diff options
Diffstat (limited to 'sound/soc/uniphier/aio-core.c')
| -rw-r--r-- | sound/soc/uniphier/aio-core.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/sound/soc/uniphier/aio-core.c b/sound/soc/uniphier/aio-core.c index 1711361fc0c2..6d50042a4571 100644 --- a/sound/soc/uniphier/aio-core.c +++ b/sound/soc/uniphier/aio-core.c @@ -84,6 +84,27 @@ u64 aio_rb_space_to_end(struct uniphier_aio_sub *sub) } /** + * aio_iecout_set_enable - setup IEC output via SoC glue + * @chip: the AIO chip pointer + * @enable: false to stop the output, true to start + * + * Set enabled or disabled S/PDIF signal output to out of SoC via AOnIEC pins. + * This function need to call at driver startup. + * + * The regmap of SoC glue is specified by 'socionext,syscon' optional property + * of DT. This function has no effect if no property. + */ +void aio_iecout_set_enable(struct uniphier_aio_chip *chip, bool enable) +{ + struct regmap *r = chip->regmap_sg; + + if (!r) + return; + + regmap_write(r, SG_AOUTEN, (enable) ? ~0 : 0); +} + +/** * aio_chip_set_pll - set frequency to audio PLL * @chip : the AIO chip pointer * @source: PLL |