Op 30 aug. 2012, om 22:35 heeft Tony Lindgren <[email protected]> het volgende geschreven:
> * AnilKumar Ch <[email protected]> [120828 01:11]: >> Adds GPIO pinctrl nodes to am3358_pinmux master node to control >> user leds (USR0, USR1, USR2 and USR3) present on BeagleBone. >> >> Signed-off-by: AnilKumar Ch <[email protected]> >> --- >> arch/arm/boot/dts/am335x-bone.dts | 14 ++++++++++++++ >> 1 file changed, 14 insertions(+) >> >> diff --git a/arch/arm/boot/dts/am335x-bone.dts >> b/arch/arm/boot/dts/am335x-bone.dts >> index a7906cb..58f5042 100644 >> --- a/arch/arm/boot/dts/am335x-bone.dts >> +++ b/arch/arm/boot/dts/am335x-bone.dts >> @@ -18,6 +18,20 @@ >> reg = <0x80000000 0x10000000>; /* 256 MB */ >> }; >> >> + am3358_pinmux: pinmux@44E10800 { >> + pinctrl-names = "default"; >> + pinctrl-0 = <&userled_pins>; >> + >> + userled_pins: pinmux_userled_pins { >> + pinctrl-single,pins = < >> + 0x54 0x7 /* gpmc_a5.gpio1_21, OUTPUT | >> MODE7 */ >> + 0x58 0x17 /* gpmc_a6.gpio1_22, >> OUTPUT_PULLUP | MODE7 */ >> + 0x5C 0x7 /* gpmc_a7.gpio1_23, OUTPUT | >> MODE7 */ >> + 0x60 0x17 /* gpmc_a8.gpio1_24, >> OUTPUT_PULLUP | MODE7 */ >> + >; >> + }; >> + }; >> + > > Looks like this patch should also claim these pins by the led driver. > Then the led driver should just do pinctrl_get_select_default(&pdev->dev) > in it's probe function to set the pins. FWIW, I've been using this for a while now: + leds { + compatible = "gpio-leds"; + heartbeat { + label = "beaglebone::usr0"; + gpios = <&gpio2 21 0>; + linux,default-trigger = "heartbeat"; + }; + + mmc { + label = "beaglebone:usr1"; + gpios = <&gpio2 22 0>; + linux,default-trigger = "mmc0"; + }; _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
