Re: Applied "spi: davinci: enable DMA when channels are defined in DT" to the spi tree

On 08/03/2017 13:43, Mark Brown wrote: > On Wed, Mar 08, 2017 at 11:35:02AM +0100, Frode Isaksen wrote: > >> To avoid data corruption issues with UBIFS volume over SPI NOR, DMA should >> not be used for vmalloc'ed buffers. The 5'th patch in my series fixes that: > It

Re: Applied "spi: davinci: enable DMA when channels are defined in DT" to the spi tree

On 08/03/2017 13:43, Mark Brown wrote: > On Wed, Mar 08, 2017 at 11:35:02AM +0100, Frode Isaksen wrote: > >> To avoid data corruption issues with UBIFS volume over SPI NOR, DMA should >> not be used for vmalloc'ed buffers. The 5'th patch in my series fixes that: > It

Re: Applied "spi: davinci: enable DMA when channels are defined in DT" to the spi tree

SPI_IO_TYPE_INTR mode to transfer data even if DMA channels are > defined in the DT. > > This commit changes the behaviour to select the SPI_IO_TYPE_DMA mode > if DMA channels are defined in the DT and will keep SPI_IO_TYPE_INTR > if the channels are not defined in it. > > Signe

Re: Applied "spi: davinci: enable DMA when channels are defined in DT" to the spi tree

fer data even if DMA channels are > defined in the DT. > > This commit changes the behaviour to select the SPI_IO_TYPE_DMA mode > if DMA channels are defined in the DT and will keep SPI_IO_TYPE_INTR > if the channels are not defined in it. > > Signed-off-by: Fabien Parent &g

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 02/03/2017 16:25, Boris Brezillon wrote: > On Thu, 2 Mar 2017 16:03:17 +0100 > Frode Isaksen <fisak...@baylibre.com> wrote: > >> On 02/03/2017 15:29, Boris Brezillon wrote: >>> On Thu, 2 Mar 2017 19:24:43 +0530 >>> Vignesh R <vigne...@ti.com> wrote

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 02/03/2017 16:25, Boris Brezillon wrote: > On Thu, 2 Mar 2017 16:03:17 +0100 > Frode Isaksen wrote: > >> On 02/03/2017 15:29, Boris Brezillon wrote: >>> On Thu, 2 Mar 2017 19:24:43 +0530 >>> Vignesh R wrote: >>> >>>>>>>>

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 02/03/2017 15:29, Boris Brezillon wrote: > On Thu, 2 Mar 2017 19:24:43 +0530 > Vignesh R wrote: > >> > Not really, I am debugging another issue with UBIFS on DRA74 EVM (ARM > cortex-a15) wherein pages allocated by vmalloc are in highmem region > that are

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 02/03/2017 15:29, Boris Brezillon wrote: > On Thu, 2 Mar 2017 19:24:43 +0530 > Vignesh R wrote: > >> > Not really, I am debugging another issue with UBIFS on DRA74 EVM (ARM > cortex-a15) wherein pages allocated by vmalloc are in highmem region > that are not addressable

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 01/03/2017 17:55, Boris Brezillon wrote: > On Wed, 1 Mar 2017 17:16:30 +0530 > Vignesh R wrote: > >> On Wednesday 01 March 2017 04:13 PM, Cyrille Pitchen wrote: >>> Le 01/03/2017 à 05:54, Vignesh R a écrit : On Wednesday 01 March 2017 03:11 AM, Richard Weinberger

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 01/03/2017 17:55, Boris Brezillon wrote: > On Wed, 1 Mar 2017 17:16:30 +0530 > Vignesh R wrote: > >> On Wednesday 01 March 2017 04:13 PM, Cyrille Pitchen wrote: >>> Le 01/03/2017 à 05:54, Vignesh R a écrit : On Wednesday 01 March 2017 03:11 AM, Richard Weinberger wrote: >

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 01/03/2017 11:43, Cyrille Pitchen wrote: > Le 01/03/2017 à 05:54, Vignesh R a écrit : >> >> On Wednesday 01 March 2017 03:11 AM, Richard Weinberger wrote: >>> Vignesh, >>> >>> Am 27.02.2017 um 13:08 schrieb Vignesh R: Many SPI controller drivers use DMA to read/write from m25p80

Re: [RFC PATCH 2/2] mtd: devices: m25p80: Enable spi-nor bounce buffer support

On 01/03/2017 11:43, Cyrille Pitchen wrote: > Le 01/03/2017 à 05:54, Vignesh R a écrit : >> >> On Wednesday 01 March 2017 03:11 AM, Richard Weinberger wrote: >>> Vignesh, >>> >>> Am 27.02.2017 um 13:08 schrieb Vignesh R: Many SPI controller drivers use DMA to read/write from m25p80

Re: [RFC PATCH 1/2] mtd: spi-nor: Introduce bounce buffer to handle vmalloc'd buffers

On 01/03/2017 11:18, Boris Brezillon wrote: > On Wed, 1 Mar 2017 11:09:57 +0100 > Cyrille Pitchen wrote: > >> Le 28/02/2017 à 22:39, Richard Weinberger a écrit : >>> Vignesh, >>> >>> Am 27.02.2017 um 13:08 schrieb Vignesh R: Filesystems like UBIFS may pass

Re: [RFC PATCH 1/2] mtd: spi-nor: Introduce bounce buffer to handle vmalloc'd buffers

On 01/03/2017 11:18, Boris Brezillon wrote: > On Wed, 1 Mar 2017 11:09:57 +0100 > Cyrille Pitchen wrote: > >> Le 28/02/2017 à 22:39, Richard Weinberger a écrit : >>> Vignesh, >>> >>> Am 27.02.2017 um 13:08 schrieb Vignesh R: Filesystems like UBIFS may pass vmalloc'd buffers to SPI NOR

Re: [RFC PATCH 0/2] mtd: spi-nor: Handle vmalloc'd buffers

On 27/02/2017 13:08, Vignesh R wrote: > This series implements bounce buffer support to handle vmalloc'd buffers > in case of drivers use DMA, similar to what is done in MTD NAND > framework. > > I have tested this on two platform: > DRA74 SoC (cortex a15 @1GHz) with s25fl256s1 QSPI (SPI bus

Re: [RFC PATCH 0/2] mtd: spi-nor: Handle vmalloc'd buffers

On 27/02/2017 13:08, Vignesh R wrote: > This series implements bounce buffer support to handle vmalloc'd buffers > in case of drivers use DMA, similar to what is done in MTD NAND > framework. > > I have tested this on two platform: > DRA74 SoC (cortex a15 @1GHz) with s25fl256s1 QSPI (SPI bus