Hi Alexander, Am Dienstag, 21. M?rz 2017, 18:13:47 CET schrieb Alexander Kochetkov: > This commit enable DMA-based transfers for SD/eMMC card adapters > and reduce number of interrupts produced by SD-card/eMMC-card > adapters. > > Sometimes interrupts from SD-card/eMMC-card adapters running in > PIO mode blocks execution of hrtimers and I2S DMA callbacks for > a long periods (100 ms or more). > > Signed-off-by: Alexander Kochetkov <al.kochet at gmail.com> I've applied a slightly different variant in [0] with your commit message and moved the dma properties to the mmc/emmc nodes in rk3xxx.dtsi - as the dma channels are the same on both rk3188 and rk3066. While at it, I've also added the sdio dma as there is no need to leave it out. Also when changing the devicetree, please do not append stuff at the bottom but instead sort new nodes (the &mmc &emmc in this case) and properties alphabetically. Thanks Heiko [0] https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git/commit/?id=94bbdd77247d8c16eed5f55dddcf1cbc38d06cc4
