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[80.62.117.210]) by smtp.gmail.com with ESMTPSA id w23sm6746473edv.30.2018.10.09.23.38.43 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 09 Oct 2018 23:38:44 -0700 (PDT) From: Esben Haabendal To: Chuanhua Han Cc: Boris Brezillon , "broonie\@kernel.org" , "linux-spi\@vger.kernel.org" , "linux-kernel\@vger.kernel.org" Subject: Re: [PATCH 1/2] spi: spi-mem: Add the spi_set_xfer_bpw function References: <20180921070628.35153-1-chuanhua.han@nxp.com> <20180928084431.300b7bf9@bbrezillon> <20180928091833.15e95f7f@bbrezillon> <20181009120522.6b2bd15a@bbrezillon> <87tvlv2wo7.fsf@gmail.com> Date: Wed, 10 Oct 2018 08:38:42 +0200 In-Reply-To: (Chuanhua Han's message of "Wed, 10 Oct 2018 02:42:54 +0000") Message-ID: <87d0sii9vx.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Chuanhua Han writes: >> I am using XSPI mode on LS1021A, talking to a lot of different SPI devices. >> And they all work, and I believe everything is quite "normal". >> > Since I don't have the board of LS1021, I can't test it. I use other boards > with DSPI (such as LS1043, LS2088, etc.), > and I test sp-flash connected on DSPI. If XSPI mode is used at this time, data > cannot be transmitted normally. Please describe what happens in much more detailed terms that "cannot be transmitted normally". It is simply impossible to assist you when you report problems in such general terms. /Esben