Commit e92ce317 authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Rob Clark
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drm/msm/dsi_phy_10nm: implement PHY disabling 



Implement phy_disable() callback to disable DSI PHY lanes and blocks
when phy is not used.

Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: ff73ff19 ("drm/msm/dsi: Populate the 10nm PHY funcs")
Signed-off-by: default avatarRob Clark <robdclark@chromium.org>
parent b66ccc57

drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c

+22 −0
Original line number Diff line number Diff line
@@ -192,6 +192,28 @@ static int dsi_10nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id, 


static void dsi_10nm_phy_disable(struct msm_dsi_phy *phy)

{

	void __iomem *base = phy->base;

	u32 data;



	DBG("");



	if (dsi_phy_hw_v3_0_is_pll_on(phy))

		pr_warn("Turning OFF PHY while PLL is on\n");



	dsi_phy_hw_v3_0_config_lpcdrx(phy, false);

	data = dsi_phy_read(base + REG_DSI_10nm_PHY_CMN_CTRL_0);



	/* disable all lanes */

	data &= ~0x1F;

	dsi_phy_write(base + REG_DSI_10nm_PHY_CMN_CTRL_0, data);

	dsi_phy_write(base + REG_DSI_10nm_PHY_CMN_LANE_CTRL0, 0);



	/* Turn off all PHY blocks */

	dsi_phy_write(base + REG_DSI_10nm_PHY_CMN_CTRL_0, 0x00);

	/* make sure phy is turned off */

	wmb();



	DBG("DSI%d PHY disabled", phy->id);

}



static int dsi_10nm_phy_init(struct msm_dsi_phy *phy)