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

Commit 64d27069 authored by Dimitris Papastamos's avatar Dimitris Papastamos Committed by Mark Brown
Browse files

ASoC: soc-cache: Allow codec->cache_bypass to be used with snd_soc_hw_bulk_write_raw() 



If we specifically want to write a block of data to the hw bypassing the
cache, then allow this to happen inside snd_soc_hw_bulk_write_raw().

Signed-off-by: default avatarDimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: default avatarLiam Girdwood <lrg@ti.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 77530150

sound/soc/soc-cache.c

+6 −5
Original line number Diff line number Diff line
@@ -404,12 +404,13 @@ static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec, unsigned int r 
{

	int ret;



	/* Ensure that the base register is volatile.  Subsequently

	 * any other register that is touched by this routine should be

	 * volatile as well to ensure that we don't get out of sync with

	 * the cache.

	/* To ensure that we don't get out of sync with the cache, check

	 * whether the base register is volatile or if we've directly asked

	 * to bypass the cache.  Out of bounds registers are considered

	 * volatile.

	 */

	if (!snd_soc_codec_volatile_register(codec, reg)

	if (!codec->cache_bypass

	    && !snd_soc_codec_volatile_register(codec, reg)

	    && reg < codec->driver->reg_cache_size)

		return -EINVAL;