ARM: msm: use __iomem pointers for MMIO

ARM is moving to stricter checks on readl/write functions,
so we need to use the correct types everywhere.

Acked-by: David Brown <davidb@codeaurora.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 10 insertions, 9 deletions

diff --git a/arch/arm/mach-msm/smd.c b/arch/arm/mach-msm/smd.c
index 657be73297db..f4e475c49302 100644
--- a/arch/arm/mach-msm/smd.c
+++ b/arch/arm/mach-msm/smd.c
@@ -52,13 +52,14 @@ static int msm_smd_debug_mask;
 
 struct shared_info {
         int ready;
-        unsigned state;
+        void __iomem *state;
 };
 
 static unsigned dummy_state[SMSM_STATE_COUNT];
 
 static struct shared_info smd_info = {
-        .state = (unsigned) &dummy_state,
+        /* FIXME: not a real __iomem pointer */
+        .state = &dummy_state,
 };
 
 module_param_named(debug_mask, msm_smd_debug_mask,
@@ -796,22 +797,22 @@ void *smem_alloc(unsigned id, unsigned size)
         return smem_find(id, size);
 }
 
-void *smem_item(unsigned id, unsigned *size)
+void __iomem *smem_item(unsigned id, unsigned *size)
 {
         struct smem_shared *shared = (void *) MSM_SHARED_RAM_BASE;
         struct smem_heap_entry *toc = shared->heap_toc;
 
         if (id >= SMEM_NUM_ITEMS)
-                return 0;
+                return NULL;
 
         if (toc[id].allocated) {
                 *size = toc[id].size;
-                return (void *) (MSM_SHARED_RAM_BASE + toc[id].offset);
+                return (MSM_SHARED_RAM_BASE + toc[id].offset);
         } else {
                 *size = 0;
         }
 
-        return 0;
+        return NULL;
 }
 
 void *smem_find(unsigned id, unsigned size_in)
@@ -857,7 +858,7 @@ static irqreturn_t smsm_irq_handler(int irq, void *data)
 int smsm_change_state(enum smsm_state_item item,
                       uint32_t clear_mask, uint32_t set_mask)
 {
-        unsigned long addr = smd_info.state + item * 4;
+        void __iomem *addr = smd_info.state + item * 4;
         unsigned long flags;
         unsigned state;
 
@@ -943,10 +944,10 @@ int smd_core_init(void)
         /* wait for essential items to be initialized */
         for (;;) {
                 unsigned size;
-                void *state;
+                void __iomem *state;
                 state = smem_item(SMEM_SMSM_SHARED_STATE, &size);
                 if (size == SMSM_V1_SIZE || size == SMSM_V2_SIZE) {
-                        smd_info.state = (unsigned)state;
+                        smd_info.state = state;
                         break;
                 }
         }