drm/panel: nv3051d: Add Support for Anbernic 351V

Add support for the Anbernic 351V. Just like the 353 series the
underlying vendor is unknown/unmarked (at least not visible in a
non-destructive manner). The panel had slightly different init
sequences and timings in the BSP kernel, but works fine with the
same ones used in the existing driver. The panel will not work without
the inclusion of the MIPI_DSI_CLOCK_NON_CONTINUOUS flag, and this flag
prevents the 353 series from working correctly, so a new compatible
string is added.

Tested colors and timings using modetest and all seem to work identical
to the 353 otherwise.

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Reviewed-by: Jessica Zhang <quic_jesszhan@quicinc.com>
Link: https://lore.kernel.org/r/20231003163355.143704-3-macroalpha82@gmail.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231003163355.143704-3-macroalpha82@gmail.com

diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
index ad98dd9322b4a3283a6761a746bb2de3dedb4dc8..79de6c886292bb79a731efd839b1220ead10b9d4 100644 (file)
--- a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
+++ b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
@@ -388,6 +388,13 @@ static int panel_nv3051d_probe(struct mipi_dsi_device *dsi)
        dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
                          MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
 
+       /*
+        * The panel in the RG351V is identical to the 353P, except it
+        * requires MIPI_DSI_CLOCK_NON_CONTINUOUS to operate correctly.
+        */
+       if (of_device_is_compatible(dev->of_node, "anbernic,rg351v-panel"))
+               dsi->mode_flags |= MIPI_DSI_CLOCK_NON_CONTINUOUS;
+
        drm_panel_init(&ctx->panel, &dsi->dev, &panel_nv3051d_funcs,
                       DRM_MODE_CONNECTOR_DSI);