Messages in this thread | | | Date | Thu, 17 Jan 2019 20:41:07 +0100 | From | Uwe Kleine-König <> | Subject | Re: [PATCH 3/5] arm64: dts: mt7622: add a property "mediatek,num-pwms" for PWM |
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Hello,
On Thu, Jan 17, 2019 at 02:00:43PM +0100, Matthias Brugger wrote: > On 15/01/2019 21:02, Uwe Kleine-König wrote: > > On Mon, Jan 14, 2019 at 04:21:22PM +0800, Ryder Lee wrote: > >> diff --git a/arch/arm64/boot/dts/mediatek/mt7622.dtsi b/arch/arm64/boot/dts/mediatek/mt7622.dtsi > >> index 8fc4aa7..ab016cf 100644 > >> --- a/arch/arm64/boot/dts/mediatek/mt7622.dtsi > >> +++ b/arch/arm64/boot/dts/mediatek/mt7622.dtsi > >> @@ -436,6 +436,7 @@ > >> <&pericfg CLK_PERI_PWM6_PD>; > >> clock-names = "top", "main", "pwm1", "pwm2", "pwm3", "pwm4", > >> "pwm5", "pwm6"; > >> + mediatek,num-pwms = <6>; > >> status = "disabled"; > > > > Conceptually this patch must go in before the change to the driver. > > Otherwise the pwms are not usable with only patch 1 applied which breaks > > bisectability. > > > > The driver should have backwards compatibility to older DTs. So that would need > to be fixed in the driver not in the patch order of the series.
Right you are. Bisectability is a reason to not apply the patches in the order as is, but given that you already requested backwards compatibility the bisectability will be fixed en passant.
Best regards Uwe
-- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ |
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