Messages in this thread Patch in this message | | | From | Chris Zhong <> | Subject | [PATCH v2 11/11] drm/rockchip/dsi: fix insufficient bandwidth of some panel | Date | Mon, 16 Jan 2017 18:08:31 +0800 |
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Set the lanes bps to 1 / 0.9 times of pclk, the margin is not enough for some panel, it will cause the screen display is not normal, so increases the badnwidth to 1 / 0.8.
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
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drivers/gpu/drm/rockchip/dw-mipi-dsi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c index 9dfa73d..5a973fe 100644 --- a/drivers/gpu/drm/rockchip/dw-mipi-dsi.c +++ b/drivers/gpu/drm/rockchip/dw-mipi-dsi.c @@ -501,8 +501,8 @@ static int dw_mipi_dsi_get_lane_bps(struct dw_mipi_dsi *dsi) mpclk = DIV_ROUND_UP(dsi->mode->clock, MSEC_PER_SEC); if (mpclk) { - /* take 1 / 0.9, since mbps must big than bandwidth of RGB */ - tmp = mpclk * (bpp / dsi->lanes) * 10 / 9; + /* take 1 / 0.8, since mbps must big than bandwidth of RGB */ + tmp = mpclk * (bpp / dsi->lanes) * 10 / 8; if (tmp < max_mbps) target_mbps = tmp; else -- 2.6.3
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