platform/x86: intel_pmc_ipc: Make intel_pmc_gcr_update() static

This function is not called outside of intel_pmc_ipc.c so we can make it
static instead.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

arch/x86/include/asm/intel_pmc_ipc.h

@@ -40,7 +40,6 @@ int intel_pmc_s0ix_counter_read(u64 *data);
 int intel_pmc_gcr_read(u32 offset, u32 *data);
 int intel_pmc_gcr_read64(u32 offset, u64 *data);
 int intel_pmc_gcr_write(u32 offset, u32 data);
-int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val);
 
 #else
 
@@ -81,11 +80,6 @@ static inline int intel_pmc_gcr_write(u32 offset, u32 data)
 	return -EINVAL;
 }
 
-static inline int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val)
-{
-	return -EINVAL;
-}
-
 #endif /*CONFIG_INTEL_PMC_IPC*/
 
 #endif

drivers/platform/x86/intel_pmc_ipc.c

@@ -309,7 +309,7 @@ EXPORT_SYMBOL_GPL(intel_pmc_gcr_write);
  *
  * Return:	negative value on error or 0 on success.
  */
-int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val)
+static int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val)
 {
 	u32 new_val;
 	int ret = 0;
@@ -339,7 +339,6 @@ int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val)
 	spin_unlock(&ipcdev.gcr_lock);
 	return ret;
 }
-EXPORT_SYMBOL_GPL(intel_pmc_gcr_update);
 
 static int update_no_reboot_bit(void *priv, bool set)
 {