[PATCH v3 4/4] firmware: meson: pass a const buffer to meson_sm_call_write()

[Link Mauve]

This was found while introducing the new nvmem-provider reg_write_const
callback in meson_sm_call_write()’s only user, in meson-efuse.

Signed-off-by: Link Mauve <linkmauve@xxxxxxxxxxxx>
---
 drivers/firmware/meson/meson_sm.c       | 2 +-
 drivers/nvmem/meson-efuse.c             | 4 ++--
 include/linux/firmware/meson/meson_sm.h | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c
index ab9751a59b55..5d4da2e3c3a9 100644
--- a/drivers/firmware/meson/meson_sm.c
+++ b/drivers/firmware/meson/meson_sm.c
@@ -196,7 +196,7 @@ EXPORT_SYMBOL(meson_sm_call_read);
  *
  * Return:	size of sent data on success, a negative value on error
  */
-int meson_sm_call_write(struct meson_sm_firmware *fw, void *buffer,
+int meson_sm_call_write(struct meson_sm_firmware *fw, const void *buffer,
 			unsigned int size, unsigned int cmd_index, u32 arg0,
 			u32 arg1, u32 arg2, u32 arg3, u32 arg4)
 {
diff --git a/drivers/nvmem/meson-efuse.c b/drivers/nvmem/meson-efuse.c
index c922c5bcbd10..5e056e707a96 100644
--- a/drivers/nvmem/meson-efuse.c
+++ b/drivers/nvmem/meson-efuse.c
@@ -20,7 +20,7 @@ static int meson_efuse_read(void *context, unsigned int offset,
 	struct meson_sm_firmware *fw = context;
 	int ret;
 
-	ret = meson_sm_call_read(fw, (u8 *)val, bytes, SM_EFUSE_READ, offset,
+	ret = meson_sm_call_read(fw, val, bytes, SM_EFUSE_READ, offset,
 				 bytes, 0, 0, 0);
 
 	return ret < 0 ? ret : 0;
@@ -32,7 +32,7 @@ static int meson_efuse_write(void *context, unsigned int offset,
 	struct meson_sm_firmware *fw = context;
 	int ret;
 
-	ret = meson_sm_call_write(fw, (u8 *)val, bytes, SM_EFUSE_WRITE, offset,
+	ret = meson_sm_call_write(fw, val, bytes, SM_EFUSE_WRITE, offset,
 				  bytes, 0, 0, 0);
 
 	return ret < 0 ? ret : 0;
diff --git a/include/linux/firmware/meson/meson_sm.h b/include/linux/firmware/meson/meson_sm.h
index 3ebc2bd9a976..92cc61f3a1c0 100644
--- a/include/linux/firmware/meson/meson_sm.h
+++ b/include/linux/firmware/meson/meson_sm.h
@@ -21,7 +21,7 @@ struct meson_sm_firmware;
 
 int meson_sm_call(struct meson_sm_firmware *fw, unsigned int cmd_index,
 		  s32 *ret, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
-int meson_sm_call_write(struct meson_sm_firmware *fw, void *buffer,
+int meson_sm_call_write(struct meson_sm_firmware *fw, const void *buffer,
 			unsigned int b_size, unsigned int cmd_index, u32 arg0,
 			u32 arg1, u32 arg2, u32 arg3, u32 arg4);
 int meson_sm_call_read(struct meson_sm_firmware *fw, void *buffer,
-- 
2.55.0