From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751976AbcGOB0w (ORCPT ); Thu, 14 Jul 2016 21:26:52 -0400 Received: from szxga02-in.huawei.com ([119.145.14.65]:43630 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751279AbcGOB0u (ORCPT ); Thu, 14 Jul 2016 21:26:50 -0400 Subject: Re: [PATCH v12] mtd: spi-nor: add hisilicon spi-nor flash controller driver To: Brian Norris References: <1467100099-6172-1-git-send-email-xuejiancheng@hisilicon.com> <20160714011331.GE54628@google.com> CC: , , , , , , , , , , Binquan Peng From: Jiancheng Xue Message-ID: <57883BC5.7060600@hisilicon.com> Date: Fri, 15 Jul 2016 09:26:29 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:38.0) Gecko/20100101 Thunderbird/38.5.0 MIME-Version: 1.0 In-Reply-To: <20160714011331.GE54628@google.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.217.211] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A090206.57883BD4.0078,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2013-06-18 04:22:30, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: bb0f565f66116987dcf16350b5363746 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Brian, On 2016/7/14 9:13, Brian Norris wrote: > On Tue, Jun 28, 2016 at 03:48:19PM +0800, Jiancheng Xue wrote: >> Add hisilicon spi-nor flash controller driver >> >> Signed-off-by: Binquan Peng >> Signed-off-by: Jiancheng Xue >> Acked-by: Rob Herring >> Reviewed-by: Ezequiel Garcia >> Reviewed-by: Jagan Teki >> Reviewed-by: Cyrille Pitchen >> --- >> change log >> v12: >> 1)Made SPI_HISI_SFC depend on HAS_DMA to fix the kbuild test robot error. >> 2)Added "Reviewed-by Cyrille Pitchen " and >> "Reviewed-by: Jagan Teki " in the commit message. >> v11: >> Fixed issues pointed by Brian Norris and Cyrille Pitchen. >> 1)Changed hisi_spi_nor_read_reg()/write_reg() to configure registers >> without sniffing the opcodes. >> 2)Deleted hisi_spi_nor_erase() and used default implementation instead. >> 3)Changed hisi_spi_nor_dma_transfer() to return a integer type value >> instead of nothing. >> 4)Simplified hisi_spi_nor_read()/write() as Brian suggested. >> >> v10: >> Fixed issues pointed by Marek Vasut. >> 1)Droped the underscores in the argument names of some macros' definition. >> 2)Changed some varibles to correct type. >> 3)Rewrote hisi_spi_nor_read/write for readability. >> 4)Added new functions hisi_spi_nor_register/unregister_all >> 5)Changed to dynamically allocation for spi_nor embeded in hifmc_host. >> Fixed issues pointed by Brian Norris. >> 1)Replaced some headers with more accurate ones. >> v9: >> Fixed issues pointed by Jagan Teki. >> v8: >> Fixed issues pointed by Ezequiel Garcia and Brian Norris. >> Moved dts binding file to mtd directory. >> Changed the compatible string more specific. >> v7: >> Rebased to v4.5-rc3. >> Fixed issues pointed by Ezequiel Garcia. >> v6: >> Based on v4.5-rc2 >> Fixed issues pointed by Ezequiel Garcia. >> v5: >> Fixed a compile error. >> v4: >> Rebased to v4.5-rc1 >> v3: >> Added a compatible string "hisilicon,hi3519-sfc". >> v2: >> Fixed some compiling warings. >> .../bindings/mtd/hisilicon,fmc-spi-nor.txt | 24 + >> drivers/mtd/spi-nor/Kconfig | 7 + >> drivers/mtd/spi-nor/Makefile | 1 + >> drivers/mtd/spi-nor/hisi-sfc.c | 489 +++++++++++++++++++++ >> 4 files changed, 521 insertions(+) >> create mode 100644 Documentation/devicetree/bindings/mtd/hisilicon,fmc-spi-nor.txt >> create mode 100644 drivers/mtd/spi-nor/hisi-sfc.c > > Pushed to l2-mtd.git, with the following diff due to API changes. Please > review to be sure it looks OK to you. > The changes are OK to me. Thanks! > Also, please base changes on l2-mtd.git or linux-next.git in the future. > The l2-mtd.git can't be accessed through http protocol now. The git protocol is forbidden in our office. I will generate patch based on linux-next.git. Regards, Jiancheng > Regards, > Brian > > diff --git a/drivers/mtd/spi-nor/hisi-sfc.c b/drivers/mtd/spi-nor/hisi-sfc.c > index 44664c3fc5ff..20378b0d55e9 100644 > --- a/drivers/mtd/spi-nor/hisi-sfc.c > +++ b/drivers/mtd/spi-nor/hisi-sfc.c > @@ -269,8 +269,8 @@ static int hisi_spi_nor_dma_transfer(struct spi_nor *nor, loff_t start_off, > return wait_op_finish(host); > } > > -static int hisi_spi_nor_read(struct spi_nor *nor, loff_t from, size_t len, > - size_t *retlen, u_char *read_buf) > +static ssize_t hisi_spi_nor_read(struct spi_nor *nor, loff_t from, size_t len, > + u_char *read_buf) > { > struct hifmc_priv *priv = nor->priv; > struct hifmc_host *host = priv->host; > @@ -287,14 +287,13 @@ static int hisi_spi_nor_read(struct spi_nor *nor, loff_t from, size_t len, > return ret; > } > memcpy(read_buf + offset, host->buffer, trans); > - *retlen += trans; > } > > - return 0; > + return len; > } > > -static void hisi_spi_nor_write(struct spi_nor *nor, loff_t to, > - size_t len, size_t *retlen, const u_char *write_buf) > +static ssize_t hisi_spi_nor_write(struct spi_nor *nor, loff_t to, > + size_t len, const u_char *write_buf) > { > struct hifmc_priv *priv = nor->priv; > struct hifmc_host *host = priv->host; > @@ -309,10 +308,11 @@ static void hisi_spi_nor_write(struct spi_nor *nor, loff_t to, > to + offset, host->dma_buffer, trans, FMC_OP_WRITE); > if (ret) { > dev_warn(nor->dev, "DMA write timeout\n"); > - return; > + return ret; > } > - *retlen += len; > } > + > + return len; > } > > /** > > . >