drivers: spi: Add Intel SPI penwell driver

Added support for intel pch penwell spi driver.

Signed-off-by: Ramesh Babu B <[email protected]>

Author: rbabub

drivers/spi/CMakeLists.txt

@@ -35,6 +35,7 @@ zephyr_library_sources_ifdef(CONFIG_SPI_PL022		spi_pl022.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_ANDES_ATCSPI200	spi_andes_atcspi200.c)
 zephyr_library_sources_ifdef(CONFIG_NXP_S32_SPI spi_nxp_s32.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_XMC4XXX     spi_xmc4xxx.c)
+zephyr_library_sources_ifdef(CONFIG_SPI_PW		spi_pw.c)
 
 zephyr_library_sources_ifdef(CONFIG_SPI_ASYNC spi_signal.c)
 zephyr_library_sources_ifdef(CONFIG_USERSPACE		spi_handlers.c)

drivers/spi/Kconfig

@@ -109,4 +109,6 @@ source "drivers/spi/Kconfig.nxp_s32"
 
 source "drivers/spi/Kconfig.xmc4xxx"
 
+source "drivers/spi/Kconfig.pw"
+
 endif # SPI

drivers/spi/Kconfig.pw

@@ -0,0 +1,18 @@
+# Copyright (c) 2023 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+menuconfig SPI_PW
+	bool "Penwell SPI driver"
+	default y
+	depends on DT_HAS_INTEL_PENWELL_SPI_ENABLED
+	help
+	  Enable the Penwell SPI driver.
+
+if SPI_PW
+
+config SPI_PW_INTERRUPT
+	bool "Penwell SPI Interrupt mode Support"
+	help
+	  Enable Interrupt support for the SPI Driver.
+
+endif # SPI_PW