* [PATCH] ARM: dts: pxa: add pincontrol helpers
@ 2018-08-30 19:59 Robert Jarzmik
2018-08-31 20:30 ` Robert Jarzmik
0 siblings, 1 reply; 2+ messages in thread
From: Robert Jarzmik @ 2018-08-30 19:59 UTC (permalink / raw)
To: Daniel Mack, Haojian Zhuang, Robert Jarzmik, Rob Herring, Mark Rutland
Cc: linux-arm-kernel, devicetree, linux-kernel
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 <robert.jarzmik@free.fr>
---
arch/arm/boot/dts/pxa2xx.dtsi | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/arm/boot/dts/pxa2xx.dtsi b/arch/arm/boot/dts/pxa2xx.dtsi
index a520b4c14ea9..81312a9813f6 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";
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: dts: pxa: add pincontrol helpers
2018-08-30 19:59 [PATCH] ARM: dts: pxa: add pincontrol helpers Robert Jarzmik
@ 2018-08-31 20:30 ` Robert Jarzmik
0 siblings, 0 replies; 2+ messages in thread
From: Robert Jarzmik @ 2018-08-31 20:30 UTC (permalink / raw)
To: Daniel Mack
Cc: Haojian Zhuang, Rob Herring, Mark Rutland, linux-arm-kernel,
devicetree, linux-kernel
Robert Jarzmik <robert.jarzmik@free.fr> writes:
> 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.
As this is exactly the same patch sent out for review July the 7th, queued to
pxa/dt.
--
Robert
^ permalink raw reply [flat|nested] 2+ messages in thread
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