Hi Russell & Andy
On 08/09/2015 12:03 AM, Russell King wrote:
The FSL kernel detects the HDMI vendor id, and uses this to set
hdmi->edid_cfg.hdmi_cap, which is then used to set mdvi appropriately,
rather than detecting whether we are outputting a CEA mode. Update
the dw_hdmi code to use this logic, but lets eliminate the mdvi
variable, prefering the more verbose "hdmi->sink_is_hdmi" instead.
Use the generic drm_detect_hdmi_monitor() to detect a HDMI sink.
Signed-off-by: Russell King <rmk+ker...@arm.linux.org.uk>
Actually I have posted similarly changes before, feel better about
this one, and I have backport those 06/12 & 07/12 to chrome-3.14
tree, audio still works rightly when I changing the display resolutions.
So I would like to share:
Tested-by: Yakir Yang <y...@rock-chips.com>
Besides, Andy, would you like to share your ACK here :)
Best regards,
- Yakir
---
drivers/gpu/drm/bridge/dw_hdmi.c | 26 ++++++++++++--------------
1 file changed, 12 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index 2e211b8331ed..7f764716f3c4 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -82,7 +82,6 @@ static const u16 csc_coeff_rgb_in_eitu709[3][4] = {
};
struct hdmi_vmode {
- bool mdvi;
bool mdataenablepolarity;
unsigned int mpixelclock;
@@ -123,6 +122,7 @@ struct dw_hdmi {
struct i2c_adapter *ddc;
void __iomem *regs;
+ bool sink_is_hdmi;
spinlock_t audio_lock;
struct mutex audio_mutex;
@@ -913,11 +913,10 @@ static int hdmi_phy_configure(struct dw_hdmi *hdmi,
unsigned char prep,
static int dw_hdmi_phy_init(struct dw_hdmi *hdmi)
{
int i, ret;
- bool cscon = false;
+ bool cscon;
/*check csc whether needed activated in HDMI mode */
- cscon = (is_color_space_conversion(hdmi) &&
- !hdmi->hdmi_data.video_mode.mdvi);
+ cscon = hdmi->sink_is_hdmi && is_color_space_conversion(hdmi);
/* HDMI Phy spec says to do the phy initialization sequence twice */
for (i = 0; i < 2; i++) {
@@ -1094,9 +1093,9 @@ static void hdmi_av_composer(struct dw_hdmi *hdmi,
HDMI_FC_INVIDCONF_IN_I_P_INTERLACED :
HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE;
- inv_val |= (vmode->mdvi ?
- HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE :
- HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE);
+ inv_val |= hdmi->sink_is_hdmi ?
+ HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE :
+ HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE;
hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF);
@@ -1236,10 +1235,8 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
if (!hdmi->vic) {
dev_dbg(hdmi->dev, "Non-CEA mode used in HDMI\n");
- hdmi->hdmi_data.video_mode.mdvi = true;
} else {
dev_dbg(hdmi->dev, "CEA mode used vic=%d\n", hdmi->vic);
- hdmi->hdmi_data.video_mode.mdvi = false;
}
if ((hdmi->vic == 6) || (hdmi->vic == 7) ||
@@ -1275,10 +1272,8 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct
drm_display_mode *mode)
dw_hdmi_enable_video_path(hdmi);
/* not for DVI mode */
- if (hdmi->hdmi_data.video_mode.mdvi) {
- dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
- } else {
- dev_dbg(hdmi->dev, "%s CEA mode\n", __func__);
+ if (hdmi->sink_is_hdmi) {
+ dev_dbg(hdmi->dev, "%s HDMI mode\n", __func__);
/* HDMI Initialization Step E - Configure audio */
hdmi_clk_regenerator_update_pixel_clock(hdmi);
@@ -1286,6 +1281,8 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct
drm_display_mode *mode)
/* HDMI Initialization Step F - Configure AVI InfoFrame */
hdmi_config_AVI(hdmi, mode);
+ } else {
+ dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
}
hdmi_video_packetize(hdmi);
@@ -1294,7 +1291,7 @@ static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct
drm_display_mode *mode)
hdmi_tx_hdcp_config(hdmi);
dw_hdmi_clear_overflow(hdmi);
- if (hdmi->cable_plugin && !hdmi->hdmi_data.video_mode.mdvi)
+ if (hdmi->cable_plugin && hdmi->sink_is_hdmi)
hdmi_enable_overflow_interrupts(hdmi);
return 0;
@@ -1444,6 +1441,7 @@ static int dw_hdmi_connector_get_modes(struct
drm_connector *connector)
dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n",
edid->width_cm, edid->height_cm);
+ hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid);
drm_mode_connector_update_edid_property(connector, edid);
ret = drm_add_edid_modes(connector, edid);
kfree(edid);
--
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