video: bridge: tc358768: simplify power supplies request

Simplify power supply request logic.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>

diff --git a/drivers/video/bridge/tc358768.c b/drivers/video/bridge/tc358768.c
index 15bee19..6f1b057 100644 (file)
--- a/drivers/video/bridge/tc358768.c
+++ b/drivers/video/bridge/tc358768.c
@@ -124,6 +124,10 @@
 #define NANO   1000000000UL
 #define PICO   1000000000000ULL
 
+static const char * const tc358768_supplies[] = {
+       "vddc-supply", "vddmipi-supply", "vddio-supply"
+};
+
 struct tc358768_priv {
        struct mipi_dsi_host host;
        struct mipi_dsi_device device;
@@ -131,9 +135,7 @@ struct tc358768_priv {
        struct udevice *panel;
        struct display_timing timing;
 
-       struct udevice *vddc;
-       struct udevice *vddmipi;
-       struct udevice *vddio;
+       struct udevice *supplies[ARRAY_SIZE(tc358768_supplies)];
 
        struct clk *refclk;
 
@@ -277,17 +279,17 @@ static void tc358768_hw_enable(struct udevice *dev)
        if (ret)
                log_debug("%s: error enabling refclk (%d)\n", __func__, ret);
 
-       ret = regulator_set_enable_if_allowed(priv->vddc, true);
+       ret = regulator_set_enable_if_allowed(priv->supplies[0], true);
        if (ret)
                log_debug("%s: error enabling vddc (%d)\n", __func__, ret);
 
-       ret = regulator_set_enable_if_allowed(priv->vddmipi, true);
+       ret = regulator_set_enable_if_allowed(priv->supplies[1], true);
        if (ret)
                log_debug("%s: error enabling vddmipi (%d)\n", __func__, ret);
 
        mdelay(10);
 
-       ret = regulator_set_enable_if_allowed(priv->vddio, true);
+       ret = regulator_set_enable_if_allowed(priv->supplies[2], true);
        if (ret)
                log_debug("%s: error enabling vddio (%d)\n", __func__, ret);
 
@@ -904,7 +906,7 @@ static int tc358768_setup(struct udevice *dev)
        struct video_bridge_priv *uc_priv = dev_get_uclass_priv(dev);
        struct mipi_dsi_device *device = &priv->device;
        struct mipi_dsi_panel_plat *mipi_plat;
-       int ret;
+       int i, ret;
 
        /* The bridge uses 16 bit registers */
        ret = i2c_set_chip_offset_len(dev, 2);
@@ -937,25 +939,15 @@ static int tc358768_setup(struct udevice *dev)
        priv->dsi_lanes = device->lanes;
 
        /* get regulators */
-       ret = device_get_supply_regulator(dev, "vddc-supply", &priv->vddc);
-       if (ret) {
-               log_debug("%s: vddc regulator error: %d\n", __func__, ret);
-               if (ret != -ENOENT)
-                       return log_ret(ret);
-       }
-
-       ret = device_get_supply_regulator(dev, "vddmipi-supply", &priv->vddmipi);
-       if (ret) {
-               log_debug("%s: vddmipi regulator error: %d\n", __func__, ret);
-               if (ret != -ENOENT)
-                       return log_ret(ret);
-       }
-
-       ret = device_get_supply_regulator(dev, "vddio-supply", &priv->vddio);
-       if (ret) {
-               log_debug("%s: vddio regulator error: %d\n", __func__, ret);
-               if (ret != -ENOENT)
-                       return log_ret(ret);
+       for (i = 0; i < ARRAY_SIZE(tc358768_supplies); i++) {
+               ret = device_get_supply_regulator(dev, tc358768_supplies[i],
+                                                 &priv->supplies[i]);
+               if (ret) {
+                       log_debug("%s: cannot get %s %d\n", __func__,
+                                 tc358768_supplies[i], ret);
+                       if (ret != -ENOENT)
+                               return log_ret(ret);
+               }
        }
 
        /* get clk */