[PATCH v3 2/4] irqchip/qcom-pdc: Switch to using IRQCHIP_PLATFORM_DRIVER helper macros

From: Saravana Kannan <saravanak@google.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Jason Cooper <jason@lakedaemon.net>,
	Marc Zyngier <maz@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Saravana Kannan <saravanak@google.com>,
	kernel-team@android.com, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org,
	linux-arm-msm@vger.kernel.org,
	John Stultz <john.stultz@linaro.org>,
	Hanks Chen <hanks.chen@mediatek.com>,
	CC Hwang <cc.hwang@mediatek.com>,
	Loda Chou <loda.chou@mediatek.com>
Subject: [PATCH v3 2/4] irqchip/qcom-pdc: Switch to using IRQCHIP_PLATFORM_DRIVER helper macros
Date: Fri, 17 Jul 2020 17:06:35 -0700	[thread overview]
Message-ID: <20200718000637.3632841-3-saravanak@google.com> (raw)
In-Reply-To: <20200718000637.3632841-1-saravanak@google.com>

Switch the driver to use the helper macros. In addition to reducing the
number of lines, this also adds module unload protection (if the driver
is compiled as a module) by switching from module_platform_driver to
builtin_platform_driver.

Signed-off-by: Saravana Kannan <saravanak@google.com>
---
 drivers/irqchip/qcom-pdc.c | 26 +++-----------------------
 1 file changed, 3 insertions(+), 23 deletions(-)

diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c
index 5b624e3295e4..c1c5dfad57cc 100644
--- a/drivers/irqchip/qcom-pdc.c
+++ b/drivers/irqchip/qcom-pdc.c
@@ -432,28 +432,8 @@ static int qcom_pdc_init(struct device_node *node, struct device_node *parent)
 	return ret;
 }
 
-static int qcom_pdc_probe(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-	struct device_node *parent = of_irq_find_parent(np);
-
-	return qcom_pdc_init(np, parent);
-}
-
-static const struct of_device_id qcom_pdc_match_table[] = {
-	{ .compatible = "qcom,pdc" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, qcom_pdc_match_table);
-
-static struct platform_driver qcom_pdc_driver = {
-	.probe = qcom_pdc_probe,
-	.driver = {
-		.name = "qcom-pdc",
-		.of_match_table = qcom_pdc_match_table,
-		.suppress_bind_attrs = true,
-	},
-};
-module_platform_driver(qcom_pdc_driver);
+IRQCHIP_PLATFORM_DRIVER_BEGIN(qcom_pdc)
+IRQCHIP_MATCH("qcom,pdc", qcom_pdc_init)
+IRQCHIP_PLATFORM_DRIVER_END(qcom_pdc)
 MODULE_DESCRIPTION("Qualcomm Technologies, Inc. Power Domain Controller");
 MODULE_LICENSE("GPL v2");
-- 
2.28.0.rc0.105.gf9edc3c819-goog

