From: Billy Tsai <billy_tsai@aspeedtech.com>
To: <linus.walleij@linaro.org>, <brgl@bgdev.pl>, <robh@kernel.org>,
<krzk+dt@kernel.org>, <conor+dt@kernel.org>, <joel@jms.id.au>,
<andrew@codeconstruct.com.au>, <linux-gpio@vger.kernel.org>,
<devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-aspeed@lists.ozlabs.org>, <linux-kernel@vger.kernel.org>,
<BMC-SW@aspeedtech.com>, <Peter.Yin@quantatw.com>,
<Jay_Zhang@wiwynn.com>
Subject: [PATCH v6 5/7] gpio: aspeed: Change the macro to support deferred probe
Date: Fri, 27 Sep 2024 19:17:42 +0800 [thread overview]
Message-ID: <20240927111744.3511373-6-billy_tsai@aspeedtech.com> (raw)
In-Reply-To: <20240927111744.3511373-1-billy_tsai@aspeedtech.com>
Use module_platform_driver() to replace module_platform_driver_probe().
The former utilizes platform_driver_register(), which allows the driver to
defer probing when it doesn't acquire the necessary resources due to probe
order. In contrast, the latter uses __platform_driver_probe(), which
includes the comment "Note that this is incompatible with deferred
probing." Since our GPIO driver requires access to the clock resource, the
former is more suitable.
Signed-off-by: Billy Tsai <billy_tsai@aspeedtech.com>
---
drivers/gpio/gpio-aspeed.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-aspeed.c b/drivers/gpio/gpio-aspeed.c
index 1be9a7aa9e8b..d6a35e230370 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -1313,7 +1313,7 @@ static const struct of_device_id aspeed_gpio_of_table[] = {
};
MODULE_DEVICE_TABLE(of, aspeed_gpio_of_table);
-static int __init aspeed_gpio_probe(struct platform_device *pdev)
+static int aspeed_gpio_probe(struct platform_device *pdev)
{
const struct of_device_id *gpio_id;
struct gpio_irq_chip *girq;
@@ -1414,13 +1414,14 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
}
static struct platform_driver aspeed_gpio_driver = {
+ .probe = aspeed_gpio_probe,
.driver = {
.name = KBUILD_MODNAME,
.of_match_table = aspeed_gpio_of_table,
},
};
-module_platform_driver_probe(aspeed_gpio_driver, aspeed_gpio_probe);
+module_platform_driver(aspeed_gpio_driver);
MODULE_DESCRIPTION("Aspeed GPIO Driver");
MODULE_LICENSE("GPL");
--
2.25.1
next prev parent reply other threads:[~2024-09-27 11:18 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-27 11:17 [PATCH v6 0/7] Add Aspeed G7 gpio support Billy Tsai
2024-09-27 11:17 ` [PATCH v6 1/7] dt-bindings: gpio: aspeed,ast2400-gpio: Support ast2700 Billy Tsai
2024-09-27 11:17 ` [PATCH v6 2/7] gpio: aspeed: Remove the name for bank array Billy Tsai
2024-09-27 11:17 ` [PATCH v6 3/7] gpio: aspeed: Create llops to handle hardware access Billy Tsai
2024-09-30 4:00 ` Andrew Jeffery
2024-09-27 11:17 ` [PATCH v6 4/7] gpio: aspeed: Support G7 Aspeed gpio controller Billy Tsai
2024-09-30 4:04 ` Andrew Jeffery
2024-09-27 11:17 ` Billy Tsai [this message]
2024-09-30 4:37 ` [PATCH v6 5/7] gpio: aspeed: Change the macro to support deferred probe Andrew Jeffery
2024-09-27 11:17 ` [PATCH v6 6/7] gpio: aspeed: Add the flush write to ensure the write complete Billy Tsai
2024-09-30 4:38 ` Andrew Jeffery
2024-09-27 11:17 ` [PATCH v6 7/7] gpio: aspeed: Use devm_clk api to manage clock source Billy Tsai
2024-09-30 4:42 ` Andrew Jeffery
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