Re: [PATCH v5 4/4] pinctrl: Ingenic: Add pinctrl driver for X1830.

From: Paul Cercueil
Date: Mon Nov 25 2019 - 08:54:21 EST

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Hi Zhou,

Le lun., nov. 25, 2019 at 19:44, Zhou Yanjie <zhouyanjie@xxxxxxxx> a écrit :

Add support for probing the pinctrl-ingenic driver on the
X1830 Soc from Ingenic.

Signed-off-by: Zhou Yanjie <zhouyanjie@xxxxxxxx>
---

Notes:
v2:
New patch.

v2->v3:
Add pinctrl drivers for the PWM of X1830.

v3->v4:
1.Use local variables to streamline code.
2.Prevents processors older than X1830 from being
configured in HiZ mode.

v4->v5:
Fix compile-time warnings.
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

drivers/pinctrl/pinctrl-ingenic.c | 345 +++++++++++++++++++++++++++++++++++---
1 file changed, 324 insertions(+), 21 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-ingenic.c b/drivers/pinctrl/pinctrl-ingenic.c
index 1a99715..1b84b7f 100644
--- a/drivers/pinctrl/pinctrl-ingenic.c
+++ b/drivers/pinctrl/pinctrl-ingenic.c
@@ -28,6 +28,10 @@
#define GPIO_PIN 0x00
#define GPIO_MSK 0x20

+#define GPIO_HIZ 0x00
+#define GPIO_PULLUP 0x01
+#define GPIO_PULLDOWN 0x10
+
#define JZ4740_GPIO_DATA 0x10
#define JZ4740_GPIO_PULL_DIS 0x30
#define JZ4740_GPIO_FUNC 0x40
@@ -45,6 +49,11 @@
#define X1000_GPIO_PZ_BASE 0x700
#define X1000_GPIO_PZ_GID2LD 0x7f0

+#define X1830_GPIO_PEL0 0x110
+#define X1830_GPIO_PEL1 0x120
+#define X1830_GPIO_PZ_BASE 0x7000
+#define X1830_GPIO_PZ_GID2LD 0x70f0
+
#define REG_SET(x) ((x) + 0x4)
#define REG_CLEAR(x) ((x) + 0x8)

@@ -60,6 +69,7 @@ enum jz_version {
ID_X1000,
ID_X1000E,
ID_X1500,
+ ID_X1830,
};

struct ingenic_chip_info {
@@ -1394,6 +1404,220 @@ static const struct ingenic_chip_info x1500_chip_info = {
.pull_downs = x1000_pull_downs,
};

+static const u32 x1830_pull_ups[4] = {
+ 0x5fdfffc0, 0xffffefff, 0x1ffffbff, 0x0fcff3fc,
+};
+
+static const u32 x1830_pull_downs[4] = {
+ 0x5fdfffc0, 0xffffefff, 0x1ffffbff, 0x0fcff3fc,
+};
+
+static int x1830_uart0_data_pins[] = { 0x33, 0x36, };
+static int x1830_uart0_hwflow_pins[] = { 0x34, 0x35, };
+static int x1830_uart1_data_pins[] = { 0x38, 0x37, };
+static int x1830_sfc_pins[] = { 0x17, 0x18, 0x1a, 0x19, 0x1b, 0x1c, };
+static int x1830_ssi0_dt_pins[] = { 0x4c, };
+static int x1830_ssi0_dr_pins[] = { 0x4b, };
+static int x1830_ssi0_clk_pins[] = { 0x4f, };
+static int x1830_ssi0_gpc_pins[] = { 0x4d, };
+static int x1830_ssi0_ce0_pins[] = { 0x50, };
+static int x1830_ssi0_ce1_pins[] = { 0x4e, };
+static int x1830_ssi1_dt_c_pins[] = { 0x53, };
+static int x1830_ssi1_dr_c_pins[] = { 0x54, };
+static int x1830_ssi1_clk_c_pins[] = { 0x57, };
+static int x1830_ssi1_gpc_c_pins[] = { 0x55, };
+static int x1830_ssi1_ce0_c_pins[] = { 0x58, };
+static int x1830_ssi1_ce1_c_pins[] = { 0x56, };
+static int x1830_ssi1_dt_d_pins[] = { 0x62, };
+static int x1830_ssi1_dr_d_pins[] = { 0x63, };
+static int x1830_ssi1_clk_d_pins[] = { 0x66, };
+static int x1830_ssi1_gpc_d_pins[] = { 0x64, };
+static int x1830_ssi1_ce0_d_pins[] = { 0x67, };
+static int x1830_ssi1_ce1_d_pins[] = { 0x65, };
+static int x1830_mmc0_1bit_pins[] = { 0x24, 0x25, 0x20, };
+static int x1830_mmc0_4bit_pins[] = { 0x21, 0x22, 0x23, };
+static int x1830_mmc1_1bit_pins[] = { 0x42, 0x43, 0x44, };
+static int x1830_mmc1_4bit_pins[] = { 0x45, 0x46, 0x47, };
+static int x1830_i2c0_pins[] = { 0x0c, 0x0d, };
+static int x1830_i2c1_pins[] = { 0x39, 0x3a, };
+static int x1830_i2c2_pins[] = { 0x5b, 0x5c, };
+static int x1830_pwm_pwm0_b_pins[] = { 0x31, };
+static int x1830_pwm_pwm0_c_pins[] = { 0x4b, };
+static int x1830_pwm_pwm1_b_pins[] = { 0x32, };
+static int x1830_pwm_pwm1_c_pins[] = { 0x4c, };
+static int x1830_pwm_pwm2_c_8_pins[] = { 0x48, };
+static int x1830_pwm_pwm2_c_13_pins[] = { 0x4d, };
+static int x1830_pwm_pwm3_c_9_pins[] = { 0x49, };
+static int x1830_pwm_pwm3_c_14_pins[] = { 0x4e, };
+static int x1830_pwm_pwm4_c_15_pins[] = { 0x4f, };
+static int x1830_pwm_pwm4_c_25_pins[] = { 0x59, };
+static int x1830_pwm_pwm5_c_16_pins[] = { 0x50, };
+static int x1830_pwm_pwm5_c_26_pins[] = { 0x5a, };
+static int x1830_pwm_pwm6_c_17_pins[] = { 0x51, };
+static int x1830_pwm_pwm6_c_27_pins[] = { 0x5b, };
+static int x1830_pwm_pwm7_c_18_pins[] = { 0x52, };
+static int x1830_pwm_pwm7_c_28_pins[] = { 0x5c, };
+static int x1830_mac_pins[] = {
+ 0x29, 0x30, 0x2f, 0x28, 0x2e, 0x2d, 0x2a, 0x2b, 0x26, 0x27,
+};
+
+static int x1830_uart0_data_funcs[] = { 0, 0, };
+static int x1830_uart0_hwflow_funcs[] = { 0, 0, };
+static int x1830_uart1_data_funcs[] = { 0, 0, };
+static int x1830_sfc_funcs[] = { 1, 1, 1, 1, 1, 1, };
+static int x1830_ssi0_dt_funcs[] = { 0, };
+static int x1830_ssi0_dr_funcs[] = { 0, };
+static int x1830_ssi0_clk_funcs[] = { 0, };
+static int x1830_ssi0_gpc_funcs[] = { 0, };
+static int x1830_ssi0_ce0_funcs[] = { 0, };
+static int x1830_ssi0_ce1_funcs[] = { 0, };
+static int x1830_ssi1_dt_c_funcs[] = { 1, };
+static int x1830_ssi1_dr_c_funcs[] = { 1, };
+static int x1830_ssi1_clk_c_funcs[] = { 1, };
+static int x1830_ssi1_gpc_c_funcs[] = { 1, };
+static int x1830_ssi1_ce0_c_funcs[] = { 1, };
+static int x1830_ssi1_ce1_c_funcs[] = { 1, };
+static int x1830_ssi1_dt_d_funcs[] = { 2, };
+static int x1830_ssi1_dr_d_funcs[] = { 2, };
+static int x1830_ssi1_clk_d_funcs[] = { 2, };
+static int x1830_ssi1_gpc_d_funcs[] = { 2, };
+static int x1830_ssi1_ce0_d_funcs[] = { 2, };
+static int x1830_ssi1_ce1_d_funcs[] = { 2, };
+static int x1830_mmc0_1bit_funcs[] = { 0, 0, 0, };
+static int x1830_mmc0_4bit_funcs[] = { 0, 0, 0, };
+static int x1830_mmc1_1bit_funcs[] = { 0, 0, 0, };
+static int x1830_mmc1_4bit_funcs[] = { 0, 0, 0, };
+static int x1830_i2c0_funcs[] = { 1, 1, };
+static int x1830_i2c1_funcs[] = { 0, 0, };
+static int x1830_i2c2_funcs[] = { 1, 1, };
+static int x1830_pwm_pwm0_b_funcs[] = { 0, };
+static int x1830_pwm_pwm0_c_funcs[] = { 1, };
+static int x1830_pwm_pwm1_b_funcs[] = { 0, };
+static int x1830_pwm_pwm1_c_funcs[] = { 1, };
+static int x1830_pwm_pwm2_c_8_funcs[] = { 0, };
+static int x1830_pwm_pwm2_c_13_funcs[] = { 1, };
+static int x1830_pwm_pwm3_c_9_funcs[] = { 0, };
+static int x1830_pwm_pwm3_c_14_funcs[] = { 1, };
+static int x1830_pwm_pwm4_c_15_funcs[] = { 1, };
+static int x1830_pwm_pwm4_c_25_funcs[] = { 0, };
+static int x1830_pwm_pwm5_c_16_funcs[] = { 1, };
+static int x1830_pwm_pwm5_c_26_funcs[] = { 0, };
+static int x1830_pwm_pwm6_c_17_funcs[] = { 1, };
+static int x1830_pwm_pwm6_c_27_funcs[] = { 0, };
+static int x1830_pwm_pwm7_c_18_funcs[] = { 1, };
+static int x1830_pwm_pwm7_c_28_funcs[] = { 0, };
+static int x1830_mac_funcs[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };
+
+static const struct group_desc x1830_groups[] = {
+ INGENIC_PIN_GROUP("uart0-data", x1830_uart0_data),
+ INGENIC_PIN_GROUP("uart0-hwflow", x1830_uart0_hwflow),
+ INGENIC_PIN_GROUP("uart1-data", x1830_uart1_data),
+ INGENIC_PIN_GROUP("sfc", x1830_sfc),
+ INGENIC_PIN_GROUP("ssi0-dt", x1830_ssi0_dt),
+ INGENIC_PIN_GROUP("ssi0-dr", x1830_ssi0_dr),
+ INGENIC_PIN_GROUP("ssi0-clk", x1830_ssi0_clk),
+ INGENIC_PIN_GROUP("ssi0-gpc", x1830_ssi0_gpc),
+ INGENIC_PIN_GROUP("ssi0-ce0", x1830_ssi0_ce0),
+ INGENIC_PIN_GROUP("ssi0-ce1", x1830_ssi0_ce1),
+ INGENIC_PIN_GROUP("ssi1-dt-c", x1830_ssi1_dt_c),
+ INGENIC_PIN_GROUP("ssi1-dr-c", x1830_ssi1_dr_c),
+ INGENIC_PIN_GROUP("ssi1-clk-c", x1830_ssi1_clk_c),
+ INGENIC_PIN_GROUP("ssi1-gpc-c", x1830_ssi1_gpc_c),
+ INGENIC_PIN_GROUP("ssi1-ce0-c", x1830_ssi1_ce0_c),
+ INGENIC_PIN_GROUP("ssi1-ce1-c", x1830_ssi1_ce1_c),
+ INGENIC_PIN_GROUP("ssi1-dt-d", x1830_ssi1_dt_d),
+ INGENIC_PIN_GROUP("ssi1-dr-d", x1830_ssi1_dr_d),
+ INGENIC_PIN_GROUP("ssi1-clk-d", x1830_ssi1_clk_d),
+ INGENIC_PIN_GROUP("ssi1-gpc-d", x1830_ssi1_gpc_d),
+ INGENIC_PIN_GROUP("ssi1-ce0-d", x1830_ssi1_ce0_d),
+ INGENIC_PIN_GROUP("ssi1-ce1-d", x1830_ssi1_ce1_d),
+ INGENIC_PIN_GROUP("mmc0-1bit", x1830_mmc0_1bit),
+ INGENIC_PIN_GROUP("mmc0-4bit", x1830_mmc0_4bit),
+ INGENIC_PIN_GROUP("mmc1-1bit", x1830_mmc1_1bit),
+ INGENIC_PIN_GROUP("mmc1-4bit", x1830_mmc1_4bit),
+ INGENIC_PIN_GROUP("i2c0-data", x1830_i2c0),
+ INGENIC_PIN_GROUP("i2c1-data", x1830_i2c1),
+ INGENIC_PIN_GROUP("i2c2-data", x1830_i2c2),
+ INGENIC_PIN_GROUP("pwm0-b", x1830_pwm_pwm0_b),
+ INGENIC_PIN_GROUP("pwm0-c", x1830_pwm_pwm0_c),
+ INGENIC_PIN_GROUP("pwm1-b", x1830_pwm_pwm1_b),
+ INGENIC_PIN_GROUP("pwm1-c", x1830_pwm_pwm1_c),
+ INGENIC_PIN_GROUP("pwm2-c-8", x1830_pwm_pwm2_c_8),
+ INGENIC_PIN_GROUP("pwm2-c-13", x1830_pwm_pwm2_c_13),
+ INGENIC_PIN_GROUP("pwm3-c-9", x1830_pwm_pwm3_c_9),
+ INGENIC_PIN_GROUP("pwm3-c-14", x1830_pwm_pwm3_c_14),
+ INGENIC_PIN_GROUP("pwm4-c-15", x1830_pwm_pwm4_c_15),
+ INGENIC_PIN_GROUP("pwm4-c-25", x1830_pwm_pwm4_c_25),
+ INGENIC_PIN_GROUP("pwm5-c-16", x1830_pwm_pwm5_c_16),
+ INGENIC_PIN_GROUP("pwm5-c-26", x1830_pwm_pwm5_c_26),
+ INGENIC_PIN_GROUP("pwm6-c-17", x1830_pwm_pwm6_c_17),
+ INGENIC_PIN_GROUP("pwm6-c-27", x1830_pwm_pwm6_c_27),
+ INGENIC_PIN_GROUP("pwm7-c-18", x1830_pwm_pwm7_c_18),
+ INGENIC_PIN_GROUP("pwm7-c-28", x1830_pwm_pwm7_c_28),
+ INGENIC_PIN_GROUP("mac", x1830_mac),
+};
+
+static const char *x1830_uart0_groups[] = { "uart0-data", "uart0-hwflow", };
+static const char *x1830_uart1_groups[] = { "uart1-data", };
+static const char *x1830_sfc_groups[] = { "sfc", };
+static const char *x1830_ssi0_groups[] = {
+ "ssi0-dt", "ssi0-dr", "ssi0-clk", "ssi0-gpc", "ssi0-ce0", "ssi0-ce1",
+};
+static const char *x1830_ssi1_groups[] = {
+ "ssi1-dt-c", "ssi1-dt-d",
+ "ssi1-dr-c", "ssi1-dr-d",
+ "ssi1-clk-c", "ssi1-clk-d",
+ "ssi1-gpc-c", "ssi1-gpc-d",
+ "ssi1-ce0-c", "ssi1-ce0-d",
+ "ssi1-ce1-c", "ssi1-ce1-d",
+};
+static const char *x1830_mmc0_groups[] = { "mmc0-1bit", "mmc0-4bit", };
+static const char *x1830_mmc1_groups[] = { "mmc1-1bit", "mmc1-4bit", };
+static const char *x1830_i2c0_groups[] = { "i2c0-data", };
+static const char *x1830_i2c1_groups[] = { "i2c1-data", };
+static const char *x1830_i2c2_groups[] = { "i2c2-data", };
+static const char *x1830_pwm0_groups[] = { "pwm0-b", "pwm0-c", };
+static const char *x1830_pwm1_groups[] = { "pwm1-b", "pwm1-c", };
+static const char *x1830_pwm2_groups[] = { "pwm2-c-8", "pwm2-c-13", };
+static const char *x1830_pwm3_groups[] = { "pwm3-c-9", "pwm3-c-14", };
+static const char *x1830_pwm4_groups[] = { "pwm4-c-15", "pwm4-c-25", };
+static const char *x1830_pwm5_groups[] = { "pwm5-c-16", "pwm5-c-26", };
+static const char *x1830_pwm6_groups[] = { "pwm6-c-17", "pwm6-c-27", };
+static const char *x1830_pwm7_groups[] = { "pwm7-c-18", "pwm7-c-28", };
+static const char *x1830_mac_groups[] = { "mac", };
+
+static const struct function_desc x1830_functions[] = {
+ { "uart0", x1830_uart0_groups, ARRAY_SIZE(x1830_uart0_groups), },
+ { "uart1", x1830_uart1_groups, ARRAY_SIZE(x1830_uart1_groups), },
+ { "sfc", x1830_sfc_groups, ARRAY_SIZE(x1830_sfc_groups), },
+ { "ssi0", x1830_ssi0_groups, ARRAY_SIZE(x1830_ssi0_groups), },
+ { "ssi1", x1830_ssi1_groups, ARRAY_SIZE(x1830_ssi1_groups), },
+ { "mmc0", x1830_mmc0_groups, ARRAY_SIZE(x1830_mmc0_groups), },
+ { "mmc1", x1830_mmc1_groups, ARRAY_SIZE(x1830_mmc1_groups), },
+ { "i2c0", x1830_i2c0_groups, ARRAY_SIZE(x1830_i2c0_groups), },
+ { "i2c1", x1830_i2c1_groups, ARRAY_SIZE(x1830_i2c1_groups), },
+ { "i2c2", x1830_i2c2_groups, ARRAY_SIZE(x1830_i2c2_groups), },
+ { "pwm0", x1830_pwm0_groups, ARRAY_SIZE(x1830_pwm0_groups), },
+ { "pwm1", x1830_pwm1_groups, ARRAY_SIZE(x1830_pwm1_groups), },
+ { "pwm2", x1830_pwm2_groups, ARRAY_SIZE(x1830_pwm2_groups), },
+ { "pwm3", x1830_pwm3_groups, ARRAY_SIZE(x1830_pwm3_groups), },
+ { "pwm4", x1830_pwm4_groups, ARRAY_SIZE(x1830_pwm4_groups), },
+ { "pwm5", x1830_pwm5_groups, ARRAY_SIZE(x1830_pwm4_groups), },
+ { "pwm6", x1830_pwm6_groups, ARRAY_SIZE(x1830_pwm4_groups), },
+ { "pwm7", x1830_pwm7_groups, ARRAY_SIZE(x1830_pwm4_groups), },
+ { "mac", x1830_mac_groups, ARRAY_SIZE(x1830_mac_groups), },
+};
+
+static const struct ingenic_chip_info x1830_chip_info = {
+ .num_chips = 4,
+ .groups = x1830_groups,
+ .num_groups = ARRAY_SIZE(x1830_groups),
+ .functions = x1830_functions,
+ .num_functions = ARRAY_SIZE(x1830_functions),
+ .pull_ups = x1830_pull_ups,
+ .pull_downs = x1830_pull_downs,
+};
+
static u32 ingenic_gpio_read_reg(struct ingenic_gpio_chip *jzgc, u8 reg)
{
unsigned int val;
@@ -1422,13 +1646,20 @@ static void ingenic_gpio_shadow_set_bit(struct ingenic_gpio_chip *jzgc,
else
reg = REG_CLEAR(reg);

- regmap_write(jzgc->jzpc->map, X1000_GPIO_PZ_BASE + reg, BIT(offset));
+ if (jzgc->jzpc->version >= ID_X1830)
+ regmap_write(jzgc->jzpc->map, X1830_GPIO_PZ_BASE + reg, BIT(offset));
+ else
+ regmap_write(jzgc->jzpc->map, X1000_GPIO_PZ_BASE + reg, BIT(offset));
}

static void ingenic_gpio_shadow_set_bit_load(struct ingenic_gpio_chip *jzgc)
{
- regmap_write(jzgc->jzpc->map, X1000_GPIO_PZ_GID2LD,
- jzgc->gc.base / PINS_PER_GPIO_CHIP);
+ unsigned int offt = jzgc->gc.base / PINS_PER_GPIO_CHIP;
+
+ if (jzgc->jzpc->version >= ID_X1830)
+ regmap_write(jzgc->jzpc->map, X1830_GPIO_PZ_GID2LD, offt);
+ else
+ regmap_write(jzgc->jzpc->map, X1000_GPIO_PZ_GID2LD, offt);
}

static inline bool ingenic_gpio_get_value(struct ingenic_gpio_chip *jzgc,
@@ -1668,25 +1899,36 @@ 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;
+ unsigned int offt1 = pin / PINS_PER_GPIO_CHIP;
+ unsigned int offt2 = set ? REG_SET(reg) : REG_CLEAR(reg);

- regmap_write(jzpc->map, offt * 0x100 +
- (set ? REG_SET(reg) : REG_CLEAR(reg)), BIT(idx));
+ if (jzpc->version >= ID_X1830)
+ regmap_write(jzpc->map, offt1 * 0x1000 + offt2, BIT(idx));
+ else
+ regmap_write(jzpc->map, offt1 * 0x100 + offt2, BIT(idx));
}

static inline void ingenic_shadow_config_pin(struct ingenic_pinctrl *jzpc,
unsigned int pin, u8 reg, bool set)
{
unsigned int idx = pin % PINS_PER_GPIO_CHIP;
+ unsigned int offt = set ? REG_SET(reg) : REG_CLEAR(reg);

- regmap_write(jzpc->map, X1000_GPIO_PZ_BASE +
- (set ? REG_SET(reg) : REG_CLEAR(reg)), BIT(idx));
+ if (jzpc->version >= ID_X1830)
+ regmap_write(jzpc->map, X1830_GPIO_PZ_BASE + offt, BIT(idx));
+ else
+ regmap_write(jzpc->map, X1000_GPIO_PZ_BASE + offt, BIT(idx));
}

static inline void ingenic_shadow_config_pin_load(struct ingenic_pinctrl *jzpc,
unsigned int pin)
{
- regmap_write(jzpc->map, X1000_GPIO_PZ_GID2LD, pin / PINS_PER_GPIO_CHIP);
+ unsigned int offt = pin / PINS_PER_GPIO_CHIP;
+
+ if (jzpc->version >= ID_X1830)
+ regmap_write(jzpc->map, X1830_GPIO_PZ_GID2LD, offt);
+ else
+ regmap_write(jzpc->map, X1000_GPIO_PZ_GID2LD, offt);
}

static inline bool ingenic_get_pin_config(struct ingenic_pinctrl *jzpc,
@@ -1696,7 +1938,10 @@ static inline bool ingenic_get_pin_config(struct ingenic_pinctrl *jzpc,
unsigned int offt = pin / PINS_PER_GPIO_CHIP;
unsigned int val;

- regmap_read(jzpc->map, offt * 0x100 + reg, &val);
+ if (jzpc->version >= ID_X1830)
+ regmap_read(jzpc->map, offt * 0x1000 + reg, &val);
+ else
+ regmap_read(jzpc->map, offt * 0x100 + reg, &val);

return val & BIT(idx);
}
@@ -1856,13 +2101,56 @@ static int ingenic_pinconf_get(struct pinctrl_dev *pctldev,
return 0;
}

-static void ingenic_set_bias(struct ingenic_pinctrl *jzpc,
- unsigned int pin, bool enabled)
+static int ingenic_set_bias(struct ingenic_pinctrl *jzpc,
+ unsigned int pin, unsigned int bias)
{
- if (jzpc->version >= ID_JZ4760)
- ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PEN, !enabled);
- else
- ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !enabled);
+ if (jzpc->version >= ID_X1830) {
+ unsigned int idx = pin % PINS_PER_GPIO_CHIP;
+ unsigned int offt = pin / PINS_PER_GPIO_CHIP;
+
+ if (bias == GPIO_HIZ) {
+ if (idx < (PINS_PER_GPIO_CHIP / 2))
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_CLEAR(X1830_GPIO_PEL0), BIT(idx * 2) * 3);
+ else
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_CLEAR(X1830_GPIO_PEL1), BIT(idx % 16 * 2) * 3);

The hardcoded 16 here is PINS_PER_GPIO_CHIP / 2?

Why not calculate 'idx' with the proper modulo when it's defined, instead of doing (idx % 16 * 2) everytime?

+ } else if (bias == GPIO_PULLUP) {
+ if (idx < (PINS_PER_GPIO_CHIP / 2)) {
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_SET(X1830_GPIO_PEL0), BIT(idx * 2));
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_CLEAR(X1830_GPIO_PEL0), BIT(idx * 2) * 2);
+ } else {
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_SET(X1830_GPIO_PEL1), BIT(idx % 16 * 2));
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_CLEAR(X1830_GPIO_PEL1), BIT(idx % 16 * 2) * 2);
+ }
+ } else {
+ if (idx < (PINS_PER_GPIO_CHIP / 2)) {
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_CLEAR(X1830_GPIO_PEL0), BIT(idx * 2));
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_SET(X1830_GPIO_PEL0), BIT(idx * 2) * 2);
+ } else {
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_CLEAR(X1830_GPIO_PEL1), BIT(idx % 16 * 2));
+ regmap_write(jzpc->map, offt * 0x1000 +
+ REG_SET(X1830_GPIO_PEL1), BIT(idx % 16 * 2) * 2);
+ }
+ }
+ } else if (jzpc->version >= ID_JZ4760) {
+ if (bias == GPIO_HIZ)
+ return -EINVAL;

Actually this is still not right, because it's now impossible to disable the pull-ups on older JZ SoCs.

I got confused by the "GPIO_HIZ" setting, HiZ mean tristated output GPIO, which is not what this is about and something that Ingenic SoCs don't support. Naming that macro e.g. GPIO_PULL_DIS would be much more representative to its meaning.

Please rename the macro and remove this check (and the other one below).

Cheers,
-Paul

+ ingenic_config_pin(jzpc, pin, JZ4760_GPIO_PEN, !bias);
+ } else {
+ if (bias == GPIO_HIZ)
+ return -EINVAL;
+ ingenic_config_pin(jzpc, pin, JZ4740_GPIO_PULL_DIS, !bias);
+ }
+
+ return 0;
}

static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
@@ -1872,6 +2160,7 @@ static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
unsigned int idx = pin % PINS_PER_GPIO_CHIP;
unsigned int offt = pin / PINS_PER_GPIO_CHIP;
unsigned int cfg;
+ int ret;

for (cfg = 0; cfg < num_configs; cfg++) {
switch (pinconf_to_config_param(configs[cfg])) {
@@ -1889,7 +2178,9 @@ static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
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);
+ ret = ingenic_set_bias(jzpc, pin, GPIO_HIZ);
+ if (ret)
+ return ret;
break;

case PIN_CONFIG_BIAS_PULL_UP:
@@ -1897,7 +2188,9 @@ static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
return -EINVAL;
dev_dbg(jzpc->dev, "set pull-up for pin P%c%u\n",
'A' + offt, idx);
- ingenic_set_bias(jzpc, pin, true);
+ ret = ingenic_set_bias(jzpc, pin, GPIO_PULLUP);
+ if (ret)
+ return ret;
break;

case PIN_CONFIG_BIAS_PULL_DOWN:
@@ -1905,7 +2198,9 @@ static int ingenic_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
return -EINVAL;
dev_dbg(jzpc->dev, "set pull-down for pin P%c%u\n",
'A' + offt, idx);
- ingenic_set_bias(jzpc, pin, true);
+ ret = ingenic_set_bias(jzpc, pin, GPIO_PULLDOWN);
+ if (ret)
+ return ret;
break;

default:
@@ -1987,6 +2282,7 @@ static const struct of_device_id ingenic_pinctrl_of_match[] = {
{ .compatible = "ingenic,x1000-pinctrl", .data = (void *) ID_X1000 },
{ .compatible = "ingenic,x1000e-pinctrl", .data = (void *) ID_X1000E },
{ .compatible = "ingenic,x1500-pinctrl", .data = (void *) ID_X1500 },
+ { .compatible = "ingenic,x1830-pinctrl", .data = (void *) ID_X1830 },
{},
};

@@ -1996,6 +2292,7 @@ static const struct of_device_id ingenic_gpio_of_match[] __initconst = {
{ .compatible = "ingenic,jz4770-gpio", },
{ .compatible = "ingenic,jz4780-gpio", },
{ .compatible = "ingenic,x1000-gpio", },
+ { .compatible = "ingenic,x1830-gpio", },
{},
};

@@ -2018,7 +2315,10 @@ static int __init ingenic_gpio_probe(struct ingenic_pinctrl *jzpc,
return -ENOMEM;

jzgc->jzpc = jzpc;
- jzgc->reg_base = bank * 0x100;
+ if (jzpc->version >= ID_X1830)
+ jzgc->reg_base = bank * 0x1000;
+ else
+ jzgc->reg_base = bank * 0x100;

jzgc->gc.label = devm_kasprintf(dev, GFP_KERNEL, "GPIO%c", 'A' + bank);
if (!jzgc->gc.label)
@@ -2111,7 +2411,9 @@ static int __init ingenic_pinctrl_probe(struct platform_device *pdev)
else
jzpc->version = (enum jz_version)id->driver_data;

- if (jzpc->version >= ID_X1500)
+ if (jzpc->version >= ID_X1830)
+ chip_info = &x1830_chip_info;
+ else if (jzpc->version >= ID_X1500)
chip_info = &x1500_chip_info;
else if (jzpc->version >= ID_X1000E)
chip_info = &x1000e_chip_info;
@@ -2208,6 +2510,7 @@ static const struct platform_device_id ingenic_pinctrl_ids[] = {
{ "x1000-pinctrl", ID_X1000 },
{ "x1000e-pinctrl", ID_X1000E },
{ "x1500-pinctrl", ID_X1500 },
+ { "x1830-pinctrl", ID_X1830 },
{},
};

--
2.7.4

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