diff options
Diffstat (limited to 'drivers/rtc/rtc-coh901331.c')
| -rw-r--r-- | drivers/rtc/rtc-coh901331.c | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c index 93c06588ddc..869cae27379 100644 --- a/drivers/rtc/rtc-coh901331.c +++ b/drivers/rtc/rtc-coh901331.c @@ -43,8 +43,6 @@ struct coh901331_port { struct rtc_device *rtc; struct clk *clk; - u32 phybase; - u32 physize; void __iomem *virtbase; int irq; #ifdef CONFIG_PM_SLEEP @@ -152,12 +150,10 @@ static struct rtc_class_ops coh901331_ops = { static int __exit coh901331_remove(struct platform_device *pdev) { - struct coh901331_port *rtap = dev_get_drvdata(&pdev->dev); + struct coh901331_port *rtap = platform_get_drvdata(pdev); - if (rtap) { + if (rtap) clk_unprepare(rtap->clk); - platform_set_drvdata(pdev, NULL); - } return 0; } @@ -175,19 +171,9 @@ static int __init coh901331_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENOENT; - - rtap->phybase = res->start; - rtap->physize = resource_size(res); - - if (devm_request_mem_region(&pdev->dev, rtap->phybase, rtap->physize, - "rtc-coh901331") == NULL) - return -EBUSY; - - rtap->virtbase = devm_ioremap(&pdev->dev, rtap->phybase, rtap->physize); - if (!rtap->virtbase) - return -ENOMEM; + rtap->virtbase = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(rtap->virtbase)) + return PTR_ERR(rtap->virtbase); rtap->irq = platform_get_irq(pdev, 0); if (devm_request_irq(&pdev->dev, rtap->irq, coh901331_interrupt, 0, @@ -220,7 +206,6 @@ static int __init coh901331_probe(struct platform_device *pdev) return 0; out_no_rtc: - platform_set_drvdata(pdev, NULL); clk_unprepare(rtap->clk); return ret; } @@ -267,18 +252,24 @@ static SIMPLE_DEV_PM_OPS(coh901331_pm_ops, coh901331_suspend, coh901331_resume); static void coh901331_shutdown(struct platform_device *pdev) { - struct coh901331_port *rtap = dev_get_drvdata(&pdev->dev); + struct coh901331_port *rtap = platform_get_drvdata(pdev); clk_enable(rtap->clk); writel(0, rtap->virtbase + COH901331_IRQ_MASK); clk_disable_unprepare(rtap->clk); } +static const struct of_device_id coh901331_dt_match[] = { + { .compatible = "stericsson,coh901331" }, + {}, +}; + static struct platform_driver coh901331_driver = { .driver = { .name = "rtc-coh901331", .owner = THIS_MODULE, .pm = &coh901331_pm_ops, + .of_match_table = coh901331_dt_match, }, .remove = __exit_p(coh901331_remove), .shutdown = coh901331_shutdown, |