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build: define PWM_SUPPORT arch feature flag

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As the PWM has its own sub-system in the Linux kernel,
I think it should be handled in the same way as GPIO, RTC, PCI...

This patch introduces a specific feature flag "pwm" and the
"leds-pwm" kernel module as the first customer.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
This commit is contained in:
Christian Lamparter
2020-08-29 23:07:28 +02:00
parent fed1788689
commit f6fbc39706
3 changed files with 20 additions and 0 deletions
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1
scripts/target-metadata.pl
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@ -20,6 +20,7 @@ sub target_config_features(@) {
/^usb$/ and $ret .= "\tselect USB_SUPPORT\n";
/^usbgadget$/ and $ret .= "\tselect USB_GADGET_SUPPORT\n";
/^pcmcia$/ and $ret .= "\tselect PCMCIA_SUPPORT\n";
/^pwm$/ and $ret .= "\select PWM_SUPPORT\n";
/^rtc$/ and $ret .= "\tselect RTC_SUPPORT\n";
/^squashfs$/ and $ret .= "\tselect USES_SQUASHFS\n";
/^jffs2$/ and $ret .= "\tselect USES_JFFS2\n";