Hi Geert > I have pushed renesas-drivers-2016-04-12-v4.6-rc3 to > https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git > > This tree is meant to ease development of platform support and drivers > for Renesas ARM SoCs. It is created by merging (a) the for-next branches > of various subsystem trees and (b) branches with driver code submitted > or planned for submission to maintainers into the development branch of > Simon Horman's renesas.git tree. > > Today's version is based on renesas-devel-20160411-v4.6-rc3. I noticed that I can't use Sound DMA on renesas-drivers-2016-04-12-v4.6-rc3 Sound driver will fallback to PIO mode if it can't use DMA, and it indicates message ----------------- ... [ 0.934996] ak4613-codec 2-0010: No cache used with register defaults set! => [ 0.945223] rcar_sound ec500000.sound: can't get dma channel => [ 0.950911] rcar_sound ec500000.sound: ssi[0] fallback to PIO mode => [ 0.957120] rcar_sound ec500000.sound: can't get dma channel => [ 0.962802] rcar_sound ec500000.sound: ssi[1] fallback to PIO mode [ 0.969000] rcar_sound ec500000.sound: probed ... ----------------- This patch seems breaks Sound DMA, is this known issue ? ---------------- commit 7021fc6e9446fd7397dbf1782cbf8d5a5c8655f6 Author: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> Date: Mon Aug 10 13:47:07 2015 +0200 arm64: dts: r8a7795: Use SYSC "always-on" PM Domain Hook up all devices that are part of the CPG/MSSR Clock Domain to the SYSC "always-on" PM Domain, for a more consistent device-power-area description in DT. Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> --- v4: - New, extracted from "[PATCH v3] arm64: dts: r8a7795: Add SYSC PM Domains", - Use "<&sysc R8A7795_PD_ALWAYS_ON>" for recently added can0, can1, pciec0, and pciec1 device nodes, ----------------
