[PATCH -next v2] Documentation: devres: add missing SPI helper

[Yang Yingliang <yangyingliang@xxxxxxxxxx>]

Add devm_spi_alloc_master() and devm_spi_alloc_slave() to devres.rst.
They are introduced by commit 5e844cc37a5c ("spi: Introduce device-managed
SPI controller allocation").

Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
Reviewed-by: Lukas Wunner <lukas@xxxxxxxxx>
---
v2:
  Put alloc functions above the register function.
---
 Documentation/driver-api/driver-model/devres.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/driver-api/driver-model/devres.rst b/Documentation/driver-api/driver-model/devres.rst
index 2895f9ea00c4..7a3c34214c4c 100644
--- a/Documentation/driver-api/driver-model/devres.rst
+++ b/Documentation/driver-api/driver-model/devres.rst
@@ -436,6 +436,8 @@ SLAVE DMA ENGINE
   devm_acpi_dma_controller_register()
 
 SPI
+  devm_spi_alloc_master()
+  devm_spi_alloc_slave()
   devm_spi_register_master()
 
 WATCHDOG
-- 
2.25.1