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path: root/drivers/pwm/pwm-lpss-platform.c
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Diffstat (limited to 'drivers/pwm/pwm-lpss-platform.c')
-rw-r--r--drivers/pwm/pwm-lpss-platform.c59
1 files changed, 14 insertions, 45 deletions
diff --git a/drivers/pwm/pwm-lpss-platform.c b/drivers/pwm/pwm-lpss-platform.c
index 928570430cef..653ec9d0c8bf 100644
--- a/drivers/pwm/pwm-lpss-platform.c
+++ b/drivers/pwm/pwm-lpss-platform.c
@@ -7,56 +7,33 @@
* Derived from the original pwm-lpss.c
*/
-#include <linux/acpi.h>
#include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+#include <linux/property.h>
#include "pwm-lpss.h"
-/* BayTrail */
-static const struct pwm_lpss_boardinfo pwm_lpss_byt_info = {
- .clk_rate = 25000000,
- .npwm = 1,
- .base_unit_bits = 16,
-};
-
-/* Braswell */
-static const struct pwm_lpss_boardinfo pwm_lpss_bsw_info = {
- .clk_rate = 19200000,
- .npwm = 1,
- .base_unit_bits = 16,
- .other_devices_aml_touches_pwm_regs = true,
-};
-
-/* Broxton */
-static const struct pwm_lpss_boardinfo pwm_lpss_bxt_info = {
- .clk_rate = 19200000,
- .npwm = 4,
- .base_unit_bits = 22,
- .bypass = true,
-};
static int pwm_lpss_probe_platform(struct platform_device *pdev)
{
const struct pwm_lpss_boardinfo *info;
- const struct acpi_device_id *id;
- struct pwm_lpss_chip *lpwm;
- struct resource *r;
+ struct pwm_chip *chip;
+ void __iomem *base;
- id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);
- if (!id)
+ info = device_get_match_data(&pdev->dev);
+ if (!info)
return -ENODEV;
- info = (const struct pwm_lpss_boardinfo *)id->driver_data;
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
- lpwm = pwm_lpss_probe(&pdev->dev, r, info);
- if (IS_ERR(lpwm))
- return PTR_ERR(lpwm);
-
- platform_set_drvdata(pdev, lpwm);
+ chip = devm_pwm_lpss_probe(&pdev->dev, base, info);
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
/*
* On Cherry Trail devices the GFX0._PS0 AML checks if the controller
@@ -78,15 +55,7 @@ static int pwm_lpss_probe_platform(struct platform_device *pdev)
DPM_FLAG_SMART_SUSPEND);
pm_runtime_set_active(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
-
- return 0;
-}
-
-static int pwm_lpss_remove_platform(struct platform_device *pdev)
-{
- pm_runtime_disable(&pdev->dev);
- return 0;
+ return devm_pm_runtime_enable(&pdev->dev);
}
static const struct acpi_device_id pwm_lpss_acpi_match[] = {
@@ -104,10 +73,10 @@ static struct platform_driver pwm_lpss_driver_platform = {
.acpi_match_table = pwm_lpss_acpi_match,
},
.probe = pwm_lpss_probe_platform,
- .remove = pwm_lpss_remove_platform,
};
module_platform_driver(pwm_lpss_driver_platform);
MODULE_DESCRIPTION("PWM platform driver for Intel LPSS");
MODULE_LICENSE("GPL v2");
+MODULE_IMPORT_NS("PWM_LPSS");
MODULE_ALIAS("platform:pwm-lpss");