diff options
| author | Eric Anholt <eric@anholt.net> | 2016-09-30 01:34:44 +0300 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2016-10-06 21:58:28 +0300 |
| commit | dfccd937deec9283d6ced73e138808e62bec54e8 (patch) | |
| tree | 546c4042707df9cbbcc2c4c2dcf446dd03758d4c /drivers/gpu/drm/vc4/vc4_hdmi.c | |
| parent | 21317b3fba5428c97779cc8a988ac603e82abd8b (diff) | |
| download | linux-dfccd937deec9283d6ced73e138808e62bec54e8.tar.xz | |
drm/vc4: Add support for double-clocked modes.
Now that we have infoframes to report the pixel repeat flag, we can
start using it. Fixes locking the 720x480i and 720x576i modes on my
Dell 2408WFP. Like the 1920x1080i case, they don't fit properly on
the screen, though.
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_hdmi.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index d6b54b905bee..c4cb2e26de32 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -402,6 +402,7 @@ static void vc4_hdmi_encoder_mode_set(struct drm_encoder *encoder, bool hsync_pos = mode->flags & DRM_MODE_FLAG_PHSYNC; bool vsync_pos = mode->flags & DRM_MODE_FLAG_PVSYNC; bool interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE; + u32 pixel_rep = (mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1; u32 verta = (VC4_SET_FIELD(mode->crtc_vsync_end - mode->crtc_vsync_start, VC4_HDMI_VERTA_VSP) | VC4_SET_FIELD(mode->crtc_vsync_start - mode->crtc_vdisplay, @@ -424,7 +425,8 @@ static void vc4_hdmi_encoder_mode_set(struct drm_encoder *encoder, HD_WRITE(VC4_HD_VID_CTL, 0); - clk_set_rate(vc4->hdmi->pixel_clock, mode->clock * 1000); + clk_set_rate(vc4->hdmi->pixel_clock, mode->clock * 1000 * + ((mode->flags & DRM_MODE_FLAG_DBLCLK) ? 2 : 1)); HDMI_WRITE(VC4_HDMI_SCHEDULER_CONTROL, HDMI_READ(VC4_HDMI_SCHEDULER_CONTROL) | @@ -434,14 +436,18 @@ static void vc4_hdmi_encoder_mode_set(struct drm_encoder *encoder, HDMI_WRITE(VC4_HDMI_HORZA, (vsync_pos ? VC4_HDMI_HORZA_VPOS : 0) | (hsync_pos ? VC4_HDMI_HORZA_HPOS : 0) | - VC4_SET_FIELD(mode->hdisplay, VC4_HDMI_HORZA_HAP)); + VC4_SET_FIELD(mode->hdisplay * pixel_rep, + VC4_HDMI_HORZA_HAP)); HDMI_WRITE(VC4_HDMI_HORZB, - VC4_SET_FIELD(mode->htotal - mode->hsync_end, + VC4_SET_FIELD((mode->htotal - + mode->hsync_end) * pixel_rep, VC4_HDMI_HORZB_HBP) | - VC4_SET_FIELD(mode->hsync_end - mode->hsync_start, + VC4_SET_FIELD((mode->hsync_end - + mode->hsync_start) * pixel_rep, VC4_HDMI_HORZB_HSP) | - VC4_SET_FIELD(mode->hsync_start - mode->hdisplay, + VC4_SET_FIELD((mode->hsync_start - + mode->hdisplay) * pixel_rep, VC4_HDMI_HORZB_HFP)); HDMI_WRITE(VC4_HDMI_VERTA0, verta); |