irqchip/st: Use device_get_match_data() to simplify the code

Directly get the match data with device_get_match_data().

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/202211171916504943604@zte.com.cn

diff --git a/drivers/irqchip/irq-st.c b/drivers/irqchip/irq-st.c
index 801551e46a7b0e6a323902711c2f47c08a4f80bb..1b83512b29c62ae5e6bec5daf83faa85f2d358f7 100644 (file)
--- a/drivers/irqchip/irq-st.c
+++ b/drivers/irqchip/irq-st.c
@@ -153,18 +153,13 @@ static int st_irq_syscfg_enable(struct platform_device *pdev)
 static int st_irq_syscfg_probe(struct platform_device *pdev)
 {
        struct device_node *np = pdev->dev.of_node;
-       const struct of_device_id *match;
        struct st_irq_syscfg *ddata;
 
        ddata = devm_kzalloc(&pdev->dev, sizeof(*ddata), GFP_KERNEL);
        if (!ddata)
                return -ENOMEM;
 
-       match = of_match_device(st_irq_syscfg_match, &pdev->dev);
-       if (!match)
-               return -ENODEV;
-
-       ddata->syscfg = (unsigned int)match->data;
+       ddata->syscfg = (unsigned int) device_get_match_data(&pdev->dev);
 
        ddata->regmap = syscon_regmap_lookup_by_phandle(np, "st,syscfg");
        if (IS_ERR(ddata->regmap)) {