linux-kernel - [PATCH v9 3/5] regulators: axp20x: Use "clock-frequency" property for dcdc work frequency

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Message-Id: <1421941147-9682-4-git-send-email-wens@csie.org>
Date:	Thu, 22 Jan 2015 23:39:05 +0800
From:	Chen-Yu Tsai <wens@...e.org>
To:	Mark Brown <broonie@...nel.org>, Lee Jones <lee.jones@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Grant Likely <grant.likely@...aro.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Chen-Yu Tsai <wens@...e.org>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v9 3/5] regulators: axp20x: Use "clock-frequency" property for dcdc work frequency

Since the dcdc regulator work frequency is a property of the regulators
DT sub-tree, there is no issue of naming collisions, so we can use the
standard "clock-frequency" binding for this.

The driver sets a reasonable default value (same as the datasheet), and
only 1 dts has the old binding, with the default value.

Signed-off-by: Chen-Yu Tsai <wens@...e.org>
---
 drivers/regulator/axp20x-regulator.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index e4331f5e5d7d..990ac453abc8 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -186,8 +186,10 @@ static int axp20x_regulator_parse_dt(struct platform_device *pdev)
 	if (!regulators) {
 		dev_warn(&pdev->dev, "regulators node not found\n");
 	} else {
-		dcdcfreq = 1500;
-		of_property_read_u32(regulators, "x-powers,dcdc-freq", &dcdcfreq);
+		dcdcfreq = 1500000;
+		of_property_read_u32(regulators, "clock-frequency", &dcdcfreq);
+		/* axp20x_set_dcdc_freq() takes kHZ */
+		dcdcfreq /= 1000;
 		ret = axp20x_set_dcdc_freq(pdev, dcdcfreq);
 		if (ret < 0) {
 			dev_err(&pdev->dev, "Error setting dcdc frequency: %d\n", ret);
-- 
2.1.4

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