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2015-05-20ALSA: sound/atmel/ac97c.c: remove unused variableArnd Bergmann1-1/+0
The recently added DT support for the ac97 driver is causing a gcc warning: sound/atmel/ac97c.c: In function 'atmel_ac97c_probe_dt': sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] const struct of_device_id *match; The variable is clearly unused, so we can remove it. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alexander Stein <alexanders83@web.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2015-01-07ALSA: sound/atmel/ac97c.c: Add device tree supportAlexander Stein1-3/+42
This adds device tree support for the AC97 controller. It uses the soc-ac97link bindings, but actually only ac97-reset is used. Signed-off-by: Alexander Stein <alexanders83@web.de> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-27ALSA: atmel: fix building the ac97 driver for at91-multiplatformArnd Bergmann1-3/+3
at91 will no longer export the mach/cpu.h and mach/hardware.h header files in the future, which would break building the atmel ac97c driver. Since the cpu_is_* check is only used to find out whether we are running on avr32 or arm/at91, we can hardcode that check in the ARM case. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: http://www.spinics.net/lists/arm-kernel/msg382068.html Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-14Merge tag 'driver-core-3.19-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core update from Greg KH: "Here's the set of driver core patches for 3.19-rc1. They are dominated by the removal of the .owner field in platform drivers. They touch a lot of files, but they are "simple" changes, just removing a line in a structure. Other than that, a few minor driver core and debugfs changes. There are some ath9k patches coming in through this tree that have been acked by the wireless maintainers as they relied on the debugfs changes. Everything has been in linux-next for a while" * tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits) Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries" fs: debugfs: add forward declaration for struct device type firmware class: Deletion of an unnecessary check before the function call "vunmap" firmware loader: fix hung task warning dump devcoredump: provide a one-way disable function device: Add dev_<level>_once variants ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries ath: use seq_file api for ath9k debugfs files debugfs: add helper function to create device related seq_file drivers/base: cacheinfo: remove noisy error boot message Revert "core: platform: add warning if driver has no owner" drivers: base: support cpu cache information interface to userspace via sysfs drivers: base: add cpu_device_create to support per-cpu devices topology: replace custom attribute macros with standard DEVICE_ATTR* cpumask: factor out show_cpumap into separate helper function driver core: Fix unbalanced device reference in drivers_probe driver core: fix race with userland in device_add() sysfs/kernfs: make read requests on pre-alloc files use the buffer. sysfs/kernfs: allow attributes to request write buffer be pre-allocated. fs: sysfs: return EGBIG on write if offset is larger than file size ...
2014-12-05ALSA: sound/atmel/ac97c.c: Add missing clock prepareAlexander Stein1-5/+5
Clocks must be prepared before enabling them. Do this in one step. Replace clk_enable with clk_prepare_enable and clk_disable with clk_disable_unprepare. This fixes the following warning: ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:895 __clk_enable+0x24/0x9c() Modules linked in: CPU: 0 PID: 1 Comm: swapper Tainted: G W 3.18.0-rc7+ #245 [<c000dce8>] (unwind_backtrace) from [<c000bcf0>] (show_stack+0x10/0x14) [<c000bcf0>] (show_stack) from [<c001664c>] (warn_slowpath_common+0x60/0x80) [<c001664c>] (warn_slowpath_common) from [<c00166fc>] (warn_slowpath_null+0x18/0x20) [<c00166fc>] (warn_slowpath_null) from [<c02fd7ac>] (__clk_enable+0x24/0x9c) [<c02fd7ac>] (__clk_enable) from [<c02fdbb4>] (clk_enable+0x18/0x2c) [<c02fdbb4>] (clk_enable) from [<c0322688>] (atmel_ac97c_probe+0x154/0x694) [<c0322688>] (atmel_ac97c_probe) from [<c0235e08>] (platform_drv_probe+0x48/0x94) [<c0235e08>] (platform_drv_probe) from [<c02345f8>] (driver_probe_device+0x138/0x350) [<c02345f8>] (driver_probe_device) from [<c02348bc>] (__driver_attach+0x68/0x8c) [<c02348bc>] (__driver_attach) from [<c0232bd0>] (bus_for_each_dev+0x70/0x84) [<c0232bd0>] (bus_for_each_dev) from [<c0233cd8>] (bus_add_driver+0xfc/0x1f8) [<c0233cd8>] (bus_add_driver) from [<c0234f0c>] (driver_register+0x9c/0xe0) [<c0234f0c>] (driver_register) from [<c0008ac4>] (do_one_initcall+0x110/0x1c8) [<c0008ac4>] (do_one_initcall) from [<c053cd58>] (kernel_init_freeable+0xf8/0x1b8) [<c053cd58>] (kernel_init_freeable) from [<c03c0414>] (kernel_init+0x8/0xe4) [<c03c0414>] (kernel_init) from [<c00096d0>] (ret_from_fork+0x14/0x24) ---[ end trace cb88537fdc8fa201 ]--- atmel_ac97c fffa0000.sound: AC'97 0 does not respond - RESET atmel_ac97c fffa0000.sound: AC'97 0 access is not valid [0xffffffff], removing mixer. ------------[ cut here ]------------ Signed-off-by: Alexander Stein <alexanders83@web.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-05ALSA: sound/atmel/ac97c.c: Fix device index for pcmAlexander Stein1-1/+1
chip->pdev->id is -1 by default. This is an invalid index resulting in device file names like /dev/snd/pcmC0D-1p. Signed-off-by: Alexander Stein <alexanders83@web.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-10-20ALSA: atmel: drop owner assignment from platform_driversWolfram Sang1-1/+0
A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-15dmaengine: dw: split dma-dw.h to platform and private partsAndy Shevchenko1-0/+1
The introduced include/linux/dma/dw.h is going to contain the private extensions and structures which are shared for dw_dmac users in the kernel. Meanwhile include/linux/platform_data/dma-dw.h keeps only platform related data types and definitions. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-09-11dmaengine: dw: move dw_dmac.h to where it belongs toAndy Shevchenko1-1/+1
There is a common storage for platform data related structures and definitions inside kernel source tree. The patch moves file from include/linux to include/linux/platform_data and renames it acoordingly. The users are also updated. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> [For the arch/avr32/.* and .*sound/atmel.*] Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2014-04-16ALSA: sound/atmel/ac97c.c: Convert to module_platform_driverAlexander Stein1-13/+2
This reduces some boilerplate code. Signed-off-by: Alexander Stein <alexanders83@web.de> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-02-14ALSA: atmel: Convert to snd_card_new() with a device pointerTakashi Iwai1-7/+3
Also remove superfluous snd_card_set_dev() calls. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-11-05ALSA: atmel: remove dependency on <mach/gpio.h>Linus Walleij1-1/+0
This include is completely unused since the AT91 sound driver actually uses gpiolib properly. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-05-03ALSA: atmel: Remove redundant platform_set_drvdata()Sachin Kamat1-2/+0
Commit 0998d06310 (device-core: Ensure drvdata = NULL when no driver is bound) removes the need to set driver data field to NULL. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-04-29ALSA: pcm_format_to_bits strong-typed conversionEldad Zack1-2/+2
Add a function to handle conversion from snd_pcm_format_t to bitwise with proper typing. Change such conversions to use this function and silence sparse warnings. Signed-off-by: Eldad Zack <eldad@fogrefinery.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-12-07ALSA: atmel: remove __dev* attributesBill Pemberton1-5/+5
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-20ALSA: sound/atmel/ac97c.c: fix error return codeJulia Lawall1-8/+4
In the first case, the second test of whether retval is negative is redundant. It is dropped and the previous and subsequent tests are combined. In the second case, add an initialization of retval on failure of ioremap. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> ( if@p1 (\(ret < 0\|ret != 0\)) { ... return ret; } | ret@p1 = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-08-09ALSA: platform: Check CONFIG_PM_SLEEP instead of CONFIG_PMTakashi Iwai1-1/+1
When CONFIG_PM is set but CONFIG_PM_SLEEP is unset, SIMPLE_DEV_PM_OPS() ignores the given functions, and this leads to compile warnings. For avoiding this, simply check CONFIG_PM_SLEEP instead of CONFIG_PM. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-03ALSA: convert PM ops of platform_driver to new pm opsTakashi Iwai1-8/+9
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-07-02ALSA: Add missing .owner=THIS_MODULE to platform_driver definitionsTakashi Iwai1-0/+1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-05-11ALSA: atmel/ac97c: correct the unexpected behavior when using uninitial ↵Bo Shen1-0/+2
value for reset pin When pdata->reset_pin is passed with a negative value (means gpio is invalid), then chip->reset_pin will not be assigned to a vaule, it will use default value 0. This will cause unexpected behavior. So, add this patch to correct. Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-02-22dmaengine/dw_dmac: Fix dw_dmac user drivers to adapt to slave_config changesViresh Kumar1-8/+33
There are few existing user drivers of dw_dmac. They will break as soon as we remove unused fields from struct dw_dma_slave. This patch focuses to fix these user drivers to use dma_slave_config() routine. Signed-off-by: Viresh Kumar <viresh.kumar@st.com> Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
2012-01-17Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds1-5/+5
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits) ARM: mach-shmobile: specify CHCLR registers on SH7372 dma: shdma: fix runtime PM: clear channel buffers on reset dma/imx-sdma: save irq flags when use spin_lock in sdma_tx_submit dmaengine/ste_dma40: clear LNK on channel startup dmaengine: intel_mid_dma: remove legacy pm interface ASoC: mxs: correct 'direction' of device_prep_dma_cyclic dmaengine: intel_mid_dma: error path fix dmaengine: intel_mid_dma: locking and freeing fixes mtd: gpmi-nand: move to dma_transfer_direction mtd: fix compile error for gpmi-nand mmc: mxs-mmc: fix the dma_transfer_direction migration dmaengine: add DMA_TRANS_NONE to dma_transfer_direction dma: mxs-dma: Don't use CLKGATE bits in CTRL0 to disable DMA channels dma: mxs-dma: make mxs_dma_prep_slave_sg() multi user safe dma: mxs-dma: Always leave mxs_dma_init() with the clock disabled. dma: mxs-dma: fix a typo in comment DMA: PL330: Remove pm_runtime_xxx calls from pl330 probe/remove video i.MX IPU: Fix display connections i.MX IPU DMA: Fix wrong burstsize settings dmaengine/ste_dma40: allow fixed physical channel ... Fix up conflicts in drivers/dma/{Kconfig,mxs-dma.c,pl330.c} The conflicts looked pretty trivial, but I'll ask people to verify them.
2011-12-19ALSA: atmel/ac97c: using software reset instead hardware reset if not availableBo Shen1-0/+4
Signed-off-by: Bo Shen <voice.shen@atmel.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-10-31sound-soc: move to dma_transfer_directionVinod Koul1-5/+5
fixup usage of dma direction by introducing dma_transfer_direction, this patch moves asoc drivers to use new enum Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com> Cc: Liam Girdwood <lrg@ti.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2011-07-11Merge branch 'master' into for-nextJiri Kosina1-1/+1
Sync with Linus' tree to be able to apply pending patches that are based on newer code already present upstream.
2011-06-28ALSA: atmel - update author email for ABDAC, AC97C and AT73C213Hans-Christian Egtvedt1-1/+1
This patch updates the email address of the sound drivers supported by me to an email account I will use on a more regular basis in the future. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-06-10treewide: Convert uses of struct resource to resource_size(ptr)Joe Perches1-1/+1
Several fixes as well where the +1 was missing. Done via coccinelle scripts like: @@ struct resource *ptr; @@ - ptr->end - ptr->start + 1 + resource_size(ptr) and some grep and typing. Mostly uncompiled, no cross-compilers. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-01-25ALSA: fix invalid hardware.h include in ac97c for AVR32 architectureHans-Christian Egtvedt1-1/+4
This patch fixes the non-compiling AC97C driver for AVR32 architecture by include mach/hardware.h only for AT91 architecture. The AVR32 architecture does not supply the hardware.h include file. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> CC: stable@kernel.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-06-08ALSA: atmel: set "channel A event" output to debugYegor Yefremov1-1/+1
Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-25ALSA: AC97: add full duplex support for atmel AT91 and AVR.Sedji Gaouaou1-4/+12
This patch add full duplex support on AT91 and AVR. It was a bug: we needed to check first if there are some chips opened so we could enable both reception and sending of the data. Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-25ALSA: AC97: add AC97 support for AT91.Sedji Gaouaou1-85/+254
This patch add AC97 support for ATMEL AT91, using the AVR32 code. While AVR is using a DMA, the AT91 chips are using a Peripheral Data Controller. Signed-off-by: Sedji Gaouaou <sedji.gaouaou@atmel.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: replace bus_id with dev_name()Hans-Christian Egtvedt1-2/+2
This patch replaces the references to bus_id to the new dev_name() API. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: cleanup registers when removing driverHans-Christian Egtvedt1-0/+4
This patch will set the channel A and control channel mode register to zero before disabling the AC97C peripheral. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: do a proper reset of the external codecHans-Christian Egtvedt1-7/+7
This patch will enable the AC97C before resetting the external codec, leaving the AC97C disabled will result in floating I/O lines that can affect the reset procedure. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: enable interrupts to catch events for error reportingHans-Christian Egtvedt1-1/+76
This patch will enable interrupts from AC97C and report about error conditions that occurs. On channel A both overrun and underrun will be enabled depending if playback and/or capture are enabled. On the control channel the overrun interrupt is enabled. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: set correct size for buffer hardware parameterHans-Christian Egtvedt1-2/+2
This patch will set a proper maximum bytes for the buffer, which is: channels * bytes per sample * maximum periods * maximum bytes per period. It also sets the minimum periods to 6, a value chosen from testing, with a minimum of 6 periods the system has good time to fill in new audio data without skipping. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: do not overwrite OCA and ICA when assigning channelsHans-Christian Egtvedt1-5/+18
This patch will take care not to overwrite OCA and ICA registers when assigning input and output channels. It will also make sure the registers are at a known state when enabling a channel and clean up properly in case of an error. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: remove dead break statements after return in switch caseHans-Christian Egtvedt1-2/+0
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-02-05ALSA: Add ALSA driver for Atmel AC97 controllerHans-Christian Egtvedt1-0/+932
This patch adds ALSA support for the AC97 controller found on Atmel AVR32 devices. Tested on ATSTK1006 + ATSTK1000 with a development board with a AC97 codec. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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