Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 7b76eb58 authored by Satya Rama Aditya Pinapala's avatar Satya Rama Aditya Pinapala
Browse files

disp: msm: dsi: deny an ESD trigger when not enabled 



During an ESD trigger, a check must be done to ensure
that ESD is enabled on the particular panel. If not the
panel might end up in a bad state, if the trigger is
propagated successfully instead of reporting a failure.

Change-Id: I310578e7136301ab75ba7f44f14d36ed7e6a519c
Signed-off-by: default avatarSatya Rama Aditya Pinapala <psraditya30@codeaurora.org>
parent a6bfb7fc

msm/dsi/dsi_display.c

+6 −0
Original line number Original line Diff line number Diff line
@@ -1259,6 +1259,7 @@ static ssize_t debugfs_esd_trigger_check(struct file *file, 
	struct dsi_display *display = file->private_data;

	struct dsi_display *display = file->private_data;

	char *buf;

	char *buf;

	int rc = 0;

	int rc = 0;

	struct drm_panel_esd_config *esd_config = &display->panel->esd_config;

	u32 esd_trigger;

	u32 esd_trigger;

	size_t len;

	size_t len;
@@ -1278,6 +1279,11 @@ static ssize_t debugfs_esd_trigger_check(struct file *file, 
		atomic_read(&display->panel->esd_recovery_pending))

		atomic_read(&display->panel->esd_recovery_pending))

		return user_len;

		return user_len;





	if (!esd_config->esd_enabled) {

		DSI_ERR("ESD feature is not enabled\n");

		return -EINVAL;

	}



	buf = kzalloc(ESD_TRIGGER_STRING_MAX_LEN, GFP_KERNEL);

	buf = kzalloc(ESD_TRIGGER_STRING_MAX_LEN, GFP_KERNEL);

	if (!buf)

	if (!buf)

		return -ENOMEM;

		return -ENOMEM;