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Mon, 15 Oct 2018 12:14:09 +0000 Received: from VI1PR04MB1038.eurprd04.prod.outlook.com ([fe80::d887:3c96:479a:4123]) by VI1PR04MB1038.eurprd04.prod.outlook.com ([fe80::d887:3c96:479a:4123%3]) with mapi id 15.20.1228.027; Mon, 15 Oct 2018 12:14:09 +0000 From: Yogesh Narayan Gaur To: "linux-mtd@lists.infradead.org" , "boris.brezillon@bootlin.com" , "marek.vasut@gmail.com" , "vigneshr@ti.com" , "linux-spi@vger.kernel.org" , "devicetree@vger.kernel.org" CC: "robh@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "computersforpeace@gmail.com" , "frieder.schrempf@exceet.de" , "linux-kernel@vger.kernel.org" , Yogesh Narayan Gaur Subject: [PATCH v2 2/7] spi: spi-mem: add support for octal I/O data transfer Thread-Topic: [PATCH v2 2/7] spi: spi-mem: add support for octal I/O data transfer Thread-Index: AQHUZICTa6RwRe/NVkSs0dOf/wyRDQ== Date: Mon, 15 Oct 2018 12:14:09 +0000 Message-ID: <1539605534-22302-3-git-send-email-yogeshnarayan.gaur@nxp.com> References: <1539605534-22302-1-git-send-email-yogeshnarayan.gaur@nxp.com> In-Reply-To: <1539605534-22302-1-git-send-email-yogeshnarayan.gaur@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: SG2PR02CA0054.apcprd02.prod.outlook.com (2603:1096:4:54::18) To VI1PR04MB1038.eurprd04.prod.outlook.com (2a01:111:e400:5092::16) authentication-results: spf=none (sender IP is ) smtp.mailfrom=yogeshnarayan.gaur@nxp.com; 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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: MyTOdpL4AXZtLNLhxuVnTN84t1/CLm3NQLsF7MTFbUPwaROi3lnBxV1SDMn7MrTSE2RAdL9CrsTtOvdbd2VbKfCT3VhgOk0LJB5lR5DThtaQwal/OU0A+qrHi6zmgNmbHrQTXmtUKXCPyMLB5tutpfZbdSFICqRoVuRGwB8LBGRVz/i86NJz/WVVu2Rf5C0tZxZbV4vR16YqT0N6fgFLFphyJFLHk7vK3r9LlKyXMr7FvHjymAcI9D9kbuf22GG/FltgWQtmsmtTxj2BEPWVj/Z03thzi2Ff2FnsnU7jDGLDV5mvc0dLB9e91CfAvqcZ1FKCXw+NjmRGE/C+GxuS2xG8omxPr6T8PggRWxWM8d0= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5c64a2e9-c642-48fa-15c8-08d63297b5b6 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Oct 2018 12:14:09.6018 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR04MB4240 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add support for octal I/O data transfer in spi-mem framework. Signed-off-by: Yogesh Gaur --- Changes for v2: Patch added in v2 version. drivers/spi/spi-mem.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index c6bdea7..6fa95f8 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -12,7 +12,7 @@ =20 #include "internals.h" =20 -#define SPI_MEM_MAX_BUSWIDTH 4 +#define SPI_MEM_MAX_BUSWIDTH 8 =20 /** * spi_controller_dma_map_mem_op_data() - DMA-map the buffer attached to a @@ -121,6 +121,13 @@ static int spi_check_buswidth_req(struct spi_mem *mem,= u8 buswidth, bool tx) =20 break; =20 + case 8: + if ((tx && (mode & SPI_TX_OCTAL)) || + (!tx && (mode & SPI_RX_OCTAL))) + return 0; + + break; + default: break; } --=20 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yogesh Narayan Gaur Subject: [PATCH v2 2/7] spi: spi-mem: add support for octal I/O data transfer Date: Mon, 15 Oct 2018 12:14:09 +0000 Message-ID: <1539605534-22302-3-git-send-email-yogeshnarayan.gaur@nxp.com> References: <1539605534-22302-1-git-send-email-yogeshnarayan.gaur@nxp.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <1539605534-22302-1-git-send-email-yogeshnarayan.gaur@nxp.com> Content-Language: en-US Sender: linux-kernel-owner@vger.kernel.org To: "linux-mtd@lists.infradead.org" , "boris.brezillon@bootlin.com" , "marek.vasut@gmail.com" , "vigneshr@ti.com" , "linux-spi@vger.kernel.org" , "devicetree@vger.kernel.org" Cc: "robh@kernel.org" , "mark.rutland@arm.com" , "shawnguo@kernel.org" , "linux-arm-kernel@lists.infradead.org" , "computersforpeace@gmail.com" , "frieder.schrempf@exceet.de" , "linux-kernel@vger.kernel.org" , Yogesh Narayan Gaur List-Id: devicetree@vger.kernel.org Add support for octal I/O data transfer in spi-mem framework. Signed-off-by: Yogesh Gaur --- Changes for v2: Patch added in v2 version. drivers/spi/spi-mem.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index c6bdea7..6fa95f8 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -12,7 +12,7 @@ =20 #include "internals.h" =20 -#define SPI_MEM_MAX_BUSWIDTH 4 +#define SPI_MEM_MAX_BUSWIDTH 8 =20 /** * spi_controller_dma_map_mem_op_data() - DMA-map the buffer attached to a @@ -121,6 +121,13 @@ static int spi_check_buswidth_req(struct spi_mem *mem,= u8 buswidth, bool tx) =20 break; =20 + case 8: + if ((tx && (mode & SPI_TX_OCTAL)) || + (!tx && (mode & SPI_RX_OCTAL))) + return 0; + + break; + default: break; } --=20 2.7.4 From mboxrd@z Thu Jan 1 00:00:00 1970 From: yogeshnarayan.gaur@nxp.com (Yogesh Narayan Gaur) Date: Mon, 15 Oct 2018 12:14:09 +0000 Subject: [PATCH v2 2/7] spi: spi-mem: add support for octal I/O data transfer In-Reply-To: <1539605534-22302-1-git-send-email-yogeshnarayan.gaur@nxp.com> References: <1539605534-22302-1-git-send-email-yogeshnarayan.gaur@nxp.com> Message-ID: <1539605534-22302-3-git-send-email-yogeshnarayan.gaur@nxp.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add support for octal I/O data transfer in spi-mem framework. Signed-off-by: Yogesh Gaur --- Changes for v2: Patch added in v2 version. drivers/spi/spi-mem.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index c6bdea7..6fa95f8 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -12,7 +12,7 @@ #include "internals.h" -#define SPI_MEM_MAX_BUSWIDTH 4 +#define SPI_MEM_MAX_BUSWIDTH 8 /** * spi_controller_dma_map_mem_op_data() - DMA-map the buffer attached to a @@ -121,6 +121,13 @@ static int spi_check_buswidth_req(struct spi_mem *mem, u8 buswidth, bool tx) break; + case 8: + if ((tx && (mode & SPI_TX_OCTAL)) || + (!tx && (mode & SPI_RX_OCTAL))) + return 0; + + break; + default: break; } -- 2.7.4