diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/firmware/tegra/bpmp.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/firmware/tegra/bpmp.c b/drivers/firmware/tegra/bpmp.c index 73ca55b7b7ec..33683b5a0d48 100644 --- a/drivers/firmware/tegra/bpmp.c +++ b/drivers/firmware/tegra/bpmp.c @@ -194,16 +194,24 @@ static int tegra_bpmp_wait_master_free(struct tegra_bpmp_channel *channel) } static ssize_t __tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, - void *data, size_t size) + void *data, size_t size, int *ret) { + int err; + if (data && size > 0) memcpy(data, channel->ib->data, size); - return tegra_ivc_read_advance(channel->ivc); + err = tegra_ivc_read_advance(channel->ivc); + if (err < 0) + return err; + + *ret = channel->ib->code; + + return 0; } static ssize_t tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, - void *data, size_t size) + void *data, size_t size, int *ret) { struct tegra_bpmp *bpmp = channel->bpmp; unsigned long flags; @@ -217,7 +225,7 @@ static ssize_t tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, } spin_lock_irqsave(&bpmp->lock, flags); - err = __tegra_bpmp_channel_read(channel, data, size); + err = __tegra_bpmp_channel_read(channel, data, size, ret); clear_bit(index, bpmp->threaded.allocated); spin_unlock_irqrestore(&bpmp->lock, flags); @@ -337,7 +345,8 @@ int tegra_bpmp_transfer_atomic(struct tegra_bpmp *bpmp, if (err < 0) return err; - return __tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size); + return __tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size, + &msg->rx.ret); } EXPORT_SYMBOL_GPL(tegra_bpmp_transfer_atomic); @@ -371,7 +380,8 @@ int tegra_bpmp_transfer(struct tegra_bpmp *bpmp, if (err == 0) return -ETIMEDOUT; - return tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size); + return tegra_bpmp_channel_read(channel, msg->rx.data, msg->rx.size, + &msg->rx.ret); } EXPORT_SYMBOL_GPL(tegra_bpmp_transfer); |