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path: root/sound/soc/samsung/idma.c
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* ASoC: samsung: Remove unused now unused struct s3c_dma_paramsSylwester Nawrocki2016-08-081-1/+0Star
| | | | | | | | There is no user of this data structure now, all users have been converted to use struct snd_dmaengine_dai_dma_data instead. Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
* ASoC: samsung: drop owner assignment from platform_driversWolfram Sang2014-10-201-1/+0Star
| | | | | | | 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>
* ASoC: samsung idma: Add proper annotation for casting iomem pointersLars-Peter Clausen2014-08-171-2/+2
| | | | | | | | | | | | | | | | It is not always possible to interchange iomem pointers with normal pointers, which why we have annotations for iomem pointers and warn when casting them to a normal pointer or vice versa. In this case the casting is fine and unfortunately necessary so add the proper annotations to tell code checkers that it is intentional. This silences the following warnings from sparse: sound/soc/samsung/idma.c:354:20: warning: incorrect type in argument 1 (different address spaces) expected void volatile [noderef] <asn:2>*addr got unsigned char *area sound/soc/samsung/idma.c:372:22: warning: cast removes address space of expression Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
* ASoC: samsung: Remove unused variable from idma.cSachin Kamat2014-06-271-2/+1Star
| | | | | | | ‘iiscon’ is not used in the function. Remove it. Signed-off-by: Sachin Kamat <sachin.kamat@samsung.com> Signed-off-by: Mark Brown <broonie@linaro.org>
* ASoC: samsung: Use devm_snd_soc_register_platformTushar Behera2014-05-221-8/+1Star
| | | | | | | | | | Replaced snd_soc_register_platform with devm_snd_soc_register_platform in samsung_asoc_dma_platform_register(). This makes the function samsung_asoc_dma_platform_unregister() redundant. This is removed and all its users are updated. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* ASoC: samsung-idma: avoid 64-bit divisionArnd Bergmann2014-05-011-1/+1
| | | | | | | | | | | dma_addr_t may be 64 bit wide, which causes a build failure when doing a division on it. Here it is safe to cast to an u32 type, which avoids the problem. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Xia Kaixu <kaixu.xia@linaro.org> Tested-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Mark Brown <broonie@linaro.org>
* ASoC: samsung: Don't set unused struct snd_pcm_hardware fieldsLars-Peter Clausen2013-12-301-8/+0Star
| | | | | | | | | | | The ASoC core assumes that the PCM component of the ASoC card transparently moves data around and does not impose any restrictions on the memory layout or the transfer speed. It ignores all fields from the snd_pcm_hardware struct for the PCM driver that are related to this. Setting these fields in the PCM driver might suggest otherwise though, so rather not set them. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>
* DMA-API: sound: fix dma mask handling in a lot of driversRussell King2013-10-311-7/+4Star
| | | | | | | | | | | | | | | | | | | | | | | | | | 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/+0Star
| | | | | | 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 Pemberton2012-12-091-3/+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 Brown2012-01-091-0/+1
| | | | Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: check for substream not channels_min in pcm enginesJoachim Eastwood2012-01-071-2/+1Star
| | | | | | | | | | | | | | | 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/+1Star
| | | | | | | 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 Gortmaker2011-11-011-0/+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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