forked from Minki/linux
5631f18763
This change converts the driver to use DAPM to control the power for the various blocks on the chip. As part of this change the existing controls "TX Playback Switch" (controlled power for the SPDIF TX block) and "AIF Playback Switch" (controlled power for the AIF block) are both removed, as they are now redundant since the power state of those blocks is controlled automatically by DAPM. There are several benefits of this change, the most important of which is this change adds support for powering down the SPDIF RX block. The RX block will automatically assume control of the PLL on the chip when it is receiving a signal, so leaving this enabled all the time as was currently done in the driver can be problematic. An incoming SPDIF signal that is not being used can completely destroy the clocking for an in use TX signal. But this change ensures that the RX block will only be powered when the user intends to be receiving data, thus avoiding this issue. Additional benefits include the chip being simpler to operate as the power no longer needs to be manually controlled between use-cases and a small power saving (although it is acknowledged that this is likely unimportant in the typical use-cases for this chip). Signed-off-by: Sapthagiri Baratam <sapthagiri.baratam@incubesol.com> Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org> |
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| .. | ||
| aoa | ||
| arm | ||
| atmel | ||
| core | ||
| drivers | ||
| firewire | ||
| i2c | ||
| isa | ||
| mips | ||
| oss | ||
| parisc | ||
| pci | ||
| pcmcia | ||
| ppc | ||
| sh | ||
| soc | ||
| sparc | ||
| spi | ||
| synth | ||
| usb | ||
| ac97_bus.c | ||
| Kconfig | ||
| last.c | ||
| Makefile | ||
| sound_core.c | ||
| sound_firmware.c | ||