pinctrl: artpec6: dt: add smaller groups for uarts

Add group configuration for uarts that are cut down
variants, the standard being full, i.e. all signals,
flow control, i.e. rx/tx and cts/rts, and rx/tx only.

This allows us to be more precise in which pins we're
actually using.

Unfortunately the existing naming scheme leaves things
to be desired, e.g. uart3grp0 means RX/TX and CTS/RTS,
yet uart0grp0 means all pins.
Since the exising suffixes have different meaning for
different uarts, and the fact that we cannot change
the name of existing groups, makes it hard to use a
descriptive name for the newly added groups.

Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 8 insertions, 7 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt
index c3f9826692bc..678f5097058e 100644
--- a/Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/axis,artpec6-pinctrl.txt
@@ -19,8 +19,9 @@ Required subnode-properties:
         Available functions and groups (function: group0, group1...):
                 gpio: cpuclkoutgrp0, udlclkoutgrp0, i2c1grp0, i2c2grp0,
                       i2c3grp0, i2s0grp0, i2s1grp0, i2srefclkgrp0, spi0grp0,
-                      spi1grp0, pciedebuggrp0, uart0grp0, uart0grp1, uart1grp0,
-                      uart2grp0, uart2grp1, uart3grp0, uart4grp0, uart5grp0,
+                      spi1grp0, pciedebuggrp0, uart0grp0, uart0grp1, uart0grp2,
+                      uart1grp0, uart1grp1, uart2grp0, uart2grp1, uart2grp2,
+                      uart3grp0, uart4grp0, uart4grp1, uart5grp0, uart5grp1,
                       uart5nocts
                 cpuclkout: cpuclkoutgrp0
                 udlclkout: udlclkoutgrp0
@@ -33,12 +34,12 @@ Required subnode-properties:
                 spi0: spi0grp0
                 spi1: spi1grp0
                 pciedebug: pciedebuggrp0
-                uart0: uart0grp0, uart0grp1
-                uart1: uart1grp0
-                uart2: uart2grp0, uart2grp1
+                uart0: uart0grp0, uart0grp1, uart0grp2
+                uart1: uart1grp0, uart1grp1
+                uart2: uart2grp0, uart2grp1, uart2grp2
                 uart3: uart3grp0
-                uart4: uart4grp0
-                uart5: uart5grp0, uart5nocts
+                uart4: uart4grp0, uart4grp1
+                uart5: uart5grp0, uart5grp1, uart5nocts
                 nand: nandgrp0
                 sdio0: sdio0grp0
                 sdio1: sdio1grp0