pinctrl: actions: define pad control configurtion to SoC specific
pad control for s900 and s700 are differs in number of
pull control configuraions
s900 has 4 pull controls - high impedence, pull up, pull down, repeater
s700, s500 has 2 pull controls - pull up and pull down
so pad control configuration has to SoC specific, moved out from pinctrl
common to s900 specific.
Signed-off-by: Parthiban Nallathambi <pn@denx.de>
Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/actions/pinctrl-s900.c b/drivers/pinctrl/actions/pinctrl-s900.c
index 0597009..9492b86 100644
--- a/drivers/pinctrl/actions/pinctrl-s900.c
+++ b/drivers/pinctrl/actions/pinctrl-s900.c
@@ -13,6 +13,7 @@
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf-generic.h>
#include "pinctrl-owl.h"
/* Pinctrl registers offset */
@@ -1717,6 +1718,67 @@ static const struct owl_gpio_port s900_gpio_ports[] = {
OWL_GPIO_PORT(F, 0x00F0, 8, 0x0, 0x4, 0x8, 0x460, 0x140, 0x144, 0x178, 0)
};
+enum s900_pinconf_pull {
+ OWL_PINCONF_PULL_HIZ,
+ OWL_PINCONF_PULL_DOWN,
+ OWL_PINCONF_PULL_UP,
+ OWL_PINCONF_PULL_HOLD,
+};
+
+static int s900_pad_pinconf_arg2val(const struct owl_padinfo *info,
+ unsigned int param,
+ u32 *arg)
+{
+ switch (param) {
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ *arg = OWL_PINCONF_PULL_HOLD;
+ break;
+ case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+ *arg = OWL_PINCONF_PULL_HIZ;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ *arg = OWL_PINCONF_PULL_DOWN;
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ *arg = OWL_PINCONF_PULL_UP;
+ break;
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ *arg = (*arg >= 1 ? 1 : 0);
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
+static int s900_pad_pinconf_val2arg(const struct owl_padinfo *padinfo,
+ unsigned int param,
+ u32 *arg)
+{
+ switch (param) {
+ case PIN_CONFIG_BIAS_BUS_HOLD:
+ *arg = *arg == OWL_PINCONF_PULL_HOLD;
+ break;
+ case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+ *arg = *arg == OWL_PINCONF_PULL_HIZ;
+ break;
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ *arg = *arg == OWL_PINCONF_PULL_DOWN;
+ break;
+ case PIN_CONFIG_BIAS_PULL_UP:
+ *arg = *arg == OWL_PINCONF_PULL_UP;
+ break;
+ case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
+ *arg = *arg == 1;
+ break;
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
+}
+
static struct owl_pinctrl_soc_data s900_pinctrl_data = {
.padinfo = s900_padinfo,
.pins = (const struct pinctrl_pin_desc *)s900_pads,
@@ -1727,7 +1789,9 @@ static struct owl_pinctrl_soc_data s900_pinctrl_data = {
.ngroups = ARRAY_SIZE(s900_groups),
.ngpios = NUM_GPIOS,
.ports = s900_gpio_ports,
- .nports = ARRAY_SIZE(s900_gpio_ports)
+ .nports = ARRAY_SIZE(s900_gpio_ports),
+ .padctl_arg2val = s900_pad_pinconf_arg2val,
+ .padctl_val2arg = s900_pad_pinconf_val2arg,
};
static int s900_pinctrl_probe(struct platform_device *pdev)