ASoC: fsl_sai: mark regmap as fast_io

The regmap is only ever used to access MMIO registers, so it's fair
to say that register access is fast.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Link: https://lore.kernel.org/r/20190717105156.15721-1-l.stach@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
index 1d1a447163e329a69aa65f4e7c936c671ccb4e21..6d3c6c8d50cefe2beaff7977a428fca089223002 100644 (file)
--- a/sound/soc/fsl/fsl_sai.c
+++ b/sound/soc/fsl/fsl_sai.c
@@ -763,6 +763,7 @@ static const struct regmap_config fsl_sai_regmap_config = {
        .reg_bits = 32,
        .reg_stride = 4,
        .val_bits = 32,
+       .fast_io = true,
 
        .max_register = FSL_SAI_RMR,
        .reg_defaults = fsl_sai_reg_defaults,