linux-kernel - [PATCH 3/4] backlight: ipaq

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Date:   Tue,  7 Jun 2022 21:09:24 +0200
From:   Stephen Kitt <steve@....org>
To:     Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>, Helge Deller <deller@....de>
Cc:     dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Stephen Kitt <steve@....org>
Subject: [PATCH 3/4] backlight: ipaq_micro: Use backlight helper

Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.

Signed-off-by: Stephen Kitt <steve@....org>
Cc: Lee Jones <lee.jones@...aro.org>
Cc: Daniel Thompson <daniel.thompson@...aro.org>
Cc: Jingoo Han <jingoohan1@...il.com>
Cc: Helge Deller <deller@....de>
Cc: dri-devel@...ts.freedesktop.org
Cc: linux-fbdev@...r.kernel.org
---
 drivers/video/backlight/ipaq_micro_bl.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/video/backlight/ipaq_micro_bl.c b/drivers/video/backlight/ipaq_micro_bl.c
index 85b16cc82878..f595b8c8cbb2 100644
--- a/drivers/video/backlight/ipaq_micro_bl.c
+++ b/drivers/video/backlight/ipaq_micro_bl.c
@@ -16,17 +16,12 @@
 static int micro_bl_update_status(struct backlight_device *bd)
 {
 	struct ipaq_micro *micro = dev_get_drvdata(&bd->dev);
-	int intensity = bd->props.brightness;
+	int intensity = backlight_get_brightness(bd);
 	struct ipaq_micro_msg msg = {
 		.id = MSG_BACKLIGHT,
 		.tx_len = 3,
 	};
 
-	if (bd->props.power != FB_BLANK_UNBLANK)
-		intensity = 0;
-	if (bd->props.state & (BL_CORE_FBBLANK | BL_CORE_SUSPENDED))
-		intensity = 0;
-
 	/*
 	 * Message format:
 	 * Byte 0: backlight instance (usually 1)
-- 
2.30.2