Hello,
in order to be able to add DT support for the McBSP driver which is used on all OMAP platforms (OMAP1/2/3/4/5) I needed to make some cleanups to the stack: - Removing callbacks used by the driver for - clock re-parenting (code moved to sound driver) - FSR/CLKR mux configuration (from now on it need to be done at board level) This mux is board specific and depends on the wiring. - OMAP3 sidetone ICLK workaround has been reimplemented using the SYSCONFIG register's SIDLEMODE filed to prevent ICLK gating while ST is running. - Replaced the cpu_is_omap* checks with future proof check. - The FIFO was not enabled on OMAP2430 SoC
It has been tested on BeagleBoard (with legacy and DT boot).
The series changes McBSP related files mostly. It would be great if the whole series could go via audio tree (if the patches are OK and it is fine by Tony).
Regards, Peter --- Peter Ujfalusi (11): ARM/ASoC: omap-mcbsp: Move OMAP2+ clock parenting code to ASoC driver ARM: OMAP2+: McBSP: Do not create legacy devices when booting with DT data ARM: OMAP: mcbsp: Enable FIFO use for OMAP2430 ARM: OMAP: board-am3517evm: Configure McBSP1 CLKR/FSR signal source ASoC: am3517evm: Do not configure McBSP1 CLKR/FSR signal muxing ARM/ASoC: omap-mcbsp: Remove CLKR/FSR mux configuration code ASoC: omap-mcbsp: Sidetone: Use SIDLE bits in SYSCONFIG register to select noidle mode ARM: OMAP3: Remove callback for McBSP sidetone ICLK workaround ASoC: omap-mcbsp: Remove unused defines ASoC: omap-mcbsp: Remove cpu_is_omap* checks from the code ASoC: omap-mcbsp: Add device tree bindings
.../devicetree/bindings/sound/omap-mcbsp.txt | 45 ++++++ arch/arm/mach-omap2/board-am3517evm.c | 13 ++ arch/arm/mach-omap2/mcbsp.c | 152 +------------------- arch/arm/plat-omap/include/plat/mcbsp.h | 3 - sound/soc/omap/am3517evm.c | 20 +--- sound/soc/omap/mcbsp.c | 72 +++++----- sound/soc/omap/mcbsp.h | 4 +- sound/soc/omap/omap-mcbsp.c | 106 ++++++++++----- sound/soc/omap/omap-mcbsp.h | 20 --- 9 files changed, 177 insertions(+), 258 deletions(-) create mode 100644 Documentation/devicetree/bindings/sound/omap-mcbsp.txt