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authorDavid Brownell <david-b@pacbell.net>2007-05-10 14:15:52 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-10 20:26:53 +0400
commit6e99806ebb33c1b4906ce4f99eec65d4962f12b9 (patch)
treef635e145eb92dd2c4ca7bf157664ff770a3f952e /drivers/i2c
parentdd00a99e7a4b739bd41ef4093760efc7e447f963 (diff)
downloadlinux-6e99806ebb33c1b4906ce4f99eec65d4962f12b9.tar.xz
i2c-at91 supports new-style i2c drivers
Make i2c-at91 register as i2c adapter zero (none of these chips seem to have more than one TWI controllers) to let it kick in any board-specific device declarations; also make it hotplug/coldplug. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Jean Delvare <khali@linux-fr.org> Cc: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/busses/i2c-at91.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index f35156c58922..1dcb714af55a 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -226,13 +226,14 @@ static int __devinit at91_i2c_probe(struct platform_device *pdev)
adapter->algo = &at91_algorithm;
adapter->class = I2C_CLASS_HWMON;
adapter->dev.parent = &pdev->dev;
+ /* adapter->id == 0 ... only one TWI controller for now */
platform_set_drvdata(pdev, adapter);
clk_enable(twi_clk); /* enable peripheral clock */
at91_twi_hwinit(); /* initialize TWI controller */
- rc = i2c_add_adapter(adapter);
+ rc = i2c_add_numbered_adapter(adapter);
if (rc) {
dev_err(&pdev->dev, "Adapter %s registration failed\n",
adapter->name);
@@ -295,6 +296,9 @@ static int at91_i2c_resume(struct platform_device *pdev)
#define at91_i2c_resume NULL
#endif
+/* work with "modprobe at91_i2c" from hotplugging or coldplugging */
+MODULE_ALIAS("at91_i2c");
+
static struct platform_driver at91_i2c_driver = {
.probe = at91_i2c_probe,
.remove = __devexit_p(at91_i2c_remove),