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dm: Move uclass error checking/probing into a function
Several functions will use this same pattern, so bring it into a function. Signed-off-by: Simon Glass <sjg@chromium.org>
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1 changed files with 22 additions and 6 deletions
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@ -158,13 +158,19 @@ int uclass_find_device(enum uclass_id id, int index, struct udevice **devp)
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return -ENODEV;
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return -ENODEV;
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}
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}
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int uclass_get_device(enum uclass_id id, int index, struct udevice **devp)
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/**
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* uclass_get_device_tail() - handle the end of a get_device call
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*
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* This handles returning an error or probing a device as needed.
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*
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* @dev: Device that needs to be probed
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* @ret: Error to return. If non-zero then the device is not probed
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* @devp: Returns the value of 'dev' if there is no error
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* @return ret, if non-zero, else the result of the device_probe() call
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*/
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static int uclass_get_device_tail(struct udevice *dev, int ret,
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struct udevice **devp)
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{
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{
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struct udevice *dev;
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int ret;
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*devp = NULL;
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ret = uclass_find_device(id, index, &dev);
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if (ret)
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if (ret)
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return ret;
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return ret;
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@ -177,6 +183,16 @@ int uclass_get_device(enum uclass_id id, int index, struct udevice **devp)
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return 0;
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return 0;
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}
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}
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int uclass_get_device(enum uclass_id id, int index, struct udevice **devp)
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{
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struct udevice *dev;
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int ret;
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*devp = NULL;
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ret = uclass_find_device(id, index, &dev);
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return uclass_get_device_tail(dev, ret, devp);
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}
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int uclass_first_device(enum uclass_id id, struct udevice **devp)
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int uclass_first_device(enum uclass_id id, struct udevice **devp)
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{
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{
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struct uclass *uc;
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struct uclass *uc;
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