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From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= <linux@weissschuh.net>
Date: Sun, 26 May 2024 20:17:18 +0200
Subject: [PATCH v3 4/4] mfd: cros_ec: Register keyboard backlight subdevice
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Message-Id: <20240526-cros_ec-kbd-led-framework-v3-4-ee577415a521@weissschuh.net>
References: <20240526-cros_ec-kbd-led-framework-v3-0-ee577415a521@weissschuh.net>
In-Reply-To: <20240526-cros_ec-kbd-led-framework-v3-0-ee577415a521@weissschuh.net>
To: Lee Jones <lee@kernel.org>, Benson Leung <bleung@chromium.org>, 
 Guenter Roeck <groeck@chromium.org>, Tzung-Bi Shih <tzungbi@kernel.org>, 
 Pavel Machek <pavel@ucw.cz>
Cc: chrome-platform@lists.linux.dev, linux-kernel@vger.kernel.org, 
 Dustin Howett <dustin@howett.net>, 
 Mario Limonciello <mario.limonciello@amd.com>, linux-leds@vger.kernel.org, 
 Rajas Paranjpe <paranjperajas@gmail.com>, 
 =?utf-8?q?Thomas_Wei=C3=9Fschuh?= <linux@weissschuh.net>

Load cros_kbd_led_backlight when the EC reports EC_FEATURE_PWM_KEYB.
This makes cros_kbd_led_backlight work on machines without specific
ACPI or OF support for the keyboard backlight.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
---
 drivers/mfd/cros_ec_dev.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index a52d59cc2b1e..4444b361aeae 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -99,6 +99,10 @@ static const struct mfd_cell cros_ec_wdt_cells[] = {
 	{ .name = "cros-ec-wdt", }
 };
 
+static const struct mfd_cell cros_ec_keyboard_leds_cells[] = {
+	{ .name = "cros-keyboard-leds", },
+};
+
 static const struct cros_feature_to_cells cros_subdevices[] = {
 	{
 		.id		= EC_FEATURE_CEC,
@@ -125,6 +129,11 @@ static const struct cros_feature_to_cells cros_subdevices[] = {
 		.mfd_cells	= cros_ec_wdt_cells,
 		.num_cells	= ARRAY_SIZE(cros_ec_wdt_cells),
 	},
+	{
+		.id		= EC_FEATURE_PWM_KEYB,
+		.mfd_cells	= cros_ec_keyboard_leds_cells,
+		.num_cells	= ARRAY_SIZE(cros_ec_keyboard_leds_cells),
+	},
 };
 
 static const struct mfd_cell cros_ec_platform_cells[] = {

-- 
2.45.1