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* [PATCH] ARM: dts: document pinctrl-single,pins when #pinctrl-cells = 2
@ 2020-09-14 10:43 Drew Fustini
  2020-09-17  9:03 ` Trent Piepho
  2020-09-23  6:59 ` Tony Lindgren
  0 siblings, 2 replies; 21+ messages in thread
From: Drew Fustini @ 2020-09-14 10:43 UTC (permalink / raw)
  To: Tony Lindgren, Rob Herring, Linus Walleij, Jason Kridner,
	Robert Nelson, Trent Piepho, linux-omap, linux-kernel,
	devicetree, linux-gpio
  Cc: Drew Fustini

Document the values in pinctrl-single,pins when #pinctrl-cells = <2>

Fixes: 27c90e5e48d0 ("ARM: dts: am33xx-l4: change #pinctrl-cells from 1 to 2")
Reported-by: Trent Piepho <tpiepho@gmail.com>
Link: https://lore.kernel.org/linux-omap/3139716.CMS8C0sQ7x@zen.local/
Signed-off-by: Drew Fustini <drew@beagleboard.org>
---
 .../bindings/pinctrl/pinctrl-single.txt       | 20 ++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt
index ba428d345a56..ef560afdd52e 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt
@@ -96,16 +96,22 @@ pinctrl-single,bit-per-mux is set), and uses the common pinctrl bindings as
 specified in the pinctrl-bindings.txt document in this directory.
 
 The pin configuration nodes for pinctrl-single are specified as pinctrl
-register offset and value pairs using pinctrl-single,pins. Only the bits
-specified in pinctrl-single,function-mask are updated. For example, setting
-a pin for a device could be done with:
+register offset and values using pinctrl-single,pins. Only the bits specified
+in pinctrl-single,function-mask are updated.
+
+When #pinctrl-cells = 1, then setting a pin for a device could be done with:
 
 	pinctrl-single,pins = <0xdc 0x118>;
 
-Where 0xdc is the offset from the pinctrl register base address for the
-device pinctrl register, and 0x118 contains the desired value of the
-pinctrl register. See the device example and static board pins example
-below for more information.
+Where 0xdc is the offset from the pinctrl register base address for the device
+pinctrl register, and 0x118 contains the desired value of the pinctrl register.
+
+When #pinctrl-cells = 2, then setting a pin for a device could be done with:
+
+	pinctrl-single,pins = <0xdc 0x30 0x07>;
+
+Where 0x30 is the pin configuration value and 0x07 is the pin mux mode value.
+See the device example and static board pins example below for more information.
 
 In case when one register changes more than one pin's mux the
 pinctrl-single,bits need to be used which takes three parameters:
-- 
2.25.1


^ permalink raw reply	[flat|nested] 21+ messages in thread

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Thread overview: 21+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-14 10:43 [PATCH] ARM: dts: document pinctrl-single,pins when #pinctrl-cells = 2 Drew Fustini
2020-09-17  9:03 ` Trent Piepho
2020-09-17  9:20   ` Drew Fustini
2020-09-17 10:00     ` Trent Piepho
2020-09-17 10:39       ` Drew Fustini
2020-09-23  6:57         ` Tony Lindgren
2020-09-24  1:34           ` Trent Piepho
2020-09-24  5:43             ` Tony Lindgren
2020-09-24  5:49               ` Trent Piepho
2020-09-24  6:06                 ` Tony Lindgren
2020-09-24  6:31                   ` Trent Piepho
2020-09-24  7:04                     ` Tony Lindgren
2020-09-29 20:15                       ` Trent Piepho
2020-09-30  5:15                         ` Tony Lindgren
2020-09-30  8:34                           ` Trent Piepho
2020-09-30  9:15                             ` Tony Lindgren
2020-09-30  9:34                               ` Trent Piepho
2020-09-30  9:47                                 ` Tony Lindgren
2020-09-30 18:50                                   ` Trent Piepho
2020-10-01  7:00                                     ` Tony Lindgren
2020-09-23  6:59 ` Tony Lindgren

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