Hi,
The series addresses a long standing issue with McBSP2/3 regarding to hwmod setup. When booting with DT a warning is printed that mcbsp2/3 is using two hwmod. The root of the issue is the way how the hwmod data was constructed in the first place for OMAP3 McBSP2/3. After re-reading the TRM it is clear that the sidetone should not have it's own hwmod data as it is not a separate IP, it is part of the McBSP module. It can not affect PRCM either since it's SYSCONFIG register's AUTOIDLE bit is only sets the autoidle from the internal McBSP_iclk clock to the sidetone block of the same McBSP.
The first two patch will remove the omap2/3_sidetone hwmod and it's use from DT. The ASoC patch is clear the autoidle bit in McBSP sidetone as it is adviced in the TRM.
Mark: The ASoC patch can be safely merged via ASoC tree.
Regards, Peter --- Peter Ujfalusi (3): ARM: DTS: omap3: Remove mcbsp2/3_sidetone hwmod reference for McBSP2/3 ARM: OMAP3: hwmod data: Merge and remove the McBSP sidetone related data ASoC: omap-mcbsp: Enable/disable sidetone block auto clock gating for omap3
arch/arm/boot/dts/omap3.dtsi | 4 +- arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 120 ++++------------------------- sound/soc/omap/mcbsp.c | 8 ++ 3 files changed, 24 insertions(+), 108 deletions(-)