From: Yunhee Seo <yuni.seo@samsung.com>
Date: Wed, 5 Mar 2025 11:27:43 +0000 (+0900)
Subject: device-display: Add device brightness node creation condition log
X-Git-Tag: accepted/tizen/unified/20250306.094546^0
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=refs%2Fheads%2Ftizen;p=platform%2Fhal%2Fbackend%2Frpi%2Fdevice-rpi.git

device-display: Add device brightness node creation condition log

In this hal-backend-device-rpi, using brightness node is created from
MIPI Interface Display.
Other than, brightness node won't be created.
To figure out brightness node creation, this log is necessary.

Change-Id: I78ef4fedaef85cce32b4789f52ab7e07c6d097e3
Signed-off-by: Yunhee Seo <yuni.seo@samsung.com>
---

diff --git a/hw/display/display.c b/hw/display/display.c
index e4c9fe0..346f63f 100644
--- a/hw/display/display.c
+++ b/hw/display/display.c
@@ -22,6 +22,8 @@
 #include <string.h>
 #include <errno.h>
 #include <linux/limits.h>
+#include <unistd.h>
+#include <dirent.h>
 
 #include <hal/hal-device-display-interface.h>
 #include <hal/hal-common-interface.h>
@@ -44,6 +46,9 @@ static int display_get_max_brightness(int *val)
 	if (!val)
 		return -EINVAL;
 
+	if (access(BACKLIGHT_PATH"/max_brightness", F_OK) != 0)
+		_W("%s node is created from MIPI Interface Display", BACKLIGHT_PATH"/max_brightness");
+
 	if (max < 0) {
 		r = sysfs_read_int(BACKLIGHT_PATH"/max_brightness", &max);
 		if (r < 0)
@@ -63,6 +68,9 @@ static int display_get_brightness(int *brightness)
 		return -EINVAL;
 	}
 
+	if (access(BACKLIGHT_PATH"/brightness", F_OK) != 0)
+		_W("%s node is created from MIPI Interface Display", BACKLIGHT_PATH"/brightness");
+
 	r = sysfs_read_int(BACKLIGHT_PATH"/brightness", &v);
 	if (r < 0) {
 		_E("fail to get brightness (errno:%d)", r);
@@ -88,6 +96,9 @@ static int display_set_brightness(int brightness)
 		return -EINVAL;
 	}
 
+	if (access(BACKLIGHT_PATH"/brightness", F_OK) != 0)
+		_W("%s node is created from MIPI Interface Display", BACKLIGHT_PATH"/brightness");
+
 	r = sysfs_write_int(BACKLIGHT_PATH"/brightness", brightness);
 	if (r < 0) {
 		_E("fail to set brightness (errno:%d)", r);