linux-kernel - [PATCHv4 wireless-next 3/7] wifi: rt2800soc: allow loading from OF

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Message-ID: <20250712210448.429318-4-rosenp@gmail.com>
Date: Sat, 12 Jul 2025 14:04:44 -0700
From: Rosen Penev <rosenp@...il.com>
To: linux-wireless@...r.kernel.org
Cc: Johannes Berg <johannes@...solutions.net>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Stanislaw Gruszka <stf_xl@...pl>,
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list),
	linux-mips@...r.kernel.org (open list:MIPS),
	linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Mediatek SoC support),
	linux-mediatek@...ts.infradead.org (moderated list:ARM/Mediatek SoC support)
Subject: [PATCHv4 wireless-next 3/7] wifi: rt2800soc: allow loading from OF

Add a single binding to help the already present dts files load the
driver. More are possible but there doesn't seem to be a significant
difference between them to justify this.

Use wifi name per dtschema requirements.

The data field will be used to remove the custom non static probe
function and use of_device_get_match_data.

Added OF dependency to SOC CONFIG as adding of_match_table without OF
being present makes no sense.

Signed-off-by: Rosen Penev <rosenp@...il.com>
Reviewed-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
---
 drivers/net/wireless/ralink/rt2x00/Kconfig     | 2 +-
 drivers/net/wireless/ralink/rt2x00/rt2800soc.c | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ralink/rt2x00/Kconfig b/drivers/net/wireless/ralink/rt2x00/Kconfig
index 3a32ceead54f..a0dc9a751234 100644
--- a/drivers/net/wireless/ralink/rt2x00/Kconfig
+++ b/drivers/net/wireless/ralink/rt2x00/Kconfig
@@ -202,7 +202,7 @@ endif
 
 config RT2800SOC
 	tristate "Ralink WiSoC support"
-	depends on SOC_RT288X || SOC_RT305X || SOC_MT7620 || COMPILE_TEST
+	depends on OF && (SOC_RT288X || SOC_RT305X || SOC_MT7620 || COMPILE_TEST)
 	select RT2X00_LIB_SOC
 	select RT2X00_LIB_MMIO
 	select RT2X00_LIB_CRYPTO
diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800soc.c b/drivers/net/wireless/ralink/rt2x00/rt2800soc.c
index e73394cf6ea6..db8d01f0cdc3 100644
--- a/drivers/net/wireless/ralink/rt2x00/rt2800soc.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2800soc.c
@@ -243,9 +243,16 @@ static int rt2800soc_probe(struct platform_device *pdev)
 	return rt2x00soc_probe(pdev, &rt2800soc_ops);
 }
 
+static const struct of_device_id rt2880_wmac_match[] = {
+	{ .compatible = "ralink,rt2880-wifi", .data = &rt2800soc_ops },
+	{},
+};
+MODULE_DEVICE_TABLE(of, rt2880_wmac_match);
+
 static struct platform_driver rt2800soc_driver = {
 	.driver		= {
 		.name		= "rt2800_wmac",
+		.of_match_table = rt2880_wmac_match,
 	},
 	.probe		= rt2800soc_probe,
 	.remove		= rt2x00soc_remove,
-- 
2.50.0