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drm/omap: HDMI: support double-pixel pixel clock

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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>
This commit is contained in:
Tomi Valkeinen 2016-01-13 18:41:33 +02:00
parent 2535895895
commit 67d8ffdd68
2 changed files with 12 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
drivers/gpu/drm/omapdrm/dss/hdmi4.c
View file

@ -168,6 +168,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
struct omap_overlay_manager *mgr = hdmi.output.manager; struct omap_overlay_manager *mgr = hdmi.output.manager;
struct hdmi_wp_data *wp = &hdmi.wp; struct hdmi_wp_data *wp = &hdmi.wp;
struct dss_pll_clock_info hdmi_cinfo = { 0 }; struct dss_pll_clock_info hdmi_cinfo = { 0 };
unsigned pc;
r = hdmi_power_on_core(dssdev); r = hdmi_power_on_core(dssdev);
if (r) 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); 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); r = dss_pll_enable(&hdmi.pll.pll);
if (r) { if (r) {

7
drivers/gpu/drm/omapdrm/dss/hdmi5.c
View file

@ -184,6 +184,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
struct omap_video_timings *p; struct omap_video_timings *p;
struct omap_overlay_manager *mgr = hdmi.output.manager; struct omap_overlay_manager *mgr = hdmi.output.manager;
struct dss_pll_clock_info hdmi_cinfo = { 0 }; struct dss_pll_clock_info hdmi_cinfo = { 0 };
unsigned pc;
r = hdmi_power_on_core(dssdev); r = hdmi_power_on_core(dssdev);
if (r) 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); 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 */ /* disable and clear irqs */
hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff);