[PATCH 4/8] drm/sun4i: tcon: Add support for R40 LCD
From: Ryan Walklin <hidden>
Date: 2025-02-16 09:29:03
Also in:
linux-devicetree, linux-sunxi
Subsystem:
drm drivers, drm drivers and misc gpu patches, drm drivers for allwinner a10, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Chen-Yu Tsai, Linus Torvalds
From: Jernej Skrabec <jernej.skrabec@gmail.com> The Allwinner H616 and related SOCs have an LCD timing controller (TCON) which is compatible with the R40 SOC's controller and existing sun4i driver. The H616 does not expose this controller but the H700 and T507 (based on the same die) do. The controller supports LVDS and RGB output. Add quirks and compatible string to cover these SOCs. Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by: Ryan Walklin <redacted> --- drivers/gpu/drm/sun4i/sun4i_tcon.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 4cd3a07daf6e4..d364e814fde26 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c@@ -1528,6 +1528,14 @@ static const struct sun4i_tcon_quirks sun8i_a83t_tv_quirks = { .has_channel_1 = true, }; +static const struct sun4i_tcon_quirks sun8i_r40_lcd_quirks = { + .supports_lvds = true, + .has_channel_0 = true, + .set_mux = sun8i_r40_tcon_tv_set_mux, + .dclk_min_div = 1, + .setup_lvds_phy = sun6i_tcon_setup_lvds_phy, +}; + static const struct sun4i_tcon_quirks sun8i_r40_tv_quirks = { .has_channel_1 = true, .polarity_in_ch0 = true,
@@ -1569,6 +1577,7 @@ const struct of_device_id sun4i_tcon_of_table[] = { { .compatible = "allwinner,sun8i-a33-tcon", .data = &sun8i_a33_quirks }, { .compatible = "allwinner,sun8i-a83t-tcon-lcd", .data = &sun8i_a83t_lcd_quirks }, { .compatible = "allwinner,sun8i-a83t-tcon-tv", .data = &sun8i_a83t_tv_quirks }, + { .compatible = "allwinner,sun8i-r40-tcon-lcd", .data = &sun8i_r40_lcd_quirks }, { .compatible = "allwinner,sun8i-r40-tcon-tv", .data = &sun8i_r40_tv_quirks }, { .compatible = "allwinner,sun8i-v3s-tcon", .data = &sun8i_v3s_quirks }, { .compatible = "allwinner,sun9i-a80-tcon-lcd", .data = &sun9i_a80_tcon_lcd_quirks },
--
2.48.1