ARM: at91:rtc/rtc-at91sam9: ioremap register bank
Instead of computing virtual address with AT91_VA_BASE_SYS, use the appropriate ioremap() call on the driver "memory" resource. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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@ -307,8 +307,12 @@ static int __devinit at91_rtc_probe(struct platform_device *pdev)
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device_init_wakeup(&pdev->dev, 1);
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platform_set_drvdata(pdev, rtc);
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rtc->rtt = (void __force __iomem *) (AT91_VA_BASE_SYS - AT91_BASE_SYS);
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rtc->rtt += r->start;
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rtc->rtt = ioremap(r->start, resource_size(r));
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if (!rtc->rtt) {
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dev_err(&pdev->dev, "failed to map registers, aborting.\n");
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ret = -ENOMEM;
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goto fail;
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}
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mr = rtt_readl(rtc, MR);
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@ -326,7 +330,7 @@ static int __devinit at91_rtc_probe(struct platform_device *pdev)
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&at91_rtc_ops, THIS_MODULE);
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if (IS_ERR(rtc->rtcdev)) {
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ret = PTR_ERR(rtc->rtcdev);
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goto fail;
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goto fail_register;
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}
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/* register irq handler after we know what name we'll use */
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@ -351,6 +355,8 @@ static int __devinit at91_rtc_probe(struct platform_device *pdev)
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return 0;
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fail_register:
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iounmap(rtc->rtt);
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fail:
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platform_set_drvdata(pdev, NULL);
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kfree(rtc);
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@ -371,6 +377,7 @@ static int __devexit at91_rtc_remove(struct platform_device *pdev)
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rtc_device_unregister(rtc->rtcdev);
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iounmap(rtc->rtt);
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platform_set_drvdata(pdev, NULL);
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kfree(rtc);
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return 0;
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