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authorKartik <kkartik@nvidia.com>2022-04-14 10:35:56 +0300
committerJassi Brar <jaswinder.singh@linaro.org>2022-05-21 19:41:30 +0300
commit58919326e72f63c380dc3271dd1cc8bdf1bbe3e4 (patch)
treeacd829fbdf33e5625b42a336a0d0a34dea4b64fd /include/dt-bindings/mailbox
parent8f585d14030dcf8fbec2f864d189515e8be37a80 (diff)
downloadlinux-58919326e72f63c380dc3271dd1cc8bdf1bbe3e4.tar.xz
dt-bindings: tegra186-hsp: add type for shared mailboxes
Tegra234 supports sending/receiving 32-bit and 128-bit data over a shared mailbox. Based on the data size to be used, clients need to specify the type of shared mailbox in the device tree. Add a macro for 128-bit shared mailbox. Mailbox clients can use this macro as a flag in device tree to enable 128-bit data support for a shared mailbox. Signed-off-by: Kartik <kkartik@nvidia.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Diffstat (limited to 'include/dt-bindings/mailbox')
-rw-r--r--include/dt-bindings/mailbox/tegra186-hsp.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/dt-bindings/mailbox/tegra186-hsp.h b/include/dt-bindings/mailbox/tegra186-hsp.h
index 3bdec7a84d35..b9ccae2aa9e2 100644
--- a/include/dt-bindings/mailbox/tegra186-hsp.h
+++ b/include/dt-bindings/mailbox/tegra186-hsp.h
@@ -16,6 +16,11 @@
#define TEGRA_HSP_MBOX_TYPE_AS 0x3
/*
+ * These define the types of shared mailbox supported based on data size.
+ */
+#define TEGRA_HSP_MBOX_TYPE_SM_128BIT (1 << 8)
+
+/*
* These defines represent the bit associated with the given master ID in the
* doorbell registers.
*/