[PATCH v2 4/4] pinctrl: aspeed: g5: Add pinconf support

From: Andrew Jeffery
Date: Fri Apr 07 2017 - 08:58:06 EST

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Testing for pinctrl-aspeed-g5 was performed on an AST2500EVB system,
using the strategy outlined in the commit message for the change to the
Aspeed pinctrl core.

Signed-off-by: Andrew Jeffery <andrew@xxxxxxxx>
---
drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c | 153 ++++++++++++++++++++++++++++-
1 file changed, 152 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
index 43221a3c7e23..68aa04664a62 100644
--- a/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
+++ b/drivers/pinctrl/aspeed/pinctrl-aspeed-g5.c
@@ -2285,6 +2285,146 @@ static const struct aspeed_pin_function aspeed_g5_functions[] = {
ASPEED_PINCTRL_FUNC(WDTRST2),
};

+static struct aspeed_pin_config aspeed_g5_configs[] = {
+ /* GPIOA, GPIOQ */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { B14, B13 }, SCU8C, 16 },
+ { PIN_CONFIG_BIAS_DISABLE, { B14, B13 }, SCU8C, 16 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { A11, N20 }, SCU8C, 16 },
+ { PIN_CONFIG_BIAS_DISABLE, { A11, N20 }, SCU8C, 16 },
+
+ /* GPIOB, GPIOR */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { K19, H20 }, SCU8C, 17 },
+ { PIN_CONFIG_BIAS_DISABLE, { K19, H20 }, SCU8C, 17 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { AA19, E10 }, SCU8C, 17 },
+ { PIN_CONFIG_BIAS_DISABLE, { AA19, E10 }, SCU8C, 17 },
+
+ /* GPIOC, GPIOS*/
+ { PIN_CONFIG_BIAS_PULL_DOWN, { C12, B11 }, SCU8C, 18 },
+ { PIN_CONFIG_BIAS_DISABLE, { C12, B11 }, SCU8C, 18 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { V20, AA20 }, SCU8C, 18 },
+ { PIN_CONFIG_BIAS_DISABLE, { V20, AA20 }, SCU8C, 18 },
+
+ /* GPIOD, GPIOY */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { F19, C21 }, SCU8C, 19 },
+ { PIN_CONFIG_BIAS_DISABLE, { F19, C21 }, SCU8C, 19 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { R22, P20 }, SCU8C, 19 },
+ { PIN_CONFIG_BIAS_DISABLE, { R22, P20 }, SCU8C, 19 },
+
+ /* GPIOE, GPIOZ */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { B20, B19 }, SCU8C, 20 },
+ { PIN_CONFIG_BIAS_DISABLE, { B20, B19 }, SCU8C, 20 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { Y20, W21 }, SCU8C, 20 },
+ { PIN_CONFIG_BIAS_DISABLE, { Y20, W21 }, SCU8C, 20 },
+
+ /* GPIOF, GPIOAA */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { J19, H18 }, SCU8C, 21 },
+ { PIN_CONFIG_BIAS_DISABLE, { J19, H18 }, SCU8C, 21 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { Y21, P19 }, SCU8C, 21 },
+ { PIN_CONFIG_BIAS_DISABLE, { Y21, P19 }, SCU8C, 21 },
+
+ /* GPIOG, GPIOAB */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { A19, E14 }, SCU8C, 22 },
+ { PIN_CONFIG_BIAS_DISABLE, { A19, E14 }, SCU8C, 22 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { N19, R20 }, SCU8C, 22 },
+ { PIN_CONFIG_BIAS_DISABLE, { N19, R20 }, SCU8C, 22 },
+
+ /* GPIOH, GPIOAC */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { A18, D18 }, SCU8C, 23 },
+ { PIN_CONFIG_BIAS_DISABLE, { A18, D18 }, SCU8C, 23 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { G21, G22 }, SCU8C, 23 },
+ { PIN_CONFIG_BIAS_DISABLE, { G21, G22 }, SCU8C, 23 },
+
+ /* GPIOs [I, P] */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { C18, A15 }, SCU8C, 24 },
+ { PIN_CONFIG_BIAS_DISABLE, { C18, A15 }, SCU8C, 24 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { R2, T3 }, SCU8C, 25 },
+ { PIN_CONFIG_BIAS_DISABLE, { R2, T3 }, SCU8C, 25 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { L3, R1 }, SCU8C, 26 },
+ { PIN_CONFIG_BIAS_DISABLE, { L3, R1 }, SCU8C, 26 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { T2, W1 }, SCU8C, 27 },
+ { PIN_CONFIG_BIAS_DISABLE, { T2, W1 }, SCU8C, 27 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { Y1, T5 }, SCU8C, 28 },
+ { PIN_CONFIG_BIAS_DISABLE, { Y1, T5 }, SCU8C, 28 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { V2, T4 }, SCU8C, 29 },
+ { PIN_CONFIG_BIAS_DISABLE, { V2, T4 }, SCU8C, 29 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { U5, W4 }, SCU8C, 30 },
+ { PIN_CONFIG_BIAS_DISABLE, { U5, W4 }, SCU8C, 30 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { V4, V6 }, SCU8C, 31 },
+ { PIN_CONFIG_BIAS_DISABLE, { V4, V6 }, SCU8C, 31 },
+
+ /* GPIOs T[0-5] (RGMII1 Tx pins) */
+ { PIN_CONFIG_DRIVE_STRENGTH, { B5, B5 }, SCU90, 8 },
+ { PIN_CONFIG_DRIVE_STRENGTH, { E9, A5 }, SCU90, 9 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { B5, D7 }, SCU90, 12 },
+ { PIN_CONFIG_BIAS_DISABLE, { B5, D7 }, SCU90, 12 },
+
+ /* GPIOs T[6-7], U[0-3] (RGMII2 TX pins) */
+ { PIN_CONFIG_DRIVE_STRENGTH, { B2, B2 }, SCU90, 10 },
+ { PIN_CONFIG_DRIVE_STRENGTH, { B1, B3 }, SCU90, 11 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { B2, D4 }, SCU90, 14 },
+ { PIN_CONFIG_BIAS_DISABLE, { B2, D4 }, SCU90, 14 },
+
+ /* GPIOs U[4-7], V[0-1] (RGMII1 Rx pins) */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { B4, C4 }, SCU90, 13 },
+ { PIN_CONFIG_BIAS_DISABLE, { B4, C4 }, SCU90, 13 },
+
+ /* GPIOs V[2-7] (RGMII2 Rx pins) */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { C2, E6 }, SCU90, 15 },
+ { PIN_CONFIG_BIAS_DISABLE, { C2, E6 }, SCU90, 15 },
+
+ /* ADC pull-downs (SCUA8[19:4]) */
+ { PIN_CONFIG_BIAS_PULL_DOWN, { F4, F4 }, SCUA8, 4 },
+ { PIN_CONFIG_BIAS_DISABLE, { F4, F4 }, SCUA8, 4 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { F5, F5 }, SCUA8, 5 },
+ { PIN_CONFIG_BIAS_DISABLE, { F5, F5 }, SCUA8, 5 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { E2, E2 }, SCUA8, 6 },
+ { PIN_CONFIG_BIAS_DISABLE, { E2, E2 }, SCUA8, 6 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { E1, E1 }, SCUA8, 7 },
+ { PIN_CONFIG_BIAS_DISABLE, { E1, E1 }, SCUA8, 7 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { F3, F3 }, SCUA8, 8 },
+ { PIN_CONFIG_BIAS_DISABLE, { F3, F3 }, SCUA8, 8 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { E3, E3 }, SCUA8, 9 },
+ { PIN_CONFIG_BIAS_DISABLE, { E3, E3 }, SCUA8, 9 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { G5, G5 }, SCUA8, 10 },
+ { PIN_CONFIG_BIAS_DISABLE, { G5, G5 }, SCUA8, 10 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { G4, G4 }, SCUA8, 11 },
+ { PIN_CONFIG_BIAS_DISABLE, { G4, G4 }, SCUA8, 11 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { F2, F2 }, SCUA8, 12 },
+ { PIN_CONFIG_BIAS_DISABLE, { F2, F2 }, SCUA8, 12 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { G3, G3 }, SCUA8, 13 },
+ { PIN_CONFIG_BIAS_DISABLE, { G3, G3 }, SCUA8, 13 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { G2, G2 }, SCUA8, 14 },
+ { PIN_CONFIG_BIAS_DISABLE, { G2, G2 }, SCUA8, 14 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { F1, F1 }, SCUA8, 15 },
+ { PIN_CONFIG_BIAS_DISABLE, { F1, F1 }, SCUA8, 15 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { H5, H5 }, SCUA8, 16 },
+ { PIN_CONFIG_BIAS_DISABLE, { H5, H5 }, SCUA8, 16 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { G1, G1 }, SCUA8, 17 },
+ { PIN_CONFIG_BIAS_DISABLE, { G1, G1 }, SCUA8, 17 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { H3, H3 }, SCUA8, 18 },
+ { PIN_CONFIG_BIAS_DISABLE, { H3, H3 }, SCUA8, 18 },
+ { PIN_CONFIG_BIAS_PULL_DOWN, { H4, H4 }, SCUA8, 19 },
+ { PIN_CONFIG_BIAS_DISABLE, { H4, H4 }, SCUA8, 19 },
+
+ /*
+ * Debounce settings for GPIOs D and E passthrough mode are in
+ * SCUA8[27:20] and so are managed by pinctrl. Normal GPIO debounce for
+ * banks D and E is handled by the GPIO driver - GPIO passthrough is
+ * treated like any other non-GPIO mux function. There is a catch
+ * however, in that the debounce period is configured in the GPIO
+ * controller. Due to this tangle between GPIO and pinctrl we don't yet
+ * fully support pass-through debounce.
+ */
+ { PIN_CONFIG_INPUT_DEBOUNCE, { F19, E21 }, SCUA8, 20 },
+ { PIN_CONFIG_INPUT_DEBOUNCE, { F20, D20 }, SCUA8, 21 },
+ { PIN_CONFIG_INPUT_DEBOUNCE, { D21, E20 }, SCUA8, 22 },
+ { PIN_CONFIG_INPUT_DEBOUNCE, { G18, C21 }, SCUA8, 23 },
+ { PIN_CONFIG_INPUT_DEBOUNCE, { B20, C20 }, SCUA8, 24 },
+ { PIN_CONFIG_INPUT_DEBOUNCE, { F18, F17 }, SCUA8, 25 },
+ { PIN_CONFIG_INPUT_DEBOUNCE, { E18, D19 }, SCUA8, 26 },
+ { PIN_CONFIG_INPUT_DEBOUNCE, { A20, B19 }, SCUA8, 27 },
+};
+
static struct aspeed_pinctrl_data aspeed_g5_pinctrl_data = {
.pins = aspeed_g5_pins,
.npins = ARRAY_SIZE(aspeed_g5_pins),
@@ -2292,6 +2432,8 @@ static struct aspeed_pinctrl_data aspeed_g5_pinctrl_data = {
.ngroups = ARRAY_SIZE(aspeed_g5_groups),
.functions = aspeed_g5_functions,
.nfunctions = ARRAY_SIZE(aspeed_g5_functions),
+ .configs = aspeed_g5_configs,
+ .nconfigs = ARRAY_SIZE(aspeed_g5_configs),
};

static struct pinmux_ops aspeed_g5_pinmux_ops = {
@@ -2308,16 +2450,25 @@ static struct pinctrl_ops aspeed_g5_pinctrl_ops = {
.get_group_name = aspeed_pinctrl_get_group_name,
.get_group_pins = aspeed_pinctrl_get_group_pins,
.pin_dbg_show = aspeed_pinctrl_pin_dbg_show,
- .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_all,
.dt_free_map = pinctrl_utils_free_map,
};

+static struct pinconf_ops aspeed_g5_conf_ops = {
+ .is_generic = true,
+ .pin_config_get = aspeed_pin_config_get,
+ .pin_config_set = aspeed_pin_config_set,
+ .pin_config_group_get = aspeed_pin_config_group_get,
+ .pin_config_group_set = aspeed_pin_config_group_set,
+};
+
static struct pinctrl_desc aspeed_g5_pinctrl_desc = {
.name = "aspeed-g5-pinctrl",
.pins = aspeed_g5_pins,
.npins = ARRAY_SIZE(aspeed_g5_pins),
.pctlops = &aspeed_g5_pinctrl_ops,
.pmxops = &aspeed_g5_pinmux_ops,
+ .confops = &aspeed_g5_conf_ops,
};

static int aspeed_g5_pinctrl_probe(struct platform_device *pdev)
--
2.9.3

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