From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tomer Maimon Subject: [RFC v1 2/3] spi: spi-mem: add callback function to spi-mem device Date: Mon, 29 Jul 2019 17:25:03 +0300 Message-ID: <20190729142504.188336-3-tmaimon77@gmail.com> References: <20190729142504.188336-1-tmaimon77@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, Tomer Maimon , linux-spi@vger.kernel.org To: broonie@kernel.org, dwmw2@infradead.org, computersforpeace@gmail.com, marek.vasut@gmail.com, miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, bbrezillon@kernel.org, yogeshnarayan.gaur@nxp.com, tudor.ambarus@microchip.com, gregkh@linuxfoundation.org, frieder.schrempf@exceet.de, tglx@linutronix.de Return-path: In-Reply-To: <20190729142504.188336-1-tmaimon77@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+gldm-linux-mtd-36=gmane.org@lists.infradead.org List-Id: linux-spi.vger.kernel.org Add callback function support to the spi-mem device for passing an argument from the spi-mem layer to the spi layer. Signed-off-by: Tomer Maimon --- include/linux/spi/spi-mem.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h index 5f7d20bd2b09..b9841a9030be 100644 --- a/include/linux/spi/spi-mem.h +++ b/include/linux/spi/spi-mem.h @@ -13,6 +13,8 @@ #include +typedef size_t (*spi_mem_callback)(void *spi_mem_param); + #define SPI_MEM_OP_CMD(__opcode, __buswidth) \ { \ .buswidth = __buswidth, \ @@ -172,6 +174,9 @@ struct spi_mem_dirmap_desc { * @spi: the underlying SPI device * @drvpriv: spi_mem_driver private data * @name: name of the SPI memory device + * @callback: routine for passing an argument from the + * spi-mem layer to the spi layer. + * @callback_param: general parameter to pass to the callback routine * * Extra information that describe the SPI memory device and may be needed by * the controller to properly handle this device should be placed here. @@ -183,6 +188,8 @@ struct spi_mem { struct spi_device *spi; void *drvpriv; const char *name; + spi_mem_callback callback; + void *callback_param; }; /** -- 2.18.0 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/