[PATCH 2/2] pinctrl: rockchip: Add rk3128 pinctrl support

From: David Wu
Date: Fri Jul 21 2017 - 02:23:27 EST

There are 3 IP blocks pin routes need to be switched, that are
emmc-cmd, spi, i2s. And there are some pins need to be recalced,
which are gpio2c4~gpio2c7 and gpio2d0.

Signed-off-by: David Wu <david.wu@xxxxxxxxxxxxxx>
---
.../bindings/pinctrl/rockchip,pinctrl.txt | 1 +
drivers/pinctrl/pinctrl-rockchip.c | 129 +++++++++++++++++++++
2 files changed, 130 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
index ee01ab5..58b7921 100644
--- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
@@ -24,6 +24,7 @@ Required properties for iomux controller:
"rockchip,rk2928-pinctrl": for Rockchip RK2928
"rockchip,rk3066a-pinctrl": for Rockchip RK3066a
"rockchip,rk3066b-pinctrl": for Rockchip RK3066b
+ "rockchip,rk3128-pinctrl": for Rockchip RK3128
"rockchip,rk3188-pinctrl": for Rockchip RK3188
"rockchip,rk3228-pinctrl": for Rockchip RK3228
"rockchip,rk3288-pinctrl": for Rockchip RK3288
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index fd4e491..7ba0c40 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -62,6 +62,7 @@ enum rockchip_pinctrl_type {
RV1108,
RK2928,
RK3066B,
+ RK3128,
RK3188,
RK3288,
RK3368,
@@ -557,6 +558,40 @@ static void rockchip_dt_free_map(struct pinctrl_dev *pctldev,
* Hardware access
*/

+static struct rockchip_mux_recalced_data rk3128_mux_recalced_data[] = {
+ {
+ .num = 2,
+ .pin = 20,
+ .reg = 0xe8,
+ .bit = 0,
+ .mask = 0x7
+ }, {
+ .num = 2,
+ .pin = 21,
+ .reg = 0xe8,
+ .bit = 4,
+ .mask = 0x7
+ }, {
+ .num = 2,
+ .pin = 22,
+ .reg = 0xe8,
+ .bit = 8,
+ .mask = 0x7
+ }, {
+ .num = 2,
+ .pin = 23,
+ .reg = 0xe8,
+ .bit = 12,
+ .mask = 0x7
+ }, {
+ .num = 2,
+ .pin = 24,
+ .reg = 0xd4,
+ .bit = 12,
+ .mask = 0x7
+ },
+};
+
static struct rockchip_mux_recalced_data rk3328_mux_recalced_data[] = {
{
.num = 2,
@@ -602,6 +637,59 @@ static void rockchip_get_recalced_mux(struct rockchip_pin_bank *bank, int pin,
*bit = data->bit;
}

+static struct rockchip_mux_route_data rk3128_mux_route_data[] = {
+ {
+ /* spi-0 */
+ .bank_num = 1,
+ .pin = 10,
+ .func = 1,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 3) | BIT(16 + 4),
+ }, {
+ /* spi-1 */
+ .bank_num = 1,
+ .pin = 27,
+ .func = 3,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(3),
+ }, {
+ /* spi-2 */
+ .bank_num = 0,
+ .pin = 13,
+ .func = 2,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 3) | BIT(16 + 4) | BIT(4),
+ }, {
+ /* i2s-0 */
+ .bank_num = 1,
+ .pin = 5,
+ .func = 1,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 5),
+ }, {
+ /* i2s-1 */
+ .bank_num = 0,
+ .pin = 14,
+ .func = 1,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 5) | BIT(5),
+ }, {
+ /* emmc-0 */
+ .bank_num = 1,
+ .pin = 22,
+ .func = 2,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 6),
+ }, {
+ /* emmc-1 */
+ .bank_num = 2,
+ .pin = 4,
+ .func = 2,
+ .route_offset = 0x144,
+ .route_val = BIT(16 + 6) | BIT(6),
+ },
+};
+
static struct rockchip_mux_route_data rk3228_mux_route_data[] = {
{
/* pwm0-0 */
@@ -1102,6 +1190,22 @@ static void rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
*bit = pin_num % RK2928_PULL_PINS_PER_REG;
};

+#define RK3128_PULL_OFFSET 0x118
+
+static void rk3128_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+ int pin_num, struct regmap **regmap,
+ int *reg, u8 *bit)
+{
+ struct rockchip_pinctrl *info = bank->drvdata;
+
+ *regmap = info->regmap_base;
+ *reg = RK3128_PULL_OFFSET;
+ *reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
+ *reg += ((pin_num / RK2928_PULL_PINS_PER_REG) * 4);
+
+ *bit = pin_num % RK2928_PULL_PINS_PER_REG;
+}
+
#define RK3188_PULL_OFFSET 0x164
#define RK3188_PULL_BITS_PER_PIN 2
#define RK3188_PULL_PINS_PER_REG 8
@@ -1571,6 +1675,7 @@ static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)

switch (ctrl->type) {
case RK2928:
+ case RK3128:
return !(data & BIT(bit))
? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
: PIN_CONFIG_BIAS_DISABLE;
@@ -1611,6 +1716,7 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,

switch (ctrl->type) {
case RK2928:
+ case RK3128:
data = BIT(bit + 16);
if (pull == PIN_CONFIG_BIAS_DISABLE)
data |= BIT(bit);
@@ -1865,6 +1971,7 @@ static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
{
switch (ctrl->type) {
case RK2928:
+ case RK3128:
return (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT ||
pull == PIN_CONFIG_BIAS_DISABLE);
case RK3066B:
@@ -3093,6 +3200,26 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
.grf_mux_offset = 0x60,
};

+static struct rockchip_pin_bank rk3128_pin_banks[] = {
+ PIN_BANK(0, 32, "gpio0"),
+ PIN_BANK(1, 32, "gpio1"),
+ PIN_BANK(2, 32, "gpio2"),
+ PIN_BANK(3, 32, "gpio3"),
+};
+
+static struct rockchip_pin_ctrl rk3128_pin_ctrl = {
+ .pin_banks = rk3128_pin_banks,
+ .nr_banks = ARRAY_SIZE(rk3128_pin_banks),
+ .label = "RK3128-GPIO",
+ .type = RK3128,
+ .grf_mux_offset = 0xa8,
+ .iomux_recalced = rk3128_mux_recalced_data,
+ .niomux_recalced = ARRAY_SIZE(rk3128_mux_recalced_data),
+ .iomux_routes = rk3128_mux_route_data,
+ .niomux_routes = ARRAY_SIZE(rk3128_mux_route_data),
+ .pull_calc_reg = rk3128_calc_pull_reg_and_bit,
+};
+
static struct rockchip_pin_bank rk3188_pin_banks[] = {
PIN_BANK_IOMUX_FLAGS(0, 32, "gpio0", IOMUX_GPIO_ONLY, 0, 0, 0),
PIN_BANK(1, 32, "gpio1"),
@@ -3301,6 +3428,8 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
.data = &rk3066a_pin_ctrl },
{ .compatible = "rockchip,rk3066b-pinctrl",
.data = &rk3066b_pin_ctrl },
+ { .compatible = "rockchip,rk3128-pinctrl",
+ .data = (void *)&rk3128_pin_ctrl },
{ .compatible = "rockchip,rk3188-pinctrl",
.data = &rk3188_pin_ctrl },
{ .compatible = "rockchip,rk3228-pinctrl",
--
1.9.1