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disp: msm: dp: log the status of the uevent

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Log the status of the call to kobject_uevent_env so we know
whether the uevent was sent successfully to the userspace.

Change-Id: I4fd5f9b51d9771dab399e322d678411f824c8aba
Signed-off-by: Tatenda Chipeperekwa <tatendac@codeaurora.org>
This commit is contained in:
Tatenda Chipeperekwa 2020-06-12 11:47:55 -07:00
commit 3efe89facb
1 changed files with 11 additions and 4 deletions
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15
msm/dp/dp_display.c
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@ -732,6 +732,7 @@ static void dp_display_send_hpd_event(struct dp_display_private *dp)
char name[HPD_STRING_SIZE], status[HPD_STRING_SIZE],
bpp[HPD_STRING_SIZE], pattern[HPD_STRING_SIZE];
char *envp[5];
int rc = 0;
if (dp->mst.mst_active) {
DP_DEBUG("skip notification for mst mode\n");
@ -757,6 +758,11 @@ static void dp_display_send_hpd_event(struct dp_display_private *dp)
dev = connector->dev;
if (dp->debug->skip_uevent) {
DP_INFO("skipping uevent\n");
goto update_state;
}
snprintf(name, HPD_STRING_SIZE, "name=%s", connector->name);
snprintf(status, HPD_STRING_SIZE, "status=%s",
drm_get_connector_status_name(connector->status));
@ -766,16 +772,17 @@ static void dp_display_send_hpd_event(struct dp_display_private *dp)
snprintf(pattern, HPD_STRING_SIZE, "pattern=%d",
dp->link->test_video.test_video_pattern);
DP_DEBUG("[%s]:[%s] [%s] [%s]\n", name, status, bpp, pattern);
DP_INFO("[%s]:[%s] [%s] [%s]\n", name, status, bpp, pattern);
envp[0] = name;
envp[1] = status;
envp[2] = bpp;
envp[3] = pattern;
envp[4] = NULL;
if (!dp->debug->skip_uevent)
kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE,
envp);
rc = kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp);
DP_INFO("uevent %s: %d\n", rc ? "failure" : "success", rc);
update_state:
if (connector->status == connector_status_connected) {
dp_display_state_add(DP_STATE_CONNECT_NOTIFIED);
dp_display_state_remove(DP_STATE_DISCONNECT_NOTIFIED);