On Wed, Nov 21, 2018 at 01:02:57PM +0100, Simon Horman wrote: > On Sun, Oct 21, 2018 at 06:35:26AM +0900, Yoshihiro Kaneko wrote: > > From: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx> > > > > This patch enables I2C DMA. > > > > NOTE: I2C7 DMA is not supported by R-Car Gen3 Hardware User's Manual > > Rev.0.80E. > > > > Signed-off-by: Takeshi Kihara <takeshi.kihara.df@xxxxxxxxxxx> > > Signed-off-by: Yoshihiro Kaneko <ykaneko0929@xxxxxxxxx> > > Base patch stack: > * renesas-devel-20181121-v4.20-rc3 > + "iommu/ipmmu-vmsa: Hook up r8a77990 DT matching code" > + "pinctrl: sh-pfc: r8a77990: Add Audio SSI pins, groups and functions" > + "pinctrl: sh-pfc: r8a77990: Add Audio clock pins, groups and functions" > > Config: renesas_defconfig + IPMMU_VMSA > > Should we enable IPMMU_VMSA in arm64 defconfig and renesas_defconfig? > > Test with base patch stack: > # grep dma /proc/interrupts | grep -v "0 0" > (no output) > # amixer set "DVC Out" 2% > # play xyz.wav > # grep dma /proc/interrupts | grep -v "0 0" > (no output) > > Test with base patch stack + this patch applied: > # grep dma /proc/interrupts | grep -v "0 0" > (no output) > # amixer set "DVC Out" 2% > # play xyz.wav > # grep dma /proc/interrupts | grep -v "0 0" > 109: 512 0 GIC-0 352 Level ec700000.dma-controller:0 > > > Tested-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> > Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx> > > I plan to apply this patch for v4.21. Done.
