From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexandre Belloni Subject: [PATCH 2/5] spi: dw: allow providing own set_cs callback Date: Tue, 17 Jul 2018 16:23:11 +0200 Message-ID: <20180717142314.32337-3-alexandre.belloni@bootlin.com> References: <20180717142314.32337-1-alexandre.belloni@bootlin.com> Return-path: In-Reply-To: <20180717142314.32337-1-alexandre.belloni@bootlin.com> Sender: linux-kernel-owner@vger.kernel.org To: Mark Brown , James Hogan Cc: Paul Burton , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, Thomas Petazzoni , Allan Nielsen , Alexandre Belloni List-Id: devicetree@vger.kernel.org Allow platform specific drivers to provide their own set_cs callback when the IP integration requires it. Signed-off-by: Alexandre Belloni --- drivers/spi/spi-dw.c | 3 +++ drivers/spi/spi-dw.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index a087464efdd7..f76e31faf694 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -507,6 +507,9 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws) master->dev.of_node = dev->of_node; master->flags = SPI_MASTER_GPIO_SS; + if (dws->set_cs) + master->set_cs = dws->set_cs; + /* Basic HW init */ spi_hw_init(dev, dws); diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 2cde2473b3e9..446013022849 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -112,6 +112,7 @@ struct dw_spi { u32 reg_io_width; /* DR I/O width in bytes */ u16 bus_num; u16 num_cs; /* supported slave numbers */ + void (*set_cs)(struct spi_device *spi, bool enable); /* Current message transfer state info */ size_t len; -- 2.18.0