From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bart Tanghe Subject: [PATCH]dts: add bcm2835-pwm bindings Date: Mon, 5 Jan 2015 16:33:03 +0100 Message-ID: <1420471983-29945-1-git-send-email-bart.tanghe@thomasmore.be> Return-path: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org, lee-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, bart.tanghe-2dq7lIxLGp5qkBXjtECzWg@public.gmane.org List-Id: devicetree@vger.kernel.org To probe the bcm2835-pwm driver properly, this dts bindings has to be added to the bcm2835 dtsi file. In expectation of a bcm2835 clock driver, I've added fixed-clock clock binding. To change the status of the gpio pins into pwm output pins, some additional bindings has to be added but this has not to be done automatically. Is it possible to document this bindings somewhere? Signed-off-by: Bart Tanghe diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi index 3342cb1..ba76bb4 100644 --- a/arch/arm/boot/dts/bcm2835.dtsi +++ b/arch/arm/boot/dts/bcm2835.dtsi @@ -146,6 +147,14 @@ interrupts = <1 9>; }; + pwm: pwm@7E20C000 { + compatible = "brcm,bcm2835-pwm"; + reg = <0x7e20c000 0x28>; + clocks = <&clk_pwm>; + #pwm-cells = <2>; + status = "ok"; + }; + arm-pmu { compatible = "arm,arm1176-pmu"; }; @@ -179,5 +188,13 @@ clock-output-names = "spi"; clock-frequency = <250000000>; }; + + clk_pwm: pwm@3 { + compatible = "fixed-clock"; + reg = <3>; + #clock-cells = <0>; + clock-output-names = "pwm"; + clock-frequency = <9200000>; + }; }; }; -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html