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usb: common: Switch to device_property_match_property_string()

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Replace open coded device_property_match_property_string().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240903183136.3641770-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2024-09-03 21:31:36 +03:00 committed by Greg Kroah-Hartman
parent 625fa77151
commit 64fa3bc36d
1 changed files with 7 additions and 8 deletions
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15
drivers/usb/common/common.c
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@ -107,19 +107,18 @@ EXPORT_SYMBOL_GPL(usb_speed_string);
*/
enum usb_device_speed usb_get_maximum_speed(struct device *dev)
{
const char *maximum_speed;
const char *p = "maximum-speed";
int ret;
ret = device_property_read_string(dev, "maximum-speed", &maximum_speed);
if (ret < 0)
return USB_SPEED_UNKNOWN;
ret = match_string(ssp_rate, ARRAY_SIZE(ssp_rate), maximum_speed);
ret = device_property_match_property_string(dev, p, ssp_rate, ARRAY_SIZE(ssp_rate));
if (ret > 0)
return USB_SPEED_SUPER_PLUS;
ret = match_string(speed_names, ARRAY_SIZE(speed_names), maximum_speed);
return (ret < 0) ? USB_SPEED_UNKNOWN : ret;
ret = device_property_match_property_string(dev, p, speed_names, ARRAY_SIZE(speed_names));
if (ret > 0)
return ret;
return USB_SPEED_UNKNOWN;
}
EXPORT_SYMBOL_GPL(usb_get_maximum_speed);