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authorMatej Kenda <matej.kenda@hermes-softlab.com>2007-03-05 12:06:40 (GMT)
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-04-21 19:36:55 (GMT)
commita79220b7633b3926a9bd3527bdac3f04dbe6845c (patch)
tree3f468fa05d28b330858555bac598e968c55accf7
parent4fe4a2bf9a687fc87ea796c234da8c59df763aab (diff)
downloadlinux-fsl-qoriq-a79220b7633b3926a9bd3527bdac3f04dbe6845c.tar.xz
[ARM] 4246/1: i2c-pxa: add adapter class to platform specific data
Reposted patch for kernel 2.6.21-rc2. The driver i2c-pxa doesn't set the class member in i2c_adapter, which is used to register the I2C adapter. The hwmon (sensors) drivers (e.g. adm1021) that are connected to a i2c-pxa adapter don't attach because they expect that the adapter supports class I2C_CLASS_HWMON. This patch adds functionality to allow platforms to set the class and pass it as platform_data to the i2c-pxa driver. Sample usage in platform code: static struct i2c_pxa_platform_data my_i2c_platform_data = { .class = I2C_CLASS_HWMON }; static void __init my_platform_init(void) { (void) platform_add_devices(devices, ARRAY_SIZE(devices)); pxa_set_i2c_info(&my_i2c_platform_data); } Signed-off-by: Matej Kenda <matej.kenda@hermes-softlab.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
-rw-r--r--drivers/i2c/busses/i2c-pxa.c6
-rw-r--r--include/asm-arm/arch-pxa/i2c.h1
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 14e83d0..11c7477 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -839,9 +839,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
{
struct pxa_i2c *i2c = &i2c_pxa;
struct resource *res;
-#ifdef CONFIG_I2C_PXA_SLAVE
struct i2c_pxa_platform_data *plat = dev->dev.platform_data;
-#endif
int ret;
int irq;
@@ -911,6 +909,10 @@ static int i2c_pxa_probe(struct platform_device *dev)
i2c->adap.algo_data = i2c;
i2c->adap.dev.parent = &dev->dev;
+ if (plat) {
+ i2c->adap.class = plat->class;
+ }
+
ret = i2c_add_adapter(&i2c->adap);
if (ret < 0) {
printk(KERN_INFO "I2C: Failed to add bus\n");
diff --git a/include/asm-arm/arch-pxa/i2c.h b/include/asm-arm/arch-pxa/i2c.h
index 46ec224..e404b23 100644
--- a/include/asm-arm/arch-pxa/i2c.h
+++ b/include/asm-arm/arch-pxa/i2c.h
@@ -64,6 +64,7 @@ struct i2c_slave_client;
struct i2c_pxa_platform_data {
unsigned int slave_addr;
struct i2c_slave_client *slave;
+ unsigned int class;
};
extern void pxa_set_i2c_info(struct i2c_pxa_platform_data *info);