diff options
Diffstat (limited to 'drivers/i3c/device.c')
| -rw-r--r-- | drivers/i3c/device.c | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/drivers/i3c/device.c b/drivers/i3c/device.c index 8a156f5ad692..101eaa77de68 100644 --- a/drivers/i3c/device.c +++ b/drivers/i3c/device.c @@ -46,10 +46,16 @@ int i3c_device_do_xfers(struct i3c_device *dev, struct i3c_xfer *xfers, return -EINVAL; } + ret = i3c_bus_rpm_get(dev->bus); + if (ret) + return ret; + i3c_bus_normaluse_lock(dev->bus); ret = i3c_dev_do_xfers_locked(dev->desc, xfers, nxfers, mode); i3c_bus_normaluse_unlock(dev->bus); + i3c_bus_rpm_put(dev->bus); + return ret; } EXPORT_SYMBOL_GPL(i3c_device_do_xfers); @@ -66,10 +72,16 @@ int i3c_device_do_setdasa(struct i3c_device *dev) { int ret; + ret = i3c_bus_rpm_get(dev->bus); + if (ret) + return ret; + i3c_bus_normaluse_lock(dev->bus); ret = i3c_dev_setdasa_locked(dev->desc); i3c_bus_normaluse_unlock(dev->bus); + i3c_bus_rpm_put(dev->bus); + return ret; } EXPORT_SYMBOL_GPL(i3c_device_do_setdasa); @@ -106,16 +118,27 @@ EXPORT_SYMBOL_GPL(i3c_device_get_info); */ int i3c_device_disable_ibi(struct i3c_device *dev) { - int ret = -ENOENT; + int ret; + + if (i3c_bus_rpm_ibi_allowed(dev->bus)) { + ret = i3c_bus_rpm_get(dev->bus); + if (ret) + return ret; + } i3c_bus_normaluse_lock(dev->bus); if (dev->desc) { mutex_lock(&dev->desc->ibi_lock); ret = i3c_dev_disable_ibi_locked(dev->desc); mutex_unlock(&dev->desc->ibi_lock); + } else { + ret = -ENOENT; } i3c_bus_normaluse_unlock(dev->bus); + if (!ret || i3c_bus_rpm_ibi_allowed(dev->bus)) + i3c_bus_rpm_put(dev->bus); + return ret; } EXPORT_SYMBOL_GPL(i3c_device_disable_ibi); @@ -135,16 +158,25 @@ EXPORT_SYMBOL_GPL(i3c_device_disable_ibi); */ int i3c_device_enable_ibi(struct i3c_device *dev) { - int ret = -ENOENT; + int ret; + + ret = i3c_bus_rpm_get(dev->bus); + if (ret) + return ret; i3c_bus_normaluse_lock(dev->bus); if (dev->desc) { mutex_lock(&dev->desc->ibi_lock); ret = i3c_dev_enable_ibi_locked(dev->desc); mutex_unlock(&dev->desc->ibi_lock); + } else { + ret = -ENOENT; } i3c_bus_normaluse_unlock(dev->bus); + if (ret || i3c_bus_rpm_ibi_allowed(dev->bus)) + i3c_bus_rpm_put(dev->bus); + return ret; } EXPORT_SYMBOL_GPL(i3c_device_enable_ibi); @@ -163,19 +195,27 @@ EXPORT_SYMBOL_GPL(i3c_device_enable_ibi); int i3c_device_request_ibi(struct i3c_device *dev, const struct i3c_ibi_setup *req) { - int ret = -ENOENT; + int ret; if (!req->handler || !req->num_slots) return -EINVAL; + ret = i3c_bus_rpm_get(dev->bus); + if (ret) + return ret; + i3c_bus_normaluse_lock(dev->bus); if (dev->desc) { mutex_lock(&dev->desc->ibi_lock); ret = i3c_dev_request_ibi_locked(dev->desc, req); mutex_unlock(&dev->desc->ibi_lock); + } else { + ret = -ENOENT; } i3c_bus_normaluse_unlock(dev->bus); + i3c_bus_rpm_put(dev->bus); + return ret; } EXPORT_SYMBOL_GPL(i3c_device_request_ibi); |