ARM: dts: bcm2835: fix uart0 pinctrl node names
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: 21ff8439 ("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>
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