From f6fbc397066e57d180aebc62e6bf52464d06bd76 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sat, 29 Aug 2020 23:07:28 +0200 Subject: [PATCH] build: define PWM_SUPPORT arch feature flag 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 --- package/kernel/linux/modules/leds.mk | 16 ++++++++++++++++ scripts/target-metadata.pl | 1 + target/Config.in | 3 +++ 3 files changed, 20 insertions(+) diff --git a/package/kernel/linux/modules/leds.mk b/package/kernel/linux/modules/leds.mk index c030b54b39..fe90c6b559 100644 --- a/package/kernel/linux/modules/leds.mk +++ b/package/kernel/linux/modules/leds.mk @@ -159,3 +159,19 @@ define KernelPackage/leds-pca963x/description endef $(eval $(call KernelPackage,leds-pca963x)) + + +define KernelPackage/leds-pwm + SUBMENU:=$(LEDS_MENU) + TITLE:=PWM driven LED Support + KCONFIG:=CONFIG_LEDS_PWM + DEPENDS:= @PWM_SUPPORT + FILES:=$(LINUX_DIR)/drivers/leds/leds-pwm.ko + AUTOLOAD:=$(call AutoLoad,60,leds-pwm,1) +endef + +define KernelPackage/leds-pwm/description + This option enables support for pwm driven LEDs +endef + +$(eval $(call KernelPackage,leds-pwm)) diff --git a/scripts/target-metadata.pl b/scripts/target-metadata.pl index c58f096573..bf6413d315 100755 --- a/scripts/target-metadata.pl +++ b/scripts/target-metadata.pl @@ -20,6 +20,7 @@ sub target_config_features(@) { /^usb$/ 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"; diff --git a/target/Config.in b/target/Config.in index 9fead5994f..43de4710df 100644 --- a/target/Config.in +++ b/target/Config.in @@ -29,6 +29,9 @@ config PCIE_SUPPORT config PCMCIA_SUPPORT bool +config PWM_SUPPORT + bool + config USB_SUPPORT select AUDIO_SUPPORT bool