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 v4 5/6] gpio: aspeed: Change the macro to support deferred probe
Date: Thu, 19 Sep 2024 17:43:38 +0800 [thread overview]
Message-ID: <20240919094339.2407641-6-billy_tsai@aspeedtech.com> (raw)
In-Reply-To: <20240919094339.2407641-1-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 060c0225cb99..c811e84db0b9 100644
--- a/drivers/gpio/gpio-aspeed.c
+++ b/drivers/gpio/gpio-aspeed.c
@@ -1282,7 +1282,7 @@ 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;
@@ -1382,13 +1382,14 @@ 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:[~2024-09-19 9:44 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-19 9:43 [PATCH v4 0/6] Add Aspeed G7 gpio support Billy Tsai
2024-09-19 9:43 ` [PATCH v4 1/6] dt-bindings: gpio: aspeed,ast2400-gpio: Support ast2700 Billy Tsai
2024-09-19 9:43 ` [PATCH v4 2/6] gpio: aspeed: Remove the name for bank array Billy Tsai
2024-09-19 9:43 ` [PATCH v4 3/6] gpio: aspeed: Create llops to handle hardware access Billy Tsai
2024-09-20 2:56 ` Andrew Jeffery
2024-09-20 9:19 ` Billy Tsai
2024-09-23 0:34 ` Andrew Jeffery
2024-09-23 2:20 ` Billy Tsai
2024-09-19 9:43 ` [PATCH v4 4/6] gpio: aspeed: Support G7 Aspeed gpio controller Billy Tsai
2024-09-19 9:43 ` Billy Tsai [this message]
2024-09-19 9:43 ` [PATCH v4 6/6] gpio: aspeed: Add the flush write to ensure the write complete Billy Tsai
2024-10-01 14:18 ` Linus Walleij
2024-10-02 10:27 ` Bartosz Golaszewski
2024-10-02 15:09 ` Billy Tsai
2024-10-02 15:48 ` Bartosz Golaszewski
2024-10-02 17:02 ` Billy Tsai
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