From c354b54cfdf63587154da4fa0731c1fbda44c589 Mon Sep 17 00:00:00 2001 From: Sergej Sawazki Date: Wed, 13 May 2015 11:39:01 +0200 Subject: 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 Acked-by: Charles Keepax Signed-off-by: Mark Brown --- sound/soc/codecs/wm8741.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'sound/soc/codecs/wm8741.h') 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 -- cgit v1.2.3