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authorMatej Kenda <matej.kenda@hermes-softlab.com>2007-03-05 07:06:40 -0500
committerRussell King <rmk+kernel@arm.linux.org.uk>2007-04-21 15:36:55 -0400
commita79220b7633b3926a9bd3527bdac3f04dbe6845c (patch)
tree3f468fa05d28b330858555bac598e968c55accf7 /drivers/i2c/busses/i2c-pxa.c
parent4fe4a2bf9a687fc87ea796c234da8c59df763aab (diff)
[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>
Diffstat (limited to 'drivers/i2c/busses/i2c-pxa.c')
-rw-r--r--drivers/i2c/busses/i2c-pxa.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 14e83d0aac8c..11c7477a0ffa 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)
839{ 839{
840 struct pxa_i2c *i2c = &i2c_pxa; 840 struct pxa_i2c *i2c = &i2c_pxa;
841 struct resource *res; 841 struct resource *res;
842#ifdef CONFIG_I2C_PXA_SLAVE
843 struct i2c_pxa_platform_data *plat = dev->dev.platform_data; 842 struct i2c_pxa_platform_data *plat = dev->dev.platform_data;
844#endif
845 int ret; 843 int ret;
846 int irq; 844 int irq;
847 845
@@ -911,6 +909,10 @@ static int i2c_pxa_probe(struct platform_device *dev)
911 i2c->adap.algo_data = i2c; 909 i2c->adap.algo_data = i2c;
912 i2c->adap.dev.parent = &dev->dev; 910 i2c->adap.dev.parent = &dev->dev;
913 911
912 if (plat) {
913 i2c->adap.class = plat->class;
914 }
915
914 ret = i2c_add_adapter(&i2c->adap); 916 ret = i2c_add_adapter(&i2c->adap);
915 if (ret < 0) { 917 if (ret < 0) {
916 printk(KERN_INFO "I2C: Failed to add bus\n"); 918 printk(KERN_INFO "I2C: Failed to add bus\n");