Align with other AHUB module drivers and use normal system
sleep for ASRC as well.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/Message-Id: <1687433656-7892-6-git-send-email-spujar@nvidia.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20230315150745.67084-146-u.kleine-koenig@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/tegra/tegra186_asrc.c:90:12: error: ‘tegra186_asrc_runtime_resume’ defined but not used [-Werror=unused-function]
static int tegra186_asrc_runtime_resume(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
sound/soc/tegra/tegra186_asrc.c:80:12: error: ‘tegra186_asrc_runtime_suspend’ defined but not used [-Werror=unused-function]
static int tegra186_asrc_runtime_suspend(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Mark these functions as __maybe_unused to avoid this kind of warning.
Fixes: a2df8c2d5b ("ASoC: tegra: Add Tegra186 based ASRC driver")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/20220411020908.580-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Asynchronous Sample Rate Converter (ASRC) converts the sampling frequency
of the input signal from one frequency to another. It can handle over a
wide range of sample rate ratios (freq_in/freq_out) from 1:24 to 24:1.
ASRC has two modes of operation. One where ratio can be programmed in SW
and the other where it gets the information from ratio estimator module.
The latter mode above can help address the cases where the sample rate is
not known at the stream set up time or is potentially time varying.
In addition, the ratio between input and output sample rate can be any
arbitrary number and the input and output clocks could be derived from
asynchronous clocks.
This patch registers ASRC driver with ASoC framework. The component driver
exposes DAPM widgets, routes and kcontrols for the device. The DAI driver
exposes ASRC interfaces, which can be used to connect different components
in the ASoC layer. Makefile and Kconfig support is added to allow build
the driver.
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Link: https://lore.kernel.org/r/1648735412-32220-3-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>
