diff options
| author | Archit Taneja <architt@codeaurora.org> | 2016-11-30 10:40:30 +0530 |
|---|---|---|
| committer | Archit Taneja <architt@codeaurora.org> | 2017-01-10 18:28:36 +0530 |
| commit | 71401a1779df8b80c33745285679bf7a041a10e0 (patch) | |
| tree | e2d61ca67b005b9fd117abd828e295816818f83d | |
| parent | 49b102405b4b0c9b538ec422149c4b2e6b558d9a (diff) | |
drm/msm/hdmi: 8996 PLL: Populate unpreparetracking-qcomlt-drm-msm-v4.9
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: Archit Taneja <architt@codeaurora.org>
| -rw-r--r-- | drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c b/drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c index 143eab46ba687..f8e88d45dd237 100644 --- a/drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c +++ b/drivers/gpu/drm/msm/hdmi/hdmi_phy_8996.c @@ -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); + udelay(100); } static int hdmi_8996_pll_is_enabled(struct clk_hw *hw) |