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Commit da5e36ae authored by Andrzej Hajda's avatar Andrzej Hajda Committed by Inki Dae
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drm/exynos/hdmi: simplify clock re-parenting 



Driver tries to disable sclk_hdmi during re-parenting, to avoid possible
glitches. It is ineffective as the clock is used also by other devices (mixer).
Anyway driver works without disabling sclk_hdmi.

Signed-off-by: default avatarAndrzej Hajda <a.hajda@samsung.com>
Signed-off-by: default avatarInki Dae <inki.dae@samsung.com>
parent 1ab739db

drivers/gpu/drm/exynos/exynos_hdmi.c

+0 −4
Original line number Diff line number Diff line
@@ -1569,9 +1569,7 @@ static void hdmi_mode_apply(struct hdmi_context *hdata) 


	hdmiphy_wait_for_pll(hdata);



	clk_disable_unprepare(hdata->res.sclk_hdmi);

	clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_hdmiphy);

	clk_prepare_enable(hdata->res.sclk_hdmi);



	/* enable HDMI and timing generator */

	hdmi_start(hdata, true);
@@ -1579,9 +1577,7 @@ static void hdmi_mode_apply(struct hdmi_context *hdata) 


static void hdmiphy_conf_reset(struct hdmi_context *hdata)

{

	clk_disable_unprepare(hdata->res.sclk_hdmi);

	clk_set_parent(hdata->res.mout_hdmi, hdata->res.sclk_pixel);

	clk_prepare_enable(hdata->res.sclk_hdmi);



	/* reset hdmiphy */

	hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);