Merge "mdss: dsi: turn off phy power supply during static screen" (7fc390b6) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/video/msm/mdss/mdss_dsi.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -540,6 +540,8 @@ struct mdss_dsi_ctrl_pdata {

		bool timing_db_mode;
		bool update_phy_timing; /* flag to recalculate PHY timings */

		bool phy_power_off;
		};

		struct dsi_status_data {

drivers/video/msm/mdss/msm_mdss_io_8974.c

+121 −11

Original line number	Diff line number	Diff line
		@@ -53,6 +53,9 @@
		#define DSIPHY_PLL_CLKBUFLR_EN 0x041c
		#define DSIPHY_PLL_PLL_BANDGAP 0x0508

		#define DSIPHY_LANE_STRENGTH_CTRL_1 0x003c
		#define DSIPHY_LANE_VREG_CNTRL 0x0064

		#define DSI_DYNAMIC_REFRESH_PLL_CTRL0 0x214
		#define DSI_DYNAMIC_REFRESH_PLL_CTRL1 0x218
		#define DSI_DYNAMIC_REFRESH_PLL_CTRL2 0x21C
		@@ -875,6 +878,92 @@ static void mdss_dsi_8996_phy_regulator_enable(

		}

		static void mdss_dsi_8996_phy_power_off(
		struct mdss_dsi_ctrl_pdata *ctrl)
		{
		int ln;
		void __iomem *base;

		MIPI_OUTP(ctrl->phy_io.base + DSIPHY_CMN_CTRL_0, 0x7f);

		/* 4 lanes + clk lane configuration */
		for (ln = 0; ln < 5; ln++) {
		base = ctrl->phy_io.base +
		DATALANE_OFFSET_FROM_BASE_8996;
		base += (ln * DATALANE_SIZE_8996); /* lane base */

		/* turn off phy ldo */
		MIPI_OUTP(base + DSIPHY_LANE_VREG_CNTRL, 0x1c);
		}
		MIPI_OUTP((ctrl->phy_io.base) + DSIPHY_CMN_LDO_CNTRL, 0x1c);

		/* 4 lanes + clk lane configuration */
		for (ln = 0; ln < 5; ln++) {
		base = ctrl->phy_io.base +
		DATALANE_OFFSET_FROM_BASE_8996;
		base += (ln * DATALANE_SIZE_8996); /* lane base */

		MIPI_OUTP(base + DSIPHY_LANE_STRENGTH_CTRL_1, 0x0);
		}

		wmb(); /* make sure registers committed */
		}

		static void mdss_dsi_phy_power_off(
		struct mdss_dsi_ctrl_pdata *ctrl)
		{
		if (ctrl->phy_power_off)
		return;

		/* supported for phy rev 2.0 */
		if (ctrl->shared_data->phy_rev != DSI_PHY_REV_20)
		return;

		mdss_dsi_8996_phy_power_off(ctrl);

		ctrl->phy_power_off = true;
		}

		static void mdss_dsi_8996_phy_power_on(
		struct mdss_dsi_ctrl_pdata *ctrl)
		{
		int j, off, ln, cnt, ln_off;
		void __iomem *base;
		struct mdss_dsi_phy_ctrl *pd;
		char *ip;

		pd = &(((ctrl->panel_data).panel_info.mipi).dsi_phy_db);

		/* 4 lanes + clk lane configuration */
		for (ln = 0; ln < 5; ln++) {
		base = ctrl->phy_io.base +
		DATALANE_OFFSET_FROM_BASE_8996;
		base += (ln * DATALANE_SIZE_8996); /* lane base */

		/* strength, 2 * 5 */
		cnt = 2;
		ln_off = cnt * ln;
		ip = &pd->strength[ln_off];
		off = 0x38;
		for (j = 0; j < cnt; j++, off += 4)
		MIPI_OUTP(base + off, *ip++);
		}

		mdss_dsi_8996_phy_regulator_enable(ctrl);
		}

		static void mdss_dsi_phy_power_on(
		struct mdss_dsi_ctrl_pdata *ctrl, bool mmss_clamp)
		{
		if (mmss_clamp && (ctrl->shared_data->phy_rev != DSI_PHY_REV_20))
		mdss_dsi_phy_init(ctrl);
		else if ((ctrl->shared_data->phy_rev == DSI_PHY_REV_20) &&
		ctrl->phy_power_off)
		mdss_dsi_8996_phy_power_on(ctrl);

		ctrl->phy_power_off = false;
		}

		static void mdss_dsi_8996_phy_config(struct mdss_dsi_ctrl_pdata *ctrl)
		{
		struct mdss_dsi_phy_ctrl *pd;
		@@ -1990,6 +2079,7 @@ int mdss_dsi_pre_clkoff_cb(void *priv,
		*/
		if ((ctrl->ctrl_state & CTRL_STATE_DSI_ACTIVE) \|\|
		pdata->panel_info.ulps_suspend_enabled) {
		mdss_dsi_phy_power_off(ctrl);
		rc = mdss_dsi_clamp_ctrl(ctrl, 1);
		if (rc)
		pr_err("%s: Failed to enable dsi clamps. rc=%d\n",
		@@ -2016,18 +2106,18 @@ int mdss_dsi_post_clkon_cb(void *priv,
		int rc = 0;
		struct mdss_panel_data *pdata = NULL;
		struct mdss_dsi_ctrl_pdata *ctrl = priv;
		bool mmss_clamp;

		pdata = &ctrl->panel_data;

		if (clk & MDSS_DSI_CORE_CLK) {
		mmss_clamp = ctrl->mmss_clamp;
		/*
		* Phy and controller setup is needed if coming out of idle
		* controller setup is needed if coming out of idle
		* power collapse with clamps enabled.
		*/
		if (ctrl->mmss_clamp) {
		mdss_dsi_phy_init(ctrl);
		if (mmss_clamp)
		mdss_dsi_ctrl_setup(ctrl);
		}

		if (ctrl->ulps) {
		/*
		@@ -2059,6 +2149,13 @@ int mdss_dsi_post_clkon_cb(void *priv,
		__func__, rc);
		goto error;
		}

		/*
		* Phy setup is needed if coming out of idle
		* power collapse with clamps enabled.
		*/
		if (ctrl->phy_power_off \|\| mmss_clamp)
		mdss_dsi_phy_power_on(ctrl, mmss_clamp);
		}
		if (clk & MDSS_DSI_LINK_CLK) {
		if (ctrl->ulps) {
		@@ -2095,8 +2192,18 @@ int mdss_dsi_post_clkoff_cb(void *priv,
		pdata = &ctrl->panel_data;

		for (i = DSI_MAX_PM - 1; i >= DSI_CORE_PM; i--) {
		if ((i != DSI_CORE_PM) &&
		(ctrl->ctrl_state & CTRL_STATE_DSI_ACTIVE))
		/*
		* if DSI state is active
		* 1. allow to turn off the core power module.
		* 2. allow to turn off phy power module if it is
		* turned off
		*
		* allow to turn off all power modules if DSI is not
		* active
		*/
		if ((ctrl->ctrl_state & CTRL_STATE_DSI_ACTIVE) &&
		(i != DSI_CORE_PM) &&
		(ctrl->phy_power_off && (i != DSI_PHY_PM)))
		continue;
		rc = msm_dss_enable_vreg(
		sdata->power_data[i].vreg_config,
		@@ -2138,15 +2245,18 @@ int mdss_dsi_pre_clkon_cb(void *priv,
		* 1.> PANEL_PM are controlled as part of
		* panel_power_ctrl. Needed not be handled here.
		* 2.> CORE_PM are controlled by dsi clk manager.
		* 2.> PHY_PM and CTRL_PM need to be enabled/disabled
		* 3.> CTRL_PM need to be enabled/disabled
		* only during unblank/blank. Their state should
		* not be changed during static screen.
		* 4.> PHY_PM can be turned enabled/disabled
		* if phy regulators are enabled/disabled.
		*/
		pr_debug("%s: Enable DSI core power\n", __func__);
		for (i = DSI_CORE_PM; i < DSI_MAX_PM; i++) {
		if ((i != DSI_CORE_PM) &&
		(ctrl->ctrl_state & CTRL_STATE_DSI_ACTIVE) &&
		!pdata->panel_info.cont_splash_enabled)
		if ((ctrl->ctrl_state & CTRL_STATE_DSI_ACTIVE) &&
		(!pdata->panel_info.cont_splash_enabled) &&
		(i != DSI_CORE_PM) &&
		(ctrl->phy_power_off && (i != DSI_PHY_PM)))
		continue;
		rc = msm_dss_enable_vreg(
		sdata->power_data[i].vreg_config,