linux-kernel - [PATCH v2] ASoC: samsung: i2s: Document clocks macros

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Message-Id: <20190926110219.6144-1-m.szyprowski@samsung.com>
Date:   Thu, 26 Sep 2019 13:02:19 +0200
From:   Marek Szyprowski <m.szyprowski@...sung.com>
To:     devicetree@...r.kernel.org, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Mark Brown <broonie@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Maciej Falkowski <m.falkowski@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: [PATCH v2] ASoC: samsung: i2s: Document clocks macros

From: Maciej Falkowski <m.falkowski@...sung.com>

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

Signed-off-by: Maciej Falkowski <m.falkowski@...sung.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
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