RE: [PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-09-23 Thread Lu Jingchang-B35083
rnel.org > Subject: Re: [PATCH 3/3] dma: Add Freescale eDMA engine driver support > > On Tue, Sep 17, 2013 at 08:08:46AM +, Lu Jingchang-B35083 wrote: > > > > + case DMA_PAUSE: > > > > + if (fsl_chan->edesc) > > > > +

Re: [PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-09-22 Thread Vinod Koul
On Tue, Sep 17, 2013 at 08:08:46AM +, Lu Jingchang-B35083 wrote: > > > + case DMA_PAUSE: > > > + if (fsl_chan->edesc) > > > + fsl_edma_disable_request(fsl_chan); > > racy here too... > It only set the channel HW register, no list is handled, > is lock needed here? Thank

RE: [PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-09-17 Thread Lu Jingchang-B35083
r.kernel.org; Wang > Huan-B18965 > Subject: Re: [PATCH 3/3] dma: Add Freescale eDMA engine driver support > > + case DMA_PAUSE: > > + if (fsl_chan->edesc) > > + fsl_edma_disable_request(fsl_chan); > racy here too... It only set the channel HW re

RE: [PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-09-17 Thread Lu Jingchang-B35083
r.kernel.org; Wang > Huan-B18965 > Subject: Re: [PATCH 3/3] dma: Add Freescale eDMA engine driver support > > I need ACK from DT maintainers on the above parts Should I cc this to one of the DT maintainers? Thanks. > > > +static int fsl_edma_control(struct

Re: [PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-09-16 Thread Vinod Koul
On Thu, Sep 05, 2013 at 05:53:19PM +0800, Jingchang Lu wrote: > Add Freescale enhanced direct memory(eDMA) controller support. > The eDMA controller deploys DMAMUXs routing DMA request sources(slot) > to eDMA channels. > This module can be found on Vybrid and LS-1 SoCs. > > Signed-off-by: Alison W

[PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-09-05 Thread Jingchang Lu
Add Freescale enhanced direct memory(eDMA) controller support. The eDMA controller deploys DMAMUXs routing DMA request sources(slot) to eDMA channels. This module can be found on Vybrid and LS-1 SoCs. Signed-off-by: Alison Wang Signed-off-by: Jingchang Lu --- changes in v5: config slave_id whe

Re: [PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-08-04 Thread Shawn Guo
On Fri, Aug 02, 2013 at 03:55:48PM +0800, Jingchang Lu wrote: > Add Freescale enhanced direct memory(eDMA) controller support. > The eDMA controller deploys DMAMUXs routing DMA request sources(slot) > to eDMA channels. > This module can be found on Vybrid and LS-1 SoCs. > > Signed-off-by: Alison W

[PATCH 3/3] dma: Add Freescale eDMA engine driver support

2013-08-02 Thread Jingchang Lu
Add Freescale enhanced direct memory(eDMA) controller support. The eDMA controller deploys DMAMUXs routing DMA request sources(slot) to eDMA channels. This module can be found on Vybrid and LS-1 SoCs. Signed-off-by: Alison Wang Signed-off-by: Xiaochun Li Signed-off-by: Jingchang Lu --- .../dev