@@ -1053,16 +1053,13 @@ static int i2c_pxa_probe_dt(struct platform_device *pdev, struct pxa_i2c *i2c,
struct device_node *np = pdev->dev.of_node;
const struct of_device_id *of_id =
of_match_device(i2c_pxa_dt_ids, &pdev->dev);
- int ret;
if (!of_id)
return 1;
- ret = of_alias_get_id(np, "i2c");
- if (ret < 0) {
- dev_err(&pdev->dev, "failed to get alias id, errno %d\n", ret);
- return ret;
- }
- pdev->id = ret;
+
+ /* For device tree we always use the dynamic or alias-assigned ID */
+ i2c->adap.nr = -1;
+
if (of_get_property(np, "mrvl,i2c-polling", NULL))
i2c->use_pio = 1;
if (of_get_property(np, "mrvl,i2c-fast-mode", NULL))
@@ -1100,6 +1097,9 @@ static int i2c_pxa_probe(struct platform_device *dev)
goto emalloc;
}
+ /* Default adapter num to device id; i2c_pxa_probe_dt can override. */
+ i2c->adap.nr = dev->id;
+
ret = i2c_pxa_probe_dt(dev, i2c, &i2c_type);
if (ret > 0)
ret = i2c_pxa_probe_pdata(dev, i2c, &i2c_type);
@@ -1124,9 +1124,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
spin_lock_init(&i2c->lock);
init_waitqueue_head(&i2c->wait);
- i2c->adap.nr = dev->id;
- snprintf(i2c->adap.name, sizeof(i2c->adap.name), "pxa_i2c-i2c.%u",
- i2c->adap.nr);
+ strlcpy(i2c->adap.name, "pxa_i2c-i2c", sizeof(i2c->adap.name));
i2c->clk = clk_get(&dev->dev, NULL);
if (IS_ERR(i2c->clk)) {
@@ -1169,7 +1167,7 @@ static int i2c_pxa_probe(struct platform_device *dev)
} else {
i2c->adap.algo = &i2c_pxa_algorithm;
ret = request_irq(irq, i2c_pxa_handler, IRQF_SHARED,
- i2c->adap.name, i2c);
+ dev_name(&dev->dev), i2c);
if (ret)
goto ereqirq;
}
The commit: "i2c-core: dt: Pick i2c bus number from i2c alias if present" adds support for automatically picking the bus number based on the alias ID. Remove the now unnecessary code from i2c-pxa that did the same thing. Signed-off-by: Doug Anderson <dianders@chromium.org> --- Changes in v2: - No longer tweak pdev->id as per Sylwester Nawrocki. - No longer add the dev ID to the adap.name. Other drivers don't include the device ID here and it doesn't make sense with dynamically (or automatically) allocated IDs. - Use dev_name(&dev->dev) to register for the IRQ; this matches what the i2c-s3c2410.c does and handles dynamically allocated IDs. - This change was only compile-tested (corgi_defconfig), since I don't have access to a board that uses this driver. drivers/i2c/busses/i2c-pxa.c | 20 +++++++++----------- 1 files changed, 9 insertions(+), 11 deletions(-)