLASH_MODE_CFG BIT(18) +#define GPIO37_FLASH_MODE_CFG BIT(17) +#define GPIO36_FLASH_MODE_CFG BIT(16) +#define GPIO31_FLASH_MODE_CFG BIT(15) +#define GPIO30_FLASH_MODE_CFG BIT(14) +#define GPIO29_FLASH_MODE_CFG BIT(13) +#define GPIO28_FLASH_MODE_CFG BIT(12) +#define GPIO27_FLASH_MODE_CFG BIT(11) +#define GPIO26_FLASH_MODE_CFG BIT(10) +#define GPIO25_FLASH_MODE_CFG BIT(9) +#define GPIO24_FLASH_MODE_CFG BIT(8) +#define GPIO23_FLASH_MODE_CFG BIT(7) +#define GPIO22_FLASH_MODE_CFG BIT(6) +#define GPIO21_FLASH_MODE_CFG BIT(5) +#define GPIO20_FLASH_MODE_CFG BIT(4) +#define GPIO19_FLASH_MODE_CFG BIT(3) +#define GPIO18_FLASH_MODE_CFG BIT(2) +#define GPIO17_FLASH_MODE_CFG BIT(1) +#define GPIO16_FLASH_MODE_CFG BIT(0) + +#define REG_GPIO_DATA1 0x0070 +#define REG_GPIO_OE1 0x0078 +#define REG_GPIO_INT1 0x007c +#define REG_GPIO_INT_EDGE1 0x0080 +#define REG_GPIO_INT_EDGE2 0x0084 +#define REG_GPIO_INT_EDGE3 0x0088 +#define REG_GPIO_INT_LEVEL1 0x008c +#define REG_GPIO_INT_LEVEL2 0x0090 +#define REG_GPIO_INT_LEVEL3 0x0094 + +#define AIROHA_NUM_PINS 64 +#define AIROHA_PIN_BANK_SIZE (AIROHA_NUM_PINS / 2) +#define AIROHA_REG_GPIOCTRL_NUM_PIN (AIROHA_NUM_PINS / 4) + +/* PWM */ +#define AIROHA_PINCTRL_PWM(gpio, mux_val) \ + { \ + .name = (gpio), \ + .regmap[0] = { \ + AIROHA_FUNC_PWM_MUX, \ + REG_GPIO_FLASH_MODE_CFG, \ + (mux_val), \ + (mux_val) \ + }, \ + .regmap_size = 1, \ + } \ + +#define AIROHA_PINCTRL_PWM_EXT(gpio, mux_val) \ + { \ + .name = (gpio), \ + .regmap[0] = { \ + AIROHA_FUNC_PWM_EXT_MUX, \ + REG_GPIO_FLASH_MODE_CFG_EXT, \ + (mux_val), \ + (mux_val) \ + }, \ + .regmap_size = 1, \ + } \ + +#define AIROHA_PINCTRL_PHY_LED0(variant, gpio, mux_val, map_mask, map_val) \ + { \ + .name = (gpio), \ + .regmap[0] = { \ + AIROHA_FUNC_MUX, \ + variant##_REG_GPIO_2ND_I2C_MODE, \ + (mux_val), \ + (mux_val), \ + }, \ + .regmap[1] = { \ + AIROHA_FUNC_MUX, \ + REG_LAN_LED0_MAPPING, \ + (map_mask), \ + (map_val), \ + }, \ + .regmap_size = 2, \ + } + +#define AIROHA_PINCTRL_PHY_LED1(variant, gpio, mux_val, map_mask, map_val) \ + { \ + .name = (gpio), \ + .regmap[0] = { \ + AIROHA_FUNC_MUX, \ + variant##_REG_GPIO_2ND_I2C_MODE, \ + (mux_val), \ + (mux_val), \ + }, \ + .regmap[1] = { \ + AIROHA_FUNC_MUX, \ + REG_LAN_LED1_MAPPING, \ + (map_mask), \ + (map_val), \ + }, \ + .regmap_size = 2, \ + } + +#define airoha_pinctrl_get_pullup_conf(pinctrl, pin, val) \ + airoha_pinctrl_get_conf((pinctrl), AIROHA_PINCTRL_CONFS_PULLUP, \ + (pin), (val)) +#define airoha_pinctrl_get_pulldown_conf(pinctrl, pin, val) \ + airoha_pinctrl_get_conf((pinctrl), AIROHA_PINCTRL_CONFS_PULLDOWN, \ + (pin), (val)) +#define airoha_pinctrl_get_drive_e2_conf(pinctrl, pin, val) \ + airoha_pinctrl_get_conf((pinctrl), AIROHA_PINCTRL_CONFS_DRIVE_E2, \ + (pin), (val)) +#define airoha_pinctrl_get_drive_e4_conf(pinctrl, pin, val) \ + airoha_pinctrl_get_conf((pinctrl), AIROHA_PINCTRL_CONFS_DRIVE_E4, \ + (pin), (val)) +#define airoha_pinctrl_get_pcie_rst_od_conf(pinctrl, pin, val) \ + airoha_pinctrl_get_conf((pinctrl), AIROHA_PINCTRL_CONFS_PCIE_RST_OD, \ + (pin), (val)) +#define airoha_pinctrl_set_pullup_conf(pinctrl, pin, val) \ + airoha_pinctrl_set_conf((pinctrl), AIROHA_PINCTRL_CONFS_PULLUP, \ + (pin), (val)) +#define airoha_pinctrl_set_pulldown_conf(pinctrl, pin, val) \ + airoha_pinctrl_set_conf((pinctrl), AIROHA_PINCTRL_CONFS_PULLDOWN, \ + (pin), (val)) +#define airoha_pinctrl_set_drive_e2_conf(pinctrl, pin, val) \ + airoha_pinctrl_set_conf((pinctrl), AIROHA_PINCTRL_CONFS_DRIVE_E2, \ + (pin), (val)) +#define airoha_pinctrl_set_drive_e4_conf(pinctrl, pin, val) \ + airoha_pinctrl_set_conf((pinctrl), AIROHA_PINCTRL_CONFS_DRIVE_E4, \ + (pin), (val)) +#define airoha_pinctrl_set_pcie_rst_od_conf(pinctrl, pin, val) \ + airoha_pinctrl_set_conf((pinctrl), AIROHA_PINCTRL_CONFS_PCIE_RST_OD, \ + (pin), (val)) + +struct airoha_pinctrl_reg { + u32 offset; + u32 mask; +}; + +enum airoha_pinctrl_mux_func { + AIROHA_FUNC_MUX, + AIROHA_FUNC_PWM_MUX, + AIROHA_FUNC_PWM_EXT_MUX, +}; + +struct airoha_pinctrl_func_group { + const char *name; + struct { + enum airoha_pinctrl_mux_func mux; + u32 offset; + u32 mask; + u32 val; + } regmap[2]; + int regmap_size; +}; + +struct airoha_pinctrl_func { + const struct pinfunction desc; + const struct airoha_pinctrl_func_group *groups; + u8 group_size; +}; + +struct airoha_pinctrl_conf { + u32 pin; + struct airoha_pinctrl_reg reg; +}; + +struct airoha_pinctrl_gpiochip { + /* gpio */ + const u32 *data; + const u32 *dir; + const u32 *out; + /* irq */ + const u32 *status; + const u32 *level; + const u32 *edge; + + u32 irq_type[AIROHA_NUM_PINS]; +}; + +struct airoha_pinctrl_confs_info { + const struct airoha_pinctrl_conf *confs; + unsigned int num_confs; +}; + +enum airoha_pinctrl_confs_type { + AIROHA_PINCTRL_CONFS_PULLUP, + AIROHA_PINCTRL_CONFS_PULLDOWN, + AIROHA_PINCTRL_CONFS_DRIVE_E2, + AIROHA_PINCTRL_CONFS_DRIVE_E4, + AIROHA_PINCTRL_CONFS_PCIE_RST_OD, + + AIROHA_PINCTRL_CONFS_MAX +}; + +struct airoha_pinctrl { + struct udevice *dev; + + struct regmap *chip_scu; + struct regmap *regmap; + + struct airoha_pinctrl_match_data *data; + + struct airoha_pinctrl_gpiochip gpiochip; +}; + +struct airoha_pinctrl_match_data { + const int gpio_offs; + const int gpio_pin_cnt; + const struct pinctrl_pin_desc *pins; + const unsigned int num_pins; + const struct pingroup *grps; + const unsigned int num_grps; + const struct airoha_pinctrl_func *funcs; + const unsigned int num_funcs; + const struct airoha_pinctrl_confs_info confs_info[AIROHA_PINCTRL_CONFS_MAX]; +}; + +extern const struct pinctrl_ops airoha_pinctrl_ops; + +int airoha_pinctrl_probe(struct udevice *dev); +int airoha_pinctrl_bind(struct udevice *dev); + +#endif diff --git a/drivers/pinctrl/airoha/pinctrl-airoha.c b/drivers/pinctrl/airoha/pinctrl-airoha.c new file mode 100644 index 00000000000..187c0fbf670 --- /dev/null +++ b/drivers/pinctrl/airoha/pinctrl-airoha.c @@ -0,0 +1,927 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Author: Lorenzo Bianconi <[email protected]> + * Author: Benjamin Larsson <[email protected]> + * Author: Markus Gothe <[email protected]> + * Author: Mikhail Kshevetskiy <[email protected]> + */ +#include <dm.h> +#include <dm/device_compat.h> +#include <dm/device-internal.h> +#include <dm/lists.h> +#include <dm/ofnode.h> +#include <asm-generic/gpio.h> +#include <asm/arch/scu-regmap.h> +#include <dt-bindings/pinctrl/mt65xx.h> +#include <regmap.h> +#include <syscon.h> + +#include "airoha-common.h" + +static const u32 gpio_data_regs[] = { + REG_GPIO_DATA, + REG_GPIO_DATA1 +}; + +static const u32 gpio_out_regs[] = { + REG_GPIO_OE, + REG_GPIO_OE1 +}; + +static const u32 gpio_dir_regs[] = { + REG_GPIO_CTRL, + REG_GPIO_CTRL1, + REG_GPIO_CTRL2, + REG_GPIO_CTRL3 +}; + +static const u32 irq_status_regs[] = { + REG_GPIO_INT, + REG_GPIO_INT1 +}; + +static const u32 irq_level_regs[] = { + REG_GPIO_INT_LEVEL, + REG_GPIO_INT_LEVEL1, + REG_GPIO_INT_LEVEL2, + REG_GPIO_INT_LEVEL3 +}; + +static const u32 irq_edge_regs[] = { + REG_GPIO_INT_EDGE, + REG_GPIO_INT_EDGE1, + REG_GPIO_INT_EDGE2, + REG_GPIO_INT_EDGE3 +}; + +static int pin_in_group(unsigned int pin, const struct pingroup *grp) +{ + for (int i = 0; i < grp->npins; i++) { + if (grp->pins[i] == pin) + return 1; + } + + return 0; +} + +static int pin_to_gpio(struct airoha_pinctrl *pinctrl, unsigned int pin) +{ + struct airoha_pinctrl_match_data *data = pinctrl->data; + + if (pin < data->gpio_offs || + pin >= data->gpio_offs + data->gpio_pin_cnt) + return -EINVAL; + + return pin - data->gpio_offs; +} + +/* gpio callbacks */ +static int airoha_gpio_set(struct airoha_pinctrl *pinctrl, unsigned int gpio, + int value) +{ + u32 offset = gpio % AIROHA_PIN_BANK_SIZE; + u8 index = gpio / AIROHA_PIN_BANK_SIZE; + + return regmap_update_bits(pinctrl->regmap, + pinctrl->gpiochip.data[index], + BIT(offset), value ? BIT(offset) : 0); +} + +static int airoha_gpio_get(struct airoha_pinctrl *pinctrl, unsigned int gpio) +{ + u32 val, pin = gpio % AIROHA_PIN_BANK_SIZE; + u8 index = gpio / AIROHA_PIN_BANK_SIZE; + int err; + + err = regmap_read(pinctrl->regmap, + pinctrl->gpiochip.data[index], &val); + + return err ? err : !!(val & BIT(pin)); +} + +static int airoha_gpio_get_direction(struct airoha_pinctrl *pinctrl, unsigned int gpio) +{ + u32 mask, index, val; + int err, field_shift; + + field_shift = 2 * (gpio % AIROHA_REG_GPIOCTRL_NUM_PIN); + mask = GENMASK(field_shift + 1, field_shift); + index = gpio / AIROHA_REG_GPIOCTRL_NUM_PIN; + + err = regmap_read(pinctrl->regmap, + pinctrl->gpiochip.dir[index], &val); + if (err) + return err; + + if ((val & mask) > BIT(field_shift)) + return -EINVAL; + + return (val & mask) ? GPIOF_OUTPUT : GPIOF_INPUT; +} + +static int airoha_gpio_set_direction(struct airoha_pinctrl *pinctrl, + unsigned int gpio, bool input) +{ + u32 mask, index; + int err, field_shift; + + /* set output enable */ + mask = BIT(gpio % AIROHA_PIN_BANK_SIZE); + index = gpio / AIROHA_PIN_BANK_SIZE; + err = regmap_update_bits(pinctrl->regmap, pinctrl->gpiochip.out[index], + mask, !input ? mask : 0); + if (err) + return err; + + /* set direction */ + field_shift = 2 * (gpio % AIROHA_REG_GPIOCTRL_NUM_PIN); + mask = GENMASK(field_shift + 1, field_shift); + index = gpio / AIROHA_REG_GPIOCTRL_NUM_PIN; + + return regmap_update_bits(pinctrl->regmap, + pinctrl->gpiochip.dir[index], + mask, !input ? BIT(field_shift) : 0); +} + +/* pinmux callbacks */ +static int airoha_pinmux_set_mux(struct airoha_pinctrl *pinctrl, + unsigned int selector, + unsigned int group) +{ + const struct airoha_pinctrl_func *func; + const struct pingroup *grp; + int i; + + func = &pinctrl->data->funcs[selector]; + grp = &pinctrl->data->grps[group]; + + dev_dbg(pinctrl->dev, "enable function %s group %s\n", + func->desc.name, grp->name); + + for (i = 0; i < func->group_size; i++) { + const struct airoha_pinctrl_func_group *group; + int j; + + group = &func->groups[i]; + if (strcmp(group->name, grp->name)) + continue; + + for (j = 0; j < group->regmap_size; j++) { + switch (group->regmap[j].mux) { + case AIROHA_FUNC_PWM_EXT_MUX: + case AIROHA_FUNC_PWM_MUX: + regmap_update_bits(pinctrl->regmap, + group->regmap[j].offset, + group->regmap[j].mask, + group->regmap[j].val); + break; + default: + regmap_update_bits(pinctrl->chip_scu, + group->regmap[j].offset, + group->regmap[j].mask, + group->regmap[j].val); + break; + } + } + return 0; + } + + return -EINVAL; +} + +static int airoha_pinmux_set_direction(struct airoha_pinctrl *pinctrl, + unsigned int p, bool input) +{ + int gpio; + + gpio = pin_to_gpio(pinctrl, p); + if (gpio < 0) + return gpio; + + return airoha_gpio_set_direction(pinctrl, gpio, input); +} + +/* pinconf callbacks */ +static const struct airoha_pinctrl_reg * +airoha_pinctrl_get_conf_reg(const struct airoha_pinctrl_conf *conf, + int conf_size, int pin) +{ + int i; + + for (i = 0; i < conf_size; i++) { + if (conf[i].pin == pin) + return &conf[i].reg; + } + + return NULL; +} + +static int airoha_pinctrl_get_conf(struct airoha_pinctrl *pinctrl, + enum airoha_pinctrl_confs_type conf_type, + int pin, u32 *val) +{ + const struct airoha_pinctrl_confs_info *confs_info; + const struct airoha_pinctrl_reg *reg; + + confs_info = &pinctrl->data->confs_info[conf_type]; + + reg = airoha_pinctrl_get_conf_reg(confs_info->confs, + confs_info->num_confs, + pin); + if (!reg) + return -EINVAL; + + if (regmap_read(pinctrl->chip_scu, reg->offset, val)) + return -EINVAL; + + *val = field_get(reg->mask, *val); + + return 0; +} + +static int airoha_pinctrl_set_conf(struct airoha_pinctrl *pinctrl, + enum airoha_pinctrl_confs_type conf_type, + int pin, u32 val) +{ + const struct airoha_pinctrl_confs_info *confs_info; + const struct airoha_pinctrl_reg *reg = NULL; + + confs_info = &pinctrl->data->confs_info[conf_type]; + + reg = airoha_pinctrl_get_conf_reg(confs_info->confs, + confs_info->num_confs, + pin); + if (!reg) + return -EINVAL; + + if (regmap_update_bits(pinctrl->chip_scu, reg->offset, reg->mask, + field_prep(reg->mask, val))) + return -EINVAL; + + return 0; +} + +static int airoha_pinconf_get_direction(struct airoha_pinctrl *pinctrl, u32 p) +{ + int gpio; + + gpio = pin_to_gpio(pinctrl, p); + if (gpio < 0) + return gpio; + + return airoha_gpio_get_direction(pinctrl, gpio); +} + +static int airoha_pinconf_get(struct airoha_pinctrl *pinctrl, + unsigned int pin, unsigned long *config) +{ + enum pin_config_param param = pinconf_to_config_param(*config); + u32 arg; + + switch (param) { + case PIN_CONFIG_BIAS_PULL_DOWN: + case PIN_CONFIG_BIAS_DISABLE: + case PIN_CONFIG_BIAS_PULL_UP: { + u32 pull_up, pull_down; + + if (airoha_pinctrl_get_pullup_conf(pinctrl, pin, &pull_up) || + airoha_pinctrl_get_pulldown_conf(pinctrl, pin, &pull_down)) + return -EINVAL; + + if (param == PIN_CONFIG_BIAS_PULL_UP && + !(pull_up && !pull_down)) + return -EINVAL; + else if (param == PIN_CONFIG_BIAS_PULL_DOWN && + !(pull_down && !pull_up)) + return -EINVAL; + else if (pull_up || pull_down) + return -EINVAL; + + arg = 1; + break; + } + case PIN_CONFIG_DRIVE_STRENGTH: { + u32 e2, e4; + + if (airoha_pinctrl_get_drive_e2_conf(pinctrl, pin, &e2) || + airoha_pinctrl_get_drive_e4_conf(pinctrl, pin, &e4)) + return -EINVAL; + + arg = e4 << 1 | e2; + break; + } + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + if (airoha_pinctrl_get_pcie_rst_od_conf(pinctrl, pin, &arg)) + return -EINVAL; + break; + case PIN_CONFIG_OUTPUT_ENABLE: + case PIN_CONFIG_INPUT_ENABLE: + arg = airoha_pinconf_get_direction(pinctrl, pin); + if ((param != PIN_CONFIG_OUTPUT_ENABLE || arg != GPIOF_OUTPUT) && + (param != PIN_CONFIG_INPUT_ENABLE || arg != GPIOF_INPUT)) + return -EINVAL; + + arg = 1; + break; + default: + return -EOPNOTSUPP; + } + + *config = pinconf_to_config_packed(param, arg); + + return 0; +} + +static int airoha_pinconf_set_pin_value(struct airoha_pinctrl *pinctrl, + unsigned int p, bool value) +{ + int gpio; + + gpio = pin_to_gpio(pinctrl, p); + if (gpio < 0) + return gpio; + + return airoha_gpio_set(pinctrl, gpio, value); +} + +static int airoha_pinconf_set(struct airoha_pinctrl *pinctrl, + unsigned int pin, unsigned long *configs, + unsigned int num_configs) +{ + int i, err; + + for (i = 0; i < num_configs; i++) { + u32 param = pinconf_to_config_param(configs[i]); + u32 arg = pinconf_to_config_argument(configs[i]); + + switch (param) { + case PIN_CONFIG_BIAS_DISABLE: + err = airoha_pinctrl_set_pulldown_conf(pinctrl, pin, 0); + if (err) + return err; + + err = airoha_pinctrl_set_pullup_conf(pinctrl, pin, 0); + if (err) + return err; + + break; + + case PIN_CONFIG_BIAS_PULL_UP: + err = airoha_pinctrl_set_pulldown_conf(pinctrl, pin, 0); + if (err) + return err; + + err = airoha_pinctrl_set_pullup_conf(pinctrl, pin, 1); + if (err) + return err; + + break; + + case PIN_CONFIG_BIAS_PULL_DOWN: + err = airoha_pinctrl_set_pulldown_conf(pinctrl, pin, 1); + if (err) + return err; + + err = airoha_pinctrl_set_pullup_conf(pinctrl, pin, 0); + if (err) + return err; + + break; + + case PIN_CONFIG_DRIVE_STRENGTH: { + u32 e2 = 0, e4 = 0; + + switch (arg) { + case MTK_DRIVE_2mA: + break; + case MTK_DRIVE_4mA: + e2 = 1; + break; + case MTK_DRIVE_6mA: + e4 = 1; + break; + case MTK_DRIVE_8mA: + e2 = 1; + e4 = 1; + break; + default: + return -EINVAL; + } + + err = airoha_pinctrl_set_drive_e2_conf(pinctrl, pin, e2); + if (err) + return err; + + err = airoha_pinctrl_set_drive_e4_conf(pinctrl, pin, e4); + if (err) + return err; + + break; + } + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + err = airoha_pinctrl_set_pcie_rst_od_conf(pinctrl, pin, !!arg); + if (err) + return err; + + break; + + case PIN_CONFIG_OUTPUT_ENABLE: + case PIN_CONFIG_INPUT_ENABLE: + case PIN_CONFIG_OUTPUT: { + bool input = param == PIN_CONFIG_INPUT_ENABLE; + + err = airoha_pinmux_set_direction(pinctrl, pin, input); + if (err) + return err; + + if (param == PIN_CONFIG_OUTPUT) { + err = airoha_pinconf_set_pin_value(pinctrl, + pin, !!arg); + if (err) + return err; + } + + break; + } + default: + return -EOPNOTSUPP; + } + } + + return 0; +} + +static int airoha_pinconf_group_set(struct airoha_pinctrl *pinctrl, + unsigned int group, unsigned long *configs, + unsigned int num_configs) +{ + int i; + + for (i = 0; i < pinctrl->data->grps[group].npins; i++) { + int err; + + err = airoha_pinconf_set(pinctrl, + pinctrl->data->grps[group].pins[i], + configs, num_configs); + if (err) + return err; + } + + return 0; +} + +static int func_grp_active(struct airoha_pinctrl *pinctrl, + const struct airoha_pinctrl_func *func, + const char *grp_name) +{ + const struct airoha_pinctrl_func_group *func_grp; + u32 val, match; + int ret; + + for (int i = 0; i < func->group_size; i++) { + if (strcmp(func->groups[i].name, grp_name)) + continue; + + match = 0; + func_grp = &func->groups[i]; + for (int j = 0; j < func_grp->regmap_size; j++) { + switch (func_grp->regmap[j].mux) { + case AIROHA_FUNC_PWM_EXT_MUX: + case AIROHA_FUNC_PWM_MUX: + ret = regmap_read(pinctrl->regmap, + func_grp->regmap[j].offset, + &val); + break; + default: + ret = regmap_read(pinctrl->chip_scu, + func_grp->regmap[j].offset, + &val); + break; + } + + if (ret) + break; + + if ((val & func_grp->regmap[j].mask) != + func_grp->regmap[j].val) + break; + + match++; + } + + return match == func->groups[i].regmap_size; + } + + return 0; +} + +/*********************** + * gpio driver interface + ***********************/ +static int airoha_pinctrl_gpio_set(struct udevice *dev, unsigned int gpio, + int value) +{ + return airoha_gpio_set(dev_get_priv(dev->parent), gpio, value); +} + +static int airoha_pinctrl_gpio_get(struct udevice *dev, unsigned int gpio) +{ + return airoha_gpio_get(dev_get_priv(dev->parent), gpio); +} + +static int airoha_pinctrl_gpio_get_direction(struct udevice *dev, + unsigned int gpio) +{ + return airoha_gpio_get_direction(dev_get_priv(dev->parent), gpio); +} + +static int airoha_pinctrl_gpio_direction_input(struct udevice *dev, + unsigned int gpio) +{ + return airoha_gpio_set_direction(dev_get_priv(dev->parent), + gpio, true); +} + +static int airoha_pinctrl_gpio_direction_output(struct udevice *dev, + unsigned int gpio, int val) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev->parent); + int err; + + err = airoha_gpio_set_direction(pinctrl, gpio, false); + if (err) + return err; + + return airoha_gpio_set(pinctrl, gpio, val); +} + +static int airoha_pinctrl_gpio_probe(struct udevice *dev) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev->parent); + struct gpio_dev_priv *uc_priv; + + uc_priv = dev_get_uclass_priv(dev); + uc_priv->bank_name = "airoha"; + uc_priv->gpio_count = pinctrl->data->gpio_pin_cnt; + + return 0; +} + +static int airoha_pinctrl_gpio_bind(struct udevice *dev) +{ + dev_or_flags(dev, DM_FLAG_PROBE_AFTER_BIND); + + return 0; +} + +static const struct dm_gpio_ops airoha_pinctrl_gpio_ops = { + .set_value = airoha_pinctrl_gpio_set, + .get_value = airoha_pinctrl_gpio_get, + .get_function = airoha_pinctrl_gpio_get_direction, + .direction_input = airoha_pinctrl_gpio_direction_input, + .direction_output = airoha_pinctrl_gpio_direction_output, +}; + +static struct driver airoha_pinctrl_gpio_driver = { + .name = "airoha_pinctrl_gpio", + .id = UCLASS_GPIO, + .probe = airoha_pinctrl_gpio_probe, + .bind = airoha_pinctrl_gpio_bind, + .ops = &airoha_pinctrl_gpio_ops, +}; + +static int airoha_pinctrl_gpio_register(struct udevice *parent) +{ + struct uclass_driver *drv; + ofnode node; + int ret; + + drv = lists_uclass_lookup(UCLASS_GPIO); + if (!drv) + return -ENOENT; + + /* + * Support upstream linux DTSI that define gpio-controller + * in the root node (instead of a dedicated subnode) + */ + if (dev_read_bool(parent, "gpio-controller")) { + /* upstream DTSI, use current node */ + node = dev_ofnode(parent); + } else { + /* legacy DTSI, search for gpio-controller subnode */ + ret = -ENOENT; + dev_for_each_subnode(node, parent) + if (ofnode_read_bool(node, "gpio-controller")) { + ret = 0; + break; + } + + if (ret) + return ret; + } + + return device_bind_with_driver_data(parent, + &airoha_pinctrl_gpio_driver, + "airoha_pinctrl_gpio", + 0, node, NULL); +} + +/************************** + * pinctrl driver interface + **************************/ +static int airoha_get_pins_count(struct udevice *dev) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + return pinctrl->data->num_pins; +} + +static const char *airoha_get_pin_name(struct udevice *dev, + unsigned int selector) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + return pinctrl->data->pins[selector].name; +} + +static int airoha_get_groups_count(struct udevice *dev) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + return pinctrl->data->num_grps; +} + +static const char *airoha_get_group_name(struct udevice *dev, + unsigned int selector) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + return pinctrl->data->grps[selector].name; +} + +static int airoha_get_funcs_count(struct udevice *dev) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + return pinctrl->data->num_funcs; +} + +static const char *airoha_get_func_name(struct udevice *dev, + unsigned int selector) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + return pinctrl->data->funcs[selector].desc.name; +} + +static int airoha_pinmux_group_set(struct udevice *dev, + unsigned int group_selector, + unsigned int func_selector) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + dev_dbg(dev, "enabling %s function for pin group %s\n", + airoha_get_func_name(dev, func_selector), + airoha_get_group_name(dev, group_selector)); + + return airoha_pinmux_set_mux(pinctrl, func_selector, group_selector); +} + +static int airoha_pinmux_set(struct udevice *dev, + unsigned int pin_selector, + unsigned int func_selector) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + const struct airoha_pinctrl_match_data *data = pinctrl->data; + const char *pin_name; + unsigned int selector; + + pin_name = data->pins[pin_selector].name; + + /* find group matching the pin_name */ + for (selector = 0; selector < data->num_grps; selector++) { + if (!strcmp(pin_name, data->grps[selector].name)) + return airoha_pinmux_group_set(dev, selector, + func_selector); + } + + return -ENOENT; +} + +static const struct pinconf_param airoha_pinconf_params[] = { + { "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 }, + { "bias-pull-up", PIN_CONFIG_BIAS_PULL_UP, 1 }, + { "bias-pull-down", PIN_CONFIG_BIAS_PULL_DOWN, 1 }, + { "drive-strength", PIN_CONFIG_DRIVE_STRENGTH, 0 }, + { "drive-open-drain", PIN_CONFIG_DRIVE_OPEN_DRAIN, 0 }, + { "output-enable", PIN_CONFIG_OUTPUT_ENABLE, 1 }, + { "input-enable", PIN_CONFIG_INPUT_ENABLE, 1 }, +}; + +static const char *airoha_pinconf_param_name(unsigned int param) +{ + for (int i = 0; i < ARRAY_SIZE(airoha_pinconf_params); i++) { + if (airoha_pinconf_params[i].param == param) + return airoha_pinconf_params[i].property; + } + + return NULL; +} + +static int airoha_pinconf_set_handler(struct udevice *dev, + unsigned pin_selector, + unsigned int param, + unsigned int argument) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + unsigned long configs[1] = { pinconf_to_config_packed(param, argument) }; + unsigned int pin = pinctrl->data->pins[pin_selector].number; + + dev_dbg(dev, "enabling %s=%d property for pin %s\n", + airoha_pinconf_param_name(param), argument, + airoha_get_pin_name(dev, pin_selector)); + + return airoha_pinconf_set(pinctrl, pin, configs, + ARRAY_SIZE(configs)); +} + +static int airoha_pinconf_group_set_handler(struct udevice *dev, + unsigned int group_selector, + unsigned int param, + unsigned int argument) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + unsigned long configs[1] = { pinconf_to_config_packed(param, argument) }; + + dev_dbg(dev, "enabling %s=%d property for pin group %s\n", + airoha_pinconf_param_name(param), argument, + airoha_get_group_name(dev, group_selector)); + + return airoha_pinconf_group_set(pinctrl, group_selector, + configs, ARRAY_SIZE(configs)); +} + +static int airoha_get_pin_muxing(struct udevice *dev, unsigned int selector, + char *buf, int size) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + struct airoha_pinctrl_match_data *data = pinctrl->data; + const char *name, *type; + int ret, gpio, found = 0; + unsigned long config; + unsigned int param, pin; + u32 val; + + pin = data->pins[selector].number; + for (int i = 0; i < data->num_grps; i++) { + if (!pin_in_group(pin, &data->grps[i])) + continue; + + name = data->grps[i].name; + for (int j = 0; j < data->num_funcs; j++) { + if (!func_grp_active(pinctrl, &data->funcs[j], name)) + continue; + + ret = scnprintf(buf, size, "%s(%s)", + data->funcs[j].desc.name, name); + if (ret < 0) + return -ENOSPC; + + found = 1; + buf += ret; + size -= ret; + break; + } + + if (found) + break; + } + + if (!found) { + gpio = pin_to_gpio(pinctrl, pin); + if (gpio < 0) { + /* + * WARNING: non-gpio pin with unknown function. + * + * This should not have happened, the function group + * tables are incomplete. Please fix ASAP. + */ + ret = scnprintf(buf, size, "default"); + } else { + /* assume gpio */ + val = airoha_gpio_get(pinctrl, gpio); + switch (airoha_gpio_get_direction(pinctrl, gpio)) { + case GPIOF_INPUT: + type = "input"; + break; + case GPIOF_OUTPUT: + type = "output"; + break; + default: + type = "unknown"; + break; + }; + ret = scnprintf(buf, size, "gpio%d, %s(%d)", + gpio, type, val); + } + + if (ret < 0) + return -ENOSPC; + + buf += ret; + size -= ret; + } + + for (int i = 0; i < ARRAY_SIZE(airoha_pinconf_params); i++) { + param = airoha_pinconf_params[i].param; + config = pinconf_to_config_packed(param, 0); + ret = airoha_pinconf_get(pinctrl, pin, &config); + if (ret < 0) + continue; + + name = airoha_pinconf_params[i].property; + switch (param) { + case PIN_CONFIG_BIAS_DISABLE: + case PIN_CONFIG_BIAS_PULL_UP: + case PIN_CONFIG_BIAS_PULL_DOWN: + ret = scnprintf(buf, size, ", %s", name); + break; + + case PIN_CONFIG_DRIVE_STRENGTH: + case PIN_CONFIG_DRIVE_OPEN_DRAIN: + val = pinconf_to_config_argument(config); + ret = scnprintf(buf, size, ", %s(%d)", name, val); + break; + + default: + break; + } + + if (ret < 0) + return -ENOSPC; + + buf += ret; + size -= ret; + } + + return 0; +} + +const struct pinctrl_ops airoha_pinctrl_ops = { + .get_pins_count = airoha_get_pins_count, + .get_pin_name = airoha_get_pin_name, + .get_groups_count = airoha_get_groups_count, + .get_group_name = airoha_get_group_name, + .get_functions_count = airoha_get_funcs_count, + .get_function_name = airoha_get_func_name, + .pinmux_set = airoha_pinmux_set, + .pinmux_group_set = airoha_pinmux_group_set, + + .pinconf_num_params = ARRAY_SIZE(airoha_pinconf_params), + .pinconf_params = airoha_pinconf_params, + .pinconf_set = airoha_pinconf_set_handler, + .pinconf_group_set = airoha_pinconf_group_set_handler, + + .set_state = pinctrl_generic_set_state, + .get_pin_muxing = airoha_get_pin_muxing, +}; + +int airoha_pinctrl_probe(struct udevice *dev) +{ + struct airoha_pinctrl *pinctrl = dev_get_priv(dev); + + pinctrl->dev = dev; + pinctrl->data = (struct airoha_pinctrl_match_data *)dev_get_driver_data(dev); + + pinctrl->regmap = syscon_node_to_regmap(dev_ofnode(dev->parent)); + if (IS_ERR(pinctrl->regmap)) + return PTR_ERR(pinctrl->regmap); + + pinctrl->chip_scu = airoha_get_chip_scu_regmap(); + if (IS_ERR(pinctrl->chip_scu)) + return PTR_ERR(pinctrl->chip_scu); + + pinctrl->gpiochip.data = gpio_data_regs; + pinctrl->gpiochip.dir = gpio_dir_regs; + pinctrl->gpiochip.out = gpio_out_regs; + pinctrl->gpiochip.status = irq_status_regs; + pinctrl->gpiochip.level = irq_level_regs; + pinctrl->gpiochip.edge = irq_edge_regs; + + return 0; +} + +int airoha_pinctrl_bind(struct udevice *dev) +{ + if (airoha_pinctrl_gpio_register(dev)) + debug("Warning: can't bind gpio driver with device node\n"); + + /* + * Make sure that the pinctrl driver gets probed after binding, + * otherwise GPIO interface driver will not be probed as well. + * GPIOs of non-probed driver can't be used. + */ + dev_or_flags(dev, DM_FLAG_PROBE_AFTER_BIND); + + return 0; +} -- 2.53.0
