From mboxrd@z Thu Jan 1 00:00:00 1970 From: vinod.koul@intel.com (Vinod Koul) Date: Mon, 8 Jan 2018 16:25:15 +0530 Subject: [PATCH v2 2/4] dmaengine: xilinx_dma: properly configure the SG mode bit in the driver for cdma In-Reply-To: <1514961731-1916-3-git-send-email-appanad@xilinx.com> References: <1514961731-1916-1-git-send-email-appanad@xilinx.com> <1514961731-1916-3-git-send-email-appanad@xilinx.com> Message-ID: <20180108105515.GG18649@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Jan 03, 2018 at 12:12:09PM +0530, Kedareswara rao Appana wrote: > If the hardware is configured for Scatter Gather(SG) mode, > and hardware is idle, in the control register SG mode bit > must be set to a 0 then back to 1 by the software, to force > the CDMA SG engine to use a new value written to the CURDESC_PNTR > register, failure to do so could result errors from the dmaengine. Applied 2-4, thanks -- ~Vinod