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Commit 9096b60e authored by Shashank Babu Chinta Venkata's avatar Shashank Babu Chinta Venkata Committed by Gerrit - the friendly Code Review server
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drm/msm/dsi-staging: add software simulation of esd failure 



Add ability to simulate software success and failure of
esd status on panel.

Change-Id: I6ccd1a9673250774bfa5dced1f4cd6323f330ab0
Signed-off-by: default avatarShashank Babu Chinta Venkata <sbchin@codeaurora.org>
parent 823a48fe

drivers/gpu/drm/msm/dsi-staging/dsi_display.c

+20 −7
Original line number Diff line number Diff line
@@ -728,20 +728,25 @@ int dsi_display_check_status(struct drm_connector *connector, void *display, 


	if (!panel->panel_initialized) {

		pr_debug("Panel not initialized\n");

		dsi_panel_release_panel_lock(panel);

		return rc;

		goto release_panel_lock;

	}



	/* Prevent another ESD check,when ESD recovery is underway */

	if (atomic_read(&panel->esd_recovery_pending)) {

		dsi_panel_release_panel_lock(panel);

		return rc;

	if (atomic_read(&panel->esd_recovery_pending))

		goto release_panel_lock;



	status_mode = panel->esd_config.status_mode;



	if (status_mode == ESD_MODE_SW_SIM_SUCCESS)

		goto release_panel_lock;



	if (status_mode == ESD_MODE_SW_SIM_FAILURE) {

		rc = -EINVAL;

		goto release_panel_lock;

	}



	if (te_check_override && gpio_is_valid(dsi_display->disp_te_gpio))

		status_mode = ESD_MODE_PANEL_TE;

	else

		status_mode = panel->esd_config.status_mode;



	dsi_display_clk_ctrl(dsi_display->dsi_clk_handle,

		DSI_ALL_CLKS, DSI_CLK_ON);
@@ -774,6 +779,8 @@ int dsi_display_check_status(struct drm_connector *connector, void *display, 


	dsi_display_clk_ctrl(dsi_display->dsi_clk_handle,

		DSI_ALL_CLKS, DSI_CLK_OFF);



release_panel_lock:

	dsi_panel_release_panel_lock(panel);



	return rc;
@@ -1263,6 +1270,12 @@ static ssize_t debugfs_alter_esd_check_mode(struct file *file, 
			dsi_display_change_te_irq_status(display, false);

	}



	if (!strcmp(buf, "esd_sw_sim_success\n"))

		esd_config->status_mode = ESD_MODE_SW_SIM_SUCCESS;



	if (!strcmp(buf, "esd_sw_sim_failure\n"))

		esd_config->status_mode = ESD_MODE_SW_SIM_FAILURE;



	rc = len;

error:

	kfree(buf);

drivers/gpu/drm/msm/dsi-staging/dsi_panel.h

+2 −0
Original line number Diff line number Diff line
@@ -125,6 +125,8 @@ enum esd_check_status_mode { 
	ESD_MODE_REG_READ,

	ESD_MODE_SW_BTA,

	ESD_MODE_PANEL_TE,

	ESD_MODE_SW_SIM_SUCCESS,

	ESD_MODE_SW_SIM_FAILURE,

	ESD_MODE_MAX

};