rockchip: pinctrl: rk3399: add support for the HDMI I2C pins

[platform/kernel/u-boot.git] / drivers / pinctrl / rockchip / pinctrl_rk3399.c

diff --git a/drivers/pinctrl/rockchip/pinctrl_rk3399.c b/drivers/pinctrl/rockchip/pinctrl_rk3399.c
index c09cd82..d93b903 100644 (file)
--- a/drivers/pinctrl/rockchip/pinctrl_rk3399.c
+++ b/drivers/pinctrl/rockchip/pinctrl_rk3399.c
@@ -265,6 +265,23 @@ static void pinctrl_rk3399_gmac_config(struct rk3399_grf_regs *grf, int mmc_id)
 }
 #endif
 
+#if !defined(CONFIG_SPL_BUILD)
+static void pinctrl_rk3399_hdmi_config(struct rk3399_grf_regs *grf, int hdmi_id)
+{
+       switch (hdmi_id) {
+       case PERIPH_ID_HDMI:
+               rk_clrsetreg(&grf->gpio4c_iomux,
+                            GRF_GPIO4C0_SEL_MASK | GRF_GPIO4C1_SEL_MASK,
+                            (GRF_HDMII2C_SCL << GRF_GPIO4C0_SEL_SHIFT) |
+                            (GRF_HDMII2C_SDA << GRF_GPIO4C1_SEL_SHIFT));
+               break;
+       default:
+               debug("%s: hdmi_id = %d unsupported\n", __func__, hdmi_id);
+               break;
+       }
+}
+#endif
+
 static int rk3399_pinctrl_request(struct udevice *dev, int func, int flags)
 {
        struct rk3399_pinctrl_priv *priv = dev_get_priv(dev);
@@ -314,6 +331,11 @@ static int rk3399_pinctrl_request(struct udevice *dev, int func, int flags)
                pinctrl_rk3399_gmac_config(priv->grf, func);
                break;
 #endif
+#if !defined(CONFIG_SPL_BUILD)
+       case PERIPH_ID_HDMI:
+               pinctrl_rk3399_hdmi_config(priv->grf, func);
+               break;
+#endif
        default:
                return -EINVAL;
        }
@@ -360,6 +382,10 @@ static int rk3399_pinctrl_get_periph_id(struct udevice *dev,
        case 12:
                return PERIPH_ID_GMAC;
 #endif
+#if !defined(CONFIG_SPL_BUILD)
+       case 23:
+               return PERIPH_ID_HDMI;
+#endif
        }
 #endif
        return -ENOENT;