From mboxrd@z Thu Jan 1 00:00:00 1970 From: t.figa@samsung.com (Tomasz Figa) Date: Tue, 25 Jun 2013 17:44:06 +0200 Subject: [RFC PATCH v2 00/12] ARM: s3c64xx: Let amba-pl08x driver handle DMA In-Reply-To: <20130625153843.GF27646@sirena.org.uk> References: <1371933764-24875-1-git-send-email-tomasz.figa@gmail.com> <6520269.XdaOpEg0Ud@amdc1227> <20130625153843.GF27646@sirena.org.uk> Message-ID: <1486283.2pMLZtfT9J@amdc1227> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tuesday 25 of June 2013 16:38:43 Mark Brown wrote: > On Tue, Jun 25, 2013 at 01:22:20PM +0200, Tomasz Figa wrote: > > On Tuesday 25 of June 2013 11:28:18 Mark Brown wrote: > > > On my non-DT s3c64xx system I get this when trying to use SPI for the > > > > > first time: > > Could you clarify first time? Does it work on further retries? > > No, the system appears to lock up fairly solidly - I suspect poor error > handling in the SPI driver. > > > > [ 1.739385] s3c64xx-spi s3c6410-spi.0: Failed to get RX DMA > > > channel > > > [ 1.743437] spi_master spi0: failed to prepare transfer hardware > > > > > > though I haven't yet tried your clock patches (there were some > > > conficts > > > that I didn't get round to picking up yet). > > > > This shouldn't really matter, as long as the pl080 drivers probes > > correctly. > > Indeed, I was wondering if it was failing to probe due to not getting > its clocks though since that's another area you've been actively working > on. Let me check if I can get something with SPI interface that I would be able to connect to my board at home and do some testing. Best regards, Tomasz