linux-kernel - [PATCH] mfd: axp20x: Allow the AXP223 to be probed by i2c

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Date:   Mon, 18 Mar 2019 13:55:48 +0100
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Chen-Yu Tsai <wens@...e.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: axp20x: Allow the AXP223 to be probed by i2c

The AXP223 can be used both using the RSB proprietary bus, or a more
traditional I2C bus. The RSB is a faster bus and provides more features
(like some integrity checks on the messages), so it's usually preferrable
to use it, but since it's proprietary, when we want to use the PMIC in a
multi-master setup, the i2c might make sense as well.

Let's add that possibility.

Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>
---
 drivers/mfd/axp20x-i2c.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mfd/axp20x-i2c.c b/drivers/mfd/axp20x-i2c.c
index a7b7c5423ea5..c2e8a0dee7f8 100644
--- a/drivers/mfd/axp20x-i2c.c
+++ b/drivers/mfd/axp20x-i2c.c
@@ -65,6 +65,7 @@ static const struct of_device_id axp20x_i2c_of_match[] = {
 	{ .compatible = "x-powers,axp202", .data = (void *)AXP202_ID },
 	{ .compatible = "x-powers,axp209", .data = (void *)AXP209_ID },
 	{ .compatible = "x-powers,axp221", .data = (void *)AXP221_ID },
+	{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
 	{ .compatible = "x-powers,axp806", .data = (void *)AXP806_ID },
 	{ },
 };
@@ -75,6 +76,7 @@ static const struct i2c_device_id axp20x_i2c_id[] = {
 	{ "axp202", 0 },
 	{ "axp209", 0 },
 	{ "axp221", 0 },
+	{ "axp223", 0 },
 	{ "axp806", 0 },
 	{ },
 };
-- 
2.20.1