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path: root/drivers/pwm
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Diffstat (limited to 'drivers/pwm')
-rw-r--r--drivers/pwm/core.c38
-rw-r--r--drivers/pwm/pwm-imx.c6
-rw-r--r--drivers/pwm/pwm-lpc32xx.c6
-rw-r--r--drivers/pwm/pwm-mxs.c6
-rw-r--r--drivers/pwm/pwm-puv3.c6
-rw-r--r--drivers/pwm/pwm-pxa.c6
-rw-r--r--drivers/pwm/pwm-spear.c6
-rw-r--r--drivers/pwm/pwm-tegra.c6
-rw-r--r--drivers/pwm/pwm-tiecap.c6
-rw-r--r--drivers/pwm/pwm-tiehrpwm.c6
-rw-r--r--drivers/pwm/pwm-tipwmss.c6
-rw-r--r--drivers/pwm/pwm-vt8500.c6
12 files changed, 67 insertions, 37 deletions
diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index 7d6081879c1..32221cb0cbe 100644
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -473,7 +473,7 @@ static struct pwm_chip *of_node_to_pwmchip(struct device_node *np)
}
/**
- * of_pwm_request() - request a PWM via the PWM framework
+ * of_pwm_get() - request a PWM via the PWM framework
* @np: device node to get the PWM from
* @con_id: consumer name
*
@@ -488,8 +488,7 @@ static struct pwm_chip *of_node_to_pwmchip(struct device_node *np)
* becomes mandatory for devices that look up the PWM device via the con_id
* parameter.
*/
-static struct pwm_device *of_pwm_request(struct device_node *np,
- const char *con_id)
+struct pwm_device *of_pwm_get(struct device_node *np, const char *con_id)
{
struct pwm_device *pwm = NULL;
struct of_phandle_args args;
@@ -547,6 +546,7 @@ put:
return pwm;
}
+EXPORT_SYMBOL_GPL(of_pwm_get);
/**
* pwm_add_table() - register PWM device consumers
@@ -589,7 +589,7 @@ struct pwm_device *pwm_get(struct device *dev, const char *con_id)
/* look up via DT first */
if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node)
- return of_pwm_request(dev->of_node, con_id);
+ return of_pwm_get(dev->of_node, con_id);
/*
* We look up the provider in the static table typically provided by
@@ -710,6 +710,36 @@ struct pwm_device *devm_pwm_get(struct device *dev, const char *con_id)
}
EXPORT_SYMBOL_GPL(devm_pwm_get);
+/**
+ * devm_of_pwm_get() - resource managed of_pwm_get()
+ * @dev: device for PWM consumer
+ * @np: device node to get the PWM from
+ * @con_id: consumer name
+ *
+ * This function performs like of_pwm_get() but the acquired PWM device will
+ * automatically be released on driver detach.
+ */
+struct pwm_device *devm_of_pwm_get(struct device *dev, struct device_node *np,
+ const char *con_id)
+{
+ struct pwm_device **ptr, *pwm;
+
+ ptr = devres_alloc(devm_pwm_release, sizeof(**ptr), GFP_KERNEL);
+ if (!ptr)
+ return ERR_PTR(-ENOMEM);
+
+ pwm = of_pwm_get(np, con_id);
+ if (!IS_ERR(pwm)) {
+ *ptr = pwm;
+ devres_add(dev, ptr);
+ } else {
+ devres_free(ptr);
+ }
+
+ return pwm;
+}
+EXPORT_SYMBOL_GPL(devm_of_pwm_get);
+
static int devm_pwm_match(struct device *dev, void *res, void *data)
{
struct pwm_device **p = res;
diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 65a86bdeabe..3f5677b7690 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -274,9 +274,9 @@ static int imx_pwm_probe(struct platform_device *pdev)
return -ENODEV;
}
- imx->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
- if (imx->mmio_base == NULL)
- return -EADDRNOTAVAIL;
+ imx->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(imx->mmio_base))
+ return PTR_ERR(imx->mmio_base);
data = of_id->data;
imx->config = data->config;
diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c
index 14106440294..b3f0d0dfd74 100644
--- a/drivers/pwm/pwm-lpc32xx.c
+++ b/drivers/pwm/pwm-lpc32xx.c
@@ -110,9 +110,9 @@ static int lpc32xx_pwm_probe(struct platform_device *pdev)
if (!res)
return -EINVAL;
- lpc32xx->base = devm_request_and_ioremap(&pdev->dev, res);
- if (!lpc32xx->base)
- return -EADDRNOTAVAIL;
+ lpc32xx->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(lpc32xx->base))
+ return PTR_ERR(lpc32xx->base);
lpc32xx->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(lpc32xx->clk))
diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index 7ec345f0183..a53d3094b75 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -139,9 +139,9 @@ static int mxs_pwm_probe(struct platform_device *pdev)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- mxs->base = devm_request_and_ioremap(&pdev->dev, res);
- if (!mxs->base)
- return -EADDRNOTAVAIL;
+ mxs->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(mxs->base))
+ return PTR_ERR(mxs->base);
pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
if (IS_ERR(pinctrl))
diff --git a/drivers/pwm/pwm-puv3.c b/drivers/pwm/pwm-puv3.c
index b882f6032fe..db964e6ecf5 100644
--- a/drivers/pwm/pwm-puv3.c
+++ b/drivers/pwm/pwm-puv3.c
@@ -123,9 +123,9 @@ static int pwm_probe(struct platform_device *pdev)
return -ENODEV;
}
- puv3->base = devm_request_and_ioremap(&pdev->dev, r);
- if (puv3->base == NULL)
- return -EADDRNOTAVAIL;
+ puv3->base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(puv3->base))
+ return PTR_ERR(puv3->base);
puv3->chip.dev = &pdev->dev;
puv3->chip.ops = &puv3_pwm_ops;
diff --git a/drivers/pwm/pwm-pxa.c b/drivers/pwm/pwm-pxa.c
index f32fc4e66e0..20370e61de5 100644
--- a/drivers/pwm/pwm-pxa.c
+++ b/drivers/pwm/pwm-pxa.c
@@ -165,9 +165,9 @@ static int pwm_probe(struct platform_device *pdev)
return -ENODEV;
}
- pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
- if (pwm->mmio_base == NULL)
- return -EADDRNOTAVAIL;
+ pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(pwm->mmio_base))
+ return PTR_ERR(pwm->mmio_base);
ret = pwmchip_add(&pwm->chip);
if (ret < 0) {
diff --git a/drivers/pwm/pwm-spear.c b/drivers/pwm/pwm-spear.c
index 83b21d9d5cf..69a2d9eb34d 100644
--- a/drivers/pwm/pwm-spear.c
+++ b/drivers/pwm/pwm-spear.c
@@ -192,9 +192,9 @@ static int spear_pwm_probe(struct platform_device *pdev)
return -ENOMEM;
}
- pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
- if (!pc->mmio_base)
- return -EADDRNOTAVAIL;
+ pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(pc->mmio_base))
+ return PTR_ERR(pc->mmio_base);
pc->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(pc->clk))
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c
index f7770312c1a..af3ab48cb7e 100644
--- a/drivers/pwm/pwm-tegra.c
+++ b/drivers/pwm/pwm-tegra.c
@@ -186,9 +186,9 @@ static int tegra_pwm_probe(struct platform_device *pdev)
return -ENODEV;
}
- pwm->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
- if (!pwm->mmio_base)
- return -EADDRNOTAVAIL;
+ pwm->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(pwm->mmio_base))
+ return PTR_ERR(pwm->mmio_base);
platform_set_drvdata(pdev, pwm);
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 05b676db88e..22e96e2bffd 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -245,9 +245,9 @@ static int ecap_pwm_probe(struct platform_device *pdev)
return -ENODEV;
}
- pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
- if (!pc->mmio_base)
- return -EADDRNOTAVAIL;
+ pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(pc->mmio_base))
+ return PTR_ERR(pc->mmio_base);
ret = pwmchip_add(&pc->chip);
if (ret < 0) {
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 33e15c4fba0..8b4c86fa99c 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -476,9 +476,9 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
return -ENODEV;
}
- pc->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
- if (!pc->mmio_base)
- return -EADDRNOTAVAIL;
+ pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(pc->mmio_base))
+ return PTR_ERR(pc->mmio_base);
/* Acquire tbclk for Time Base EHRPWM submodule */
pc->tbclk = devm_clk_get(&pdev->dev, "tbclk");
diff --git a/drivers/pwm/pwm-tipwmss.c b/drivers/pwm/pwm-tipwmss.c
index 3448a1c8859..17cbc59660e 100644
--- a/drivers/pwm/pwm-tipwmss.c
+++ b/drivers/pwm/pwm-tipwmss.c
@@ -75,9 +75,9 @@ static int pwmss_probe(struct platform_device *pdev)
return -ENODEV;
}
- info->mmio_base = devm_request_and_ioremap(&pdev->dev, r);
- if (!info->mmio_base)
- return -EADDRNOTAVAIL;
+ info->mmio_base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(info->mmio_base))
+ return PTR_ERR(info->mmio_base);
pm_runtime_enable(&pdev->dev);
pm_runtime_get_sync(&pdev->dev);
diff --git a/drivers/pwm/pwm-vt8500.c b/drivers/pwm/pwm-vt8500.c
index 98d79e9f014..69effd19afc 100644
--- a/drivers/pwm/pwm-vt8500.c
+++ b/drivers/pwm/pwm-vt8500.c
@@ -235,9 +235,9 @@ static int vt8500_pwm_probe(struct platform_device *pdev)
return -ENODEV;
}
- chip->base = devm_request_and_ioremap(&pdev->dev, r);
- if (!chip->base)
- return -EADDRNOTAVAIL;
+ chip->base = devm_ioremap_resource(&pdev->dev, r);
+ if (IS_ERR(chip->base))
+ return PTR_ERR(chip->base);
ret = clk_prepare(chip->clk);
if (ret < 0) {
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 02:53:44 +0000