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video: dw_hdmi: Select HDMI mode only if monitor supports it

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Some DVI monitors don't work in HDMI mode. Set it only if edid data
explicitly states that it is supported.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Reviewed-by: Simon Glass <sjg@chromium.org>
master
Jernej Skrabec 7 years ago committed by Anatolij Gustschin
parent 43c6bdd020
commit 4f4e1b6365
1 changed files with 16 additions and 15 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 31
      drivers/video/dw_hdmi.c

31
drivers/video/dw_hdmi.c
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@ -414,13 +414,9 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi,
HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH :
HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW);
/*
* TODO(sjg@chromium.org>: Need to check for HDMI / DVI
* inv_val |= (edid->hdmi_monitor_detected ?
* HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE :
* HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE);
*/
inv_val |= HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE;
inv_val |= (edid->hdmi_monitor ?
HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE :
HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE);
inv_val |= HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW;
@ -459,7 +455,7 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi,
}
/* hdmi initialization step b.4 */
static void hdmi_enable_video_path(struct dw_hdmi *hdmi)
static void hdmi_enable_video_path(struct dw_hdmi *hdmi, bool audio)
{
uint clkdis;
@ -484,8 +480,10 @@ static void hdmi_enable_video_path(struct dw_hdmi *hdmi)
clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE;
hdmi_write(hdmi, clkdis, HDMI_MC_CLKDIS);
clkdis &= ~HDMI_MC_CLKDIS_AUDCLK_DISABLE;
hdmi_write(hdmi, clkdis, HDMI_MC_CLKDIS);
if (audio) {
clkdis &= ~HDMI_MC_CLKDIS_AUDCLK_DISABLE;
hdmi_write(hdmi, clkdis, HDMI_MC_CLKDIS);
}
}
/* workaround to clear the overflow condition */
@ -716,7 +714,8 @@ int dw_hdmi_enable(struct dw_hdmi *hdmi, const struct display_timing *edid)
{
int ret;
debug("hdmi, mode info : clock %d hdis %d vdis %d\n",
debug("%s, mode info : clock %d hdis %d vdis %d\n",
edid->hdmi_monitor ? "hdmi" : "dvi",
edid->pixelclock.typ, edid->hactive.typ, edid->vactive.typ);
hdmi_av_composer(hdmi, edid);
@ -725,11 +724,13 @@ int dw_hdmi_enable(struct dw_hdmi *hdmi, const struct display_timing *edid)
if (ret)
return ret;
hdmi_enable_video_path(hdmi);
hdmi_enable_video_path(hdmi, edid->hdmi_monitor);
hdmi_audio_fifo_reset(hdmi);
hdmi_audio_set_format(hdmi);
hdmi_audio_set_samplerate(hdmi, edid->pixelclock.typ);
if (edid->hdmi_monitor) {
hdmi_audio_fifo_reset(hdmi);
hdmi_audio_set_format(hdmi);
hdmi_audio_set_samplerate(hdmi, edid->pixelclock.typ);
}
hdmi_video_packetize(hdmi);
hdmi_video_sample(hdmi);

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