msm: Add EPM I2C GPIO expander
The SX1509 Expander has 16 IO pins and accessed over the i2c bus
on GSBI1. The IO expander pins are used to configure the chip
select and power enable for the ADS1158 chip used for EPM
power measurement.
Change-Id: Ic2442633ccdda3f9888a5db6e58fb5cf03ff5b53
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
diff --git a/arch/arm/mach-msm/board-8064.c b/arch/arm/mach-msm/board-8064.c
index f66c8a7..6e6ecac 100644
--- a/arch/arm/mach-msm/board-8064.c
+++ b/arch/arm/mach-msm/board-8064.c
@@ -93,6 +93,14 @@
#define MSM_ION_HEAP_NUM 1
#endif
+#define GPIO_EXPANDER_IRQ_BASE (PM8821_IRQ_BASE + PM8821_NR_IRQS)
+#define GPIO_EXPANDER_GPIO_BASE (PM8821_MPP_BASE + PM8821_NR_MPPS)
+#define GPIO_EPM_EXPANDER_BASE GPIO_EXPANDER_GPIO_BASE
+
+enum {
+ SX150X_EPM,
+};
+
#ifdef CONFIG_KERNEL_PMEM_EBI_REGION
static unsigned pmem_kernel_ebi1_size = MSM_PMEM_KERNEL_EBI1_SIZE;
static int __init pmem_kernel_ebi1_size_setup(char *p)
diff --git a/arch/arm/mach-msm/include/mach/irqs.h b/arch/arm/mach-msm/include/mach/irqs.h
index 1ae7454..dcbabfa 100644
--- a/arch/arm/mach-msm/include/mach/irqs.h
+++ b/arch/arm/mach-msm/include/mach/irqs.h
@@ -44,7 +44,7 @@
#define NR_PM8821_IRQS 64
#define NR_WCD9XXX_IRQS 49
#define NR_TABLA_IRQS NR_WCD9XXX_IRQS
-#define NR_GPIO_EXPANDER_IRQS 8
+#define NR_GPIO_EXPANDER_IRQS 16
#define NR_BOARD_IRQS (NR_PM8921_IRQS + NR_PM8821_IRQS + \
NR_WCD9XXX_IRQS + NR_GPIO_EXPANDER_IRQS)
#define NR_TLMM_MSM_DIR_CONN_IRQ 8 /*Need to Verify this Count*/