openwrtv4/target/linux/ipq806x/patches/0037-pinctrl-msm-Make-number-of-functions-variable.patch

From 1c11b14dd6d740e997919f0bf789bf921548dc0f Mon Sep 17 00:00:00 2001
From: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Date: Mon, 31 Mar 2014 14:49:55 -0700
Subject: [PATCH 037/182] pinctrl: msm: Make number of functions variable

The various pins may have different number of functions defined, so make this
number definable per pin instead of just increasing it to the largest one for
all of the platforms.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-msm.c     |    4 ++--
 drivers/pinctrl/pinctrl-msm.h     |    3 ++-
 drivers/pinctrl/pinctrl-msm8x74.c |    3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

--- a/drivers/pinctrl/pinctrl-msm.c
+++ b/drivers/pinctrl/pinctrl-msm.c
@@ -145,12 +145,12 @@ static int msm_pinmux_enable(struct pinc
 	if (WARN_ON(g->mux_bit < 0))
 		return -EINVAL;
 
-	for (i = 0; i < ARRAY_SIZE(g->funcs); i++) {
+	for (i = 0; i < g->nfuncs; i++) {
 		if (g->funcs[i] == function)
 			break;
 	}
 
-	if (WARN_ON(i == ARRAY_SIZE(g->funcs)))
+	if (WARN_ON(i == g->nfuncs))
 		return -EINVAL;
 
 	spin_lock_irqsave(&pctrl->lock, flags);
--- a/drivers/pinctrl/pinctrl-msm.h
+++ b/drivers/pinctrl/pinctrl-msm.h
@@ -65,7 +65,8 @@ struct msm_pingroup {
 	const unsigned *pins;
 	unsigned npins;
 
-	unsigned funcs[8];
+	unsigned *funcs;
+	unsigned nfuncs;
 
 	s16 ctl_reg;
 	s16 io_reg;
--- a/drivers/pinctrl/pinctrl-msm8x74.c
+++ b/drivers/pinctrl/pinctrl-msm8x74.c
@@ -341,7 +341,7 @@ static const unsigned int sdc2_data_pins
 		.name = "gpio" #id,			\
 		.pins = gpio##id##_pins,		\
 		.npins = ARRAY_SIZE(gpio##id##_pins),	\
-		.funcs = {				\
+		.funcs = (int[]){			\
 			MSM_MUX_NA, /* gpio mode */	\
 			MSM_MUX_##f1,			\
 			MSM_MUX_##f2,			\
@@ -351,6 +351,7 @@ static const unsigned int sdc2_data_pins
 			MSM_MUX_##f6,			\
 			MSM_MUX_##f7			\
 		},					\
+		.nfuncs = 8,				\
 		.ctl_reg = 0x1000 + 0x10 * id,		\
 		.io_reg = 0x1004 + 0x10 * id,		\
 		.intr_cfg_reg = 0x1008 + 0x10 * id,	\