Message ID | 20210401193133.18129-15-p.yadav@ti.com |
---|---|
State | Superseded |
Delegated to: | Jagannadha Sutradharudu Teki |
Headers | show
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Thu, 1 Apr 2021 14:32:22 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2176.2 via Frontend Transport; Thu, 1 Apr 2021 14:32:22 -0500 Received: from pratyush-OptiPlex-790.dhcp.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 131JVYFN107531; Thu, 1 Apr 2021 14:32:19 -0500 From: Pratyush Yadav <p.yadav@ti.com> To: Chris Packham <chris.packham@alliedtelesis.co.nz>, Jagan Teki <jagan@amarulasolutions.com>, Vignesh R <vigneshr@ti.com>, Ryder Lee <ryder.lee@mediatek.com>, Weijie Gao <weijie.gao@mediatek.com>, Chunfeng Yun <chunfeng.yun@mediatek.com>, GSS_MTK_Uboot_upstream <GSS_MTK_Uboot_upstream@mediatek.com>, <u-boot@lists.denx.de> CC: Pratyush Yadav <p.yadav@ti.com>, Takahiro Kuwano <Takahiro.Kuwano@infineon.com> Subject: [PATCH v8 14/28] mtd: spi-nor-core: Do not set data direction when there is no data Date: Fri, 2 Apr 2021 01:01:19 +0530 Message-ID: <20210401193133.18129-15-p.yadav@ti.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210401193133.18129-1-p.yadav@ti.com> References: <20210401193133.18129-1-p.yadav@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 Precedence: list List-Id: U-Boot discussion <u-boot.lists.denx.de> List-Unsubscribe: <https://lists.denx.de/options/u-boot>, <mailto:u-boot-request@lists.denx.de?subject=unsubscribe> List-Archive: <https://lists.denx.de/pipermail/u-boot/> List-Post: <mailto:u-boot@lists.denx.de> List-Help: <mailto:u-boot-request@lists.denx.de?subject=help> List-Subscribe: <https://lists.denx.de/listinfo/u-boot>, <mailto:u-boot-request@lists.denx.de?subject=subscribe> Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" <u-boot-bounces@lists.denx.de> X-Virus-Scanned: clamav-milter 0.102.4 at phobos.denx.de X-Virus-Status: Clean |
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mtd: spi-nor-core: add xSPI Octal DTR support
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diff --git a/drivers/mtd/spi/spi-nor-core.c b/drivers/mtd/spi/spi-nor-core.c index b2a25b0099..1816319ad0 100644 --- a/drivers/mtd/spi/spi-nor-core.c +++ b/drivers/mtd/spi/spi-nor-core.c @@ -209,6 +209,9 @@ static int spi_nor_write_reg(struct spi_nor *nor, u8 opcode, u8 *buf, int len) SPI_MEM_OP_NO_DUMMY, SPI_MEM_OP_DATA_OUT(len, NULL, 1)); + if (len == 0) + op.data.dir = SPI_MEM_NO_DATA; + return spi_nor_read_write_reg(nor, &op, buf); }
Even when spi_nor_write_reg() has no data to write, like when executing a write enable operation, it sets the data direction to SPI_MEM_DATA_OUT. This trips up spi_mem_check_buswidth() because it expects a data phase when there is none. Make sure the data direction is set to SPI_MEM_NO_DATA when there is no data to write. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> --- drivers/mtd/spi/spi-nor-core.c | 3 +++ 1 file changed, 3 insertions(+)