| Message ID | 1448007339-10966-4-git-send-email-zyw@rock-chips.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 2015?11?20? 16:15, Chris Zhong wrote: > Since the mipi dsi driver need to use the clock of vop to make the > calculation of Blanking. But sometimes the clock driver can not set a > accurate clock_rate for vop, get it by clk_round_rate before mode_set, > so we can get the true value. > > Signed-off-by: Chris Zhong <zyw@rock-chips.com> > > --- > > Changes in v4: > use clk_round_rate to check the clock rate in vop_crtc_mode_fixup > > Changes in v3: None > Changes in v2: None > > drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > index 5d8ae5e..eff545b 100644 > --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c > @@ -1136,9 +1136,14 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, > const struct drm_display_mode *mode, > struct drm_display_mode *adjusted_mode) > { > + struct vop *vop = to_vop(crtc); > + > if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0) > return false; > > + adjusted_mode->clock = > + clk_round_rate(vop->dclk, mode->clock * 1000) / 1000; > + > return true; > } > Looks good for me, so Acked-by: Mark Yao <mark.yao@rock-chips.com>
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 5d8ae5e..eff545b 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1136,9 +1136,14 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) { + struct vop *vop = to_vop(crtc); + if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0) return false; + adjusted_mode->clock = + clk_round_rate(vop->dclk, mode->clock * 1000) / 1000; + return true; }
Since the mipi dsi driver need to use the clock of vop to make the calculation of Blanking. But sometimes the clock driver can not set a accurate clock_rate for vop, get it by clk_round_rate before mode_set, so we can get the true value. Signed-off-by: Chris Zhong <zyw@rock-chips.com> --- Changes in v4: use clk_round_rate to check the clock rate in vop_crtc_mode_fixup Changes in v3: None Changes in v2: None drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 5 +++++ 1 file changed, 5 insertions(+)