@@ -37,6 +37,9 @@
#define LPC18XX_SCU_PIN_EHD_MASK 0x300
#define LPC18XX_SCU_PIN_EHD_POS 8
+#define LPC18XX_SCU_USB1_EPD BIT(2)
+#define LPC18XX_SCU_USB1_EPWR BIT(4)
+
#define LPC18XX_SCU_I2C0_EFP BIT(0)
#define LPC18XX_SCU_I2C0_EHD BIT(2)
#define LPC18XX_SCU_I2C0_EZI BIT(3)
@@ -617,8 +620,31 @@ static const struct pinctrl_pin_desc lpc18xx_pins[] = {
static int lpc18xx_pconf_get_usb1(enum pin_config_param param, int *arg, u32 reg)
{
- /* TODO */
- return -ENOTSUPP;
+ switch (param) {
+ case PIN_CONFIG_LOW_POWER_MODE:
+ if (reg & LPC18XX_SCU_USB1_EPWR)
+ *arg = 0;
+ else
+ *arg = 1;
+ break;
+
+ case PIN_CONFIG_BIAS_DISABLE:
+ if (reg & LPC18XX_SCU_USB1_EPD)
+ return -EINVAL;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ if (reg & LPC18XX_SCU_USB1_EPD)
+ *arg = 1;
+ else
+ return -EINVAL;
+ break;
+
+ default:
+ return -ENOTSUPP;
+ }
+
+ return 0;
}
static int lpc18xx_pconf_get_i2c0(enum pin_config_param param, int *arg, u32 reg,
@@ -782,8 +808,28 @@ static int lpc18xx_pconf_set_usb1(struct pinctrl_dev *pctldev,
enum pin_config_param param,
u16 param_val, u32 *reg)
{
- /* TODO */
- return -ENOTSUPP;
+ switch (param) {
+ case PIN_CONFIG_LOW_POWER_MODE:
+ if (param_val)
+ *reg &= ~LPC18XX_SCU_USB1_EPWR;
+ else
+ *reg |= LPC18XX_SCU_USB1_EPWR;
+ break;
+
+ case PIN_CONFIG_BIAS_DISABLE:
+ *reg &= ~LPC18XX_SCU_USB1_EPD;
+ break;
+
+ case PIN_CONFIG_BIAS_PULL_DOWN:
+ *reg |= LPC18XX_SCU_USB1_EPD;
+ break;
+
+ default:
+ dev_err(pctldev->dev, "Property not supported\n");
+ return -ENOTSUPP;
+ }
+
+ return 0;
}
static int lpc18xx_pconf_set_i2c0(struct pinctrl_dev *pctldev,
The dedicated USB1 pins can be configured with pull-down and for low power mode (suspend). Add support for this in the pinctrl driver. Signed-off-by: Joachim Eastwood <manabian@gmail.com> --- drivers/pinctrl/pinctrl-lpc18xx.c | 54 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 50 insertions(+), 4 deletions(-)