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authorSergej Sawazki <ce3a@gmx.de>2015-05-13 12:39:01 +0300
committerMark Brown <broonie@kernel.org>2015-05-13 17:51:36 +0300
commitc354b54cfdf63587154da4fa0731c1fbda44c589 (patch)
tree18ca15a19d1085e8978503c6aa45abcc560fedfc /sound/soc/codecs/wm8741.h
parentb787f68c36d49bb1d9236f403813641efa74a031 (diff)
downloadlinux-c354b54cfdf63587154da4fa0731c1fbda44c589.tar.xz
ASoC: wm8741: Add differential mono mode support
The WM8741 DAC supports several differential output modes (stereo, stereo reversed, mono left, mono right). Add platform data and DT bindings to configure it. Signed-off-by: Sergej Sawazki <ce3a@gmx.de> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/wm8741.h')
-rw-r--r--sound/soc/codecs/wm8741.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/sound/soc/codecs/wm8741.h b/sound/soc/codecs/wm8741.h
index 56c1b1d4a681..c8835f65f342 100644
--- a/sound/soc/codecs/wm8741.h
+++ b/sound/soc/codecs/wm8741.h
@@ -194,6 +194,12 @@
#define WM8741_DITHER_SHIFT 0 /* DITHER - [1:0] */
#define WM8741_DITHER_WIDTH 2 /* DITHER - [1:0] */
+/* DIFF field values */
+#define WM8741_DIFF_MODE_STEREO 0 /* stereo normal */
+#define WM8741_DIFF_MODE_STEREO_REVERSED 2 /* stereo reversed */
+#define WM8741_DIFF_MODE_MONO_LEFT 1 /* mono left */
+#define WM8741_DIFF_MODE_MONO_RIGHT 3 /* mono right */
+
/*
* R32 (0x20) - ADDITONAL_CONTROL_1
*/
@@ -208,4 +214,8 @@
#define WM8741_SYSCLK 0
+struct wm8741_platform_data {
+ u32 diff_mode; /* Differential Output Mode */
+};
+
#endif