On 2020/05/13 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > On Wed, May 13, 2020 at 08:52:39AM +0000, Robin Gong wrote: > > On 2020/05/13 16:48 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > > > On Wed, May 13, 2020 at 08:38:26AM +0000, Robin Gong wrote: > > > > On 2020/05/13 Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> wrote: > > > > > This patch is the one bisecting will end up with when somebody > > > > > uses an older SDMA firmware or the ROM scripts. It should have a > > > > > better description what happens and what should be done about it. > > > > Emm..That's true. Timeout will be caught in such case, hence, > > > > maybe we can > > > fall back it to pio always. > > > > > > With my patch applied sdma_load_context() will fail. I don't know > > > how exactly this hits into the SPI driver, but it won't be a timeout. > > Thanks for your quick test, assume you use ROM firmware, right? > > Yes. Would you please have a try with the attached patch which is based this patch set?
Attachment:
0014-spi-imx-fallback-to-PIO-if-dma-setup-failure.patch
Description: 0014-spi-imx-fallback-to-PIO-if-dma-setup-failure.patch
