From 9f296fe2718efe558825471b5cdf0ca4d1bdd3c6 Mon Sep 17 00:00:00 2001 From: Robert Jarzmik Date: Mon, 2 Jul 2018 07:37:52 +0200 Subject: ARM: dts: pxa: add pincontrol helpers Add 3 helpers so that pincontrol definitions for pxa25x and pxa27x are easier, and can be easily converted from old mfp mach-pxa code to devicetree. An example of such conversion would be : static unsigned long mioa701_pin_config[] = { GPIO32_MMC_CLK, GPIO92_MMC_DAT_0, GPIO109_MMC_DAT_1, GPIO110_MMC_DAT_2, GPIO111_MMC_DAT_3, GPIO112_MMC_CMD, MIO_CFG_IN(GPIO78_SDIO_RO, AF0), MIO_CFG_IN(GPIO15_SDIO_INSERT, AF0), MIO_CFG_OUT(GPIO91_SDIO_EN, AF0, DRIVE_LOW), }; into: pinctrl_mmc_default: mmc-default { PMMUX(sd-insert, 15, gpio_in); PMMUX(mmclk, 32, MMCLK); PMMUX(sd-ro, 78, gpio_in); PMMUX_LPM_LOW(sd-enable, 91, gpio_out); PMMUX(mmdat0, 92, MMDAT<0>); PMMUX(mmdat1, 109, MMDAT<1>); PMMUX(mmdat2, 110, MMDAT<2>); PMMUX(mmdat3, 111, MMDAT<3>); PMMUX(mmcmd, 112, MMCMD); }; The third column of PMMUX*() helpers can be found in pincontrol muxing functions, either in pinctrl-pxa27x.c (or pinctrl-pxa25x.c), or by inspecting the pincontrol once booted in debugfs. Signed-off-by: Robert Jarzmik --- arch/arm/boot/dts/pxa2xx.dtsi | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'arch/arm/boot/dts/pxa2xx.dtsi') diff --git a/arch/arm/boot/dts/pxa2xx.dtsi b/arch/arm/boot/dts/pxa2xx.dtsi index 242ca81306de..080d5c5169b5 100644 --- a/arch/arm/boot/dts/pxa2xx.dtsi +++ b/arch/arm/boot/dts/pxa2xx.dtsi @@ -9,6 +9,25 @@ #include "skeleton.dtsi" #include "dt-bindings/clock/pxa-clock.h" +#define PMGROUP(pin) #pin +#define PMMUX(func, pin, af) \ + mux- ## func { \ + groups = PMGROUP(P ## pin); \ + function = #af; \ + } +#define PMMUX_LPM_LOW(func, pin, af) \ + mux- ## func { \ + groups = PMGROUP(P ## pin); \ + function = #af; \ + low-power-disable; \ + } +#define PMMUX_LPM_HIGH(func, pin, af) \ + mux- ## func { \ + groups = PMGROUP(P ## pin); \ + function = #af; \ + low-power-enable; \ + } + / { model = "Marvell PXA2xx family SoC"; compatible = "marvell,pxa2xx"; -- cgit