| Message ID | 20170311174255.23327-3-krzk@kernel.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 03/11/2017 09:42 AM, Krzysztof Kozlowski wrote: > Simplify the flow in helper function for getting the driver data by > using of_device_get_match_data() and only one if() branch. > > The code should be equivalent. > > Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> > --- > drivers/watchdog/s3c2410_wdt.c | 17 ++++++++++------- > 1 file changed, 10 insertions(+), 7 deletions(-) > > diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c > index 5eaec319e499..d7ddee0668c3 100644 > --- a/drivers/watchdog/s3c2410_wdt.c > +++ b/drivers/watchdog/s3c2410_wdt.c > @@ -37,6 +37,7 @@ > #include <linux/slab.h> > #include <linux/err.h> > #include <linux/of.h> > +#include <linux/of_device.h> > #include <linux/mfd/syscon.h> > #include <linux/regmap.h> > #include <linux/delay.h> > @@ -510,14 +511,16 @@ static inline unsigned int s3c2410wdt_get_bootstatus(struct s3c2410_wdt *wdt) > static inline const struct s3c2410_wdt_variant * > s3c2410_get_wdt_drv_data(struct platform_device *pdev) > { > - if (pdev->dev.of_node) { > - const struct of_device_id *match; > - match = of_match_node(s3c2410_wdt_match, pdev->dev.of_node); > - return (const struct s3c2410_wdt_variant *)match->data; > - } else { > - return (const struct s3c2410_wdt_variant *) > - platform_get_device_id(pdev)->driver_data; > + const struct s3c2410_wdt_variant *variant; > + > + variant = of_device_get_match_data(&pdev->dev); > + if (!variant) { > + /* Device matched by platform_device_id */ > + variant = (const struct s3c2410_wdt_variant *) Please drop the const and rebase to the simplified patch 1/3. > + platform_get_device_id(pdev)->driver_data; > } > + > + return variant; > } > > static int s3c2410wdt_probe(struct platform_device *pdev) >
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c index 5eaec319e499..d7ddee0668c3 100644 --- a/drivers/watchdog/s3c2410_wdt.c +++ b/drivers/watchdog/s3c2410_wdt.c @@ -37,6 +37,7 @@ #include <linux/slab.h> #include <linux/err.h> #include <linux/of.h> +#include <linux/of_device.h> #include <linux/mfd/syscon.h> #include <linux/regmap.h> #include <linux/delay.h> @@ -510,14 +511,16 @@ static inline unsigned int s3c2410wdt_get_bootstatus(struct s3c2410_wdt *wdt) static inline const struct s3c2410_wdt_variant * s3c2410_get_wdt_drv_data(struct platform_device *pdev) { - if (pdev->dev.of_node) { - const struct of_device_id *match; - match = of_match_node(s3c2410_wdt_match, pdev->dev.of_node); - return (const struct s3c2410_wdt_variant *)match->data; - } else { - return (const struct s3c2410_wdt_variant *) - platform_get_device_id(pdev)->driver_data; + const struct s3c2410_wdt_variant *variant; + + variant = of_device_get_match_data(&pdev->dev); + if (!variant) { + /* Device matched by platform_device_id */ + variant = (const struct s3c2410_wdt_variant *) + platform_get_device_id(pdev)->driver_data; } + + return variant; } static int s3c2410wdt_probe(struct platform_device *pdev)
Simplify the flow in helper function for getting the driver data by using of_device_get_match_data() and only one if() branch. The code should be equivalent. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> --- drivers/watchdog/s3c2410_wdt.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-)