diff options
| author | Stefan Binding <sbinding@opensource.cirrus.com> | 2023-12-21 16:25:17 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2023-12-29 16:28:29 +0300 |
| commit | d110858a6925827609d11db8513d76750483ec06 (patch) | |
| tree | 2453efe3723baa170fad3e1967002f1ab07281e9 /sound/pci/hda/cs35l41_hda_spi.c | |
| parent | ee694e7db47e1af00ffb29f569904a9ed576868f (diff) | |
| download | linux-d110858a6925827609d11db8513d76750483ec06.tar.xz | |
ALSA: hda: cs35l41: Prevent firmware load if SPI speed too low
Some laptops without _DSD have the SPI speed set very low in the BIOS.
Since the SPI controller uses this speed as its max speed, the SPI
transactions are very slow. Firmware download writes to many registers,
and if the SPI speed is too slow, it can take a long time to download.
For this reason, disable firmware loading if the maximum SPI speed is
too low. Without Firmware, audio playback will work, but the volume
will be low to ensure safe operation of the CS35L41.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Cc: <stable@vger.kernel.org> # v6.7+
Link: https://lore.kernel.org/r/20231221132518.3213-3-sbinding@opensource.cirrus.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/cs35l41_hda_spi.c')
| -rw-r--r-- | sound/pci/hda/cs35l41_hda_spi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/pci/hda/cs35l41_hda_spi.c b/sound/pci/hda/cs35l41_hda_spi.c index eb287aa5f782..b76c0dfd5fef 100644 --- a/sound/pci/hda/cs35l41_hda_spi.c +++ b/sound/pci/hda/cs35l41_hda_spi.c @@ -26,7 +26,7 @@ static int cs35l41_hda_spi_probe(struct spi_device *spi) return -ENODEV; return cs35l41_hda_probe(&spi->dev, device_name, spi_get_chipselect(spi, 0), spi->irq, - devm_regmap_init_spi(spi, &cs35l41_regmap_spi)); + devm_regmap_init_spi(spi, &cs35l41_regmap_spi), SPI); } static void cs35l41_hda_spi_remove(struct spi_device *spi) |