diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0065-ASoC-wm8804-Implement-MCLK-configuration-options-add.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0065-ASoC-wm8804-Implement-MCLK-configuration-options-add.patch | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0065-ASoC-wm8804-Implement-MCLK-configuration-options-add.patch b/target/linux/brcm2708/patches-4.4/0065-ASoC-wm8804-Implement-MCLK-configuration-options-add.patch index fa02163..b71141c 100644 --- a/target/linux/brcm2708/patches-4.4/0065-ASoC-wm8804-Implement-MCLK-configuration-options-add.patch +++ b/target/linux/brcm2708/patches-4.4/0065-ASoC-wm8804-Implement-MCLK-configuration-options-add.patch @@ -1,16 +1,16 @@ -From 6148931ae669f041a7036c9eb0ec1b225275c1dd Mon Sep 17 00:00:00 2001 +From 34e0545c33b0f444a5dd8c066cfe37420e95db33 Mon Sep 17 00:00:00 2001 From: Daniel Matuschek <info@crazy-audio.com> Date: Wed, 15 Jan 2014 21:41:23 +0100 -Subject: [PATCH 065/423] ASoC: wm8804: Implement MCLK configuration options, - add 32bit support WM8804 can run with PLL frequencies of 256xfs and 128xfs - for most sample rates. At 192kHz only 128xfs is supported. The existing - driver selects 128xfs automatically for some lower samples rates. By using an - additional mclk_div divider, it is now possible to control the behaviour. - This allows using 256xfs PLL frequency on all sample rates up to 96kHz. It - should allow lower jitter and better signal quality. The behavior has to be - controlled by the sound card driver, because some sample frequency share the - same setting. e.g. 192kHz and 96kHz use 24.576MHz master clock. The only - difference is the MCLK divider. +Subject: [PATCH] ASoC: wm8804: Implement MCLK configuration options, add 32bit + support WM8804 can run with PLL frequencies of 256xfs and 128xfs for most + sample rates. At 192kHz only 128xfs is supported. The existing driver selects + 128xfs automatically for some lower samples rates. By using an additional + mclk_div divider, it is now possible to control the behaviour. This allows + using 256xfs PLL frequency on all sample rates up to 96kHz. It should allow + lower jitter and better signal quality. The behavior has to be controlled by + the sound card driver, because some sample frequency share the same setting. + e.g. 192kHz and 96kHz use 24.576MHz master clock. The only difference is the + MCLK divider. This also added support for 32bit data. |