diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-08-25 17:12:56 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-09-30 16:16:45 +0300 |
| commit | 470245652d98274568ac81a875c8312e73a433ef (patch) | |
| tree | ceb154e43adf8ab7a13cd765365dc953bea50d2f /drivers/video/omap2/dss/hdmi_panel.c | |
| parent | fa70dc5f472ddc261ad429f2c12eb7ac31c90b87 (diff) | |
| download | lwn-470245652d98274568ac81a875c8312e73a433ef.tar.gz lwn-470245652d98274568ac81a875c8312e73a433ef.zip | |
OMAP: DSS2: HDMI: implement read_edid()
Implement read_edid() for HDMI by implementing necessary functions to
hdmi.c and to hdmi_omap4_panel.c.
Cc: Mythri P K <mythripk@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/omap2/dss/hdmi_panel.c')
| -rw-r--r-- | drivers/video/omap2/dss/hdmi_panel.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/hdmi_panel.c b/drivers/video/omap2/dss/hdmi_panel.c index 8c851e624ee6..624f170a5e92 100644 --- a/drivers/video/omap2/dss/hdmi_panel.c +++ b/drivers/video/omap2/dss/hdmi_panel.c @@ -185,6 +185,29 @@ err: return r; } +static int hdmi_read_edid(struct omap_dss_device *dssdev, u8 *buf, int len) +{ + int r; + + mutex_lock(&hdmi.hdmi_lock); + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) { + r = omapdss_hdmi_display_enable(dssdev); + if (r) + goto err; + } + + r = omapdss_hdmi_read_edid(buf, len); + + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED || + dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) + omapdss_hdmi_display_disable(dssdev); +err: + mutex_unlock(&hdmi.hdmi_lock); + + return r; +} + static struct omap_dss_driver hdmi_driver = { .probe = hdmi_panel_probe, .remove = hdmi_panel_remove, @@ -195,6 +218,7 @@ static struct omap_dss_driver hdmi_driver = { .get_timings = hdmi_get_timings, .set_timings = hdmi_set_timings, .check_timings = hdmi_check_timings, + .read_edid = hdmi_read_edid, .driver = { .name = "hdmi_panel", .owner = THIS_MODULE, |