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authorLinus Walleij <linus.walleij@linaro.org>2013-04-11 14:59:47 +0200
committerLinus Walleij <linus.walleij@linaro.org>2013-05-31 11:25:51 +0200
commit8c58d891576c726bb8217842e955827ba8bb405a (patch)
treeac23e6dd91afcf2c39ccafaba705e380b5bf48de /drivers/i2c/busses/i2c-stu300.c
parentARM: u300: basic device tree support (diff)
downloadlinux-8c58d891576c726bb8217842e955827ba8bb405a.tar.xz
linux-8c58d891576c726bb8217842e955827ba8bb405a.zip
i2c: stu300: device tree support
This adds device tree support for the ST DDC I2C driver known as "stu300" in the kernel tree. Reviewed-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/i2c/busses/i2c-stu300.c')
-rw-r--r--drivers/i2c/busses/i2c-stu300.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/i2c/busses/i2c-stu300.c b/drivers/i2c/busses/i2c-stu300.c
index 0a6f941133f6..1beaa05a3d2c 100644
--- a/drivers/i2c/busses/i2c-stu300.c
+++ b/drivers/i2c/busses/i2c-stu300.c
@@ -17,6 +17,7 @@
#include <linux/clk.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/of_i2c.h>
/* the name of this kernel module */
#define NAME "stu300"
@@ -923,6 +924,7 @@ stu300_probe(struct platform_device *pdev)
adap->nr = bus_nr;
adap->algo = &stu300_algo;
adap->dev.parent = &pdev->dev;
+ adap->dev.of_node = pdev->dev.of_node;
i2c_set_adapdata(adap, dev);
/* i2c device drivers may be active on return from add_adapter() */
@@ -934,6 +936,10 @@ stu300_probe(struct platform_device *pdev)
}
platform_set_drvdata(pdev, dev);
+ dev_info(&pdev->dev, "ST DDC I2C @ %p, irq %d\n",
+ dev->virtbase, dev->irq);
+ of_i2c_register_devices(adap);
+
return 0;
}
@@ -978,11 +984,17 @@ stu300_remove(struct platform_device *pdev)
return 0;
}
+static const struct of_device_id stu300_dt_match[] = {
+ { .compatible = "st,ddci2c" },
+ {},
+};
+
static struct platform_driver stu300_i2c_driver = {
.driver = {
.name = NAME,
.owner = THIS_MODULE,
.pm = STU300_I2C_PM,
+ .of_match_table = stu300_dt_match,
},
.remove = __exit_p(stu300_remove),