[PATCH 3.16 088/204] sh: sh7269: remove nonexistent GPIO_PH[0-7] to fix pinctrl registration

From: Ben Hutchings
Date: Thu Dec 28 2017 - 12:33:56 EST


3.16.52-rc1 review patch. If anyone has any objections, please let me know.

------------------

From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

commit d9d73e81fe82fdf4ee65a48c26531edc04108349 upstream.

Pinmux_pins[] is initialized through PINMUX_GPIO(), using designated
array initializers, where the GPIO_* enums serve as indices. If enum
values are defined, but never used, pinmux_pins[] contains (zero-filled)
holes. Such entries are treated as pin zero, which was registered
before, thus leading to pinctrl registration failures, as seen on
sh7722:

sh-pfc pfc-sh7722: pin 0 already registered
sh-pfc pfc-sh7722: error during pin registration
sh-pfc pfc-sh7722: could not register: -22
sh-pfc: probe of pfc-sh7722 failed with error -22

Remove GPIO_PH[0-7] from the enum to fix this.

Link: http://lkml.kernel.org/r/1505205657-18012-5-git-send-email-geert+renesas@xxxxxxxxx
Fixes: ef0fa5331a73e479 ("sh: Add pinmux for sh7269")
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Magnus Damm <magnus.damm@xxxxxxxxx>
Cc: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
Cc: Jacopo Mondi <jacopo+renesas@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Ben Hutchings <ben@xxxxxxxxxxxxxxx>
---
arch/sh/include/cpu-sh2a/cpu/sh7269.h | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

--- a/arch/sh/include/cpu-sh2a/cpu/sh7269.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
@@ -45,9 +45,7 @@ enum {
GPIO_PG7, GPIO_PG6, GPIO_PG5, GPIO_PG4,
GPIO_PG3, GPIO_PG2, GPIO_PG1, GPIO_PG0,

- /* Port H */
- GPIO_PH7, GPIO_PH6, GPIO_PH5, GPIO_PH4,
- GPIO_PH3, GPIO_PH2, GPIO_PH1, GPIO_PH0,
+ /* Port H - Port H does not have a Data Register */

/* Port I - not on device */