Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0d624275 authored by Vaibhav Bedia's avatar Vaibhav Bedia Committed by Mark Brown
Browse files

ASoC: Davinci: McASP: Flush the FIFO before enabling 



FIFO should be flushed before it is enabled for the first time.
This fixes the I/O errors reported by the ASoC core on a fresh boot

Signed-off-by: default avatarVaibhav Bedia <vaibhav.bedia@ti.com>
Signed-off-by: default avatarHebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 0865a75d

sound/soc/davinci/davinci-mcasp.c

+8 −2
Original line number Diff line number Diff line
@@ -380,14 +380,20 @@ static void mcasp_start_tx(struct davinci_audio_dev *dev) 
static void davinci_mcasp_start(struct davinci_audio_dev *dev, int stream)

{

	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {

		if (dev->txnumevt)	/* enable FIFO */

		if (dev->txnumevt) {	/* enable FIFO */

			mcasp_clr_bits(dev->base + DAVINCI_MCASP_WFIFOCTL,

								FIFO_ENABLE);

			mcasp_set_bits(dev->base + DAVINCI_MCASP_WFIFOCTL,

								FIFO_ENABLE);

		}

		mcasp_start_tx(dev);

	} else {

		if (dev->rxnumevt)	/* enable FIFO */

		if (dev->rxnumevt) {	/* enable FIFO */

			mcasp_clr_bits(dev->base + DAVINCI_MCASP_RFIFOCTL,

								FIFO_ENABLE);

			mcasp_set_bits(dev->base + DAVINCI_MCASP_RFIFOCTL,

								FIFO_ENABLE);

		}

		mcasp_start_rx(dev);

	}

}