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2019-03-19ASoC: wm_adsp: Add HALO MPU fault loggingRichard Fitzgerald2-0/+85
A Halo Core DSP has a memory protection unit that can trap and signal memory access faults. This patch adds a function that dumps the fault information. The interrupt reaches the host via the parent codec interrupt controller so this fault function is exported to be called by the codec driver. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Add support for new Halo core DSPsWen Shi3-29/+363
The Halo core is a new generation of audio DSP architecture from Cirrus Logic. A new iteration of the WMFW file format (v3) is also added, for this new architecture. Currently this format is not supported on the old ADSP2 architecture however support may be added for it in the future. Signed-off-by: Wen Shi <wenshi@opensource.cirrus.com> Signed-off-by: Piotr Stankiewicz <piotrs@opensource.cirrus.com> Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: mediatek: Reduce repititive code on mtk_regmap_update_bits.Pi-Hsun Shih1-28/+18
Change the signature of mtk_regmap_update_bits to also take a shift, and warn when reg >= 0 but shift < 0. This reduce the code repetition on the calling side, and prevent future UBSAN warning when some of the xxx_shift and xxx_reg are both set to -1. Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: mediatek: Fix UBSAN warning.Pi-Hsun Shih5-70/+4
In sound/soc/mediatek/common/mtk-afe-fe-dai.c, when xxx_reg is -1, it's a no-op to call mtk_regmap_update_bits, but since both xxx_reg and xxx_shift are set to -1, the (1 << xxx_shift) in the argument would trigger a UBSAN warning. Fix the warning by setting those xxx_shift to 0 instead. Note that since the code explicitly checks .mono_shift >= 0 and .fs_shift >= 0 before using them in '<<' operator, those two members are not set to 0. Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Factor out DSP specific operationsCharles Keepax5-153/+271
In preparation for the addition of more types of DSP core refactor the handling of DSP specific operations such as starting the memory or enabling the core into a set of callbacks. This should make it easier to add new core types and allow for more code reuse between them. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Factor out parsing of firmware ID headerCharles Keepax1-15/+16
There is no need to duplicate this code for both ADSP1 and 2 as the handling is exactly the same. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Refactor firmware status readingCharles Keepax1-25/+18
In preparation for further additions refactor the reading of the firmware status. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Move wm_adsp2_set_dspclk to CODEC driversRichard Fitzgerald5-24/+26
The original wm_adsp2_early_event took an additional frequency argument for clocking control so could not be used directly as a DAPM callback. But this setup could equally be done by the codec driver function wrapping wm_adsp2_early event. In preparation for adding support for new core types wm_adsp2_set_dspclk has been exported, and the freq argument removed so that it can be used directly as a DAPM callback. Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Don't export wm_adsp2_lockCharles Keepax2-32/+30
This function is not presently called from outside the adsp code and nor should it be, as such stop exporting it. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19Merge branch 'asoc-5.1' into asoc-5.2 for wmadspMark Brown2-7/+33
2019-03-19ASoC: wm_adsp: Shutdown any compressed streams on DSP watchdog timeoutCharles Keepax2-0/+22
If a watchdog timeout is received from the DSP it is safe to assume the DSP is not functioning anymore and as such any active compressed streams should be put into an error state. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Add locking to wm_adsp2_bus_errorCharles Keepax1-3/+8
Best to lock across handling the bus error to ensure the DSP doesn't change power state as we are reading the status registers. Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Correct error messages in wm_adsp_buffer_get_errorCharles Keepax1-2/+2
During recent logging improvements it seems two error messages lost their updates during patch application/rebasing. Add these back in. Fixes: 0d3fba3e7a56 ("ASoC: wm_adsp: Improve logging messages") Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: wm_adsp: Correct handling of compressed streams that restartCharles Keepax1-2/+1
Previously support was added to allow streams to be stopped and started again without the DSP being power cycled and this was done by clearing the buffer state in trigger start. Another supported use-case is using the DSP for a trigger event then opening the compressed stream later to receive the audio, unfortunately clearing the buffer state in trigger start destroys the data received from such a trigger. Correct this issue by moving the call to wm_adsp_buffer_clear to be in trigger stop instead. Fixes: 61fc060c40e6 ("ASoC: wm_adsp: Support streams which can start/stop with DSP active") Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: topology: free link string in errorBard liao1-0/+3
Some strings are allocated by kstrdup, but not freed when error happened. Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-19ASoC: topology: free stream_name of dai_drvBard liao1-0/+5
The stream_name is allocated by kstrdup. We have to free it when the dai is removed or return from error. Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18Merge branch 'for-5.1' of ↵Mark Brown21-169/+341
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.2
2019-03-18ASoC: audio-graph: add graph_parse_mclk_fs()Kuninori Morimoto1-27/+23
It is parsing mclk_fs at many places, but it should be same operation. This patch adds graph_parse_mclk_fs() and parse it. This patch also renames similar function graph_get_conversion() to graph_parse_convert(). Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: audio-graph: rename graph_get_conversion() to graph_parse_convert()Kuninori Morimoto1-6/+10
use same naming rule, and this patch add missing of_node_put() on it Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: simple-card: add simple_parse_mclk_fs()Kuninori Morimoto1-11/+22
It is parsing mclk_fs at many places, but it should be same operation. This patch adds simple_parse_mclk_fs() and parse it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: simple-card: rename simple_get_conversion() to simple_parse_convert()Kuninori Morimoto1-5/+5
use same naming rule Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: rt5682: recording has no sound after bootingShuming Fan1-9/+5
If ASRC turns on, HW will use clk_dac as the reference clock whether recording or playback. Both of clk_dac and clk_adc should set proper clock while using ASRC. Signed-off-by: Shuming Fan <shumingf@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: rt5682: fix jack type detection issueShuming Fan1-7/+5
The jack type detection needs the main bias power of analog. The modification makes sure the main bias power on/off while jack plug/unplug. Signed-off-by: Shuming Fan <shumingf@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: rt5682: Check JD status when system resumeShuming Fan1-17/+17
The IRQ function may not work when system suspend. We remove snd_soc_dapm_force_enable_pin function call to make sure the bias off when idle and run into suspend/resume function. Signed-off-by: Shuming Fan <shumingf@realtek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: mediatek: mt8183: skip for i2s5 in mck_disableTzung-Bi Shih1-0/+4
Skip for i2s5 in mck_disable which is also bypassed in mck_enable. Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: Intel: bytcr_rt5651: Add BYT_RT5651_JD_NOT_INV quirkHans de Goede1-2/+20
Add BYT_RT5651_JD_NOT_INV quirk for devices with an inverted (active-high instead of the normal active-low) jack-detect switch. And add a quirk for the Complet Electro Serv MY8307 tablet which has an inverted jack-detect switch (and a mono-speaker). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: rt5651: Add support for active-high jack detectHans de Goede2-7/+41
Some boards use a jack-receptacle with a switch which reports the jack-inserted status as active-high, rather then the standard active-low reporting most jacks use. This commit adds support for it. This is activated by a boolean "realtek,jack-detect-not-inverted" device-property. The not-inverted in the device-property name, rather then active-high, was chosen to keep the device-property naming consistent with the rt5640 codec driver. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: stm32: spdifrx: add power managementOlivier Moysan1-3/+39
Add suspend and resume sleep callbacks to STM32 SPDIFRX driver, to support system low power modes. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: dpcm: prevent snd_soc_dpcm use after freeKaiChieh Chuang2-7/+27
The dpcm get from fe_clients/be_clients may be free before use Add a spin lock at snd_soc_card level, to protect the dpcm instance. The lock may be used in atomic context, so use spin lock. possible race condition between void dpcm_be_disconnect( ... list_del(&dpcm->list_be); list_del(&dpcm->list_fe); kfree(dpcm); ... and for_each_dpcm_fe() for_each_dpcm_be*() race condition example Thread 1: snd_soc_dapm_mixer_update_power() -> soc_dpcm_runtime_update() -> dpcm_be_disconnect() -> kfree(dpcm); Thread 2: dpcm_fe_dai_trigger() -> dpcm_be_dai_trigger() -> snd_soc_dpcm_can_be_free_stop() -> if (dpcm->fe == fe) Excpetion Scenario: two FE link to same BE FE1 -> BE FE2 -> Thread 1: switch of mixer between FE2 -> BE Thread 2: pcm_stop FE1 Exception: Unable to handle kernel paging request at virtual address dead0000000000e0 pc=<> [<ffffff8960e2cd10>] dpcm_be_dai_trigger+0x29c/0x47c sound/soc/soc-pcm.c:3226 if (dpcm->fe == fe) lr=<> [<ffffff8960e2f694>] dpcm_fe_dai_do_trigger+0x94/0x26c Backtrace: [<ffffff89602dba80>] notify_die+0x68/0xb8 [<ffffff896028c7dc>] die+0x118/0x2a8 [<ffffff89602a2f84>] __do_kernel_fault+0x13c/0x14c [<ffffff89602a27f4>] do_translation_fault+0x64/0xa0 [<ffffff8960280cf8>] do_mem_abort+0x4c/0xd0 [<ffffff8960282ad0>] el1_da+0x24/0x40 [<ffffff8960e2cd10>] dpcm_be_dai_trigger+0x29c/0x47c [<ffffff8960e2f694>] dpcm_fe_dai_do_trigger+0x94/0x26c [<ffffff8960e2edec>] dpcm_fe_dai_trigger+0x3c/0x44 [<ffffff8960de5588>] snd_pcm_do_stop+0x50/0x5c [<ffffff8960dded24>] snd_pcm_action+0xb4/0x13c [<ffffff8960ddfdb4>] snd_pcm_drop+0xa0/0x128 [<ffffff8960de69bc>] snd_pcm_common_ioctl+0x9d8/0x30f0 [<ffffff8960de1cac>] snd_pcm_ioctl_compat+0x29c/0x2f14 [<ffffff89604c9d60>] compat_SyS_ioctl+0x128/0x244 [<ffffff8960283740>] el0_svc_naked+0x34/0x38 [<ffffffffffffffff>] 0xffffffffffffffff Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18ASoC: simple-amplifier: Make gpio property optionalMylène Josserand1-1/+2
Some amplifier may not have a GPIO to control the power, but instead simply rely on the regulator to power up and down the amplifier. In order to support those setups, let's make the GPIO optional. Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18Merge tag 'v5.1-rc1' into asoc-5.2Mark Brown187-2280/+2630
Linux 5.1-rc1
2019-03-18Merge tag 'v5.1-rc1' into asoc-5.1Mark Brown190-2348/+2768
Linux 5.1-rc1
2019-03-16Merge tag 'sound-fix-5.1-rc1' of ↵Linus Torvalds6-32/+125
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "Some cleaning after the first batch; mostly about HD-audio quirks but also some NULL dereference fixes in corner cases and a random build error fix, too" * tag 'sound-fix-5.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda/realtek - Add support headset mode for New DELL WYSE NB ALSA: hda/realtek - Add support headset mode for DELL WYSE AIO ALSA: hda/realtek: merge alc_fixup_headset_jack to alc295_fixup_chromebook ALSA: pcm: Fix function name in kernel-doc comment ALSA: hda: hdmi - add Icelake support ALSA: hda - add more quirks for HP Z2 G4 and HP Z240 ALSA: hda/realtek - Fixed Headset Mic JD not stable ALSA: hda/realtek: Enable headset MIC of Acer TravelMate X514-51T with ALC255 ALSA: hda/tegra: avoid build error without CONFIG_PM ALSA: usx2y: Fix potential NULL pointer dereference ALSA: hda: Avoid NULL pointer dereference at snd_hdac_stream_start()
2019-03-15ASoC: topology: create tlv before soc_tplg_init_kcontrolBard liao1-6/+8
Component driver may want to use tlv data. Create tlv before soc_tplg_init_kcontrol so component driver can use the tlv data in the control_load ops. Signed-off-by: Bard liao <yung-chuan.liao@linux.intel.com> Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-14ALSA: hda/realtek - Add support headset mode for New DELL WYSE NBKailang Yang1-0/+1
Enable headset mode support for new WYSE NB platform. Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-14ALSA: hda/realtek - Add support headset mode for DELL WYSE AIOKailang Yang1-0/+26
This patch will enable WYSE AIO for Headset mode. Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-14ALSA: hda/realtek: merge alc_fixup_headset_jack to alc295_fixup_chromebookJaroslav Kysela1-30/+13
The ALC225_FIXUP_HEADSET_JACK fixup can be merged to alc295_fixup_chromebook. There are no other users for ALC225_FIXUP_HEADSET_JACK other than the chromebook hardware. Fixes: 10f5b1b85ed1 ("ALSA: hda/realtek - Fixed Headset Mic JD not stable") Cc: Kailang Yang <kailang@realtek.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-13ALSA: hda: hdmi - add Icelake supportJaroslav Kysela1-16/+51
This is just a port of the ASoC Icelake HDMI codec code to the legacy HDA driver with some cleanups. ASoC commit 019033c854a20e10f691f6cc0e897df8817d9521: "ASoC: Intel: hdac_hdmi: add Icelake support" Signed-off-by: Jaroslav Kysela <perex@perex.cz> Cc: Bard liao <bard.liao@intel.com> Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-13ASoC: nau8810: automatic selecting BCLK in I2S master modeJohn Hsu1-0/+18
The driver will select correct BCLK automatically according to BCLK and FS information in I2S master mode. Signed-off-by: John Hsu <KCHSU0@nuvoton.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-13ASoC: nau8810: fix the typo of function nameJohn Hsu1-2/+2
Correct the typo at the function name. Signed-off-by: John Hsu <KCHSU0@nuvoton.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-13ASoC: nau8810: use 64-bit arithmetic instead of 32-bitJohn Hsu1-1/+1
Add suffix ULL to constant 256 in order to give the compiler complete information about the proper arithmetic to use. Signed-off-by: John Hsu <KCHSU0@nuvoton.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-13ASoC: samsung: odroid: Fix clock configuration for 44100 sample rateSylwester Nawrocki1-2/+2
After commit fbeec965b8d1c ("ASoC: samsung: odroid: Fix 32000 sample rate handling") the audio root clock frequency is configured improperly for 44100 sample rate. Due to clock rate rounding it's 20070401 Hz instead of 22579000 Hz. This results in a too low value of the PSR clock divider in the CPU DAI driver and too fast actual sample rate for fs=44100. E.g. 1 kHz tone has actual 1780 Hz frequency (1 kHz * 20070401/22579000 * 2). Fix this by increasing the correction passed to clk_set_rate() to take into account inaccuracy of the EPLL frequency properly. Fixes: fbeec965b8d1c ("ASoC: samsung: odroid: Fix 32000 sample rate handling") Reported-by: JaeChul Lee <jcsing.lee@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-13ASoC: nau8810: fix the issue of widget with prefixed nameJohn Hsu1-2/+2
The driver changes the stream name of DAC and ADC to avoid the issue of widget with prefixed name. When the machine adds prefixed name for codec, the stream name of DAI may not find the widgets. Signed-off-by: John Hsu <KCHSU0@nuvoton.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-13ALSA: hda - add more quirks for HP Z2 G4 and HP Z240Jaroslav Kysela2-2/+7
Apply the HP_MIC_NO_PRESENCE fixups for the more HP Z2 G4 and HP Z240 models. Reported-by: Jeff Burrell <jeff.burrell@hp.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-13ALSA: hda/realtek - Fixed Headset Mic JD not stableKailang Yang1-1/+28
It will be lose Mic JD state when Chrome OS boot and headset was plugged. Implement of reset combo jack JD. It will show normally. Fixes: e854747d7593 ("ALSA: hda/realtek - Enable headset button support for new codec") Signed-off-by: Kailang Yang <kailang@realtek.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-13ALSA: hda/realtek: Enable headset MIC of Acer TravelMate X514-51T with ALC255Jian-Hong Pan1-0/+12
The Acer TravelMate X514-51T with ALC255 cannot detect the headset MIC until ALC255_FIXUP_ACER_HEADSET_MIC quirk applied. Although, the internal DMIC uses another module - snd_soc_skl as the driver. We still need the NID 0x1a in the quirk to enable the headset MIC. Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com> Signed-off-by: Kailang Yang <kailang@realtek.com> Cc: <stable@vger.kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-13ALSA: hda/tegra: avoid build error without CONFIG_PMArnd Bergmann1-8/+4
The #ifdef protection around the PM functions is wrong, leading to a failed reference in some configurations: sound/pci/hda/hda_tegra.c: In function 'hda_tegra_runtime_suspend': sound/pci/hda/hda_tegra.c:273:2: error: implicit declaration of function 'hda_tegra_disable_clocks'; did you mean 'hda_tegra_enable_clocks'? [-Werror=implicit-function-declaration] Better remove the #ifdefs entirely and rely on the compiler silently dropping unused functions marked __maybe_unused. Fixes: 707e0759f2f4 ("ALSA: hda/tegra: implement runtime suspend/resume") Acked-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-13ALSA: usx2y: Fix potential NULL pointer dereferenceAditya Pakki1-0/+5
usb_alloc_urb() can fail due to kmalloc failure and push the error upstream. Further this can cause a NULL pointer dereference in init_pipe_urbs(). This patch avoids such a scenario. Signed-off-by: Aditya Pakki <pakki001@umn.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-13ALSA: hda: Avoid NULL pointer dereference at snd_hdac_stream_start()Mariusz Ceier1-1/+4
For ca0132 codec, azx_dev->stream is NULL during firmware loading. Calling snd_hdac_get_stream_stripe_ctl unconditionally causes NULL pointer dereference in that function. Fixes: 9b6f7e7a296e ("ALSA: hda: program stripe bits for controller") Signed-off-by: Mariusz Ceier <mceier+kernel@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-03-11ASoC: axi-i2s: let both capture and playback be optionalLuca Ceresoli1-20/+48
Both the capture and playback channels are optional in the axi_i2s IP block. Reflect this in the driver by enabling only the channel(s) that have a DMA. Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Mark Brown <broonie@kernel.org>