| Message ID | 1568278589-20400-1-git-send-email-yannick.fertre@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/stm: dsi: higher pll out only in video burst mode | expand |
Le jeu. 12 sept. 2019 à 10:57, Yannick Fertré <yannick.fertre@st.com> a écrit : > > In order to better support video non-burst modes, > the +20% on pll out is added only in burst mode. > > Signed-off-by: Philippe Cornu <philippe.cornu@st.com> > Reviewed-by: Yannick FERTRE <yannick.fertre@st.com> Applied on drm-misc-next, Thanks, Benjamin > --- > drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c > index a03a642..514efef 100644 > --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c > +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c > @@ -260,8 +260,11 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode, > /* Compute requested pll out */ > bpp = mipi_dsi_pixel_format_to_bpp(format); > pll_out_khz = mode->clock * bpp / lanes; > + > /* Add 20% to pll out to be higher than pixel bw (burst mode only) */ > - pll_out_khz = (pll_out_khz * 12) / 10; > + if (mode_flags & MIPI_DSI_MODE_VIDEO_BURST) > + pll_out_khz = (pll_out_khz * 12) / 10; > + > if (pll_out_khz > dsi->lane_max_kbps) { > pll_out_khz = dsi->lane_max_kbps; > DRM_WARN("Warning max phy mbps is used\n"); > -- > 2.7.4 > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel
diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c index a03a642..514efef 100644 --- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c +++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c @@ -260,8 +260,11 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode, /* Compute requested pll out */ bpp = mipi_dsi_pixel_format_to_bpp(format); pll_out_khz = mode->clock * bpp / lanes; + /* Add 20% to pll out to be higher than pixel bw (burst mode only) */ - pll_out_khz = (pll_out_khz * 12) / 10; + if (mode_flags & MIPI_DSI_MODE_VIDEO_BURST) + pll_out_khz = (pll_out_khz * 12) / 10; + if (pll_out_khz > dsi->lane_max_kbps) { pll_out_khz = dsi->lane_max_kbps; DRM_WARN("Warning max phy mbps is used\n");