diff options
Diffstat (limited to 'drivers/tee/optee/core.c')
| -rw-r--r-- | drivers/tee/optee/core.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/tee/optee/core.c b/drivers/tee/optee/core.c index c75fddc83576..5b62139714ce 100644 --- a/drivers/tee/optee/core.c +++ b/drivers/tee/optee/core.c @@ -56,6 +56,13 @@ int optee_rpmb_intf_rdev(struct notifier_block *intf, unsigned long action, return 0; } +int optee_set_dma_mask(struct optee *optee, u_int pa_width) +{ + u64 mask = DMA_BIT_MASK(min(64, pa_width)); + + return dma_coerce_mask_and_coherent(&optee->teedev->dev, mask); +} + static void optee_bus_scan(struct work_struct *work) { WARN_ON(optee_enumerate_devices(PTA_CMD_GET_DEVICES_SUPP)); @@ -72,7 +79,7 @@ static ssize_t rpmb_routing_model_show(struct device *dev, else s = "user"; - return scnprintf(buf, PAGE_SIZE, "%s\n", s); + return sysfs_emit(buf, "%s\n", s); } static DEVICE_ATTR_RO(rpmb_routing_model); |