Add the special pins configuration data to allow setup the bias
of the UFS and SDCard pins on the SM8250 SoC.
Signed-off-by: Neil Armstrong <neil.armstr...@linaro.org>
---
drivers/pinctrl/qcom/pinctrl-sm8250.c | 42 +++++++++++++++++++++++++++++++----
1 file changed, 38 insertions(+), 4 deletions(-)
diff --git a/drivers/pinctrl/qcom/pinctrl-sm8250.c
b/drivers/pinctrl/qcom/pinctrl-sm8250.c
index dac24f11bc2..cab42fa64ed 100644
--- a/drivers/pinctrl/qcom/pinctrl-sm8250.c
+++ b/drivers/pinctrl/qcom/pinctrl-sm8250.c
@@ -18,8 +18,37 @@
static char pin_name[MAX_PIN_NAME_LEN] __section(".data");
static const struct pinctrl_function msm_pinctrl_functions[] = { { "qup12", 1
},
- { "gpio", 0 },
- { "sdc2_clk",
0 } };
+ { "gpio", 0 },
};
+#define SDC_PINGROUP(pg_name, ctl, pull, drv) \
+ { \
+ .name = pg_name, \
+ .ctl_reg = ctl, \
+ .io_reg = 0, \
+ .pull_bit = pull, \
+ .drv_bit = drv, \
+ .oe_bit = -1, \
+ .in_bit = -1, \
+ .out_bit = -1, \
+ }
+
+#define UFS_RESET(pg_name, offset) \
+ { \
+ .name = pg_name, \
+ .ctl_reg = offset, \
+ .io_reg = offset + 0x4, \
+ .pull_bit = 3, \
+ .drv_bit = 0, \
+ .oe_bit = -1, \
+ .in_bit = -1, \
+ .out_bit = 0, \
+ }
+
+static const struct msm_special_pin_data sm8250_special_pins_data[] = {
+ [0] = UFS_RESET("ufs_reset", SOUTH + 0xb8000),
+ [1] = SDC_PINGROUP("sdc2_clk", NORTH + 0xb7000, 14, 6),
+ [2] = SDC_PINGROUP("sdc2_cmd", NORTH + 0xb7000, 11, 3),
+ [3] = SDC_PINGROUP("sdc2_data", NORTH + 0xb7000, 9, 0),
+};
static const unsigned int sm8250_pin_offsets[] = {
[0] = SOUTH, [1] = SOUTH, [2] = SOUTH, [3] = SOUTH, [4] =
NORTH, [5] = NORTH,
@@ -52,7 +81,6 @@ static const unsigned int sm8250_pin_offsets[] = {
[162] = WEST, [163] = WEST, [164] = WEST, [165] = WEST, [166] =
WEST, [167] = WEST,
[168] = WEST, [169] = WEST, [170] = WEST, [171] = WEST, [172] =
WEST, [173] = WEST,
[174] = WEST, [175] = WEST, [176] = WEST, [177] = WEST, [178] =
WEST, [179] = WEST,
- [180] = 0, [181] = 0, [182] = 0, [183] = 0,
};
static const char *sm8250_get_function_name(struct udevice *dev, unsigned int
selector)
@@ -62,7 +90,12 @@ static const char *sm8250_get_function_name(struct udevice
*dev, unsigned int se
static const char *sm8250_get_pin_name(struct udevice *dev, unsigned int
selector)
{
- snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+ if (selector >= 180 && selector <= 183)
+ snprintf(pin_name, MAX_PIN_NAME_LEN,
+ sm8250_special_pins_data[selector - 180].name);
+ else
+ snprintf(pin_name, MAX_PIN_NAME_LEN, "gpio%u", selector);
+
return pin_name;
}
@@ -76,6 +109,7 @@ static struct msm_pinctrl_data sm8250_data = {
.pin_offsets = sm8250_pin_offsets,
.pin_count = ARRAY_SIZE(sm8250_pin_offsets),
.special_pins_start = 180,
+ .special_pins_data = sm8250_special_pins_data,
},
.functions_count = ARRAY_SIZE(msm_pinctrl_functions),
.get_function_name = sm8250_get_function_name,
--
2.34.1
