diff options
Diffstat (limited to 'dts/Bindings/mailbox/nvidia,tegra186-hsp.yaml')
| -rw-r--r-- | dts/Bindings/mailbox/nvidia,tegra186-hsp.yaml | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/dts/Bindings/mailbox/nvidia,tegra186-hsp.yaml b/dts/Bindings/mailbox/nvidia,tegra186-hsp.yaml index 9f7a7296b5..a3e87516d6 100644 --- a/dts/Bindings/mailbox/nvidia,tegra186-hsp.yaml +++ b/dts/Bindings/mailbox/nvidia,tegra186-hsp.yaml @@ -26,6 +26,15 @@ description: | second cell is used to identify the mailbox that the client is going to use. + For shared mailboxes, the first cell composed of two fields: + - bits 15..8: + A bit mask of flags that further specifies the type of shared + mailbox to be used (based on the data size). If no flag is + specified then, 32-bit shared mailbox is used. + - bits 7..0: + Defines the type of the mailbox to be used. This field should be + TEGRA_HSP_MBOX_TYPE_SM for shared mailboxes. + For doorbells, the second cell specifies the index of the doorbell to use. |