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 --- drivers/gpu/drm/omapdrm/dss/hdmi4.c | 7 ++++++- 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);