From 0e7fa46c54699dfd8cc1f340b8b741a8e97212d9 Mon Sep 17 00:00:00 2001
From: Chris Morgan <macromorgan@hotmail.com>
Date: Tue, 3 Oct 2023 11:33:55 -0500
Subject: drm/panel: nv3051d: Add Support for Anbernic 351V
Git-commit: eba90a7aa2258cae4caeaa8f748506c315c30bd1
Patch-mainline: v6.7-rc1
References: jsc#PED-3527 jsc#PED-5475 jsc#PED-6068 jsc#PED-6070 jsc#PED-6116 jsc#PED-6120 jsc#PED-5065 jsc#PED-5477 jsc#PED-5511 jsc#PED-6041 jsc#PED-6069 jsc#PED-6071
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
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/panel/panel-newvision-nv3051d.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/panel/panel-newvision-nv3051d.c b/drivers/gpu/drm/panel/panel-newvision-nv3051d.c
index ad98dd9322b4..79de6c886292 100644
--- 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);
--
2.43.0