From mboxrd@z Thu Jan 1 00:00:00 1970 From: Grant Likely Subject: Re: [PATCH 1/5] spi-topcliff-pch: add tx-memory clear after complete transmitting Date: Tue, 4 Oct 2011 10:03:15 -0600 Message-ID: <20111004160315.GA8970@ponder.secretlab.ca> References: <1315295914-6862-1-git-send-email-tomoya-linux@dsn.okisemi.com> <4E8ACEAE.3040400@dsn.lapis-semi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: spi-devel-general@lists.sourceforge.net, linux-kernel@vger.kernel.org, qi.wang@intel.com, yong.y.wang@intel.com, joel.clark@intel.com, kok.howg.ewe@intel.com, toshiharu-linux@dsn.okisemi.com To: Tomoya MORINAGA Return-path: Content-Disposition: inline In-Reply-To: <4E8ACEAE.3040400@dsn.lapis-semi.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-spi.vger.kernel.org On Tue, Oct 04, 2011 at 06:15:26PM +0900, Tomoya MORINAGA wrote: > Hi Grant, > > 1 month has passed. You look very busy, right ? > We've been long waiting for your accept. > Could you review these patch series ? > > Thanks in advance. Just looked at it now. I'm picking it up and I'll send the pull req to Linus right away g. > > (2011/09/06 16:58), Tomoya MORINAGA wrote: > > Currently, in case of reading date from SPI flash, > > command is sent twice. > > The cause is that tx-memory clear processing is missing . > > This patch adds the tx-momory clear processing. > > > > Signed-off-by: Tomoya MORINAGA > > --- > > drivers/spi/spi-topcliff-pch.c | 5 +++++ > > 1 files changed, 5 insertions(+), 0 deletions(-) > > > > diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c > > index 540c290..1b98b7e 100644 > > --- a/drivers/spi/spi-topcliff-pch.c > > +++ b/drivers/spi/spi-topcliff-pch.c > > @@ -839,6 +839,11 @@ static void pch_spi_start_transfer(struct pch_spi_data *data) > > > > dma_sync_sg_for_cpu(&data->master->dev, dma->sg_rx_p, dma->nent, > > DMA_FROM_DEVICE); > > + > > + dma_sync_sg_for_cpu(&data->master->dev, dma->sg_tx_p, dma->nent, > > + DMA_FROM_DEVICE); > > + memset(data->dma.tx_buf_virt, 0, PAGE_SIZE); > > + > > async_tx_ack(dma->desc_rx); > > async_tx_ack(dma->desc_tx); > > kfree(dma->sg_tx_p); > > > -- > tomoya > ROHM Co., Ltd.