On Fri, Nov 24, 2017 at 02:31:13AM +0000, Y.b. Lu wrote: > Any comments? > > +Shawn
Please resend with me on copy. > > Thanks. > > -----Original Message----- > From: Yangbo Lu [mailto:[email protected]] > Sent: 2017年11月10日 9:59 > To: [email protected]; [email protected]; > [email protected]; Rob Herring <[email protected]>; Mark > Rutland <[email protected]>; Russell King <[email protected]> > Cc: Y.b. Lu <[email protected]> > Subject: [PATCH] arm: dts: ls1021a: fix the value of TMR_FIPER1 ARM: dts: ... > > The timer fixed interval period pulse generator register is used to generate > periodic pulses. The down count register loads the value programmed in the > fixed period interval (FIPER). At every tick of the timer accumulator > overflow, the counter decrements by the value of TMR_CTRL[TCLK_PERIOD]. It > generates a pulse when the down counter value reaches zero. It reloads the > down counter in the cycle following a pulse. To use the TMR_FIPER1 register > to generate a 1 PPS event, the value Please wrap the commit log properly. Shawn > (10^9 nanoseconds) - TCLK_PERIOD should be programmed. > It should be 999999995 not 999999990 since TCLK_PERIOD is 5. > > Signed-off-by: Yangbo Lu <[email protected]> > --- > arch/arm/boot/dts/ls1021a.dtsi | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi > index 9319e1f0f1d8..10e536f338f7 100644 > --- a/arch/arm/boot/dts/ls1021a.dtsi > +++ b/arch/arm/boot/dts/ls1021a.dtsi > @@ -575,7 +575,7 @@ > fsl,tclk-period = <5>; > fsl,tmr-prsc = <2>; > fsl,tmr-add = <0xaaaaaaab>; > - fsl,tmr-fiper1 = <999999990>; > + fsl,tmr-fiper1 = <999999995>; > fsl,tmr-fiper2 = <99990>; > fsl,max-adj = <499999999>; > }; > -- > 2.14.1 > > _______________________________________________ > linux-arm-kernel mailing list > [email protected] > http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
