Merge "disp: msm: dsi: Handle GDSC PM in pre/post clk on/off" (c5328d54) · Commits · e / devices / android_kernel_fairphone_FP4

msm/dsi/dsi_clk_manager.c

+2 −20

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* Copyright (c) 2016-2019, The Linux Foundation. All rights reserved.
		* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
		*/

		#include <linux/of.h>
		@@ -604,16 +604,10 @@ static int dsi_display_core_clk_enable(struct dsi_core_clks *clks,

		m_clks = &clks[master_ndx];

		rc = pm_runtime_get_sync(m_clks->clks.drm->dev);
		if (rc < 0) {
		DSI_ERR("Power resource enable failed, rc=%d\n", rc);
		goto error;
		}

		rc = dsi_core_clk_start(m_clks);
		if (rc) {
		DSI_ERR("failed to turn on master clocks, rc=%d\n", rc);
		goto error_disable_master_resource;
		goto error;
		}

		/* Turn on rest of the core clocks */
		@@ -622,16 +616,9 @@ static int dsi_display_core_clk_enable(struct dsi_core_clks *clks,
		if (!clk \|\| (clk == m_clks))
		continue;

		rc = pm_runtime_get_sync(m_clks->clks.drm->dev);
		if (rc < 0) {
		DSI_ERR("Power resource enable failed, rc=%d\n", rc);
		goto error_disable_master;
		}

		rc = dsi_core_clk_start(clk);
		if (rc) {
		DSI_ERR("failed to turn on clocks, rc=%d\n", rc);
		pm_runtime_put_sync(m_clks->clks.drm->dev);
		goto error_disable_master;
		}
		}
		@@ -639,8 +626,6 @@ static int dsi_display_core_clk_enable(struct dsi_core_clks *clks,
		error_disable_master:
		(void)dsi_core_clk_stop(m_clks);

		error_disable_master_resource:
		pm_runtime_put_sync(m_clks->clks.drm->dev);
		error:
		return rc;
		}
		@@ -741,8 +726,6 @@ static int dsi_display_core_clk_disable(struct dsi_core_clks *clks,
		DSI_DEBUG("failed to turn off clocks, rc=%d\n", rc);
		goto error;
		}

		pm_runtime_put_sync(m_clks->clks.drm->dev);
		}

		rc = dsi_core_clk_stop(m_clks);
		@@ -751,7 +734,6 @@ static int dsi_display_core_clk_disable(struct dsi_core_clks *clks,
		goto error;
		}

		pm_runtime_put_sync(m_clks->clks.drm->dev);
		error:
		return rc;
		}

msm/dsi/dsi_ctrl.c

+17 −2

Original line number	Diff line number	Diff line
		@@ -990,12 +990,19 @@ static int dsi_ctrl_enable_supplies(struct dsi_ctrl *dsi_ctrl, bool enable)
		int rc = 0;

		if (enable) {
		rc = pm_runtime_get_sync(dsi_ctrl->drm_dev->dev);
		if (rc < 0) {
		DSI_CTRL_ERR(dsi_ctrl,
		"Power resource enable failed, rc=%d\n", rc);
		goto error;
		}

		if (!dsi_ctrl->current_state.host_initialized) {
		rc = dsi_pwr_enable_regulator(
		&dsi_ctrl->pwr_info.host_pwr, true);
		if (rc) {
		DSI_CTRL_ERR(dsi_ctrl, "failed to enable host power regs\n");
		goto error;
		goto error_get_sync;
		}
		}

		@@ -1008,8 +1015,9 @@ static int dsi_ctrl_enable_supplies(struct dsi_ctrl *dsi_ctrl, bool enable)
		&dsi_ctrl->pwr_info.host_pwr,
		false
		);
		goto error;
		goto error_get_sync;
		}
		return rc;
		} else {
		rc = dsi_pwr_enable_regulator(&dsi_ctrl->pwr_info.digital,
		false);
		@@ -1027,7 +1035,14 @@ static int dsi_ctrl_enable_supplies(struct dsi_ctrl *dsi_ctrl, bool enable)
		goto error;
		}
		}
		rc = pm_runtime_put_sync(dsi_ctrl->drm_dev->dev);
		if (rc < 0)
		DSI_CTRL_ERR(dsi_ctrl,
		"Power resource disable failed, rc=%d\n", rc);
		return rc;
		}
		error_get_sync:
		pm_runtime_put_sync(dsi_ctrl->drm_dev->dev);
		error:
		return rc;
		}

msm/dsi/dsi_display.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -3471,8 +3471,7 @@ int dsi_pre_clkon_cb(void *priv,
		* Enable DSI core power
		* 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.
		* 3.> CTRL_PM need to be enabled/disabled
		* 2.> CTRL_PM need to be enabled/disabled
		* only during unblank/blank. Their state should
		* not be changed during static screen.
		*/
		@@ -5101,6 +5100,7 @@ static int dsi_display_bind(struct device *dev,

		display_for_each_ctrl(i, display) {
		display_ctrl = &display->ctrl[i];
		display_ctrl->ctrl->drm_dev = drm;

		if (!display_ctrl->phy \|\| !display_ctrl->ctrl)
		continue;