From bde251a9a813bfbb8f300abef265ecb7028c428f Mon Sep 17 00:00:00 2001 From: Nishanth Menon Date: Fri, 27 Sep 2013 08:25:13 -0500 Subject: [PATCH] regulator: ti-abb: skip optional parameter for ldo-address On platforms like OMAP4460, LDO override is never used. Even though efuse determines the ABB bias mode to operate at, ABB voltage is preconfigured in internal efuse registers without the need for LDO override for bias voltage. So skip optional parameter if property is not present. Signed-off-by: Nishanth Menon Signed-off-by: Mark Brown --- drivers/regulator/ti-abb-regulator.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c index d8e3e1262bc2..1e0280536e72 100644 --- a/drivers/regulator/ti-abb-regulator.c +++ b/drivers/regulator/ti-abb-regulator.c @@ -765,6 +765,11 @@ static int ti_abb_probe(struct platform_device *pdev) pname = "ldo-address"; res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname); + if (!res) { + dev_dbg(dev, "Missing '%s' IO resource\n", pname); + ret = -ENODEV; + goto skip_opt; + } abb->ldo_base = devm_ioremap_resource(dev, res); if (IS_ERR(abb->ldo_base)) { ret = PTR_ERR(abb->ldo_base);