diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.c b/drivers/staging/most/hdm-dim2/dim2_hal.c
index a96457c60f6d..e80a12ec0db4 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hal.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hal.c
@@ -862,8 +862,8 @@ u8 dim_service_channel(struct dim_channel *ch)
 	return channel_service(ch);
 }
 
-struct dim_ch_state_t *DIM_GetChannelState(struct dim_channel *ch,
-					   struct dim_ch_state_t *state_ptr)
+struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
+					     struct dim_ch_state_t *state_ptr)
 {
 	if (!ch || !state_ptr)
 		return NULL;
diff --git a/drivers/staging/most/hdm-dim2/dim2_hal.h b/drivers/staging/most/hdm-dim2/dim2_hal.h
index 76e4a62f2f20..1ca7a1a2e0c5 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hal.h
+++ b/drivers/staging/most/hdm-dim2/dim2_hal.h
@@ -95,8 +95,8 @@ void dim_service_irq(struct dim_channel *const *channels);
 
 u8 dim_service_channel(struct dim_channel *ch);
 
-struct dim_ch_state_t *DIM_GetChannelState(struct dim_channel *ch,
-					   struct dim_ch_state_t *state_ptr);
+struct dim_ch_state_t *dim_get_channel_state(struct dim_channel *ch,
+					     struct dim_ch_state_t *state_ptr);
 
 bool DIM_EnqueueBuffer(struct dim_channel *ch, u32 buffer_addr,
 		       u16 buffer_size);
diff --git a/drivers/staging/most/hdm-dim2/dim2_hdm.c b/drivers/staging/most/hdm-dim2/dim2_hdm.c
index 4b5df0b06008..6524c3ce9685 100644
--- a/drivers/staging/most/hdm-dim2/dim2_hdm.c
+++ b/drivers/staging/most/hdm-dim2/dim2_hdm.c
@@ -246,7 +246,7 @@ static int try_start_dim_transfer(struct hdm_channel *hdm_ch)
 		return -EAGAIN;
 	}
 
-	if (!DIM_GetChannelState(&hdm_ch->ch, &st)->ready) {
+	if (!dim_get_channel_state(&hdm_ch->ch, &st)->ready) {
 		spin_unlock_irqrestore(&dim_lock, flags);
 		return -EAGAIN;
 	}
@@ -340,7 +340,7 @@ static void service_done_flag(struct dim2_hdm *dev, int ch_idx)
 
 	spin_lock_irqsave(&dim_lock, flags);
 
-	done_buffers = DIM_GetChannelState(&hdm_ch->ch, &st)->done_buffers;
+	done_buffers = dim_get_channel_state(&hdm_ch->ch, &st)->done_buffers;
 	if (!done_buffers) {
 		spin_unlock_irqrestore(&dim_lock, flags);
 		return;