linux-kernel - [PATCH v3 2/9] drm/sun4i: tcon: Add TCON LCD support for R40

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Date:   Tue, 31 Dec 2019 18:35:21 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Maxime Ripard <mripard@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Rob Herring <robh+dt@...nel.org>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        linux-sunxi <linux-sunxi@...glegroups.com>,
        linux-amarula@...rulasolutions.com,
        Jagan Teki <jagan@...rulasolutions.com>
Subject: [PATCH v3 2/9] drm/sun4i: tcon: Add TCON LCD support for R40

TCON LCD0, LCD1 in allwinner R40, are used for managing
LCD interfaces like RGB, LVDS and DSI.

Like TCON TV0, TV1 these LCD0, LCD1 are also managed via
tcon top.

Add support for it, in tcon driver.

Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
---
Changes for v3:
- none

 drivers/gpu/drm/sun4i/sun4i_tcon.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index fad72799b8df..69611d38c844 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -1470,6 +1470,13 @@ 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,
+	/* TODO Need to support TCON output muxing via GPIO pins */
+	.set_mux		= sun8i_r40_tcon_tv_set_mux,
+};
+
 static const struct sun4i_tcon_quirks sun8i_r40_tv_quirks = {
 	.has_channel_1		= true,
 	.set_mux		= sun8i_r40_tcon_tv_set_mux,
@@ -1500,6 +1507,7 @@ 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 },
-- 
2.18.0.321.gffc6fa0e3