lkml.org 
[lkml]   [2018]   [Jul]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 13/18] drm/sun4i: tcon: Add support for R40 TCON
Date
R40 TV TCON is basically the same as on A83T. However, it needs special
handling, because it has to set up TCON TOP muxes at runtime.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
---
drivers/gpu/drm/sun4i/sun4i_tcon.c | 40 ++++++++++++++++++++++++++++++
1 file changed, 40 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 44ec3a3d4d64..5676b7faaca0 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -1291,6 +1291,40 @@ static int sun6i_tcon_set_mux(struct sun4i_tcon *tcon,
return 0;
}

+static int sun8i_r40_tcon_tv_set_mux(struct sun4i_tcon *tcon,
+ const struct drm_encoder *encoder)
+{
+ struct device_node *port, *remote;
+ struct platform_device *pdev;
+ int id, ret;
+
+ /* find TCON TOP platform device and TCON id */
+
+ port = of_graph_get_port_by_id(tcon->dev->of_node, 0);
+ if (!port)
+ return -EINVAL;
+
+ id = sun4i_tcon_of_get_id_from_port(port);
+ of_node_put(port);
+
+ remote = of_graph_get_remote_node(tcon->dev->of_node, 0, -1);
+ if (!remote)
+ return -EINVAL;
+
+ pdev = of_find_device_by_node(remote);
+ of_node_put(remote);
+ if (!pdev)
+ return -EINVAL;
+
+ if (encoder->encoder_type == DRM_MODE_ENCODER_TMDS) {
+ ret = sun8i_tcon_top_set_hdmi_src(&pdev->dev, id);
+ if (ret)
+ return ret;
+ }
+
+ return sun8i_tcon_top_de_config(&pdev->dev, tcon->id, id);
+}
+
static const struct sun4i_tcon_quirks sun4i_a10_quirks = {
.has_channel_0 = true,
.has_channel_1 = true,
@@ -1338,6 +1372,11 @@ static const struct sun4i_tcon_quirks sun8i_a83t_tv_quirks = {
.has_channel_1 = true,
};

+static const struct sun4i_tcon_quirks sun8i_r40_tv_quirks = {
+ .has_channel_1 = true,
+ .set_mux = sun8i_r40_tcon_tv_set_mux,
+};
+
static const struct sun4i_tcon_quirks sun8i_v3s_quirks = {
.has_channel_0 = true,
};
@@ -1362,6 +1401,7 @@ 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-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 },
{ .compatible = "allwinner,sun9i-a80-tcon-tv", .data = &sun9i_a80_tcon_tv_quirks },
--
2.18.0
\
 
 \ /
  Last update: 2018-07-10 23:00    [W:0.164 / U:1.780 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site