This adds support for the pwm_ao_b pin. Unfortunately the registers for
the pwm_ao pins are not documented at all. The source for the pwm_ao_b
pin from this patch is the Khadas VIM GPL kernel source, which sets bit
3 and unsets bits 4 and 31 to enable the PWM LEDs.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@xxxxxxxxxxxxxx>
---
drivers/pinctrl/meson/pinctrl-meson-gxl.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/pinctrl/meson/pinctrl-meson-gxl.c b/drivers/pinctrl/meson/pinctrl-meson-gxl.c
index 25694f7094c7..6ff321a7366d 100644
--- a/drivers/pinctrl/meson/pinctrl-meson-gxl.c
+++ b/drivers/pinctrl/meson/pinctrl-meson-gxl.c
@@ -222,6 +222,8 @@ static const unsigned int uart_rts_ao_b_pins[] = { PIN(GPIOAO_3, 0) };
static const unsigned int remote_input_ao_pins[] = {PIN(GPIOAO_7, 0) };
+static const unsigned int pwm_ao_b_pins[] = { PIN(GPIOAO_9, 0) };
+
static struct meson_pmx_group meson_gxl_periphs_groups[] = {
GPIO_GROUP(GPIOZ_0, EE_OFF),
GPIO_GROUP(GPIOZ_1, EE_OFF),
@@ -418,6 +420,7 @@ static struct meson_pmx_group meson_gxl_aobus_groups[] = {
GROUP(uart_cts_ao_b, 0, 8),
GROUP(uart_rts_ao_b, 0, 7),
GROUP(remote_input_ao, 0, 0),
+ GROUP(pwm_ao_b, 0, 3),
};
static const char * const gpio_periphs_groups[] = {
@@ -523,6 +526,10 @@ static const char * const remote_input_ao_groups[] = {
"remote_input_ao",
};
+static const char * const pwm_ao_b_groups[] = {
+ "pwm_ao_b",
+};
+
static struct meson_pmx_func meson_gxl_periphs_functions[] = {
FUNCTION(gpio_periphs),
FUNCTION(emmc),
@@ -544,6 +551,7 @@ static struct meson_pmx_func meson_gxl_aobus_functions[] = {
FUNCTION(uart_ao),
FUNCTION(uart_ao_b),
FUNCTION(remote_input_ao),
+ FUNCTION(pwm_ao_b),
};
static struct meson_bank meson_gxl_periphs_banks[] = {
--
2.11.0
--
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