drivers: spi: smartbond: Add async API support

This commit should deal with adding support for asynchronous operations. It also adds support for DMA acceleration via a Kconfig variable (enaled by default as DMA should be considered scales faster than the interrupt-driven approach). Signed-off-by: Ioannis Karachalios <[email protected]>
zephyrproject-rtos · Jun 6, 2024 · 3e061d6 · 3e061d6
1 parent 7bf6e8b
commit 3e061d6
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Showing 2 changed files with 898 additions and 13 deletions.
diff --git a/drivers/spi/Kconfig.smartbond b/drivers/spi/Kconfig.smartbond
@@ -7,3 +7,14 @@ config SPI_SMARTBOND
 	depends on DT_HAS_RENESAS_SMARTBOND_SPI_ENABLED
 	help
 	  Enables SPI driver for Renesas SmartBond(tm) DA1469x series MCU.
+
+config SPI_SMARTBOND_DMA
+	bool "Renesas Smartbond(tm) SPI with DMA acceleration"
+	default y
+	depends on SPI_ASYNC
+	depends on SPI_SMARTBOND
+	select DMA
+	help
+	  Enables using the DMA engine instead of interrupt-driven
+	  approach. This acceleration is available only for
+	  asynchronous transfers.