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linux/sound/soc/sof/sof-acpi-dev.h

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ASoC: SOF: ACPI: avoid reverse module dependency The SOF-ACPI driver is backwards from the normal Linux model, it has a generic driver that knows about all the specific drivers, as opposed to having hardware specific drivers that link against a common framework. This requires ugly Kconfig magic and leads to missed dependencies as seen in this link error: arm-linux-gnueabi-ld: sound/soc/sof/sof-pci-dev.o: in function `sof_acpi_probe': sof-pci-dev.c:(.text+0x1c): undefined reference to `snd_intel_dsp_driver_probe' Change it to use the normal probe order of starting with a specific device in a driver, turning the sof-acpi-dev.c driver into a library (exported symbols are name-spaced to avoid symbol pollution). For backwards-compatibility with previous Kconfigs, the default values for platform drivers uses the top-level ACPI configurations. The modules were also renamed to allow for gradual transitions in test scripts. Co-developed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Bard Liao <bard.liao@intel.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20210302003125.1178419-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-01 17:31:20 -07:00
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
/*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
ASoC: SOF: Intel: clarify Copyright information For some reason a number of files included the "All rights reserved" statement. Good old copy-paste made sure this mistake proliferated. Remove the "All rights reserved" in all Intel-copyright to align with internal guidance. Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Link: https://lore.kernel.org/r/20240503140359.259762-2-pierre-louis.bossart@linux.intel.com Signed-off-by: Mark Brown <broonie@kernel.org>
2024-05-03 07:03:51 -07:00
* Copyright(c) 2021 Intel Corporation
ASoC: SOF: ACPI: avoid reverse module dependency The SOF-ACPI driver is backwards from the normal Linux model, it has a generic driver that knows about all the specific drivers, as opposed to having hardware specific drivers that link against a common framework. This requires ugly Kconfig magic and leads to missed dependencies as seen in this link error: arm-linux-gnueabi-ld: sound/soc/sof/sof-pci-dev.o: in function `sof_acpi_probe': sof-pci-dev.c:(.text+0x1c): undefined reference to `snd_intel_dsp_driver_probe' Change it to use the normal probe order of starting with a specific device in a driver, turning the sof-acpi-dev.c driver into a library (exported symbols are name-spaced to avoid symbol pollution). For backwards-compatibility with previous Kconfigs, the default values for platform drivers uses the top-level ACPI configurations. The modules were also renamed to allow for gradual transitions in test scripts. Co-developed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Bard Liao <bard.liao@intel.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20210302003125.1178419-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-01 17:31:20 -07:00
*/
#ifndef __SOUND_SOC_SOF_ACPI_H
#define __SOUND_SOC_SOF_ACPI_H
extern const struct dev_pm_ops sof_acpi_pm;
int sof_acpi_probe(struct platform_device *pdev, const struct sof_dev_desc *desc);
ASoC: SOF: Convert to platform remove callback returning void 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 ignored (apart from emitting a warning) 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. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). The SOF platform drivers all use either sof_of_remove() or sof_acpi_remove() which both return zero unconditionally. Change these functions to return void and the drivers to use .remove_new(). There is no semantical change. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20231009155945.285537-1-u.kleine-koenig@pengutronix.de Signed-off-by: Mark Brown <broonie@kernel.org>
2023-10-09 08:59:45 -07:00
void sof_acpi_remove(struct platform_device *pdev);
ASoC: SOF: ACPI: avoid reverse module dependency The SOF-ACPI driver is backwards from the normal Linux model, it has a generic driver that knows about all the specific drivers, as opposed to having hardware specific drivers that link against a common framework. This requires ugly Kconfig magic and leads to missed dependencies as seen in this link error: arm-linux-gnueabi-ld: sound/soc/sof/sof-pci-dev.o: in function `sof_acpi_probe': sof-pci-dev.c:(.text+0x1c): undefined reference to `snd_intel_dsp_driver_probe' Change it to use the normal probe order of starting with a specific device in a driver, turning the sof-acpi-dev.c driver into a library (exported symbols are name-spaced to avoid symbol pollution). For backwards-compatibility with previous Kconfigs, the default values for platform drivers uses the top-level ACPI configurations. The modules were also renamed to allow for gradual transitions in test scripts. Co-developed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com> Reviewed-by: Bard Liao <bard.liao@intel.com> Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Vinod Koul <vkoul@kernel.org> Link: https://lore.kernel.org/r/20210302003125.1178419-3-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-03-01 17:31:20 -07:00
#endif
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