linux-kernel - [PATCH] platform/loongarch: laptop: Adjust resume order for loongson_hotkey

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Message-Id: <20221027125047.3450683-1-chenhuacai@loongson.cn>
Date:   Thu, 27 Oct 2022 20:50:47 +0800
From:   Huacai Chen <chenhuacai@...ngson.cn>
To:     Huacai Chen <chenhuacai@...nel.org>
Cc:     loongarch@...ts.linux.dev, Xuefeng Li <lixuefeng@...ngson.cn>,
        Guo Ren <guoren@...nel.org>, Xuerui Wang <kernel@...0n.name>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        linux-kernel@...r.kernel.org, Huacai Chen <chenhuacai@...ngson.cn>
Subject: [PATCH] platform/loongarch: laptop: Adjust resume order for loongson_hotkey_resume()

Some laptops don't support SW_LID, but still have backlight control,
move backlight resuming before SW_LID event handling so as to avoid
backlight mistake due to early return.

Signed-off-by: Huacai Chen <chenhuacai@...ngson.cn>
---
 drivers/platform/loongarch/loongson-laptop.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/loongarch/loongson-laptop.c b/drivers/platform/loongarch/loongson-laptop.c
index f0166ad5d2c2..0e6f4efe21e5 100644
--- a/drivers/platform/loongarch/loongson-laptop.c
+++ b/drivers/platform/loongarch/loongson-laptop.c
@@ -199,6 +199,13 @@ static int loongson_hotkey_resume(struct device *dev)
 	struct key_entry ke;
 	struct backlight_device *bd;
 
+	bd = backlight_device_get_by_type(BACKLIGHT_PLATFORM);
+	if (bd) {
+		loongson_laptop_backlight_update(bd) ?
+		pr_warn("Loongson_backlight: resume brightness failed") :
+		pr_info("Loongson_backlight: resume brightness %d\n", bd->props.brightness);
+	}
+
 	/*
 	 * Only if the firmware supports SW_LID event model, we can handle the
 	 * event. This is for the consideration of development board without EC.
@@ -228,13 +235,6 @@ static int loongson_hotkey_resume(struct device *dev)
 		}
 	}
 
-	bd = backlight_device_get_by_type(BACKLIGHT_PLATFORM);
-	if (bd) {
-		loongson_laptop_backlight_update(bd) ?
-		pr_warn("Loongson_backlight: resume brightness failed") :
-		pr_info("Loongson_backlight: resume brightness %d\n", bd->props.brightness);
-	}
-
 	return 0;
 }
 
-- 
2.31.1