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| author | Matej Kenda <matej.kenda@hermes-softlab.com> | 2007-03-05 12:06:40 (GMT) |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-04-21 19:36:55 (GMT) |
| commit | a79220b7633b3926a9bd3527bdac3f04dbe6845c (patch) | |
| tree | 3f468fa05d28b330858555bac598e968c55accf7 | |
| parent | 4fe4a2bf9a687fc87ea796c234da8c59df763aab (diff) | |
| download | linux-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.c | 6 | ||||
| -rw-r--r-- | include/asm-arm/arch-pxa/i2c.h | 1 |
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); |