diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-ingenic.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-ingenic.c | 852 |
1 files changed, 852 insertions, 0 deletions
diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c new file mode 100644 index 000000000000..d8473d929cb1 --- /dev/null +++ b/drivers/pinctrl/pinctrl-ingenic.c @@ -0,0 +1,852 @@ +/* + * Ingenic SoCs pinctrl driver + * + * Copyright (c) 2017 Paul Cercueil <paul@crapouillou.net> + * + * License terms: GNU General Public License (GPL) version 2 + */ + +#include <linux/compiler.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/of_device.h> +#include <linux/of_platform.h> +#include <linux/pinctrl/pinctrl.h> +#include <linux/pinctrl/pinmux.h> +#include <linux/pinctrl/pinconf.h> +#include <linux/pinctrl/pinconf-generic.h> +#include <linux/platform_device.h> +#include <linux/regmap.h> +#include <linux/slab.h> + +#include "core.h" +#include "pinconf.h" +#include "pinmux.h" + +#define JZ4740_GPIO_DATA 0x10 +#define JZ4740_GPIO_PULL_DIS 0x30 +#define JZ4740_GPIO_FUNC 0x40 +#define JZ4740_GPIO_SELECT 0x50 +#define JZ4740_GPIO_DIR 0x60 +#define JZ4740_GPIO_TRIG 0x70 +#define JZ4740_GPIO_FLAG 0x80 + +#define JZ4770_GPIO_INT 0x10 +#define JZ4770_GPIO_MSK 0x20 +#define JZ4770_GPIO_PAT1 0x30 +#define JZ4770_GPIO_PAT0 0x40 +#define JZ4770_GPIO_FLAG 0x50 +#define JZ4770_GPIO_PEN 0x70 + +#define REG_SET(x) ((x) + 0x4) +#define REG_CLEAR(x) ((x) + 0x8) + +#define PINS_PER_GPIO_CHIP 32 + +enum jz_version { + ID_JZ4740, + ID_JZ4770, + ID_JZ4780, +}; + +struct ingenic_chip_info { + unsigned int num_chips; + + const struct group_desc *groups; + unsigned int num_groups; + + const struct function_desc *functions; + unsigned int num_functions; + + const u32 *pull_ups, *pull_downs; +}; + +struct ingenic_pinctrl { + struct device *dev; + struct regmap *map; + struct pinctrl_dev *pctl; + struct pinctrl_pin_desc *pdesc; + enum jz_version version; + + const struct ingenic_chip_info *info; +}; + +static const u32 jz4740_pull_ups[4] = { + 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff, +}; + +static const u32 jz4740_pull_downs[4] = { + 0x00000000, 0x00000000, 0x00000000, 0x00000000, +}; + +static int jz4740_mmc_1bit_pins[] = { 0x69, 0x68, 0x6a, }; +static int jz4740_mmc_4bit_pins[] = { 0x6b, 0x6c, 0x6d, }; +static int jz4740_uart0_data_pins[] = { 0x7a, 0x79, }; +static int jz4740_uart0_hwflow_pins[] = { 0x7e, 0x7f, }; +static int jz4740_uart1_data_pins[] = { 0x7e, 0x7f, }; +static int jz4740_lcd_8bit_pins[] = { + 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x52, 0x53, 0x54, +}; +static int jz4740_lcd_16bit_pins[] = { + 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x55, +}; +static int jz4740_lcd_18bit_pins[] = { 0x50, 0x51, }; +static int jz4740_lcd_18bit_tft_pins[] = { 0x56, 0x57, 0x31, 0x32, }; +static int jz4740_nand_cs1_pins[] = { 0x39, }; +static int jz4740_nand_cs2_pins[] = { 0x3a, }; +static int jz4740_nand_cs3_pins[] = { 0x3b, }; +static int jz4740_nand_cs4_pins[] = { 0x3c, }; +static int jz4740_pwm_pwm0_pins[] = { 0x77, }; +static int jz4740_pwm_pwm1_pins[] = { 0x78, }; +static int jz4740_pwm_pwm2_pins[] = { 0x79, }; +static int jz4740_pwm_pwm3_pins[] = { 0x7a, }; +static int jz4740_pwm_pwm4_pins[] = { 0x7b, }; +static int jz4740_pwm_pwm5_pins[] = { 0x7c, }; +static int jz4740_pwm_pwm6_pins[] = { 0x7e, }; +static int jz4740_pwm_pwm7_pins[] = { 0x7f, }; + +static int jz4740_mmc_1bit_funcs[] = { 0, 0, 0, }; +static int jz4740_mmc_4bit_funcs[] = { 0, 0, 0, }; +static int jz4740_uart0_data_funcs[] = { 1, 1, }; +static int jz4740_uart0_hwflow_funcs[] = { 1, 1, }; +static int jz4740_uart1_data_funcs[] = { 2, 2, }; +static int jz4740_lcd_8bit_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; +static int jz4740_lcd_16bit_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, }; +static int jz4740_lcd_18bit_funcs[] = { 0, 0, }; +static int jz4740_lcd_18bit_tft_funcs[] = { 0, 0, 0, 0, }; +static int jz4740_nand_cs1_funcs[] = { 0, }; +static int jz4740_nand_cs2_funcs[] = { 0, }; +static int jz4740_nand_cs3_funcs[] = { 0, }; +static int jz4740_nand_cs4_funcs[] = { 0, }; +static int jz4740_pwm_pwm0_funcs[] = { 0, }; +static int jz4740_pwm_pwm1_funcs[] = { 0, }; +static int jz4740_pwm_pwm2_funcs[] = { 0, }; +static int jz4740_pwm_pwm3_funcs[] = { 0, }; +static int jz4740_pwm_pwm4_funcs[] = { 0, }; +static int jz4740_pwm_pwm5_funcs[] = { 0, }; +static int jz4740_pwm_pwm6_funcs[] = { 0, }; +static int jz4740_pwm_pwm7_funcs[] = { 0, }; + +#define INGENIC_PIN_GROUP(name, id) \ + { \ + name, \ + id##_pins, \ + ARRAY_SIZE(id##_pins), \ + id##_funcs, \ + } + +static const struct group_desc jz4740_groups[] = { + INGENIC_PIN_GROUP("mmc-1bit", jz4740_mmc_1bit), + INGENIC_PIN_GROUP("mmc-4bit", jz4740_mmc_4bit), + INGENIC_PIN_GROUP("uart0-data", jz4740_uart0_data), + INGENIC_PIN_GROUP("uart0-hwflow", jz4740_uart0_hwflow), + INGENIC_PIN_GROUP("uart1-data", jz4740_uart1_data), + INGENIC_PIN_GROUP("lcd-8bit", jz4740_lcd_8bit), + INGENIC_PIN_GROUP("lcd-16bit", jz4740_lcd_16bit), + INGENIC_PIN_GROUP("lcd-18bit", jz4740_lcd_18bit), + INGENIC_PIN_GROUP("lcd-18bit-tft", jz4740_lcd_18bit_tft), + { "lcd-no-pins", }, + INGENIC_PIN_GROUP("nand-cs1", jz4740_nand_cs1), + INGENIC_PIN_GROUP("nand-cs2", jz4740_nand_cs2), + INGENIC_PIN_GROUP("nand-cs3", jz4740_nand_cs3), + INGENIC_PIN_GROUP("nand-cs4", jz4740_nand_cs4), + INGENIC_PIN_GROUP("pwm0", jz4740_pwm_pwm0), + INGENIC_PIN_GROUP("pwm1", jz4740_pwm_pwm1), + INGENIC_PIN_GROUP("pwm2", jz4740_pwm_pwm2), + INGENIC_PIN_GROUP("pwm3", jz4740_pwm_pwm3), + INGENIC_PIN_GROUP("pwm4", jz4740_pwm_pwm4), + INGENIC_PIN_GROUP("pwm5", jz4740_pwm_pwm5), + INGENIC_PIN_GROUP("pwm6", jz4740_pwm_pwm6), + INGENIC_PIN_GROUP("pwm7", jz4740_pwm_pwm7), +}; + +static const char *jz4740_mmc_groups[] = { "mmc-1bit", "mmc-4bit", }; +static const char *jz4740_uart0_groups[] = { "uart0-data", "uart0-hwflow", }; +static const char *jz4740_uart1_groups[] = { "uart1-data", }; +static const char *jz4740_lcd_groups[] = { + "lcd-8bit", "lcd-16bit", "lcd-18bit", "lcd-18bit-tft", "lcd-no-pins", +}; +static const char *jz4740_nand_groups[] = { + "nand-cs1", "nand-cs2", "nand-cs3", "nand-cs4", +}; +static const char *jz4740_pwm0_groups[] = { "pwm0", }; +static const char *jz4740_pwm1_groups[] = { "pwm1", }; +static const char *jz4740_pwm2_groups[] = { "pwm2", }; +static const char *jz4740_pwm3_groups[] = { "pwm3", }; +static const char *jz4740_pwm4_groups[] = { "pwm4", }; +static const char *jz4740_pwm5_groups[] = { "pwm5", }; +static const char *jz4740_pwm6_groups[] = { "pwm6", }; +static const char *jz4740_pwm7_groups[] = { "pwm7", }; + +static const struct function_desc jz4740_functions[] = { + { "mmc", jz4740_mmc_groups, ARRAY_SIZE(jz4740_mmc_groups), }, + { "uart0", jz4740_uart0_groups, ARRAY_SIZE(jz4740_uart0_groups), }, + { "uart1", jz4740_uart1_groups, ARRAY_SIZE(jz4740_uart1_groups), }, + { "lcd", jz4740_lcd_groups, ARRAY_SIZE(jz4740_lcd_groups), }, + { "nand", jz4740_nand_groups, ARRAY_SIZE(jz4740_nand_groups), }, + { "pwm0", jz4740_pwm0_groups, ARRAY_SIZE(jz4740_pwm0_groups), }, + { "pwm1", jz4740_pwm1_groups, ARRAY_SIZE(jz4740_pwm1_groups), }, + { "pwm2", jz4740_pwm2_groups, ARRAY_SIZE(jz4740_pwm2_groups), }, + { "pwm3", jz4740_pwm3_groups, ARRAY_SIZE(jz4740_pwm3_groups), }, + { "pwm4", jz4740_pwm4_groups, ARRAY_SIZE(jz4740_pwm4_groups), }, + { "pwm5", jz4740_pwm5_groups, ARRAY_SIZE(jz4740_pwm5_groups), }, + { "pwm6", jz4740_pwm6_groups, ARRAY_SIZE(jz4740_pwm6_groups), }, + { "pwm7", jz4740_pwm7_groups, ARRAY_SIZE(jz4740_pwm7_groups), }, +}; + +static const struct ingenic_chip_info jz4740_chip_info = { + .num_chips = 4, + .groups = jz4740_groups, + .num_groups = ARRAY_SIZE(jz4740_groups), + .functions = jz4740_functions, + .num_functions = ARRAY_SIZE(jz4740_functions), + .pull_ups = jz4740_pull_ups, + .pull_downs = jz4740_pull_downs, +}; + +static const u32 jz4770_pull_ups[6] = { + 0x3fffffff, 0xfff0030c, 0xffffffff, 0xffff4fff, 0xfffffb7c, 0xffa7f00f, +}; + +static const u32 jz4770_pull_downs[6] = { + 0x00000000, 0x000f0c03, 0x00000000, 0x0000b000, 0x00000483, 0x00580ff0, +}; + +static int jz4770_uart0_data_pins[] = { 0xa0, 0xa3, }; +static int jz4770_uart0_hwflow_pins[] = { 0xa1, 0xa2, }; +static int jz4770_uart1_data_pins[] = { 0x7a, 0x7c, }; +static int jz4770_uart1_hwflow_pins[] = { 0x7b, 0x7d, }; +static int jz4770_uart2_data_pins[] = { 0x66, 0x67, }; +static int jz4770_uart2_hwflow_pins[] = { 0x65, 0x64, }; +static int jz4770_uart3_data_pins[] = { 0x6c, 0x85, }; +static int jz4770_uart3_hwflow_pins[] = { 0x88, 0x89, }; +static int jz4770_uart4_data_pins[] = { 0x54, 0x4a, }; +static int jz4770_mmc0_8bit_a_pins[] = { 0x04, 0x05, 0x06, 0x07, 0x18, }; +static int jz4770_mmc0_4bit_a_pins[] = { 0x15, 0x16, 0x17, }; +static int jz4770_mmc0_1bit_a_pins[] = { 0x12, 0x13, 0x14, }; +static int jz4770_mmc0_4bit_e_pins[] = { 0x95, 0x96, 0x97, }; +static int jz4770_mmc0_1bit_e_pins[] = { 0x9c, 0x9d, 0x94, }; +static int jz4770_mmc1_4bit_d_pins[] = { 0x75, 0x76, 0x77, }; +static int jz4770_mmc1_1bit_d_pins[] = { 0x78, 0x79, 0x74, }; +static int jz4770_mmc1_4bit_e_pins[] = { 0x95, 0x96, 0x97, }; +static int jz4770_mmc1_1bit_e_pins[] = { 0x9c, 0x9d, 0x94, }; +static int jz4770_nemc_data_pins[] = { + 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, +}; +static int jz4770_nemc_cle_ale_pins[] = { 0x20, 0x21, }; +static int jz4770_nemc_addr_pins[] = { 0x22, 0x23, 0x24, 0x25, }; +static int jz4770_nemc_rd_we_pins[] = { 0x10, 0x11, }; +static int jz4770_nemc_frd_fwe_pins[] = { 0x12, 0x13, }; +static int jz4770_nemc_cs1_pins[] = { 0x15, }; +static int jz4770_nemc_cs2_pins[] = { 0x16, }; +static int jz4770_nemc_cs3_pins[] = { 0x17, }; +static int jz4770_nemc_cs4_pins[] = { 0x18, }; +static int jz4770_nemc_cs5_pins[] = { 0x19, }; +static int jz4770_nemc_cs6_pins[] = { 0x1a, }; +static int jz4770_i2c0_pins[] = { 0x6e, 0x6f, }; +static int jz4770_i2c1_pins[] = { 0x8e, 0x8f, }; +static int jz4770_i2c2_pins[] = { 0xb0, 0xb1, }; +static int jz4770_i2c3_pins[] = { 0x6a, 0x6b, }; +static int jz4770_i2c4_e_pins[] = { 0x8c, 0x8d, }; +static int jz4770_i2c4_f_pins[] = { 0xb9, 0xb8, }; +static int jz4770_cim_pins[] = { + 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, +}; +static int jz4770_lcd_32bit_pins[] = { + 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, + 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, + 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, + 0x58, 0x59, 0x51, +}; +static int jz4770_pwm_pwm0_pins[] = { 0x80, }; +static int jz4770_pwm_pwm1_pins[] = { 0x81, }; +static int jz4770_pwm_pwm2_pins[] = { 0x82, }; +static int jz4770_pwm_pwm3_pins[] = { 0x83, }; +static int jz4770_pwm_pwm4_pins[] = { 0x84, }; +static int jz4770_pwm_pwm5_pins[] = { 0x85, }; +static int jz4770_pwm_pwm6_pins[] = { 0x6a, }; +static int jz4770_pwm_pwm7_pins[] = { 0x6b, }; + +static int jz4770_uart0_data_funcs[] = { 0, 0, }; +static int jz4770_uart0_hwflow_funcs[] = { 0, 0, }; +static int jz4770_uart1_data_funcs[] = { 0, 0, }; +static int jz4770_uart1_hwflow_funcs[] = { 0, 0, }; +static int jz4770_uart2_data_funcs[] = { 1, 1, }; +static int jz4770_uart2_hwflow_funcs[] = { 1, 1, }; +static int jz4770_uart3_data_funcs[] = { 0, 1, }; +static int jz4770_uart3_hwflow_funcs[] = { 0, 0, }; +static int jz4770_uart4_data_funcs[] = { 2, 2, }; +static int jz4770_mmc0_8bit_a_funcs[] = { 1, 1, 1, 1, 1, }; +static int jz4770_mmc0_4bit_a_funcs[] = { 1, 1, 1, }; +static int jz4770_mmc0_1bit_a_funcs[] = { 1, 1, 0, }; +static int jz4770_mmc0_4bit_e_funcs[] = { 0, 0, 0, }; +static int jz4770_mmc0_1bit_e_funcs[] = { 0, 0, 0, }; +static int jz4770_mmc1_4bit_d_funcs[] = { 0, 0, 0, }; +static int jz4770_mmc1_1bit_d_funcs[] = { 0, 0, 0, }; +static int jz4770_mmc1_4bit_e_funcs[] = { 1, 1, 1, }; +static int jz4770_mmc1_1bit_e_funcs[] = { 1, 1, 1, }; +static int jz4770_nemc_data_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, }; +static int jz4770_nemc_cle_ale_funcs[] = { 0, 0, }; +static int jz4770_nemc_addr_funcs[] = { 0, 0, 0, 0, }; +static int jz4770_nemc_rd_we_funcs[] = { 0, 0, }; +static int jz4770_nemc_frd_fwe_funcs[] = { 0, 0, }; +static int jz4770_nemc_cs1_funcs[] = { 0, }; +static int jz4770_nemc_cs2_funcs[] = { 0, }; +static int jz4770_nemc_cs3_funcs[] = { 0, }; +static int jz4770_nemc_cs4_funcs[] = { 0, }; +static int jz4770_nemc_cs5_funcs[] = { 0, }; +static int jz4770_nemc_cs6_funcs[] = { 0, }; +static int jz4770_i2c0_funcs[] = { 0, 0, }; +static int jz4770_i2c1_funcs[] = { 0, 0, }; +static int jz4770_i2c2_funcs[] = { 2, 2, }; +static int jz4770_i2c3_funcs[] = { 1, 1, }; +static int jz4770_i2c4_e_funcs[] = { 1, 1, }; +static int jz4770_i2c4_f_funcs[] = { 1, 1, }; +static int jz4770_cim_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, }; +static int jz4770_lcd_32bit_funcs[] = { + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, +}; +static int jz4770_pwm_pwm0_funcs[] = { 0, }; +static int jz4770_pwm_pwm1_funcs[] = { 0, }; +static int jz4770_pwm_pwm2_funcs[] = { 0, }; +static int jz4770_pwm_pwm3_funcs[] = { 0, }; +static int jz4770_pwm_pwm4_funcs[] = { 0, }; +static int jz4770_pwm_pwm5_funcs[] = { 0, }; +static int jz4770_pwm_pwm6_funcs[] = { 0, }; +static int jz4770_pwm_pwm7_funcs[] = { 0, }; + +static const struct group_desc jz4770_groups[] = { + INGENIC_PIN_GROUP("uart0-data", jz4770_uart0_data), + INGENIC_PIN_GROUP("uart0-hwflow", jz4770_uart0_hwflow), + INGENIC_PIN_GROUP("uart1-data", jz4770_uart1_data), + INGENIC_PIN_GROUP("uart1-hwflow", jz4770_uart1_hwflow), + INGENIC_PIN_GROUP("uart2-data", jz4770_uart2_data), + INGENIC_PIN_GROUP("uart2-hwflow", jz4770_uart2_hwflow), + INGENIC_PIN_GROUP("uart3-data", jz4770_uart3_data), + INGENIC_PIN_GROUP("uart3-hwflow", jz4770_uart3_hwflow), + INGENIC_PIN_GROUP("uart4-data", jz4770_uart4_data), + INGENIC_PIN_GROUP("mmc0-8bit-a", jz4770_mmc0_8bit_a), + INGENIC_PIN_GROUP("mmc0-4bit-a", jz4770_mmc0_4bit_a), + INGENIC_PIN_GROUP("mmc0-1bit-a", jz4770_mmc0_1bit_a), + INGENIC_PIN_GROUP("mmc0-4bit-e", jz4770_mmc0_4bit_e), + INGENIC_PIN_GROUP("mmc0-1bit-e", jz4770_mmc0_1bit_e), + INGENIC_PIN_GROUP("mmc1-4bit-d", jz4770_mmc1_4bit_d), + INGENIC_PIN_GROUP("mmc1-1bit-d", jz4770_mmc1_1bit_d), + INGENIC_PIN_GROUP("mmc1-4bit-e", jz4770_mmc1_4bit_e), + INGENIC_PIN_GROUP("mmc1-1bit-e", jz4770_mmc1_1bit_e), + INGENIC_PIN_GROUP("nemc-data", jz4770_nemc_data), + INGENIC_PIN_GROUP("nemc-cle-ale", jz4770_nemc_cle_ale), + INGENIC_PIN_GROUP("nemc-addr", jz4770_nemc_addr), + INGENIC_PIN_GROUP("nemc-rd-we", jz4770_nemc_rd_we), + INGENIC_PIN_GROUP("nemc-frd-fwe", jz4770_nemc_frd_fwe), + INGENIC_PIN_GROUP("nemc-cs1", jz4770_nemc_cs1), + INGENIC_PIN_GROUP("nemc-cs2", jz4770_nemc_cs2), + INGENIC_PIN_GROUP("nemc-cs3", jz4770_nemc_cs3), + INGENIC_PIN_GROUP("nemc-cs4", jz4770_nemc_cs4), + INGENIC_PIN_GROUP("nemc-cs5", jz4770_nemc_cs5), + INGENIC_PIN_GROUP("nemc-cs6", jz4770_nemc_cs6), + INGENIC_PIN_GROUP("i2c0-data", jz4770_i2c0), + INGENIC_PIN_GROUP("i2c1-data", jz4770_i2c1), + INGENIC_PIN_GROUP("i2c2-data", jz4770_i2c2), + INGENIC_PIN_GROUP("i2c3-data", jz4770_i2c3), + INGENIC_PIN_GROUP("i2c4-data-e", jz4770_i2c4_e), + INGENIC_PIN_GROUP("i2c4-data-f", jz4770_i2c4_f), + INGENIC_PIN_GROUP("cim-data", jz4770_cim), + INGENIC_PIN_GROUP("lcd-32bit", jz4770_lcd_32bit), + { "lcd-no-pins", }, + INGENIC_PIN_GROUP("pwm0", jz4770_pwm_pwm0), + INGENIC_PIN_GROUP("pwm1", jz4770_pwm_pwm1), + INGENIC_PIN_GROUP("pwm2", jz4770_pwm_pwm2), + INGENIC_PIN_GROUP("pwm3", jz4770_pwm_pwm3), + INGENIC_PIN_GROUP("pwm4", jz4770_pwm_pwm4), + INGENIC_PIN_GROUP("pwm5", jz4770_pwm_pwm5), + INGENIC_PIN_GROUP("pwm6", jz4770_pwm_pwm6), + INGENIC_PIN_GROUP("pwm7", jz4770_pwm_pwm7), +}; + +static const char *jz4770_uart0_groups[] = { "uart0-data", "uart0-hwflow", }; +static const char *jz4770_uart1_groups[] = { "uart1-data", "uart1-hwflow", }; +static const char *jz4770_uart2_groups[] = { "uart2-data", "uart2-hwflow", }; +static const char *jz4770_uart3_groups[] = { "uart3-data", "uart3-hwflow", }; +static const char *jz4770_uart4_groups[] = { "uart4-data", }; +static const char *jz4770_mmc0_groups[] = { + "mmc0-8bit-a", "mmc0-4bit-a", "mmc0-1bit-a", + "mmc0-1bit-e", "mmc0-4bit-e", +}; +static const char *jz4770_mmc1_groups[] = { + "mmc1-1bit-d", "mmc1-4bit-d", "mmc1-1bit-e", "mmc1-4bit-e", +}; +static const char *jz4770_nemc_groups[] = { + "nemc-data", "nemc-cle-ale", "nemc-addr", "nemc-rd-we", "nemc-frd-fwe", +}; +static const char *jz4770_cs1_groups[] = { "nemc-cs1", }; +static const char *jz4770_cs6_groups[] = { "nemc-cs6", }; +static const char *jz4770_i2c0_groups[] = { "i2c0-data", }; +static const char *jz4770_i2c1_groups[] = { "i2c1-data", }; +static const char *jz4770_i2c2_groups[] = { "i2c2-data", }; +static const char *jz4770_i2c3_groups[] = { "i2c3-data", }; +static const char *jz4770_i2c4_groups[] = { "i2c4-data-e", "i2c4-data-f", }; +static const char *jz4770_cim_groups[] = { "cim-data", }; +static const char *jz4770_lcd_groups[] = { "lcd-32bit", "lcd-no-pins", }; +static const char *jz4770_pwm0_groups[] = { "pwm0", }; +static const char *jz4770_pwm1_groups[] = { "pwm1", }; +static const char *jz4770_pwm2_groups[] = { "pwm2", }; +static const char *jz4770_pwm3_groups[] = { "pwm3", }; +static const char *jz4770_pwm4_groups[] = { "pwm4", }; +static const char *jz4770_pwm5_groups[] = { "pwm5", }; +static const char *jz4770_pwm6_groups[] = { "pwm6", }; +static const char *jz4770_pwm7_groups[] = { "pwm7", }; + +static const struct function_desc jz4770_functions[] = { + { "uart0", jz4770_uart0_groups, ARRAY_SIZE(jz4770_uart0_groups), }, + { "uart1", jz4770_uart1_groups, ARRAY_SIZE(jz4770_uart1_groups), }, + { "uart2", jz4770_uart2_groups, ARRAY_SIZE(jz4770_uart2_groups), }, + { "uart3", jz4770_uart3_groups, ARRAY_SIZE(jz4770_uart3_groups), }, + { "uart4", jz4770_uart4_groups, ARRAY_SIZE(jz4770_uart4_groups), }, + { "mmc0", jz4770_mmc0_groups, ARRAY_SIZE(jz4770_mmc0_groups), }, + { "mmc1", jz4770_mmc1_groups, ARRAY_SIZE(jz4770_mmc1_groups), }, + { "nemc", jz4770_nemc_groups, ARRAY_SIZE(jz4770_nemc_groups), }, + { "nemc-cs1", jz4770_cs1_groups, ARRAY_SIZE(jz4770_cs1_groups), }, + { "nemc-cs6", jz4770_cs6_groups, ARRAY_SIZE(jz4770_cs6_groups), }, + { "i2c0", jz4770_i2c0_groups, ARRAY_SIZE(jz4770_i2c0_groups), }, + { "i2c1", jz4770_i2c1_groups, ARRAY_SIZE(jz4770_i2c1_groups), }, + { "i2c2", jz4770_i2c2_groups, ARRAY_SIZE(jz4770_i2c2_groups), }, + { "i2c3", jz4770_i2c3_groups, ARRAY_SIZE(jz4770_i2c3_groups), }, + { "i2c4", jz4770_i2c4_groups, ARRAY_SIZE(jz4770_i2c4_groups), }, + { "cim", jz4770_cim_groups, ARRAY_SIZE(jz4770_cim_groups), }, + { "lcd", jz4770_lcd_groups, ARRAY_SIZE(jz4770_lcd_groups), }, + { "pwm0", jz4770_pwm0_groups, ARRAY_SIZE(jz4770_pwm0_groups), }, + { "pwm1", jz4770_pwm1_groups, ARRAY_SIZE(jz4770_pwm1_groups), }, + { "pwm2", jz4770_pwm2_groups, ARRAY_SIZE(jz4770_pwm2_groups), }, + { "pwm3", jz4770_pwm3_groups, ARRAY_SIZE(jz4770_pwm3_groups), }, + { "pwm4", jz4770_pwm4_groups, ARRAY_SIZE(jz4770_pwm4_groups), }, + { "pwm5", jz4770_pwm5_groups, ARRAY_SIZE(jz4770_pwm5_groups), }, + { "pwm6", jz4770_pwm6_groups, ARRAY_SIZE(jz4770_pwm6_groups), }, + { "pwm7", jz4770_pwm7_groups, ARRAY_SIZE(jz4770_pwm7_groups), }, +}; + +static const struct ingenic_chip_info jz4770_chip_info = { + .num_chips = 6, + .groups = jz4770_groups, + .num_groups = ARRAY_SIZE(jz4770_groups), + .functions = jz4770_functions, + .num_functions = ARRAY_SIZE(jz4770_functions), + .pull_ups = jz4770_pull_ups, + .pull_downs = jz4770_pull_downs, +}; + +static inline void ingenic_config_pin(struct ingenic_pinctrl *jzpc, + unsigned int pin, u8 reg, bool set) +{ + unsigned int idx = pin % PINS_PER_GPIO_CHIP; + unsigned int offt = pin / PINS_PER_GPIO_CHIP; + + regmap_write(jzpc->map, offt * 0x100 + + (set ? REG_SET(reg) : REG_CLEAR(reg)), BIT(idx)); +} + +static inline bool ingenic_get_pin_config(struct ingenic_pinctrl *jzpc, + unsigned int pin, u8 reg) +{ + unsigned int idx = pin % PINS_PER_GPIO_CHIP; + unsigned int offt = pin / PINS_PER_GPIO_CHIP; + unsigned int val; + + regmap_read(jzpc->map, offt * 0x100 + reg, &val); + + return val & BIT(idx); +} + +static struct pinctrl_ops ingenic_pctlops = { + .get_groups_count = pinctrl_generic_get_group_count, + .get_group_name = pinctrl_generic_get_group_name, + .get_group_pins = pinctrl_generic_get_group_pins, + .dt_node_to_map = pinconf_generic_dt_node_to_map_all, + .dt_free_map = pinconf_generic_dt_free_map, +}; + +static int ingenic_pinmux_set_pin_fn(struct ingenic_pinctrl *jzpc, + int pin, int func) +{ + unsigned int idx = pin % PINS_PER_GPIO_CHIP; + unsigned int offt = pin / PINS_PER_GPIO_CHIP; + + dev_dbg(jzpc->dev, "set pin P%c%u to function %u\n", + 'A' + offt, idx, func); + + if (jzpc->version >= ID_JZ4770) { + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false); + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_MSK, false); + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, func & 0x2); + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT0, func & 0x1); + } else { + ingenic_config_pin(jzpc, pin, JZ4740_GPIO_FUNC, true); + ingenic_config_pin(jzpc, pin, JZ4740_GPIO_TRIG, func & 0x2); + ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, func > 0); + } + + return 0; +} + +static int ingenic_pinmux_set_mux(struct pinctrl_dev *pctldev, + unsigned int selector, unsigned int group) +{ + struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); + struct function_desc *func; + struct group_desc *grp; + unsigned int i; + + func = pinmux_generic_get_function(pctldev, selector); + if (!func) + return -EINVAL; + + grp = pinctrl_generic_get_group(pctldev, group); + if (!grp) + return -EINVAL; + + dev_dbg(pctldev->dev, "enable function %s group %s\n", + func->name, grp->name); + + for (i = 0; i < grp->num_pins; i++) { + int *pin_modes = grp->data; + + ingenic_pinmux_set_pin_fn(jzpc, grp->pins[i], pin_modes[i]); + } + + return 0; +} + +static int ingenic_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned int pin, bool input) +{ + struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); + unsigned int idx = pin % PINS_PER_GPIO_CHIP; + unsigned int offt = pin / PINS_PER_GPIO_CHIP; + + dev_dbg(pctldev->dev, "set pin P%c%u to %sput\n", + 'A' + offt, idx, input ? "in" : "out"); + + if (jzpc->version >= ID_JZ4770) { + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_INT, false); + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_MSK, true); + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PAT1, input); + } else { + ingenic_config_pin(jzpc, pin, JZ4740_GPIO_SELECT, false); + ingenic_config_pin(jzpc, pin, JZ4740_GPIO_DIR, input); + ingenic_config_pin(jzpc, pin, JZ4740_GPIO_FUNC, false); + } + + return 0; +} + +static struct pinmux_ops ingenic_pmxops = { + .get_functions_count = pinmux_generic_get_function_count, + .get_function_name = pinmux_generic_get_function_name, + .get_function_groups = pinmux_generic_get_function_groups, + .set_mux = ingenic_pinmux_set_mux, + .gpio_set_direction = ingenic_pinmux_gpio_set_direction, +}; + +static int ingenic_pinconf_get(struct pinctrl_dev *pctldev, + unsigned int pin, unsigned long *config) +{ + struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); + enum pin_config_param param = pinconf_to_config_param(*config); + unsigned int idx = pin % PINS_PER_GPIO_CHIP; + unsigned int offt = pin / PINS_PER_GPIO_CHIP; + bool pull; + + if (jzpc->version >= ID_JZ4770) + pull = !ingenic_get_pin_config(jzpc, pin, JZ4770_GPIO_PEN); + else + pull = !ingenic_get_pin_config(jzpc, pin, JZ4740_GPIO_PULL_DIS); + + switch (param) { + case PIN_CONFIG_BIAS_DISABLE: + if (pull) + return -EINVAL; + break; + + case PIN_CONFIG_BIAS_PULL_UP: + if (!pull || !(jzpc->info->pull_ups[offt] & BIT(idx))) + return -EINVAL; + break; + + case PIN_CONFIG_BIAS_PULL_DOWN: + if (!pull || !(jzpc->info->pull_downs[offt] & BIT(idx))) + return -EINVAL; + break; + + default: + return -ENOTSUPP; + } + + *config = pinconf_to_config_packed(param, 1); + return 0; +} + +static void ingenic_set_bias(struct ingenic_pinctrl *jzpc, + unsigned int pin, bool enabled) +{ + if (jzpc->version >= ID_JZ4770) + ingenic_config_pin(jzpc, pin, JZ4770_GPIO_PEN, !enabled); + else + ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !enabled); +} + +static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin, + unsigned long *configs, unsigned int num_configs) +{ + struct ingenic_pinctrl *jzpc = pinctrl_dev_get_drvdata(pctldev); + unsigned int idx = pin % PINS_PER_GPIO_CHIP; + unsigned int offt = pin / PINS_PER_GPIO_CHIP; + unsigned int cfg; + + for (cfg = 0; cfg < num_configs; cfg++) { + switch (pinconf_to_config_param(configs[cfg])) { + case PIN_CONFIG_BIAS_DISABLE: + case PIN_CONFIG_BIAS_PULL_UP: + case PIN_CONFIG_BIAS_PULL_DOWN: + continue; + default: + return -ENOTSUPP; + } + } + + for (cfg = 0; cfg < num_configs; cfg++) { + switch (pinconf_to_config_param(configs[cfg])) { + case PIN_CONFIG_BIAS_DISABLE: + dev_dbg(jzpc->dev, "disable pull-over for pin P%c%u\n", + 'A' + offt, idx); + ingenic_set_bias(jzpc, pin, false); + break; + + case PIN_CONFIG_BIAS_PULL_UP: + if (!(jzpc->info->pull_ups[offt] & BIT(idx))) + return -EINVAL; + dev_dbg(jzpc->dev, "set pull-up for pin P%c%u\n", + 'A' + offt, idx); + ingenic_set_bias(jzpc, pin, true); + break; + + case PIN_CONFIG_BIAS_PULL_DOWN: + if (!(jzpc->info->pull_downs[offt] & BIT(idx))) + return -EINVAL; + dev_dbg(jzpc->dev, "set pull-down for pin P%c%u\n", + 'A' + offt, idx); + ingenic_set_bias(jzpc, pin, true); + break; + + default: + unreachable(); + } + } + + return 0; +} + +static int ingenic_pinconf_group_get(struct pinctrl_dev *pctldev, + unsigned int group, unsigned long *config) +{ + const unsigned int *pins; + unsigned int i, npins, old = 0; + int ret; + + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); + if (ret) + return ret; + + for (i = 0; i < npins; i++) { + if (ingenic_pinconf_get(pctldev, pins[i], config)) + return -ENOTSUPP; + + /* configs do not match between two pins */ + if (i && (old != *config)) + return -ENOTSUPP; + + old = *config; + } + + return 0; +} + +static int ingenic_pinconf_group_set(struct pinctrl_dev *pctldev, + unsigned int group, unsigned long *configs, + unsigned int num_configs) +{ + const unsigned int *pins; + unsigned int i, npins; + int ret; + + ret = pinctrl_generic_get_group_pins(pctldev, group, &pins, &npins); + if (ret) + return ret; + + for (i = 0; i < npins; i++) { + ret = ingenic_pinconf_set(pctldev, + pins[i], configs, num_configs); + if (ret) + return ret; + } + + return 0; +} + +static struct pinconf_ops ingenic_confops = { + .is_generic = true, + .pin_config_get = ingenic_pinconf_get, + .pin_config_set = ingenic_pinconf_set, + .pin_config_group_get = ingenic_pinconf_group_get, + .pin_config_group_set = ingenic_pinconf_group_set, +}; + +static const struct regmap_config ingenic_pinctrl_regmap_config = { + .reg_bits = 32, + .val_bits = 32, + .reg_stride = 4, +}; + +static const struct of_device_id ingenic_pinctrl_of_match[] = { + { .compatible = "ingenic,jz4740-pinctrl", .data = (void *) ID_JZ4740 }, + { .compatible = "ingenic,jz4770-pinctrl", .data = (void *) ID_JZ4770 }, + { .compatible = "ingenic,jz4780-pinctrl", .data = (void *) ID_JZ4780 }, + {}, +}; + +int ingenic_pinctrl_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct ingenic_pinctrl *jzpc; + struct pinctrl_desc *pctl_desc; + void __iomem *base; + const struct platform_device_id *id = platform_get_device_id(pdev); + const struct of_device_id *of_id = of_match_device( + ingenic_pinctrl_of_match, dev); + const struct ingenic_chip_info *chip_info; + unsigned int i; + int err; + + jzpc = devm_kzalloc(dev, sizeof(*jzpc), GFP_KERNEL); + if (!jzpc) + return -ENOMEM; + + base = devm_ioremap_resource(dev, + platform_get_resource(pdev, IORESOURCE_MEM, 0)); + if (IS_ERR(base)) { + dev_err(dev, "Failed to ioremap registers\n"); + return PTR_ERR(base); + } + + jzpc->map = devm_regmap_init_mmio(dev, base, + &ingenic_pinctrl_regmap_config); + if (IS_ERR(jzpc->map)) { + dev_err(dev, "Failed to create regmap\n"); + return PTR_ERR(jzpc->map); + } + + jzpc->dev = dev; + + if (of_id) + jzpc->version = (enum jz_version)of_id->data; + else + jzpc->version = (enum jz_version)id->driver_data; + + if (jzpc->version >= ID_JZ4770) + chip_info = &jz4770_chip_info; + else + chip_info = &jz4740_chip_info; + jzpc->info = chip_info; + + pctl_desc = devm_kzalloc(&pdev->dev, sizeof(*pctl_desc), GFP_KERNEL); + if (!pctl_desc) + return -ENOMEM; + + /* fill in pinctrl_desc structure */ + pctl_desc->name = dev_name(dev); + pctl_desc->owner = THIS_MODULE; + pctl_desc->pctlops = &ingenic_pctlops; + pctl_desc->pmxops = &ingenic_pmxops; + pctl_desc->confops = &ingenic_confops; + pctl_desc->npins = chip_info->num_chips * PINS_PER_GPIO_CHIP; + pctl_desc->pins = jzpc->pdesc = devm_kzalloc(&pdev->dev, + sizeof(*jzpc->pdesc) * pctl_desc->npins, GFP_KERNEL); + if (!jzpc->pdesc) + return -ENOMEM; + + for (i = 0; i < pctl_desc->npins; i++) { + jzpc->pdesc[i].number = i; + jzpc->pdesc[i].name = kasprintf(GFP_KERNEL, "P%c%d", + 'A' + (i / PINS_PER_GPIO_CHIP), + i % PINS_PER_GPIO_CHIP); + } + + jzpc->pctl = devm_pinctrl_register(dev, pctl_desc, jzpc); + if (!jzpc->pctl) { + dev_err(dev, "Failed to register pinctrl\n"); + return -EINVAL; + } + + for (i = 0; i < chip_info->num_groups; i++) { + const struct group_desc *group = &chip_info->groups[i]; + + err = pinctrl_generic_add_group(jzpc->pctl, group->name, + group->pins, group->num_pins, group->data); + if (err) { + dev_err(dev, "Failed to register group %s\n", + group->name); + return err; + } + } + + for (i = 0; i < chip_info->num_functions; i++) { + const struct function_desc *func = &chip_info->functions[i]; + + err = pinmux_generic_add_function(jzpc->pctl, func->name, + func->group_names, func->num_group_names, + func->data); + if (err) { + dev_err(dev, "Failed to register function %s\n", + func->name); + return err; + } + } + + dev_set_drvdata(dev, jzpc->map); + + if (dev->of_node) { + err = of_platform_populate(dev->of_node, NULL, NULL, dev); + if (err) { + dev_err(dev, "Failed to probe GPIO devices\n"); + return err; + } + } + + return 0; +} + +static const struct platform_device_id ingenic_pinctrl_ids[] = { + { "jz4740-pinctrl", ID_JZ4740 }, + { "jz4770-pinctrl", ID_JZ4770 }, + { "jz4780-pinctrl", ID_JZ4780 }, + {}, +}; + +static struct platform_driver ingenic_pinctrl_driver = { + .driver = { + .name = "pinctrl-ingenic", + .of_match_table = of_match_ptr(ingenic_pinctrl_of_match), + .suppress_bind_attrs = true, + }, + .probe = ingenic_pinctrl_probe, + .id_table = ingenic_pinctrl_ids, +}; + +static int __init ingenic_pinctrl_drv_register(void) +{ + return platform_driver_register(&ingenic_pinctrl_driver); +} +postcore_initcall(ingenic_pinctrl_drv_register); |