mfd: ab8500-core: Pass GPADC compatible string to MFD core

When booting with Device Tree enabled the MFD core uses each device's
compatible string to find and allocate its associated of_node pointer,
which in turn is passed to the driver via the platform_device struct.
Without it, the driver won't be able to interrogate the Device Tree or
locate suitable regulators and will most likely fail to probe.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

diff --git a/drivers/mfd/ab8500-core.c b/drivers/mfd/ab8500-core.c
index 1183e6d..258b367 100644 (file)
--- a/drivers/mfd/ab8500-core.c
+++ b/drivers/mfd/ab8500-core.c
@@ -1060,6 +1060,7 @@ static struct mfd_cell ab8500_devs[] = {
        },
        {
                .name = "ab8500-gpadc",
+               .of_compatible = "stericsson,ab8500-gpadc",
                .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
                .resources = ab8500_gpadc_resources,
        },
@@ -1217,6 +1218,7 @@ static struct mfd_cell ab8505_devs[] = {
        },
        {
                .name = "ab8500-gpadc",
+               .of_compatible = "stericsson,ab8500-gpadc",
                .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
                .resources = ab8505_gpadc_resources,
        },
@@ -1280,6 +1282,7 @@ static struct mfd_cell ab8540_devs[] = {
        },
        {
                .name = "ab8500-gpadc",
+               .of_compatible = "stericsson,ab8500-gpadc",
                .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
                .resources = ab8505_gpadc_resources,
        },