linux-kernel - [PATCH v2 2/2] mfd: cgbc: Add support for backlight

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Message-Id: <20251119-cgbc-backlight-v2-2-4d4edd7ca662@novatron.fi>
Date: Wed, 19 Nov 2025 08:25:47 +0000
From: Petri Karhula via B4 Relay <devnull+petri.karhula.novatron.fi@...nel.org>
To: Thomas Richard <thomas.richard@...tlin.com>, Lee Jones <lee@...nel.org>, 
 Daniel Thompson <danielt@...nel.org>, Jingoo Han <jingoohan1@...il.com>, 
 Helge Deller <deller@....de>
Cc: linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 linux-fbdev@...r.kernel.org, Petri Karhula <petri.karhula@...atron.fi>
Subject: [PATCH v2 2/2] mfd: cgbc: Add support for backlight

From: Petri Karhula <petri.karhula@...atron.fi>

The Board Controller has control for display backlight.
Add backlight cell for the cgbc-backlight driver which
adds support for backlight brightness control.

Signed-off-by: Petri Karhula <petri.karhula@...atron.fi>
---
 drivers/mfd/cgbc-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/cgbc-core.c b/drivers/mfd/cgbc-core.c
index 4782ff1114a9..10bb4b414c34 100644
--- a/drivers/mfd/cgbc-core.c
+++ b/drivers/mfd/cgbc-core.c
@@ -237,6 +237,7 @@ static struct mfd_cell cgbc_devs[] = {
 	{ .name = "cgbc-i2c", .id = 1 },
 	{ .name = "cgbc-i2c", .id = 2 },
 	{ .name = "cgbc-hwmon"	},
+	{ .name = "cgbc-backlight" },
 };
 
 static int cgbc_map(struct cgbc_device_data *cgbc)

-- 
2.34.1