msm: Featurize gpiomux.
Featurize gpiomux so that systems like 7x00 which do not wish to use it
do not have to be saddled with the configuration tables.
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
Signed-off-by: Daniel Walker <dwalker@codeaurora.org>
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index 4e79580..f09ffef 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -18,6 +18,7 @@
select MSM_VIC
select CPU_V7
select MSM_REMOTE_SPINLOCK_DEKKERS
+ select MSM_GPIOMUX
config ARCH_QSD8X50
bool "QSD8X50"
@@ -26,6 +27,7 @@
select MSM_VIC
select CPU_V7
select MSM_REMOTE_SPINLOCK_LDREX
+ select MSM_GPIOMUX
endchoice
config MSM_SOC_REV_A
@@ -106,6 +108,9 @@
config MSM_SMD
bool
+config MSM_GPIOMUX
+ bool
+
config MSM_V2_TLMM
bool
endif
diff --git a/arch/arm/mach-msm/gpiomux.h b/arch/arm/mach-msm/gpiomux.h
index bb0acf0..b178d9c 100644
--- a/arch/arm/mach-msm/gpiomux.h
+++ b/arch/arm/mach-msm/gpiomux.h
@@ -18,6 +18,7 @@
#define __ARCH_ARM_MACH_MSM_GPIOMUX_H
#include <linux/bitops.h>
+#include <linux/errno.h>
#if defined(CONFIG_MSM_V2_TLMM)
#include "gpiomux-v2.h"
@@ -60,6 +61,8 @@
GPIOMUX_CTL_MASK = GPIOMUX_VALID,
};
+#ifdef CONFIG_MSM_GPIOMUX
+
/* Each architecture must provide its own instance of this table.
* To avoid having gpiomux manage any given gpio, one or both of
* the entries can avoid setting GPIOMUX_VALID - the absence
@@ -90,5 +93,22 @@
* should use msm_gpiomux_write.
*/
void __msm_gpiomux_write(unsigned gpio, gpiomux_config_t val);
+#else
+static inline int __must_check msm_gpiomux_get(unsigned gpio)
+{
+ return -ENOSYS;
+}
+static inline int msm_gpiomux_put(unsigned gpio)
+{
+ return -ENOSYS;
+}
+
+static inline int msm_gpiomux_write(unsigned gpio,
+ gpiomux_config_t active,
+ gpiomux_config_t suspended)
+{
+ return -ENOSYS;
+}
+#endif
#endif