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2021-01-31ALSA: ac97: Constify static struct attribute_groupRikard Falkeborn1-1/+1
The only usage of ac97_adapter_attr_group is to put its address in an array of pointers to const attribute_group structs. Make it const to allow the compiler to put it in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Link: https://lore.kernel.org/r/20210131001241.2278-2-rikard.falkeborn@gmail.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-09-03ALSA: ac97: (cosmetic) align argument namesPierre-Louis Bossart1-1/+1
Fix cppcheck warning: sound/ac97/bus.c:133:60: style:inconclusive: Function 'snd_ac97_bus_scan_one' argument 1 names different: declaration 'ac97' definition 'adrv'. [funcArgNamesDifferent] Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Link: https://lore.kernel.org/r/20200902212133.30964-14-pierre-louis.bossart@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-01-03ALSA: ac97: Constify snd_ac97_bus_ops definitionsTakashi Iwai1-1/+1
Now snd_ac97_bus() takes the const ops pointer, so we can define the snd_ac97_bus_ops locally as const as well for further optimization. There should be no functional changes by this patch. Link: https://lore.kernel.org/r/20200103081714.9560-24-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-07-23ALSA: ac97: Fix double free of ac97_codec_deviceDing Xiang1-9/+4
put_device will call ac97_codec_release to free ac97_codec_device and other resources, so remove the kfree and other redundant code. Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus") Signed-off-by: Ding Xiang <dingxiang@cmss.chinamobile.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner4-16/+4
Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner2-0/+2
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-20ALSA: ac97: Fix of-node refcount unbalanceTakashi Iwai1-1/+1
ac97_of_get_child_device() take the refcount of the node explicitly via of_node_get(), but this leads to an unbalance. The for_each_child_of_node() loop itself takes the refcount for each iteration node, hence you don't need to take the extra refcount again. Fixes: 2225a3e6af78 ("ALSA: ac97: add codecs devicetree binding") Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-08-19ALSA: ac97: fix unbalanced pm_runtime_enableLihua Yao1-0/+2
Runtime PM is enabled at ac97_bus_probe() and should be disabled at ac97_bus_remove(). Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus") Signed-off-by: Lihua Yao <ylhuajnu@163.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-08-19ALSA: ac97: fix check of pm_runtime_get_sync failureLihua Yao1-1/+1
pm_runtime_get_sync returns negative on failure. Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus") Signed-off-by: Lihua Yao <ylhuajnu@163.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-08-19ALSA: ac97: fix device initialization in the compat layerLihua Yao1-2/+17
ac97->dev is an object of 'struct device' type. It should be initialized via device_initialize() or device_register(). Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus") Signed-off-by: Lihua Yao <ylhuajnu@163.com> Tested-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-06-25ALSA: ac97: add codecs devicetree bindingRobert Jarzmik1-0/+26
Add a devicetree binding for codecs. This is especially useful if the AC97 bitclk clock is provided by the codec, as it has to be described in the devicetree description for the ac97 bus code to aquire it. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-02-12ALSA: ac97: kconfig: Remove select of undefined symbol AC97Ulf Magnusson1-1/+0
The AC97_BUS_NEW Kconfig symbol selects the globally undefined symbol AC97. Robert Jarzmik confirmed in https://lkml.org/lkml/2018/2/7/96 that the select was put in by mistake and can be safely removed, with no other changes required. Remove it. Fixes: 74426fbff66e ("ALSA: ac97: add an ac97 bus") Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2017-09-04ALSA: ac97: add an ac97 busRobert Jarzmik6-0/+705
AC97 is a bus for sound usage. It enables for a AC97 AC-Link to link one controller to 0 to 4 AC97 codecs. The goal of this new implementation is to implement a device/driver model for AC97, with an automatic scan of the bus and automatic discovery of AC97 codec devices. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Reviewed-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Mark Brown <broonie@kernel.org>
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