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* DMA-API: sound: fix dma mask handling in a lot of driversRussell King2013-10-311-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | This code sequence is unsafe in modules: static u64 mask = DMA_BIT_MASK(something); ... if (!dev->dma_mask) dev->dma_mask = &mask; as if a module is reloaded, the mask will be pointing at the original module's mask address, and this can lead to oopses. Moreover, they all follow this with: if (!dev->coherent_dma_mask) dev->coherent_dma_mask = mask; where 'mask' is the same value as the statically defined mask, and this bypasses the architecture's check on whether the DMA mask is possible. Fix these issues by using the new dma_coerce_coherent_and_mask() function. Acked-by: Mark Brown <broonie@linaro.org> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* samsung: don't bother with setting VM_IOAl Viro2013-06-291-1/+0
| | | | | | io_remap_pfn_range() will set it just fine Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ASoC: samsung: export idma_reg_addr_initArnd Bergmann2013-04-111-0/+1
| | | | | | | | The idma_reg_addr_init function is used by the samsung i2s driver, which can be a loadable module, so we have to export this function. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: samsung: use irq resource for idmaArnd Bergmann2013-04-111-2/+8
| | | | | | | | | With multiplatform kernels, we cannot use hardwired IRQ numbers in device drivers. This changes the idma driver to use a proper resource, like all other drivers do. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Samsung: remove __dev* attributesBill Pemberton2012-12-101-3/+3
| | | | | | | | | | | 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: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Fix idma build after update for channel count checkMark Brown2012-01-081-0/+1
| | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: check for substream not channels_min in pcm enginesJoachim Eastwood2012-01-071-2/+1
| | | | | | | | | | | | | | | This is a follow up on 53dea36c70c1857 which fixes the other affected pcm engines. Description from 53dea36c70c1857: Don't rely on the codec's channels_min information to decide wheter or not allocate a substream's DMA buffer. Rather check if the substream itself was allocated previously. Without this patch I was seeing null-pointer dereferenc in atmel-pcm. Signed-off-by: Joachim Eastwood <joachim.eastwood@jotron.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Staticise asoc_idma_platformMark Brown2011-12-141-1/+1
| | | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Sangbeom Kim <sbkim73@samsung.com>
* ASoC: Fix __iomem annotation for IDMA registersMark Brown2011-11-291-1/+1
| | | | | | | We always store the register address as __iomem but pass it around as a plain void * which upsets sparse. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Convert Samsung directory to module_platform_driverMark Brown2011-11-251-11/+1
| | | | | | | Saves some boilerplate code. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Sangbeom Kim <sbkim73@samsung.com>
* sound: Add module.h to the previously silent sound usersPaul Gortmaker2011-10-311-0/+1
| | | | | | | | 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>
* ASoC: SAMSUNG: Add I2S0 internal dma driverSangbeom Kim2011-08-121-0/+453
I2S in Exynos4 and S5PC110(S5PV210) has a internal dma. It can be used low power audio mode and 2nd channel transfer. This patch can support idma. [Reapplied after dependencies propagated through in 3.1-rc1. --broonie] Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Acked-by: Jassi Brar <jassisinghbrar@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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