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Commit b474cbbb authored by Archit Taneja's avatar Archit Taneja Committed by Rob Clark
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drm/msm/hdmi: 8996 PLL: Populate unprepare 



Without doing anything in unprepare, the HDMI driver isn't able to
switch modes successfully. Calling set_rate with a new rate results
in an un-locked PLL.

If we reset the PLL in unprepare, the PLL is able to lock with the
new rate.

Signed-off-by: default avatarArchit Taneja <architt@codeaurora.org>
Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
parent ffe8f53f

drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c

+5 −0
Original line number Diff line number Diff line
@@ -670,6 +670,11 @@ static unsigned long hdmi_8996_pll_recalc_rate(struct clk_hw *hw, 


static void hdmi_8996_pll_unprepare(struct clk_hw *hw)

{

	struct hdmi_pll_8996 *pll = hw_clk_to_pll(hw);

	struct hdmi_phy *phy = pll_get_phy(pll);



	hdmi_phy_write(phy, REG_HDMI_8996_PHY_CFG, 0x6);

	usleep_range(100, 150);

}



static int hdmi_8996_pll_is_enabled(struct clk_hw *hw)