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* ALSA: pxa27x: fix ac97 cold resetMike Dunn2013-01-171-2/+6
| | | | | | | | | | | | | | | | | | | | | | commit 41b645c8624df6ace020a8863ad1449d69140f7d upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* [ARM] pxa: remove now unnecessary pxa_gpio_mode() calls in ac97Eric Miao2010-03-021-8/+0
| | | | | | | | | | 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>
* [ARM] pxa: introduce processor specific pxa27x_assert_ac97reset()Eric Miao2010-03-021-44/+6
| | | | | | | | | 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>
* [ARM] pxa: remove the unnecessary restoring of MFP registersEric Miao2010-03-021-10/+0
| | | | | | | | | 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>
* pxa2xx-ac97: fix reset gpio mode settingMike Rapoport2009-05-111-1/+1
| | | | | | 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>
* [ARM] pxa: merge AC97 platform data structuresMark Brown2009-04-151-1/+1
| | | | | | | | | | | | | | | | | 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>
* Merge branch 'topic/asoc' into for-linusTakashi Iwai2009-04-061-5/+10
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| * pxa2xx-ac97: fix displaying GSR after reset timeoutLuotao Fu2009-04-021-5/+10
| | | | | | | | | | | | | | | | | | 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>
* | Merge branch 'origin' into develRussell King2009-03-281-5/+66
|\ \ | |/ | | | | | | Conflicts: sound/soc/pxa/pxa2xx-i2s.c
| * ALSA: Fix wrong pointer to dev_err() in arm/pxa2xx-ac97-lib.cTakashi Iwai2009-03-191-1/+1
| | | | | | | | | | | | Fix the wrong device pointer passed to dev_err(). Signed-off-by: Takashi Iwai <tiwai@suse.de>
| * ASoC: Allow choice of ac97 gpio reset lineRobert Jarzmik2009-03-151-5/+66
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* | [ARM] pxa: remove unnecessary #include of pxa-regs.h and hardware.hEric Miao2009-03-091-1/+0
|/ | | | | | | 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>
* pxa2xx-ac97: switch AC unit to correct state before probingDmitry Baryshkov2009-01-051-9/+16
| | | | | | | | | 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>
* [ARM] pxa: move AC97 register definitions into dedicated regs-ac97.hEric Miao2008-12-021-1/+1
| | | | | | | | 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>
* ALSA: Fix pxa2xx-ac97-lib.c compilationMarc Zyngier2008-10-141-6/+6
| | | | | | | | | | | | | | | 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>
* ALSA: pxa2xx-ac97-lib: support building for several CPUsDmitry Baryshkov2008-09-231-78/+137
| | | | | | | | | | | 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>
* ALSA: Separate common pxa2xx-ac97 codeDmitry Baryshkov2008-09-231-0/+325
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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