When booting from a device tree, the omap driver is using pdev->id,
which is incorrect. The proposed patch uses aliases, as done in
omap-serial.
Signed-off-by: Florian Vaussard <florian.vaussard@xxxxxxx>
---
drivers/i2c/busses/i2c-omap.c | 19 +++++++++++++++----
1 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 5d19a49..9445d1f 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1064,9 +1064,6 @@ omap_i2c_probe(struct platform_device *pdev)
goto err_unuse_clocks;
}
- dev_info(dev->dev, "bus %d rev%d.%d.%d at %d kHz\n", pdev->id,
- dev->dtrev, dev->rev >> 4, dev->rev & 0xf, dev->speed);
-
adap = &dev->adapter;
i2c_set_adapdata(adap, dev);
adap->owner = THIS_MODULE;
@@ -1076,8 +1073,22 @@ omap_i2c_probe(struct platform_device *pdev)
adap->dev.parent = &pdev->dev;
adap->dev.of_node = pdev->dev.of_node;
+ if (adap->dev.of_node)
+ adap->nr = of_alias_get_id(adap->dev.of_node, "i2c");
+ else
+ adap->nr = pdev->id;
+
+ if (adap->nr < 0) {
+ dev_err(&pdev->dev, "failed to get alias/pdev id, errno %d\n",
+ adap->nr);
+ r = -ENODEV;
+ goto err_free_irq;
+ }
+
+ dev_info(dev->dev, "bus %d rev%d.%d.%d at %d kHz\n", adap->nr,
+ dev->dtrev, dev->rev >> 4, dev->rev & 0xf, dev->speed);
+
/* i2c device drivers may be active on return from add_adapter() */
- adap->nr = pdev->id;
r = i2c_add_numbered_adapter(adap);
if (r) {
dev_err(dev->dev, "failure adding adapter\n");
--
1.7.5.4
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