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path: root/drivers/pwm/pwm-tiehrpwm.c
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Diffstat (limited to 'drivers/pwm/pwm-tiehrpwm.c')
-rw-r--r--drivers/pwm/pwm-tiehrpwm.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 8b4c86fa99c8..48a485c2e422 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -471,11 +471,6 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
pc->chip.npwm = NUM_PWM_CHANNEL;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!r) {
- dev_err(&pdev->dev, "no memory resource defined\n");
- return -ENODEV;
- }
-
pc->mmio_base = devm_ioremap_resource(&pdev->dev, r);
if (IS_ERR(pc->mmio_base))
return PTR_ERR(pc->mmio_base);
@@ -533,7 +528,7 @@ static int ehrpwm_pwm_remove(struct platform_device *pdev)
return pwmchip_remove(&pc->chip);
}
-void ehrpwm_pwm_save_context(struct ehrpwm_pwm_chip *pc)
+static void ehrpwm_pwm_save_context(struct ehrpwm_pwm_chip *pc)
{
pm_runtime_get_sync(pc->chip.dev);
pc->ctx.tbctl = ehrpwm_read(pc->mmio_base, TBCTL);
@@ -547,7 +542,7 @@ void ehrpwm_pwm_save_context(struct ehrpwm_pwm_chip *pc)
pm_runtime_put_sync(pc->chip.dev);
}
-void ehrpwm_pwm_restore_context(struct ehrpwm_pwm_chip *pc)
+static void ehrpwm_pwm_restore_context(struct ehrpwm_pwm_chip *pc)
{
ehrpwm_write(pc->mmio_base, TBPRD, pc->ctx.tbprd);
ehrpwm_write(pc->mmio_base, CMPA, pc->ctx.cmpa);
@@ -559,6 +554,7 @@ void ehrpwm_pwm_restore_context(struct ehrpwm_pwm_chip *pc)
ehrpwm_write(pc->mmio_base, TBCTL, pc->ctx.tbctl);
}
+#ifdef CONFIG_PM_SLEEP
static int ehrpwm_pwm_suspend(struct device *dev)
{
struct ehrpwm_pwm_chip *pc = dev_get_drvdata(dev);
@@ -594,6 +590,7 @@ static int ehrpwm_pwm_resume(struct device *dev)
ehrpwm_pwm_restore_context(pc);
return 0;
}
+#endif
static SIMPLE_DEV_PM_OPS(ehrpwm_pwm_pm_ops, ehrpwm_pwm_suspend,
ehrpwm_pwm_resume);