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drm/sun4i: dw-hdmi: always set clock rate

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[ Upstream commit 36b53581fe0dc2e25b67de4e58920307f22d195a ]

As expected, HDMI controller clock should always match pixel clock. In
the past, changing HDMI controller rate would seemingly worsen
situation. However, that was the result of other bugs which are now
fixed.

Fix that by removing set_rate quirk and always set clock rate.

Fixes: 40bb9d3147b2 ("drm/sun4i: Add support for H6 DW HDMI controller")
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Andre Heider <a.heider@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210209175900.7092-4-jernej.skrabec@siol.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Jernej Skrabec 2021-02-09 18:58:58 +01:00 committed by Greg Kroah-Hartman
parent 7596c85a89
commit e639cb199b
2 changed files with 1 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
View File

@ -21,8 +21,7 @@ static void sun8i_dw_hdmi_encoder_mode_set(struct drm_encoder *encoder,
{
struct sun8i_dw_hdmi *hdmi = encoder_to_sun8i_dw_hdmi(encoder);
if (hdmi->quirks->set_rate)
clk_set_rate(hdmi->clk_tmds, mode->crtc_clock * 1000);
clk_set_rate(hdmi->clk_tmds, mode->crtc_clock * 1000);
}
static const struct drm_encoder_helper_funcs
@ -295,7 +294,6 @@ static int sun8i_dw_hdmi_remove(struct platform_device *pdev)
static const struct sun8i_dw_hdmi_quirks sun8i_a83t_quirks = {
.mode_valid = sun8i_dw_hdmi_mode_valid_a83t,
.set_rate = true,
};
static const struct sun8i_dw_hdmi_quirks sun50i_h6_quirks = {

1
drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
View File

@ -179,7 +179,6 @@ struct sun8i_dw_hdmi_quirks {
enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi, void *data,
const struct drm_display_info *info,
const struct drm_display_mode *mode);
unsigned int set_rate : 1;
unsigned int use_drm_infoframe : 1;
};