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2020-06-19Merge tag 'v5.4.47' into imx_5.4.yJason Liu
* tag 'v5.4.47': (2193 commits) Linux 5.4.47 KVM: arm64: Save the host's PtrAuth keys in non-preemptible context KVM: arm64: Synchronize sysreg state on injecting an AArch32 exception ... Conflicts: arch/arm/boot/dts/imx6qdl.dtsi arch/arm/mach-imx/Kconfig arch/arm/mach-imx/common.h arch/arm/mach-imx/suspend-imx6.S arch/arm64/boot/dts/freescale/imx8qxp-mek.dts arch/powerpc/include/asm/cacheflush.h drivers/cpufreq/imx6q-cpufreq.c drivers/dma/imx-sdma.c drivers/edac/synopsys_edac.c drivers/firmware/imx/imx-scu.c drivers/net/ethernet/freescale/fec.h drivers/net/ethernet/freescale/fec_main.c drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c drivers/net/phy/phy_device.c drivers/perf/fsl_imx8_ddr_perf.c drivers/usb/cdns3/gadget.c drivers/usb/dwc3/gadget.c include/uapi/linux/dma-buf.h Signed-off-by: Jason Liu <jason.hui.liu@nxp.com>
2020-05-02ASoC: stm32: spdifrx: fix regmap status checkOlivier Moysan
commit a168dae5ea14283e8992d5282237bb0d6a3e1c06 upstream. Release resources when exiting on error. Fixes: 1a5c0b28fc56 ("ASoC: stm32: spdifrx: manage identification registers") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20200318144125.9163-2-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-05-02ASoC: stm32: sai: fix sai probeOlivier Moysan
commit e2bcb65782f91390952e849e21b82ed7cb05697f upstream. pcm config must be set before snd_dmaengine_pcm_register() call. Fixes: 0d6defc7e0e4 ("ASoC: stm32: sai: manage rebind issue") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20200417142122.10212-1-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-17ASoC: stm32: sai: Add missing cleanupJulia Lawall
[ Upstream commit 7506baeed8d05fc164254c64af14cfed2ac14446 ] The commit 0d6defc7e0e4 ("ASoC: stm32: sai: manage rebind issue") converts some function calls to their non-devm equivalents. The appropriate cleanup code was added to the remove function, but not to the probe function. Add a call to snd_dmaengine_pcm_unregister to compensate for the call to snd_dmaengine_pcm_register in case of subsequent failure. Fixes: commit 0d6defc7e0e4 ("ASoC: stm32: sai: manage rebind issue") Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Acked-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/1586099028-5104-1-git-send-email-Julia.Lawall@inria.fr Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-25ASoC: stm32: sai: manage rebind issueOlivier Moysan
[ Upstream commit 0d6defc7e0e437a9fd53622f7fd85740f38d5693 ] The commit e894efef9ac7 ("ASoC: core: add support to card rebind") allows to rebind the sound card after a rebind of one of its component. With this commit, the sound card is actually rebound, but may be no more functional. The following problems have been seen with STM32 SAI driver. 1) DMA channel is not requested: With the sound card rebind the simplified call sequence is: stm32_sai_sub_probe snd_soc_register_component snd_soc_try_rebind_card snd_soc_instantiate_card devm_snd_dmaengine_pcm_register The problem occurs because the pcm must be registered, before snd_soc_instantiate_card() is called. Modify SAI driver, to change the call sequence as follows: stm32_sai_sub_probe devm_snd_dmaengine_pcm_register snd_soc_register_component snd_soc_try_rebind_card 2) DMA channel is not released: dma_release_channel() is not called when devm_dmaengine_pcm_release() is executed. This occurs because SND_DMAENGINE_PCM_DRV_NAME component, has already been released through devm_component_release(). devm_dmaengine_pcm_release() should be called before devm_component_release() to avoid this problem. Call snd_dmaengine_pcm_unregister() and snd_soc_unregister_component() explicitly from SAI driver, to have the right sequence. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Message-Id: <20200304102406.8093-1-olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-03-08Merge tag 'v5.4.24' into imx_5.4.yJason Liu
Merge Linux stable release v5.4.24 into imx_5.4.y * tag 'v5.4.24': (3306 commits) Linux 5.4.24 blktrace: Protect q->blk_trace with RCU kvm: nVMX: VMWRITE checks unsupported field before read-only field ... Signed-off-by: Jason Liu <jason.hui.liu@nxp.com> Conflicts: arch/arm/boot/dts/imx6sll-evk.dts arch/arm/boot/dts/imx7ulp.dtsi arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi drivers/clk/imx/clk-composite-8m.c drivers/gpio/gpio-mxc.c drivers/irqchip/Kconfig drivers/mmc/host/sdhci-of-esdhc.c drivers/mtd/nand/raw/gpmi-nand/gpmi-nand.c drivers/net/can/flexcan.c drivers/net/ethernet/freescale/dpaa/dpaa_eth.c drivers/net/ethernet/mscc/ocelot.c drivers/net/ethernet/stmicro/stmmac/stmmac_main.c drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c drivers/net/phy/realtek.c drivers/pci/controller/mobiveil/pcie-mobiveil-host.c drivers/perf/fsl_imx8_ddr_perf.c drivers/tee/optee/shm_pool.c drivers/usb/cdns3/gadget.c kernel/sched/cpufreq.c net/core/xdp.c sound/soc/fsl/fsl_esai.c sound/soc/fsl/fsl_sai.c sound/soc/sof/core.c sound/soc/sof/imx/Kconfig sound/soc/sof/loader.c
2020-01-23ASoC: stm32: dfsdm: fix 16 bits recordOlivier Moysan
commit 8e55ea19125b65cffe42747359af99d545e85f2f upstream. In stm32_afsdm_pcm_cb function, the transfer size is provided in bytes. However, samples are copied as 16 bits words from iio buffer. Divide by two the transfer size, to copy the right number of samples. Fixes: 1e7f6e1c69f0 ("ASoC: stm32: dfsdm: add 16 bits audio record support") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20200110131131.3191-1-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23ASoC: stm32: sai: fix possible circular lockingOlivier Moysan
commit a14bf98c045bf119b7e779f186528e38c6428830 upstream. In current driver, locks can be taken as follows: - Register access: take a lock on regmap config and then on clock. - Master clock provider: take a lock on clock and then on regmap config. This can lead to the circular locking summarized below. Remove peripheral clock management through regmap framework, and manage peripheral clock in driver instead. On register access, lock on clock is taken first, which allows to avoid possible locking issue. [ 6696.561513] ====================================================== [ 6696.567670] WARNING: possible circular locking dependency detected [ 6696.573842] 4.19.49 #866 Not tainted [ 6696.577397] ------------------------------------------------------ [ 6696.583566] pulseaudio/6439 is trying to acquire lock: [ 6696.588697] 87b0a25b (enable_lock){..-.}, at: clk_enable_lock+0x64/0x128 [ 6696.595377] [ 6696.595377] but task is already holding lock: [ 6696.601197] d858f825 (stm32_sai_sub:1342:(sai->regmap_config)->lock){....} ... [ 6696.812513] Possible unsafe locking scenario: [ 6696.812513] [ 6696.818418] CPU0 CPU1 [ 6696.822935] ---- ---- [ 6696.827451] lock(stm32_sai_sub:1342:(sai->regmap_config)->lock); [ 6696.833618] lock(enable_lock); [ 6696.839350] lock(stm32_sai_sub:1342: (sai->regmap_config)->lock); [ 6696.848035] lock(enable_lock); Fixes: 03e78a242a15 ("ASoC: stm32: sai: add h7 support") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20200109083254.478-1-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17ASoC: stm32: spdifrx: fix input pin state managementOlivier Moysan
commit 3b7658679d88b5628939f9bdc8e613f79cd821f9 upstream. Changing input state in iec capture control is not safe, as the pin state may be changed concurrently by ASoC framework. Remove pin state handling in iec capture control. Note: This introduces a restriction on capture control, when pin sleep state is defined in device tree. In this case channel status can be captured only when an audio stream capture is active. Fixes: f68c2a682d44 ("ASoC: stm32: spdifrx: add power management") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20191204154333.7152-4-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17ASoC: stm32: spdifrx: fix race condition in irq handlerOlivier Moysan
commit 86e1956af4c863d653136fd6e5694adf2054dbaa upstream. When snd_pcm_stop() is called in interrupt routine, substream context may have already been released. Add protection on substream context. Fixes: 03e4d5d56fa5 ("ASoC: stm32: Add SPDIFRX support") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20191204154333.7152-3-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-17ASoC: stm32: spdifrx: fix inconsistent lock stateOlivier Moysan
commit 2859b1784031b5709446af8f6039c467f136e67d upstream. In current spdifrx driver locks may be requested as follows: - request lock on iec capture control, when starting synchronization. - request lock in interrupt context, when spdifrx stop is called from IRQ handler. Take lock with IRQs disabled, to avoid the possible deadlock. Lockdep report: [ 74.278059] ================================ [ 74.282306] WARNING: inconsistent lock state [ 74.290120] -------------------------------- ... [ 74.314373] CPU0 [ 74.314377] ---- [ 74.314381] lock(&(&spdifrx->lock)->rlock); [ 74.314396] <Interrupt> [ 74.314400] lock(&(&spdifrx->lock)->rlock); Fixes: 03e4d5d56fa5 ("ASoC: stm32: Add SPDIFRX support") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20191204154333.7152-2-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-25Revert "ASoC: Remove dev_err() usage after platform_get_irq()"Dong Aisheng
This reverts commit cf9441adb1a35506d7606866c382b9d8614169b5.
2019-11-05ASoC: stm32: sai: add restriction on mmap supportOlivier Moysan
Do not support mmap in S/PDIF mode. In S/PDIF mode the buffer has to be copied, to allow the channel status bits insertion. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20191104133654.28750-1-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-10-18ASoC: stm32: sai: fix sysclk management on shutdownOlivier Moysan
The commit below, adds a call to sysclk callback on shutdown. This introduces a regression in stm32 SAI driver, as some clock services are called twice, leading to unbalanced calls. Move processing related to mclk from shutdown to sysclk callback. When requested frequency is 0, assume shutdown and release mclk. Fixes: 2458adb8f92a ("SoC: simple-card-utils: set 0Hz to sysclk when shutdown") Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Link: https://lore.kernel.org/r/20191018082040.31022-1-olivier.moysan@st.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-08-02ASoC: Remove dev_err() usage after platform_get_irq()Stephen Boyd
We don't need dev_err() messages when platform_get_irq() fails now that platform_get_irq() prints an error message itself when something goes wrong. Let's remove these prints with a simple semantic patch. // <smpl> @@ expression ret; struct platform_device *E; @@ ret = ( platform_get_irq(E, ...) | platform_get_irq_byname(E, ...) ); if ( \( ret < 0 \| ret <= 0 \) ) { ( -if (ret != -EPROBE_DEFER) -{ ... -dev_err(...); -... } | ... -dev_err(...); ) ... } // </smpl> While we're here, remove braces on if statements that only have one statement (manually). Cc: Liam Girdwood <lgirdwood@gmail.com> Cc: Mark Brown <broonie@kernel.org> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.com> Cc: alsa-devel@alsa-project.org Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Link: https://lore.kernel.org/r/20190730181557.90391-50-swboyd@chromium.org Signed-off-by: Mark Brown <broonie@kernel.org>
2019-07-31ASoC: stm32: sai: use devm_platform_ioremap_resource() to simplify codeYueHaibing
Use devm_platform_ioremap_resource() to simplify the code a bit. This is detected by coccinelle. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Link: https://lore.kernel.org/r/20190727150738.54764-16-yuehaibing@huawei.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-26Merge tag 'v5.2-rc6' into asoc-5.3Mark Brown
Linux 5.2-rc6
2019-06-20ASoC: stm32: dfsdm: add 16 bits audio record supportOlivier Moysan
Add support of audio 16 bits format record to STM32 DFSDM driver. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-06-03ASoC: stm32: sai: manage identification registersOlivier Moysan
Add support of identification registers in STM32 SAI. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner
Based on 1 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 distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
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>
2019-05-20Merge tag 'v5.2-rc1' into asoc-5.3Mark Brown
Linux 5.2-rc1
2019-05-09Merge tag 'asoc-v5.2-5' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.2 A bunch of driver specific fixes that came in since the initial pull request for v5.2, mainly warning fixes for the newly added Sound Open Firmware code which people appeared to only start looking at after I'd sent the pull request.
2019-05-08Merge tag 'asoc-v5.2-2' of ↵Takashi Iwai
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus ASoC: Fixes for v5.2 A bunch of driver specific fixes that came in since the initial pull request for v5.2, mainly warning fixes for the newly added Sound Open Firmware code which people appeared to only start looking at after I'd sent the pull request.
2019-05-08ASoC: stm32: i2s: manage identification registersOlivier Moysan
Add support of identification registers in STM32 I2S. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08ASoC: stm32: i2s: update pcm hardware constraintsOlivier Moysan
- Set period minimum size. Ensure at least 5ms period up to 48kHz/16 bits to prevent underrun/overrun. - Remove MDMA constraints on period maximum size and set period maximum to half the buffer maximum size. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06ASoC: stm32: spdifrx: manage identification registersOlivier Moysan
Add support of identification registers in STM32 SPDIFRX. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06ASoC: stm32: spdifrx: change trace level on iec controlOlivier Moysan
Change trace level to debug to avoid spurious messages. Return quietly when accessing iec958 control, while no S/PDIF signal is available. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06ASoC: stm32: spdifrx: update pcm hardware constraintsOlivier Moysan
- Set period minimum size. Ensure at least 5ms period up to 48kHz/16 bits to prevent underrun/overrun. - Remove MDMA constraints on period maximum size and set period maximum to half the buffer maximum size. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-06Merge branch 'asoc-5.2' into asoc-nextMark Brown
2019-05-06Merge branch 'asoc-5.1' into asoc-linusMark Brown
2019-04-26ASoC: stm32: sai: simplify dai driver initialisationArnaud Pouliquen
Suppress the useless dynamic allocation of the dai driver structure. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-26Merge branch 'asoc-5.1' into asoc-5.2Mark Brown
2019-04-25ASoC: stm32: i2s: return the get_irq errorFabien Dessenne
During probe, return the "get_irq" error value instead of -ENOENT. This allows the driver to be deferred probed if needed. Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-10ASoC: stm32: sai: fix master clock managementOlivier Moysan
When master clock is used, master clock rate is set exclusively. Parent clocks of master clock cannot be changed after a call to clk_set_rate_exclusive(). So the parent clock of SAI kernel clock must be set before. Ensure also that exclusive rate operations are balanced in STM32 SAI driver. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-08ASoC: stm32: fix sai driver name initialisationArnaud Pouliquen
This patch fixes the sai driver structure overwriting which results in a cpu dai name equal NULL. Fixes: 3e086ed ("ASoC: stm32: add SAI driver") Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-04-04Merge branch 'asoc-5.1' into asoc-5.2Mark Brown
2019-03-25ASoC: stm32: sai: add power managementOlivier Moysan
Add support of low power modes to STM32 SAI driver. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20ASoC: stm32: dfsdm: add mmap supportOlivier Moysan
Enable direct access (mmap) support. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20ASoC: stm32: dfsdm: fix debugfs warnings on entry creationOlivier Moysan
Register platform component with a prefix, to avoid warnings on debugfs entries creation, due to component name redundancy. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-20ASoC: stm32: dfsdm: manage multiple prepareOlivier Moysan
The DFSDM must be stopped when a new setting is applied. restart systematically DFSDM on multiple prepare calls, to apply changes. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-18Merge branch 'for-5.1' of ↵Mark Brown
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-5.2
2019-03-18ASoC: stm32: spdifrx: add power managementOlivier Moysan
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>
2019-03-18Merge tag 'v5.1-rc1' into asoc-5.2Mark Brown
Linux 5.1-rc1
2019-03-18Merge tag 'v5.1-rc1' into asoc-5.1Mark Brown
Linux 5.1-rc1
2019-03-11ASoC: stm32: i2s: fix registers declaration in regmapOlivier Moysan
- Declare SR as volatile, as it is changed by hardware. - Remove TXDR from readable and volatile register list, as it is intended for write accesses only. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11ASoC: stm32: i2s: use default dai nameOlivier Moysan
Use default DAI name based on dev_name function. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11ASoC: stm32: i2s: improve channel capabilities handlingOlivier Moysan
Use alsa snd_pcm_hw_constraint_single service to manage channels restriction. This provides better status on driver limitations, to the application. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-11ASoC: stm32: i2s: change trigger tracesOlivier Moysan
Update traces to log capture/playback stream start/stop. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-03ASoC: stm32: sai: fix set_sync serviceOlivier Moysan
Add error check on set_sync function return. Add of_node_put() as of_get_parent() takes a reference which has to be released. Signed-off-by: Olivier Moysan <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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