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| author | Philippe CORNU <philippe.cornu@st.com> | 2018-01-25 16:55:04 +0100 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2018-04-26 08:24:26 +0200 |
| commit | 741c3aeb82c78e173aa7155aaffb971e5c73ab3c (patch) | |
| tree | adaa3779d56f4bbbd254836b5153f72780b72881 /drivers/gpu/drm/bridge/synopsys | |
| parent | 664991010ff34ce2a51cea95dfdfb711be8c780f (diff) | |
| download | talos-obmc-linux-741c3aeb82c78e173aa7155aaffb971e5c73ab3c.tar.gz talos-obmc-linux-741c3aeb82c78e173aa7155aaffb971e5c73ab3c.zip | |
drm/bridge/synopsys: dsi: use adjusted_mode in mode_set
The "adjusted_mode" clock value (ie the real pixel clock) is more
accurate than "mode" clock value (ie the panel/bridge requested
clock value). It offers a better preciseness for timing
computations and allows to reduce the extra dsi bandwidth in
burst mode (from ~20% to ~10-12%, hw platform dependent).
Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
Tested-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Yannick Fertré <yannick.fertre@st.com>
Tested-by: Yannick Fertré <yannick.fertre@st.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125155504.8611-1-philippe.cornu@st.com
Diffstat (limited to 'drivers/gpu/drm/bridge/synopsys')
| -rw-r--r-- | drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c index 0c7ecf798874..fd7999642cf8 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c @@ -771,20 +771,20 @@ static void dw_mipi_dsi_bridge_mode_set(struct drm_bridge *bridge, clk_prepare_enable(dsi->pclk); - ret = phy_ops->get_lane_mbps(priv_data, mode, dsi->mode_flags, + ret = phy_ops->get_lane_mbps(priv_data, adjusted_mode, dsi->mode_flags, dsi->lanes, dsi->format, &dsi->lane_mbps); if (ret) DRM_DEBUG_DRIVER("Phy get_lane_mbps() failed\n"); pm_runtime_get_sync(dsi->dev); dw_mipi_dsi_init(dsi); - dw_mipi_dsi_dpi_config(dsi, mode); + dw_mipi_dsi_dpi_config(dsi, adjusted_mode); dw_mipi_dsi_packet_handler_config(dsi); dw_mipi_dsi_video_mode_config(dsi); - dw_mipi_dsi_video_packet_config(dsi, mode); + dw_mipi_dsi_video_packet_config(dsi, adjusted_mode); dw_mipi_dsi_command_mode_config(dsi); - dw_mipi_dsi_line_timer_config(dsi, mode); - dw_mipi_dsi_vertical_timing_config(dsi, mode); + dw_mipi_dsi_line_timer_config(dsi, adjusted_mode); + dw_mipi_dsi_vertical_timing_config(dsi, adjusted_mode); dw_mipi_dsi_dphy_init(dsi); dw_mipi_dsi_dphy_timing_config(dsi); @@ -798,7 +798,7 @@ static void dw_mipi_dsi_bridge_mode_set(struct drm_bridge *bridge, dw_mipi_dsi_dphy_enable(dsi); - dw_mipi_dsi_wait_for_two_frames(mode); + dw_mipi_dsi_wait_for_two_frames(adjusted_mode); /* Switch to cmd mode for panel-bridge pre_enable & panel prepare */ dw_mipi_dsi_set_mode(dsi, 0); |
