linux/sound
Arnaud Mouiche d9f2a20287 ASoC: fsl_ssi: Fix samples being dropped at Playback startup
If the capture is already running while playback is started, it is highly
probable (>80% in a 8 channels scenario) that samples are lost between
the DMA and TX fifo.

The reason is that SIER.TDMAE is set before STCR.TFEN0, leaving a time
window where the FIFO doesn't receive the samples written by the DMA.

This particular case happened only if capture is already enabled as
SCR.SSIEN is already set at the playback startup instant.

Signed-off-by: Arnaud Mouiche <arnaud.mouiche@invoxia.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Caleb Crome <caleb@crome.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-05-13 12:15:31 +01:00
..
aoa
arm dma, mm/pat: Rename dma_*_writecombine() to dma_*_wc() 2016-03-09 14:57:51 +01:00
atmel
core ALSA: ctl: change return value in compatibility layer so that it's the same value in core implementation 2016-03-17 14:11:36 +01:00
drivers Merge branch 'akpm' (patches from Andrew) 2016-03-18 19:26:54 -07:00
firewire ALSA: dice: use structure to represent register parameters instead of array with basic type element 2016-03-10 15:44:39 +01:00
hda ALSA: hda - Add a sanity check of pin / port mapping on i915 HDMI/DP 2016-03-10 15:54:42 +01:00
i2c ALSA: i2c: constify snd_i2c_ops structures 2015-11-30 11:40:08 +01:00
isa ALSA: Add missing dependency on CONFIG_SND_TIMER 2016-01-27 07:10:38 +01:00
mips ALSA: Remove deprecated AU1X00 AC97 driver 2016-02-08 08:17:15 +01:00
oss sound/oss: remove VIRT_TO_BUS dependency 2015-12-09 14:40:51 +01:00
parisc
pci sound fixes for 4.6-rc1 2016-03-22 12:13:53 -07:00
pcmcia
ppc PCI: Remove includes of asm/pci-bridge.h 2016-02-05 16:29:28 -06:00
sh
soc ASoC: fsl_ssi: Fix samples being dropped at Playback startup 2016-05-13 12:15:31 +01:00
sparc ALSA: Add missing dependency on CONFIG_SND_TIMER 2016-01-27 07:10:38 +01:00
spi ALSA: at73c213: manage SSC clock 2016-01-20 09:59:27 +01:00
synth ALSA: emux: constify nrpn_conv_table structures 2016-01-06 10:19:49 +01:00
usb sound fixes for 4.6-rc1 2016-03-22 12:13:53 -07:00
ac97_bus.c
Kconfig
last.c
Makefile
sound_core.c sound: fix check for error condition of register_chrdev() 2015-11-07 11:14:30 +01:00
sound_firmware.c