A recent move to send the base addresses though the PRCMU platform device resource instead of defines found in <mach/*>, means that dbx500 devices can no longer boot successfully when booting with Device Tree enabled. This patch ensures the addresses are obtained correctly from DT instead.
Signed-off-by: Lee Jones <[email protected]> --- drivers/mfd/db8500-prcmu.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 8602bf8..a998edc 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -3159,8 +3159,9 @@ static void db8500_prcmu_update_cpufreq(void) */ static int db8500_prcmu_probe(struct platform_device *pdev) { - struct device_node *np = pdev->dev.of_node; struct prcmu_pdata *pdata = dev_get_platdata(&pdev->dev); + struct device_node *np = pdev->dev.of_node; + struct device_node *tcdm_np; int irq = 0, err = 0, i; struct resource *res; @@ -3169,11 +3170,19 @@ static int db8500_prcmu_probe(struct platform_device *pdev) dbx500_fw_version_init(pdev, pdata->version_offset, np); res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "prcmu-tcdm"); if (!res) { - dev_err(&pdev->dev, "no prcmu tcdm region provided\n"); - return -ENOENT; - } - tcdm_base = devm_ioremap(&pdev->dev, res->start, - resource_size(res)); + if (np) { + tcdm_np = of_find_node_by_name(np->parent, + "prcmu-tcdm-per4"); + if (!tcdm_np) { + dev_err(&pdev->dev, + "no prcmu tcdm region provided\n"); + return -ENOENT; + } + tcdm_base = of_iomap(tcdm_np, 0); + } + } else + tcdm_base = devm_ioremap(&pdev->dev, res->start, + resource_size(res)); /* Clean up the mailbox interrupts after pre-kernel code. */ writel(ALL_MBOX_BITS, PRCM_ARM_IT1_CLR); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
