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path: root/sound/soc/tegra/tegra_asoc_utils.c
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* ASoC: tegra: support new register layouts in Tegra124Stephen Warren2013-10-141-0/+2
| | | | | | | | | | | | | | | | Tegra124 introduces some small changes to the layout of some registers. Modify the affected drivers to program those registers appropriately based on which SoC they're running on. Tegra124 also introduced some new modules on the AHUB configlink register bus. These will require new entries in configlink_clocks[] in the AHUB driver. However, supporting that change likely relies on switching Tegra to the common reset framework, so I'll defer that change for now. Based-on-work-by: Arun Shamanna Lakshmi <aruns@nvidia.com> Based-on-work-by: Songhee Baek <sbaek@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@linaro.org>
* ASoC: tegra: always use clk_get() in utility codeStephen Warren2013-05-141-18/+5
| | | | | | | | | Now that all of the Tegra device trees have been updated to represent the required audio clocks, remove the compatibility code from the Tegra ASoC utility code, and always use clk_get() rather than clk_get_sys(). Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: add Tegra114 support to tegra_asoc_utils.cStephen Warren2013-03-251-6/+24
| | | | | | | | | | | | | | | Tegra114 requires different PLL rates. Modify the code to know about this. On Tegra114 only for now, use regular clk_get() rather than clk_get_sys() to retrieve clocks. This assumes that the clocks will be represented in device tree. We can assure that from the start of any Tegra114 audio support. For older chips, I'll add the required clocks properties to the device trees this kernel cycle, and switch this code to only support the "new_clocks" path next cycle. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: assume CONFIG_OF in tegra_asoc_utils_initStephen Warren2013-03-041-4/+0
| | | | | | | | Tegra only supports, and always enables, device tree. Remove all runtime checks for DT support from the driver. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: add function to set ac97 rateLucas Stach2012-12-241-0/+53
| | | | | | | | | AC97 uses a fixed rate, unrelated to the sample rate. Add a function to make the setup more trivial. Signed-off-by: Lucas Stach <dev@lynxeye.de> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: add clk_prepare/clk_unpreparePrashant Gaikwad2012-06-121-6/+6
| | | | | | | | Use clk_prepare/clk_unprepare as required by the generic clk framework. Signed-off-by: Prashant Gaikwad <pgaikwad@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: utils: Don't use of_have_populated_dt()Stephen Warren2012-04-101-3/+5
| | | | | | | | | Recent list discussions concluded that drivers should not be calling of_have_populated_dt(), and hence of_have_populated_dt() should not be exported. Use a different mechanism to detect DT vs. non-DT boot. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: utils: add support for Tegra30 devicesStephen Warren2012-04-061-5/+24
| | | | | | | | | Tegra30 has some additional clocks that need to be manipulated, names some clocks differently, runs PLLs at different base rates, etc. The utility code needs to handle this. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: set a sensible initial clock rateStephen Warren2012-04-061-0/+6
| | | | | | | | | Initialize the audio clock tree appropriately for some reasonable rate. This makes sure the PLLs etc. are actually programmed to something reasonable when the audio driver is loaded. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.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: Tegra: Don't return mclk_changed from utils_set_rateStephen Warren2011-04-201-4/+5
| | | | | | | | | | | | | Only the clock programming code needs to know whether the clocks changed, and that is encapsulated within tegra_asoc_utils_set_rate(). The machine driver's call to snd_soc_dai_set_sysclk(codec_dai, ...) is safe irrespective of whether the clocks changed. (Applying Mark's TrimSlice review comments to the existing driver) Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Tegra: Move utilities to separate moduleStephen Warren2011-02-251-0/+6
| | | | | | | | | | | | The utilities will be required by every machine driver. Including the utility object directly into every machine driver causes a build failure if the modules are actually built into the kernel, since each will define the symbols exported by the utility file. Solve this by moving the utility object into a separate module. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: Tegra: utils: Don't use global variablesStephen Warren2011-01-311-47/+44
| | | | | | | | | | | | Instead, have the machine driver provide storage for the utility data somehow. For Harmony in particular, store this within struct tegra_harmony, itself referenced by snd_soc_card's drvdata. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: s/IS_ERR_OR_NULL/IS_ERR/ for clk_get_sysStephen Warren2011-01-131-11/+9
| | | | | | | | | | | | | | | | | A recent discussion on linux-arm-kernel noted that the value returned by clk_get_sys is an opaque token, and not strictly a pointer; it is meaningful only to the clock API, clients should not dereference the value, and the clock API must accept any non-IS_ERR value it returned. Hence, only IS_ERR is appropriate to interpret the result, not IS_ERR_OR_NULL. I checked that clk_get_sys in both ASoC's for-next and Tegra's for-next do behave as described; NULL is not returned in the case of error. Signed-off-by: Stephen Warren <swarren@nvidia.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
* ASoC: tegra: Machine utility codeStephen Warren2011-01-101-0/+154
Many portions of Tegra ASoC machine drivers will be similar or identical. To avoid cut/paste, this file will act as a repository for all that common code. For now, it solely includes code to reprogram the audio PLL for 44.1KHz- vs. 48KHz-based sample rates. Signed-Off-By: Stephen Warren <swarren@nvidia.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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