diff options
| author | Simon Glass | 2016-01-17 16:11:08 -0700 |
|---|---|---|
| committer | Bin Meng | 2016-01-24 12:07:19 +0800 |
| commit | ac94b7bcbed9a5ee71f6fb9a507c72abf601cb8a (patch) | |
| tree | 8158f7f6868c310d114e0336413f75d239850a00 /drivers | |
| parent | 907eed2ce36db8407d56edc305c32b0923934322 (diff) | |
dm: syscon: Allow finding devices by driver data
We have a way to find a regmap by its syscon driver data value. Add the same
for syscon itself.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/core/syscon-uclass.c | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/drivers/core/syscon-uclass.c b/drivers/core/syscon-uclass.c index 686c32056ec..a0666d0bacd 100644 --- a/drivers/core/syscon-uclass.c +++ b/drivers/core/syscon-uclass.c @@ -32,7 +32,7 @@ static int syscon_pre_probe(struct udevice *dev) return regmap_init_mem(dev, &priv->regmap); } -struct regmap *syscon_get_regmap_by_driver_data(ulong driver_data) +int syscon_get_by_driver_data(ulong driver_data, struct udevice **devp) { struct udevice *dev; struct uclass *uc; @@ -40,22 +40,29 @@ struct regmap *syscon_get_regmap_by_driver_data(ulong driver_data) ret = uclass_get(UCLASS_SYSCON, &uc); if (ret) - return ERR_PTR(ret); + return ret; uclass_foreach_dev(dev, uc) { if (dev->driver_data == driver_data) { - struct syscon_uc_info *priv; - int ret; - - ret = device_probe(dev); - if (ret) - return ERR_PTR(ret); - priv = dev_get_uclass_priv(dev); - - return priv->regmap; + *devp = dev; + return device_probe(dev); } } - return ERR_PTR(-ENODEV); + return -ENODEV; +} + +struct regmap *syscon_get_regmap_by_driver_data(ulong driver_data) +{ + struct syscon_uc_info *priv; + struct udevice *dev; + int ret; + + ret = syscon_get_by_driver_data(driver_data, &dev); + if (ret) + return ERR_PTR(ret); + priv = dev_get_uclass_priv(dev); + + return priv->regmap; } void *syscon_get_first_range(ulong driver_data) |