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drm/exynos: enable dvi mode for dvi monitor 

Hdmi monitor and dvi monitor can be distinguished with edid.
This patch enables dvi mode if dvi monitor is connected and does
not enable audio feature for dvi mode because dvi has no audio
feature.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Seung-Woo Kim 2012-04-24 17:39:15 +09:00 committed by Inki Dae
parent 8379e4823d
commit 872d20d66c
2 changed files with 18 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/gpu/drm/exynos/exynos_hdmi.c
View File

@ -60,6 +60,7 @@ struct hdmi_context {
bool hpd;
bool powered;
bool is_v13;
bool dvi_mode;
struct mutex hdmi_mutex;
struct resource *regs_res;
@ -1211,10 +1212,12 @@ static int hdmi_get_edid(void *ctx, struct drm_connector *connector,
raw_edid = drm_get_edid(connector, hdata->ddc_port->adapter);
if (raw_edid) {
hdata->dvi_mode = !drm_detect_hdmi_monitor(raw_edid);
memcpy(edid, raw_edid, min((1 + raw_edid->extensions)
* EDID_LENGTH, len));
DRM_DEBUG_KMS("width[%d] x height[%d]\n",
raw_edid->width_cm, raw_edid->height_cm);
DRM_DEBUG_KMS("%s : width[%d] x height[%d]\n",
(hdata->dvi_mode ? "dvi monitor" : "hdmi monitor"),
raw_edid->width_cm, raw_edid->height_cm);
} else {
return -ENODEV;
}
@ -1437,10 +1440,7 @@ static void hdmi_audio_init(struct hdmi_context *hdata)
static void hdmi_audio_control(struct hdmi_context *hdata, bool onoff)
{
u32 mod;
mod = hdmi_reg_read(hdata, HDMI_MODE_SEL);
if (mod & HDMI_DVI_MODE_EN)
if (hdata->dvi_mode)
return;
hdmi_reg_writeb(hdata, HDMI_AUI_CON, onoff ? 2 : 0);
@ -1479,6 +1479,14 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
/* disable bluescreen */
hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
if (hdata->dvi_mode) {
/* choose DVI mode */
hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
HDMI_MODE_DVI_EN, HDMI_MODE_MASK);
hdmi_reg_writeb(hdata, HDMI_CON_2,
HDMI_VID_PREAMBLE_DIS | HDMI_GUARD_BAND_DIS);
}
if (hdata->is_v13) {
/* choose bluescreen (fecal) color */
hdmi_reg_writeb(hdata, HDMI_V13_BLUE_SCREEN_0, 0x12);

6
drivers/gpu/drm/exynos/regs-hdmi.h
View File

@ -138,14 +138,16 @@
#define HDMI_ASP_MASK (1 << 2)
#define HDMI_EN (1 << 0)
/* HDMI_CON_2 */
#define HDMI_VID_PREAMBLE_DIS (1 << 5)
#define HDMI_GUARD_BAND_DIS (1 << 1)
/* HDMI_PHY_STATUS */
#define HDMI_PHY_STATUS_READY (1 << 0)
/* HDMI_MODE_SEL */
#define HDMI_MODE_HDMI_EN (1 << 1)
#define HDMI_MODE_DVI_EN (1 << 0)
#define HDMI_DVI_MODE_EN (1)
#define HDMI_DVI_MODE_DIS (0)
#define HDMI_MODE_MASK (3 << 0)
/* HDMI_TG_CMD */