From: Maciej Falkowski <[email protected]>

Document clocks macros with their description
from 'Documentation/devicetree/bindings/sound/samsung-i2s.txt'

Signed-off-by: Maciej Falkowski <[email protected]>
Signed-off-by: Marek Szyprowski <[email protected]>
---
v2:
- Added proper commit message and description
- Moved comments to the right side

Best regards,
Maciej Falkowski
---
 include/dt-bindings/sound/samsung-i2s.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/include/dt-bindings/sound/samsung-i2s.h 
b/include/dt-bindings/sound/samsung-i2s.h
index 77545f14c379..250de0d6c734 100644
--- a/include/dt-bindings/sound/samsung-i2s.h
+++ b/include/dt-bindings/sound/samsung-i2s.h
@@ -2,8 +2,14 @@
 #ifndef _DT_BINDINGS_SAMSUNG_I2S_H
 #define _DT_BINDINGS_SAMSUNG_I2S_H
 
-#define CLK_I2S_CDCLK          0
-#define CLK_I2S_RCLK_SRC       1
-#define CLK_I2S_RCLK_PSR       2
+#define CLK_I2S_CDCLK          0 /* the CDCLK (CODECLKO) gate clock */
+
+#define CLK_I2S_RCLK_SRC       1 /* the RCLKSRC mux clock (corresponding to
+                                  * RCLKSRC bit in IISMOD register)
+                                  */
+
+#define CLK_I2S_RCLK_PSR       2 /* the RCLK prescaler divider clock
+                                  * (corresponding to the IISPSR register)
+                                  */
 
 #endif /* _DT_BINDINGS_SAMSUNG_I2S_H */
-- 
2.17.1



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