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path: root/drivers/pwm/pwm-tiecap.c
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Diffstat (limited to 'drivers/pwm/pwm-tiecap.c')
-rw-r--r--drivers/pwm/pwm-tiecap.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index 22e96e2bffd..72ca42dfa73 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -240,11 +240,6 @@ static int ecap_pwm_probe(struct platform_device *pdev)
pc->chip.npwm = 1;
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);
@@ -295,7 +290,7 @@ static int ecap_pwm_remove(struct platform_device *pdev)
return pwmchip_remove(&pc->chip);
}
-void ecap_pwm_save_context(struct ecap_pwm_chip *pc)
+static void ecap_pwm_save_context(struct ecap_pwm_chip *pc)
{
pm_runtime_get_sync(pc->chip.dev);
pc->ctx.ecctl2 = readw(pc->mmio_base + ECCTL2);
@@ -304,13 +299,14 @@ void ecap_pwm_save_context(struct ecap_pwm_chip *pc)
pm_runtime_put_sync(pc->chip.dev);
}
-void ecap_pwm_restore_context(struct ecap_pwm_chip *pc)
+static void ecap_pwm_restore_context(struct ecap_pwm_chip *pc)
{
writel(pc->ctx.cap3, pc->mmio_base + CAP3);
writel(pc->ctx.cap4, pc->mmio_base + CAP4);
writew(pc->ctx.ecctl2, pc->mmio_base + ECCTL2);
}
+#ifdef CONFIG_PM_SLEEP
static int ecap_pwm_suspend(struct device *dev)
{
struct ecap_pwm_chip *pc = dev_get_drvdata(dev);
@@ -337,6 +333,7 @@ static int ecap_pwm_resume(struct device *dev)
ecap_pwm_restore_context(pc);
return 0;
}
+#endif
static SIMPLE_DEV_PM_OPS(ecap_pwm_pm_ops, ecap_pwm_suspend, ecap_pwm_resume);