MLK-16926-2: drm/panel Update Raydium panel

If a GPIO pin is present, set it to LOW, so that the initial
configuration comes from a LOW value on that pin.
This patch was needed, since the panel driver had issues on MX8MQ.
Also, use the bus specific flags from display timings flags in order to
set them as display_info bus_flags.

Signed-off-by: Robert Chiras <robert.chiras@nxp.com>
Reviewed-by: Laurentiu Palcu <laurentiu.palcu@nxp.com>

diff --git a/drivers/gpu/drm/panel/panel-raydium-rm67191.c b/drivers/gpu/drm/panel/panel-raydium-rm67191.c
index b6db9aa..4e9fea9 100644 (file)
--- a/drivers/gpu/drm/panel/panel-raydium-rm67191.c
+++ b/drivers/gpu/drm/panel/panel-raydium-rm67191.c
@@ -153,7 +153,7 @@ static const cmd_set_table manufacturer_cmd_set[] = {
        {0xC6, 0x00},
        {0xC7, 0x01},
        {0xC8, 0x10},
-       {0xFE, 0x0D},
+       {0xFE, 0x06},
        {0x95, 0xEC},
        {0x8D, 0xEE},
        {0x44, 0xEC},
@@ -395,6 +395,9 @@ static int rad_panel_get_modes(struct drm_panel *panel)
        struct device *dev = &rad->dsi->dev;
        struct drm_connector *connector = panel->connector;
        struct drm_display_mode *mode;
+       u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+       u32 *bus_flags = &connector->display_info.bus_flags;
+       int ret;
 
        mode = drm_mode_create(connector->dev);
        if (!mode) {
@@ -409,6 +412,20 @@ static int rad_panel_get_modes(struct drm_panel *panel)
        connector->display_info.height_mm = rad->height_mm;
        mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
 
+       if (rad->vm.flags & DISPLAY_FLAGS_DE_HIGH)
+               *bus_flags |= DRM_BUS_FLAG_DE_HIGH;
+       if (rad->vm.flags & DISPLAY_FLAGS_DE_LOW)
+               *bus_flags |= DRM_BUS_FLAG_DE_LOW;
+       if (rad->vm.flags & DISPLAY_FLAGS_PIXDATA_NEGEDGE)
+               *bus_flags |= DRM_BUS_FLAG_PIXDATA_NEGEDGE;
+       if (rad->vm.flags & DISPLAY_FLAGS_PIXDATA_POSEDGE)
+               *bus_flags |= DRM_BUS_FLAG_PIXDATA_POSEDGE;
+
+       ret = drm_display_info_set_bus_formats(&connector->display_info,
+                                              &bus_format, 1);
+       if (ret)
+               return ret;
+
        drm_mode_probed_add(panel->connector, mode);
 
        return 1;
@@ -529,6 +546,9 @@ static int rad_panel_probe(struct mipi_dsi_device *dsi)
 
        if (IS_ERR(panel->reset))
                panel->reset = NULL;
+       else
+               gpiod_set_value(panel->reset, 0);
+
 
        memset(&bl_props, 0, sizeof(bl_props));
        bl_props.type = BACKLIGHT_RAW;