diff options
| author | Claudiu Beznea <claudiu.beznea@microchip.com> | 2022-11-17 13:37:48 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-11-18 12:57:04 +0100 |
| commit | 215450eb8b0fac000a42c1cd52c8966fb5159037 (patch) | |
| tree | dca9e68d417511d90e94fa7ef4f159a20160b92c | |
| parent | ASoC: SOF: probes: Check ops before memory allocation (diff) | |
| download | linux-215450eb8b0fac000a42c1cd52c8966fb5159037.tar.xz linux-215450eb8b0fac000a42c1cd52c8966fb5159037.zip | |
ASoC: mchp-spdiftx: simplify locking around ctrl->ch_stat
Use a temporary variable to keep the AES3 value. With this a
spin_unlock_irqrestore() call has been removed from the final code.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221117123750.291911-2-claudiu.beznea@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/atmel/mchp-spdiftx.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/sound/soc/atmel/mchp-spdiftx.c b/sound/soc/atmel/mchp-spdiftx.c index ab2d7a791f39..4e231cec9045 100644 --- a/sound/soc/atmel/mchp-spdiftx.c +++ b/sound/soc/atmel/mchp-spdiftx.c @@ -355,6 +355,7 @@ static int mchp_spdiftx_hw_params(struct snd_pcm_substream *substream, struct mchp_spdiftx_mixer_control *ctrl = &dev->control; u32 mr; unsigned int bps = params_physical_width(params) / 8; + unsigned char aes3; int ret; dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u\n", @@ -440,48 +441,48 @@ static int mchp_spdiftx_hw_params(struct snd_pcm_substream *substream, mr |= SPDIFTX_MR_BPS(bps); - spin_lock_irqsave(&ctrl->lock, flags); - ctrl->ch_stat[3] &= ~IEC958_AES3_CON_FS; switch (params_rate(params)) { case 22050: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_22050; + aes3 = IEC958_AES3_CON_FS_22050; break; case 24000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_24000; + aes3 = IEC958_AES3_CON_FS_24000; break; case 32000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_32000; + aes3 = IEC958_AES3_CON_FS_32000; break; case 44100: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_44100; + aes3 = IEC958_AES3_CON_FS_44100; break; case 48000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_48000; + aes3 = IEC958_AES3_CON_FS_48000; break; case 88200: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_88200; + aes3 = IEC958_AES3_CON_FS_88200; break; case 96000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_96000; + aes3 = IEC958_AES3_CON_FS_96000; break; case 176400: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_176400; + aes3 = IEC958_AES3_CON_FS_176400; break; case 192000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_192000; + aes3 = IEC958_AES3_CON_FS_192000; break; case 8000: case 11025: case 16000: case 64000: - ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_NOTID; + aes3 = IEC958_AES3_CON_FS_NOTID; break; default: dev_err(dev->dev, "unsupported sample frequency: %u\n", params_rate(params)); - spin_unlock_irqrestore(&ctrl->lock, flags); return -EINVAL; } + spin_lock_irqsave(&ctrl->lock, flags); + ctrl->ch_stat[3] &= ~IEC958_AES3_CON_FS; + ctrl->ch_stat[3] |= aes3; mchp_spdiftx_channel_status_write(dev); spin_unlock_irqrestore(&ctrl->lock, flags); |