pwm: imx: Add separate set of PWM ops for v1 and v2

This patch provides separate set of PWM operations utilized by i.MX's
v1 and v2 of the PWM hardware.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Signed-off-by: Lukasz Majewski <l.majewski@majess.pl>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index bb64122a74be32a39c19f5c87bfd6a10a53096c7..c405cb777808d4ffa6c1ad65f463278c9701f9b8 100644 (file)
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -239,7 +239,14 @@ static void imx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
        clk_disable_unprepare(imx->clk_per);
 }
 
-static const struct pwm_ops imx_pwm_ops = {
+static const struct pwm_ops imx_pwm_ops_v1 = {
+       .enable = imx_pwm_enable,
+       .disable = imx_pwm_disable,
+       .config = imx_pwm_config,
+       .owner = THIS_MODULE,
+};
+
+static const struct pwm_ops imx_pwm_ops_v2 = {
        .enable = imx_pwm_enable,
        .disable = imx_pwm_disable,
        .config = imx_pwm_config,
@@ -250,16 +257,19 @@ 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);
+       const struct pwm_ops *ops;
 };
 
 static struct imx_pwm_data imx_pwm_data_v1 = {
        .config = imx_pwm_config_v1,
        .set_enable = imx_pwm_set_enable_v1,
+       .ops = &imx_pwm_ops_v1,
 };
 
 static struct imx_pwm_data imx_pwm_data_v2 = {
        .config = imx_pwm_config_v2,
        .set_enable = imx_pwm_set_enable_v2,
+       .ops = &imx_pwm_ops_v2,
 };
 
 static const struct of_device_id imx_pwm_dt_ids[] = {
@@ -281,6 +291,8 @@ static int imx_pwm_probe(struct platform_device *pdev)
        if (!of_id)
                return -ENODEV;
 
+       data = of_id->data;
+
        imx = devm_kzalloc(&pdev->dev, sizeof(*imx), GFP_KERNEL);
        if (imx == NULL)
                return -ENOMEM;
@@ -292,7 +304,7 @@ static int imx_pwm_probe(struct platform_device *pdev)
                return PTR_ERR(imx->clk_per);
        }
 
-       imx->chip.ops = &imx_pwm_ops;
+       imx->chip.ops = data->ops;
        imx->chip.dev = &pdev->dev;
        imx->chip.base = -1;
        imx->chip.npwm = 1;
@@ -303,7 +315,6 @@ static int imx_pwm_probe(struct platform_device *pdev)
        if (IS_ERR(imx->mmio_base))
                return PTR_ERR(imx->mmio_base);
 
-       data = of_id->data;
        imx->config = data->config;
        imx->set_enable = data->set_enable;