aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorFabio Estevam <fabio.estevam@freescale.com>2014-12-09 23:39:53 -0200
committerLee Jones <lee.jones@linaro.org>2015-01-20 12:52:48 +0000
commitb3f6c73db732704945408cec19f2391d3eb7483e (patch)
tree73608c610506030285c685842586991c7d8af967
parentb7392d2247cfe6771f95d256374f1a8e6a6f48d6 (diff)
downloadlinux-b3f6c73db732704945408cec19f2391d3eb7483e.tar.gz
mfd: da9052-core: Fix platform-device id collision
Allow multiple DA9052 regulators be registered by registering with PLATFORM_DEVID_AUTO instead of PLATFORM_DEVID_NONE. The subdevices are currently registered with PLATFORM_DEVID_NONE, which will cause a name collision on the platform bus when multiple regulators are registered: [ 0.128855] da9052-regulator da9052-regulator: invalid regulator ID specified [ 0.128973] da9052-regulator: probe of da9052-regulator failed with error -22 [ 0.129148] ------------[ cut here ]------------ [ 0.129200] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x5c/0x7c() [ 0.129233] sysfs: cannot create duplicate filename '/devices/platform/soc/60000000.aips/63fc8000.i2c/i2c-0/0-0048/da9052-regulator ... [ 0.132891] ------------[ cut here ]------------ [ 0.132924] WARNING: CPU: 0 PID: 1 at lib/kobject.c:240 kobject_add_internal+0x24c/0x2cc() [ 0.132957] kobject_add_internal failed for da9052-regulator with -EEXIST, don't try to register things with the same name in the same directory. ... [ 0.137000] da9052 0-0048: mfd_add_devices failed: -17 [ 0.138486] da9052: probe of 0-0048 failed with error -17 Based on the fix done by Johan Hovold at commit b6684228726cc255 ("mfd: viperboard: Fix platform-device id collision"). Tested on a imx53-qsb board, where multiple DA9053 regulators can be successfully probed. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
-rw-r--r--drivers/mfd/da9052-core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/mfd/da9052-core.c b/drivers/mfd/da9052-core.c
index 52a0c2f6264..ae498b53ee4 100644
--- a/drivers/mfd/da9052-core.c
+++ b/drivers/mfd/da9052-core.c
@@ -554,7 +554,8 @@ int da9052_device_init(struct da9052 *da9052, u8 chip_id)
return ret;
}
- ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
+ ret = mfd_add_devices(da9052->dev, PLATFORM_DEVID_AUTO,
+ da9052_subdev_info,
ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL);
if (ret) {
dev_err(da9052->dev, "mfd_add_devices failed: %d\n", ret);