[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20180717142314.32337-3-alexandre.belloni@bootlin.com>
Date: Tue, 17 Jul 2018 16:23:11 +0200
From: Alexandre Belloni <alexandre.belloni@...tlin.com>
To: Mark Brown <broonie@...nel.org>, James Hogan <jhogan@...nel.org>
Cc: Paul Burton <paul.burton@...s.com>, linux-spi@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-mips@...ux-mips.org,
Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
Allan Nielsen <allan.nielsen@...rosemi.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 2/5] spi: dw: allow providing own set_cs callback
Allow platform specific drivers to provide their own set_cs callback when
the IP integration requires it.
Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
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
Powered by blists - more mailing lists