linux-kernel - [PATCH 9/9] pwm i.MX: add devicetree support

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Date:	Tue, 28 Aug 2012 13:48:24 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	HACHIMI Samir <shachimi@...neo-embedded.com>, shawn.guo@...aro.org,
	thierry.reding@...onic-design.de, linux-kernel@...r.kernel.org,
	Benoît Thébaudeau 
	<benoit.thebaudeau@...ansee.com>,
	Philipp Zabel <p.zabel@...gutronix.de>,
	Sascha Hauer <s.hauer@...gutronix.de>
Subject: [PATCH 9/9] pwm i.MX: add devicetree support

From: Philipp Zabel <p.zabel@...gutronix.de>

Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
---
 drivers/pwm/pwm-imx.c |   25 ++++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 308ab51..dce2acb 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -206,9 +206,25 @@ static struct pwm_ops imx_pwm_ops = {
 	.owner = THIS_MODULE,
 };
 
+struct imx_pwm_data {
+	int (*config)(struct pwm_chip *chip,
+		struct pwm_device *pwm, int duty_ns, int period_ns);
+	void (*set_enable)(struct pwm_chip *chip, bool enable);
+};
+
+static struct imx_pwm_data imx_pwm_data_v1 = {
+	.config = imx_pwm_config_v1,
+	.set_enable = imx_pwm_set_enable_v1,
+};
+
+static struct imx_pwm_data imx_pwm_data_v2 = {
+	.config = imx_pwm_config_v2,
+	.set_enable = imx_pwm_set_enable_v2,
+};
+
 static const struct of_device_id imx_pwm_dt_ids[] = {
-	{ .compatible = "fsl,imx1-pwm", .data = &imx_pwm_config_v1, },
-	{ .compatible = "fsl,imx27-pwm", .data = &imx_pwm_config_v2, },
+	{ .compatible = "fsl,imx1-pwm", .data = &imx_pwm_data_v1, },
+	{ .compatible = "fsl,imx27-pwm", .data = &imx_pwm_data_v2, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, imx_pwm_of_match);
@@ -257,7 +273,9 @@ static int __devinit imx_pwm_probe(struct platform_device *pdev)
 		return -EADDRNOTAVAIL;
 
 	if (of_id) {
-		imx->config = of_id->data;
+		struct imx_pwm_data *data = of_id->data;
+		imx->config = data->config;
+		imx->set_enable = data->set_enable;
 	} else {
 		if (cpu_is_mx1() || cpu_is_mx21()) {
 			imx->config = imx_pwm_config_v1;
@@ -290,6 +308,7 @@ static int __devexit imx_pwm_remove(struct platform_device *pdev)
 static struct platform_driver imx_pwm_driver = {
 	.driver		= {
 		.name	= "mxc_pwm",
+		.of_match_table = of_match_ptr(imx_pwm_dt_ids),
 	},
 	.probe		= imx_pwm_probe,
 	.remove		= __devexit_p(imx_pwm_remove),
-- 
1.7.10.4

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