On Wed, May 08, 2019 at 03:40:08PM +0200, Geert Uytterhoeven wrote: > Hi Linus, > > This patch series adds pins, groups and functions for the 16-Bit Timer > Pulse Unit (TPU) outputs on the R-Car H3/M3-W/M3-N and RZ/G2M SoCs. > > This has been tested on the Salvator-XS development board with R-Car > M3-N. As the TPU parts of the R-Car H3/M3-W and RZ/G2M SoCs are very > similar, I expect this to work on those SoCs, too. > > Changes compared to v1: > - Update .common[] array sizes in pfc-r8a7796.c. > > I intend to queue this in sh-pfc-for-v5.3. > > Test procedure: > - Apply Cao Van Dong's series "[PATCH v2 0/5] Add TPU support for R-Car > H3/M3-W/M3-N" > (https://lore.kernel.org/linux-renesas-soc/1556155517-5054-1-git-send-email-cv-dong@xxxxxxxxxxx/), > - Make sure switches SW31-[1-4] are switched off, > - Enable TPU and pin control in DTS: > > --- a/arch/arm64/boot/dts/renesas/salvator-xs.dtsi > +++ b/arch/arm64/boot/dts/renesas/salvator-xs.dtsi > @@ -27,3 +27,18 @@ > clock-names = "xin"; > }; > }; > + > +&tpu { > + // SW31-[1-4] OFF > + pinctrl-0 = <&tpu_pins>; > + pinctrl-names = "default"; > + > + status = "okay"; > +}; > + > +&pfc { > + tpu_pins: tpu { > + groups = "tpu_to2", "tpu_to3"; > + function = "tpu"; > + }; > +}; > > - Exercise userspace PWM control for pwm[23] of > /sys/class/pwm/pwmchip1/, > - Inspect PWM signals on the input side of SW31-[12] using an > oscilloscope, > - Disable TPU and pin control in DTS, and restore SW31 switch > settings. > > Thanks! > > Geert Uytterhoeven (4): > pinctrl: sh-pfc: r8a7795-es1: Add TPU pins, groups and functions > pinctrl: sh-pfc: r8a7795: Add TPU pins, groups and functions > pinctrl: sh-pfc: r8a7796: Add TPU pins, groups and functions > pinctrl: sh-pfc: r8a77965: Add TPU pins, groups and functions Thanks Geert, for all patches: Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
