linux-kernel - [PATCH 2/4] gpio: aspeed: Simplify with of_device_get_match

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Message-Id: <20251106-gpio-of-match-v1-2-50c7115a045e@linaro.org>
Date: Thu, 06 Nov 2025 17:16:26 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Joel Stanley <joel@....id.au>, 
 Andrew Jeffery <andrew@...econstruct.com.au>, 
 Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>, 
 Shubhrajyoti Datta <shubhrajyoti.datta@....com>, 
 Srinivas Neeli <srinivas.neeli@....com>, 
 Michal Simek <michal.simek@....com>
Cc: linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-aspeed@...ts.ozlabs.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 2/4] gpio: aspeed: Simplify with of_device_get_match_data()

Driver's probe function matches against driver's of_device_id table,
where each entry has non-NULL match data, so of_match_node() can be
simplified with of_device_get_match_data().

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/gpio/gpio-aspeed.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index 2e0ae953dd99..3d675b63936c 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -1305,7 +1305,6 @@ MODULE_DEVICE_TABLE(of, aspeed_gpio_of_table);
 
 static int aspeed_gpio_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *gpio_id;
 	struct gpio_irq_chip *girq;
 	struct aspeed_gpio *gpio;
 	int rc, irq, i, banks, err;
@@ -1323,8 +1322,8 @@ static int aspeed_gpio_probe(struct platform_device *pdev)
 
 	raw_spin_lock_init(&gpio->lock);
 
-	gpio_id = of_match_node(aspeed_gpio_of_table, pdev->dev.of_node);
-	if (!gpio_id)
+	gpio->config = of_device_get_match_data(&pdev->dev);
+	if (!gpio->config)
 		return -EINVAL;
 
 	gpio->clk = devm_clk_get_enabled(&pdev->dev, NULL);
@@ -1334,8 +1333,6 @@ static int aspeed_gpio_probe(struct platform_device *pdev)
 		gpio->clk = NULL;
 	}
 
-	gpio->config = gpio_id->data;
-
 	if (!gpio->config->llops->reg_bit_set || !gpio->config->llops->reg_bit_get ||
 	    !gpio->config->llops->reg_bank_get)
 		return -EINVAL;

-- 
2.48.1