Re: [PATCH v4 3/4] pmbus: add regulator support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 




On 10/02/2014 04:20 AM, Mark Brown wrote:
On Wed, Oct 01, 2014 at 02:05:49PM -0500, atull@xxxxxxxxxxxxxxxxxxxxx wrote:
From: Alan Tull <atull@xxxxxxxxxxxxxxxxxxxxx>

Add support for simple on/off control of each channel.

This is basically fine but the regulator API has moved on a bit with the
DT handling over the time you've been working on this.

Signed-off-by: Alan Tull <atull@xxxxxxxxxxxxxxxxxxxxx>

v2: Remove '#include <linux/regulator/machine.h>'
     Only one regulator per pmbus device

Put this after the --- as covered in SubmittingPatches.

+static int _pmbus_regulator_on_off(struct regulator_dev *rdev, bool enable)
+{
+	struct device *dev = rdev_get_dev(rdev);
+	struct i2c_client *client = to_i2c_client(dev->parent);
+	u8 page = rdev_get_id(rdev);
+
+	return pmbus_update_byte_data(client, page, PMBUS_OPERATION,
+				      PB_OPERATION_CONTROL_ON,
+				      enable ? PB_OPERATION_CONTROL_ON : 0);
+}
+
+static int pmbus_regulator_enable(struct regulator_dev *rdev)
+{
+	return _pmbus_regulator_on_off(rdev, 1);
+}

I'm not sure factoring out the code actually won much here.

+	np_regulators = of_get_child_by_name(dev->of_node, "regulators");
+	if (!np_regulators)
+		return 0;
+
+	ret = of_regulator_match(dev, np_regulators, info->reg_matches,
+				 info->num_regulators);
+	of_node_put(np_regulators);

We now have helpers in the regulator core for this - set of_match and
regulators_node in the regulator descriptor and the core will resolve
this stuff for you and...

+		if (pdata && pdata->reg_init_data) {
+			config.init_data = &pdata->reg_init_data[i];
+		} else {
+			config.init_data = info->reg_matches[i].init_data;
+			config.of_node = info->reg_matches[i].of_node;
+		}

...you can just drop the else case (and check for reg_init_data) here.


Guess we'll need another version after all.

Alan, in that case please provide prototyles for the new API functions
introduced in patch 2/4.

Thanks,
Guenter

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Device Tree Compilter]     [Device Tree Spec]     [Linux Driver Backports]     [Video for Linux]     [Linux USB Devel]     [Linux PCI Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Yosemite Backpacking]
  Powered by Linux