pwm: vt8500: Introduce a local pwm_chip variable in .probe()

This simplifies converting the driver to pwmchip_alloc() as there is only
a single code line left that makes use of struct vt8500_chip::chip.

Link: https://lore.kernel.org/r/7d903b608609d46cf1ee1e06530f516f42af1ebb.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index 3646bd4..6da9b8f 100644 (file)
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -232,6 +232,7 @@ MODULE_DEVICE_TABLE(of, vt8500_pwm_dt_ids);
 
 static int vt8500_pwm_probe(struct platform_device *pdev)
 {
+       struct pwm_chip *chip;
        struct vt8500_chip *vt8500;
        struct device_node *np = pdev->dev.of_node;
        int ret;
@@ -243,9 +244,10 @@ static int vt8500_pwm_probe(struct platform_device *pdev)
        if (vt8500 == NULL)
                return -ENOMEM;
 
-       vt8500->chip.dev = &pdev->dev;
-       vt8500->chip.ops = &vt8500_pwm_ops;
-       vt8500->chip.npwm = VT8500_NR_PWMS;
+       chip = &vt8500->chip;
+       chip->dev = &pdev->dev;
+       chip->ops = &vt8500_pwm_ops;
+       chip->npwm = VT8500_NR_PWMS;
 
        vt8500->clk = devm_clk_get_prepared(&pdev->dev, NULL);
        if (IS_ERR(vt8500->clk))
@@ -255,7 +257,7 @@ static int vt8500_pwm_probe(struct platform_device *pdev)
        if (IS_ERR(vt8500->base))
                return PTR_ERR(vt8500->base);
 
-       ret = devm_pwmchip_add(&pdev->dev, &vt8500->chip);
+       ret = devm_pwmchip_add(&pdev->dev, chip);
        if (ret < 0)
                return dev_err_probe(&pdev->dev, ret, "failed to add PWM chip\n");