> -----Original Message----- > From: Sean Anderson <sean.anderson@xxxxxxxx> > Sent: Monday, September 19, 2022 5:24 PM > To: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>; Pengutronix Kernel Team > <kernel@xxxxxxxxxxxxxx>; linux-i2c@xxxxxxxxxxxxxxx; linux-arm-kernel > <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>; Vinod Koul <vkoul@xxxxxxxxxx>; > dmaengine@xxxxxxxxxxxxxxx > Cc: Sumit Semwal <sumit.semwal@xxxxxxxxxx>; Christian König > <christian.koenig@xxxxxxx>; Linux Kernel Mailing List <linux- > kernel@xxxxxxxxxxxxxxx>; linux-media@xxxxxxxxxxxxxxx; dri- > devel@xxxxxxxxxxxxxxxxxxxxx; linaro-mm-sig@xxxxxxxxxxxxxxxx; Joy Zou > <joy.zou@xxxxxxx>; Peng Ma <peng.ma@xxxxxxx>; Robin Gong > <yibin.gong@xxxxxxx>; Shawn Guo <shawnguo@xxxxxxxxxx>; Leo Li > <leoyang.li@xxxxxxx> > Subject: [BUG] ls1046a: eDMA does not transfer data from I2C > > Hi all, > > I discovered a bug in either imx_i2c or fsl-edma on the LS1046A where no > data is read in i2c_imx_dma_read except for the last two bytes (which are > not read using DMA). This is perhaps best illustrated with the following > example: What is the kernel tree/tag that you are testing with? Regards, Leo
