From mboxrd@z Thu Jan 1 00:00:00 1970 From: lee.jones@linaro.org (Lee Jones) Date: Tue, 9 Apr 2013 20:07:16 +0100 Subject: [PATCH 3/8] dmaengine: ste_dma40: Actually write the runtime configuration to registers In-Reply-To: <201304092059.37739.arnd@arndb.de> References: <1365532783-27425-1-git-send-email-lee.jones@linaro.org> <1365532783-27425-3-git-send-email-lee.jones@linaro.org> <201304092059.37739.arnd@arndb.de> Message-ID: <20130409190716.GE25316@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, 09 Apr 2013, Arnd Bergmann wrote: > On Tuesday 09 April 2013, Lee Jones wrote: > > Someone has spent a fair amount of effort writing a runtime configuration > > changing algorithm for DMA clients. However, the config appears to never > > actually make it to hardware. In order for the configuration to take hold > > we need to issue a d40_config_write(), as this is the routine which writes > > it into the hardware's registers. > > > > Signed-off-by: Lee Jones > > So this makes the runtime_addr selection work I suppose, but the > runtime_direction still isn't used anywhere, correct? Yes, I have this on my TODO to speak with Linus, as he was the one who mainlined it. -- Lee Jones Linaro ST-Ericsson Landing Team Lead Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog