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path: root/sound/arm/pxa2xx-ac97-lib.c
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2017-09-04ASoC: arm: make pxa2xx-ac97-lib ac97 codec agnosticRobert Jarzmik
All pxa library functions don't use the input parameters for nothing but slot number. This simplifies their prototypes, and makes them usable by both the legacy ac97 bus and the new ac97 bus. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Mark Brown <broonie@kernel.org>
2014-06-09ASoC: pxa2xx-ac97: prepare and unprepare the clocksRobert Jarzmik
Add the clock prepare and unprepare call to the driver initialization phase. This will remove a warning once the PXA architecture is migrated to the clock infrastructure. Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-11-06ALSA: pxa2xx: Replace BUG() with snd_BUG()Takashi Iwai
BUG() used in the driver is just to spit the stack trace on buggy points, not really needed to stop the whole operation. For that purpose, it'd be more convenient to use snd_BUG() instead. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-10-18ALSA: pxa: slightly refactor reset handlingDmitry Eremin-Solenikov
PXA25x also shows some problems when using interrupts during reset handling. Thus do not use interrupts on all pxa kinds (to detect codec ready state). Instead use a common mdelay-loop on all platforms to detect codecs becoming ready. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Signed-off-by: Mark Brown <broonie@linaro.org>
2013-01-08ALSA: pxa27x: rename pxa27x_assert_ac97reset()Mike Dunn
This patch does nothing functionally, it just gives the function a new name and modifies the prototype slightly in order to clarify what the function is doing (which is not necessarily asserting the reset). Some commentary also added. Tested on a palm treo 680 machine. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2013-01-08ALSA: pxa27x: fix ac97 warm resetMike Dunn
This patch fixes some code that implements a work-around to a hardware bug in the ac97 controller on the pxa27x. A bug in the controller's warm reset functionality requires that the mfp used by the controller as the AC97_nRESET line be temporarily reconfigured as a generic output gpio (AF0) and manually held high for the duration of the warm reset cycle. This is what was done in the original code, but it was broken long ago by commit fb1bf8cd ([ARM] pxa: introduce processor specific pxa27x_assert_ac97reset()) which changed the mfp to a GPIO input instead of a high output. The fix requires the ac97 controller to obtain the gpio via gpio_request_one(), with arguments that configure the gpio as an output initially driven high. Tested on a palm treo 680 machine. Reportedly, this broken code only prevents a warm reset on hardware that lacks a pull-up on the line, which appears to be the case for me. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2013-01-08ALSA: pxa27x: fix ac97 cold resetMike Dunn
Cold reset on the pxa27x currently fails and pxa2xx_ac97_try_cold_reset: cold reset timeout (GSR=0x44) appears in the kernel log. Through trial-and-error (the pxa270 developer's manual is mostly incoherent on the topic of ac97 reset), I got cold reset to complete by setting the WARM_RST bit in the GCR register (and later noticed that pxa3xx does this for cold reset as well). Also, a timeout loop is needed to wait for the reset to complete. Tested on a palm treo 680 machine. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> Acked-by: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@vger.kernel.org
2012-12-07ALSA: pxa2xx: remove __dev* attributesBill Pemberton
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> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@gmail.com> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-03-29Merge tag 'cleanup2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull "ARM: cleanups of io includes" from Olof Johansson: "Rob Herring has done a sweeping change cleaning up all of the mach/io.h includes, moving some of the oft-repeated macros to a common location and removing a bunch of boiler plate. This is another step closer to a common zImage for multiple platforms." Fix up various fairly trivial conflicts (<mach/io.h> removal vs changes around it, tegra localtimer.o is *still* gone, yadda-yadda). * tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits) ARM: tegra: Include assembler.h in sleep.S to fix build break ARM: pxa: use common IOMEM definition ARM: dma-mapping: convert ARCH_HAS_DMA_SET_COHERENT_MASK to kconfig symbol ARM: __io abuse cleanup ARM: create a common IOMEM definition ARM: iop13xx: fix missing declaration of iop13xx_init_early ARM: fix ioremap/iounmap for !CONFIG_MMU ARM: kill off __mem_pci ARM: remove bunch of now unused mach/io.h files ARM: make mach/io.h include optional ARM: clps711x: remove unneeded include of mach/io.h ARM: dove: add explicit include of dove.h to addr-map.c ARM: at91: add explicit include of hardware.h to uncompressor ARM: ep93xx: clean-up mach/io.h ARM: tegra: clean-up mach/io.h ARM: orion5x: clean-up mach/io.h ARM: davinci: remove unneeded mach/io.h include [media] davinci: remove includes of mach/io.h ARM: OMAP: Remove remaining includes for mach/io.h ARM: msm: clean-up mach/io.h ...
2012-03-25ARM: pxa: use common IOMEM definitionRob Herring
pxa was missed in the moving of IOMEM to a common definition, so lots of IOMEM redefined warnings were introduced. So remove pxa IOMEM definition and fix all the fallout. Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Rob Herring <rob.herring@calxeda.com> Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Haojian Zhuang <haojian.zhuang@marvell.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Jaroslav Kysela <perex@perex.cz> Cc: Takashi Iwai <tiwai@suse.de> Cc: rtc-linux@googlegroups.com Cc: alsa-devel@alsa-project.org
2012-01-25sound: pxa2xx-ac97: include mach/irqs.h directlyRob Herring
In preparation of removing mach/irqs.h include from asm/irq.h, include mach/irqs.h directly. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-10-31sound: Add module.h to the previously silent sound usersPaul Gortmaker
Lots of sound drivers were getting module.h via the implicit presence of it in <linux/device.h> but we are going to clean that up. So fix up those users now. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-22sound: irq: Remove IRQF_DISABLEDYong Zhang
Since commit [e58aa3d2: genirq: Run irq handlers with interrupts disabled], We run all interrupt handlers with interrupts disabled and we even check and yell when an interrupt handler returns with interrupts enabled (see commit [b738a50a: genirq: Warn when handler enables interrupts]). So now this flag is a NOOP and can be removed. Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-03-02[ARM] pxa: remove now unnecessary pxa_gpio_mode() calls in ac97Eric Miao
Now most (if not all) PXA platforms have been switched to the new MFP API, it's rather safe to remove these unnecessary pxa_gpio_mode() calls in pxa2xx-ac97-lib.c now. Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-02[ARM] pxa: introduce processor specific pxa27x_assert_ac97reset()Eric Miao
This is really pxa27x specific and should be kept in pxa27x.c. With this newly introduced function, the original set_resetgpio_mode() is deprecated. Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2010-03-02[ARM] pxa: remove the unnecessary restoring of MFP registersEric Miao
MFP registers are saved and restored by the mfp sys_device before all other platform devices, and it is unnecessary here. Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com> Cc: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-05-11pxa2xx-ac97: fix reset gpio mode settingMike Rapoport
Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-04-15[ARM] pxa: merge AC97 platform data structuresMark Brown
Currently there are two possible platform datas for the PXA AC97 driver: one supported by the generic AC97 driver only which provides callbacks to allow board-specific configuration at stream startup and teardown, and another for pxa2xx-ac97-lib which allows configuration of the reset GPIO for PXA2xx CPUs. Obviously this won't actually work when using the generic AC97 driver since the drivers will attempt to parse the platform data in both formats. Fix this by merging the two structures. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Cc: Marek Vasut <marek.vasut@gmail.com> Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-04-06Merge branch 'topic/asoc' into for-linusTakashi Iwai
2009-04-02pxa2xx-ac97: fix displaying GSR after reset timeoutLuotao Fu
the variable gsr_bit is set in isr. It is however set to 0 and interrupts are disabled prior to reset. Hence it doesn't make a lot of sense to show the content of gsr_bit in case of a reset timeout. Signed-off-by: Luotao Fu <l.fu@pengutronix.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-03-28Merge branch 'origin' into develRussell King
Conflicts: sound/soc/pxa/pxa2xx-i2s.c
2009-03-19ALSA: Fix wrong pointer to dev_err() in arm/pxa2xx-ac97-lib.cTakashi Iwai
Fix the wrong device pointer passed to dev_err(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-03-15ASoC: Allow choice of ac97 gpio reset lineRobert Jarzmik
As the PXA27x series allow 2 gpios to reset the ac97 bus, allow through platform data configuration the definition of the correct gpio which will reset the AC97 bus. This comes from a silicon defect on the PXA27x series, where the gpio must be manually controlled in warm reset cases. Signed-off-by: Robert Jarzmik <rjarzmik@free.fr> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-03-09[ARM] pxa: remove unnecessary #include of pxa-regs.h and hardware.hEric Miao
pxa-regs.h and hardware.h are not intended for use directly in driver code, remove those unnecessary references. Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-01-05pxa2xx-ac97: switch AC unit to correct state before probingDmitry Baryshkov
If AC97 unit is in partially enabled state, early request_irq can trigger IRQ storm or even full hang up. Workaround this by forcibly switching ACLINK off at the start of the probe. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2008-12-02[ARM] pxa: move AC97 register definitions into dedicated regs-ac97.hEric Miao
The optimal change would be to move the AC97 register definitions into the AC97 driver, unfortunately, the registers are shared between several files. Move them into a dedicated regs-ac97.h first. Signed-off-by: Eric Miao <eric.miao@marvell.com>
2008-10-14ALSA: Fix pxa2xx-ac97-lib.c compilationMarc Zyngier
The last ALSA merge broke pxa2xx-ac97-lib.c, as it brought back references to cpu_is_pxa21x that Eric Miao removed in commit 0ffcbfd54ea81ca24c0749f55ca4fcf3e2bdc23e: [ARM] pxa: make cpu_is_pxa2* macros more consistent This patch gets rid of those references, and only keeps cpu_is_pxa25x(). Signed-off-by: Marc Zyngier <maz@misterjones.org> Acked-by: Eric Miao <eric.miao@marvell.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-09-23ALSA: pxa2xx-ac97-lib: support building for several CPUsDmitry Baryshkov
Support building of pxa2xx-ac97-lib for several CPUs by making code run-time selected, not only compile-time. [Fixed 3XX->3xx typos in ifdef checks -- broonie.] Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2008-09-23ALSA: Separate common pxa2xx-ac97 codeDmitry Baryshkov
ASoC and non-ASoC drivers for ACLINK on PXA share lot's of common code. Move all common code into separate module snd-pxa2xx-lib. [Fixed handing of SND_AC97_CODEC in Kconfig and some checkpatch warnings -- broonie] Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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