Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1606689

Re: [PATCH] ARM: dts: rockchip: setup DMA-channels for mmc0 and emmc for rk3188

Show all headers | View raw

Hi Alexander,

Am Dienstag, 21. März 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@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

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH] ARM: dts: rockchip: setup DMA-channels for mmc0 and emmc for rk3188 Alexander Kochetkov <al.kochet@gmail.com> - 2017-03-21 16:30 +0100
  Re: [PATCH] ARM: dts: rockchip: setup DMA-channels for mmc0 and emmc for rk3188 Heiko Stuebner <heiko@sntech.de> - 2017-03-22 17:00 +0100
    Re: [PATCH] ARM: dts: rockchip: setup DMA-channels for mmc0 and emmc for rk3188 Alexander Kochetkov <al.kochet@gmail.com> - 2017-03-22 17:30 +0100
      Re: [PATCH] ARM: dts: rockchip: setup DMA-channels for mmc0 and emmc for rk3188 Heiko Stuebner <heiko@sntech.de> - 2017-03-22 17:40 +0100

csiph-web