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drm/rockchip: dw-mipi-dsi: organize dw_mipi_dsi_get_hcomponent_lbcc function

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Use the common interface to calculate

Change-Id: I21836061d1442048efaba3b2930811b8a0aab0aa
Signed-off-by: xubilv <xbl@rock-chips.com>
This commit is contained in:
xubilv
2017-07-17 18:05:48 +08:00
committed by Huang, Tao
parent a96eb422ed
commit f797759ff5
1 changed files with 6 additions and 6 deletions
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12
drivers/gpu/drm/rockchip/dw-mipi-dsi.c
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@@ -808,16 +808,16 @@ static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
static u32 dw_mipi_dsi_get_hcomponent_lbcc(struct dw_mipi_dsi *dsi,
u32 hcomponent)
{
u32 frac, lbcc;
u32 lbcc;
lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
frac = lbcc % dsi->mode.clock;
lbcc = lbcc / dsi->mode.clock;
if (frac)
lbcc++;
if (dsi->mode.clock == 0) {
dev_err(dsi->dev, "dsi mode clock is 0!\n");
return 0;
}
return lbcc;
return DIV_ROUND_CLOSEST_ULL(lbcc, dsi->mode.clock);
}
static void dw_mipi_dsi_line_timer_config(struct dw_mipi_dsi *dsi)