linux-kernel - [PATCH v2 2/3] regulator: mt6358: Add OF match table

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Message-Id: <20210109112612.1221-2-matthias.bgg@kernel.org>
Date:   Sat,  9 Jan 2021 12:26:10 +0100
From:   matthias.bgg@...nel.org
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>
Cc:     Hsin-Hsiung Wang <hsin-hsiung.wang@...iatek.com>,
        Axel Lin <axel.lin@...ics.com>,
        Chen Zhong <chen.zhong@...iatek.com>,
        Gene Chen <gene_chen@...htek.com>,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        Matthias Brugger <matthias.bgg@...il.com>,
        Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
        Matthias Brugger <mbrugger@...e.com>
Subject: [PATCH v2 2/3] regulator: mt6358: Add OF match table

From: Matthias Brugger <mbrugger@...e.com>

The binding documentation mentions that a compatible is required for the
MT6358 device node. But the driver does not provide a OF match table.
This way auto-loading is broken as the MFD driver that registers the
device has a .of_compatible set which makes the platform .uevent
callback report a OF modalias, but that's not in the module.

Fixes: f67ff1bd58f0 ("regulator: mt6358: Add support for MT6358 regulator")
Signed-off-by: Matthias Brugger <mbrugger@...e.com>

---

Changes in v2:
- check for CONFIG_OF
- add Fixes tag

 drivers/regulator/mt6358-regulator.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c
index 13cb6ac9a892..a4ed19a54ec6 100644
--- a/drivers/regulator/mt6358-regulator.c
+++ b/drivers/regulator/mt6358-regulator.c
@@ -534,9 +534,18 @@ static const struct platform_device_id mt6358_platform_ids[] = {
 };
 MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
 
+#ifdef CONFIG_OF
+static const struct of_device_id mt6358_of_match[] = {
+	{ .compatible = "mediatek,mt6358-regulator", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, mt6358_of_match);
+#endif
+
 static struct platform_driver mt6358_regulator_driver = {
 	.driver = {
 		.name = "mt6358-regulator",
+		.of_match_table = of_match_ptr(mt6358_of_match),
 	},
 	.probe = mt6358_regulator_probe,
 	.id_table = mt6358_platform_ids,
-- 
2.29.2