diff options
| author | Tomi Valkeinen | 2016-01-13 18:41:33 +0200 |
|---|---|---|
| committer | Tomi Valkeinen | 2016-03-03 17:36:42 +0200 |
| commit | 67d8ffdd688e4ddc4fac25e338f748000128b3ce (patch) | |
| tree | 42126bdb476e9e198d81d0b3877b68a08424b36e /drivers | |
| parent | 253589589587ccbc575c8dfdc43bf2c8c2a66a5b (diff) | |
drm/omap: HDMI: support double-pixel pixel clock
We need double-pixel mode (pixel repetition) for interlace modes. This
patch adds the necessary support to HDMI to double the pixel clock when
double-pixel mode is used.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/hdmi4.c | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/omapdrm/dss/hdmi5.c | 7 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi4.c b/drivers/gpu/drm/omapdrm/dss/hdmi4.c index b09ce9ee82fa..ddd6a331df39 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi4.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi4.c @@ -168,6 +168,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev) struct omap_overlay_manager *mgr = hdmi.output.manager; struct hdmi_wp_data *wp = &hdmi.wp; struct dss_pll_clock_info hdmi_cinfo = { 0 }; + unsigned pc; r = hdmi_power_on_core(dssdev); if (r) @@ -181,7 +182,11 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev) DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res); - hdmi_pll_compute(&hdmi.pll, p->pixelclock, &hdmi_cinfo); + pc = p->pixelclock; + if (p->double_pixel) + pc *= 2; + + hdmi_pll_compute(&hdmi.pll, pc, &hdmi_cinfo); r = dss_pll_enable(&hdmi.pll.pll); if (r) { diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi5.c b/drivers/gpu/drm/omapdrm/dss/hdmi5.c index 4485a1c37bd8..34174ea85a54 100644 --- a/drivers/gpu/drm/omapdrm/dss/hdmi5.c +++ b/drivers/gpu/drm/omapdrm/dss/hdmi5.c @@ -184,6 +184,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev) struct omap_video_timings *p; struct omap_overlay_manager *mgr = hdmi.output.manager; struct dss_pll_clock_info hdmi_cinfo = { 0 }; + unsigned pc; r = hdmi_power_on_core(dssdev); if (r) @@ -193,7 +194,11 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev) DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res); - hdmi_pll_compute(&hdmi.pll, p->pixelclock, &hdmi_cinfo); + pc = p->pixelclock; + if (p->double_pixel) + pc *= 2; + + hdmi_pll_compute(&hdmi.pll, pc, &hdmi_cinfo); /* disable and clear irqs */ hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); |