ARM: dts: bcm2835: fix uart0 pinctrl node names

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Downstream kernel uses pins 32, 33 as UART0 (PL011) Rx/Tx to communicate with
the Bluetooth chip. So ALT3 of these pins is most likely not CTS/RTS. Change
the node name to reflect that. This matches section 6.2 "Alternative Function
Assignments" in the BCM2835 ARM Peripherals document.

With this change in place, adding

  &uart0 {
	 pinctrl-names = "default";
	 pinctrl-0 = <&uart0_gpio32 &gpclk2_gpio43>;
	 status = "okay";
  };

to bcm2837-rpi-3-b.dts does the right thing on my Raspberry Pi 3.

Pins 30, 31 are CTS/RTS of UART0 in alternate function 3. Rename uart0_gpio30
as well.

While at it, fix a little typo in a nearby comment.

Fixes: 21ff843931 ("ARM: dts: bcm283x: Define standard pinctrl groups in the gpio node.")
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Eric Anholt <eric@anholt.net>

...

This commit is contained in:

Baruch Siach 2017-01-29 20:40:59 +02:00 • committed by Eric Anholt

parent 7f31a955a0

commit ec8542cb8a

1 changed files with 3 additions and 3 deletions

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arch/arm/boot/dts/bcm283x.dtsi

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