Commit 0e81798e authored by Tomi Valkeinen's avatar Tomi Valkeinen

drm/omap: remove divider constraint from hsdiv

The driver only uses even dividers for hsdiv when pclk >= 100MHz, as odd
dividers can create uneven duty cycle. However, while this holds true
for some dividers like DISPC's LCK and PCK dividers, it is not actually
true for hsdiv.

hsdiv always produces even duty cycle, so the constraint can be removed.
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
parent 7e3d9274
...@@ -170,14 +170,6 @@ static bool dpi_calc_hsdiv_cb(int m_dispc, unsigned long dispc, ...@@ -170,14 +170,6 @@ static bool dpi_calc_hsdiv_cb(int m_dispc, unsigned long dispc,
{ {
struct dpi_clk_calc_ctx *ctx = data; struct dpi_clk_calc_ctx *ctx = data;
/*
* Odd dividers give us uneven duty cycle, causing problem when level
* shifted. So skip all odd dividers when the pixel clock is on the
* higher side.
*/
if (m_dispc > 1 && m_dispc % 2 != 0 && ctx->pck_min >= 100000000)
return false;
ctx->pll_cinfo.mX[ctx->clkout_idx] = m_dispc; ctx->pll_cinfo.mX[ctx->clkout_idx] = m_dispc;
ctx->pll_cinfo.clkout[ctx->clkout_idx] = dispc; ctx->pll_cinfo.clkout[ctx->clkout_idx] = dispc;
......
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