intel_adsp: Use device tree to enable/disable each HDA driver

Uses the dt_compat_enabled Kconfig preprocessor to set defaults
for each HDA driver.

Each direction is uniquely selectable which can be useful when building
with SOF where only some directions may wish to be enabled at any given
time.

By default, given the device tree (intel_cavs.dtsi) only the host
directions are enabled but an overlay may adjust that as needed.

Signed-off-by: Tom Burdick <[email protected]>

Author: teburd

drivers/dma/CMakeLists.txt

@@ -17,5 +17,8 @@ zephyr_library_sources_ifdef(CONFIG_DMA_PL330		dma_pl330.c)
 zephyr_library_sources_ifdef(CONFIG_DMA_IPROC_PAX	dma_iproc_pax_v1.c)
 zephyr_library_sources_ifdef(CONFIG_DMA_IPROC_PAX_V2	dma_iproc_pax_v2.c)
 zephyr_library_sources_ifdef(CONFIG_DMA_CAVS_GPDMA	dma_cavs_gpdma.c dma_dw_common.c)
-zephyr_library_sources_ifdef(CONFIG_DMA_CAVS_HDA	dma_cavs_hda.c dma_cavs_hda_host_in.c dma_cavs_hda_host_out.c
-													dma_cavs_hda_link_in.c dma_cavs_hda_link_out.c)
+zephyr_library_sources_ifdef(CONFIG_DMA_CAVS_HDA dma_cavs_hda.c)
+zephyr_library_sources_ifdef(CONFIG_DMA_CAVS_HDA_HOST_IN dma_cavs_hda_host_in.c)
+zephyr_library_sources_ifdef(CONFIG_DMA_CAVS_HDA_HOST_OUT dma_cavs_hda_host_out.c)
+zephyr_library_sources_ifdef(CONFIG_DMA_CAVS_HDA_LINK_IN dma_cavs_hda_link_in.c)
+zephyr_library_sources_ifdef(CONFIG_DMA_CAVS_HDA_LINK_OUT dma_cavs_hda_link_out.c)

drivers/dma/Kconfig.cavs_hda

@@ -3,7 +3,45 @@
 # Copyright (c) 2022 Intel Corporation
 # SPDX-License-Identifier: Apache-2.0
 
+DT_COMPAT_INTEL_CAVS_HDA_HOST_IN := intel,cavs-hda-host-in
+DT_COMPAT_INTEL_CAVS_HDA_HOST_OUT := intel,cavs-hda-host-out
+DT_COMPAT_INTEL_CAVS_HDA_LINK_IN := intel,cavs-hda-link-in
+DT_COMPAT_INTEL_CAVS_HDA_LINK_OUT := intel,cavs-hda-link-out
+
+config DMA_CAVS_HDA_HOST_IN
+	bool "Intel cAVS HDA Host In DMA drivers"
+	default $(dt_compat_enabled,$(DT_COMPAT_INTEL_CAVS_HDA_HOST_IN))
+	depends on DMA
+	select DMA_CAVS_HDA
+	help
+	  Intel cAVS Host HDA DMA driver.
+
+config DMA_CAVS_HDA_HOST_OUT
+	bool "Intel cAVS HDA Host Out DMA drivers"
+	default $(dt_compat_enabled,$(DT_COMPAT_INTEL_CAVS_HDA_HOST_OUT))
+	depends on DMA
+	select DMA_CAVS_HDA
+	help
+	  Intel cAVS Host HDA DMA driver.
+
+config DMA_CAVS_HDA_LINK_IN
+	bool "Intel cAVS HDA Link In DMA drivers"
+	default $(dt_compat_enabled,$(DT_COMPAT_INTEL_CAVS_HDA_LINK_IN))
+	depends on DMA
+	select DMA_CAVS_HDA
+	help
+	  Intel cAVS Link In HDA DMA driver.
+
+config DMA_CAVS_HDA_LINK_OUT
+	bool "Intel cAVS HDA Link Out DMA drivers"
+	default $(dt_compat_enabled,$(DT_COMPAT_INTEL_CAVS_HDA_LINK_OUT))
+	depends on DMA
+	select DMA_CAVS_HDA
+	help
+	  Intel cAVS Link Out HDA DMA driver.
+
 config DMA_CAVS_HDA
-	bool "Intel cAVS HDA DMA driver"
+	bool
+	depends on DMA_CAVS_HDA_LINK_OUT || DMA_CAVS_HDA_LINK_IN || DMA_CAVS_HDA_HOST_OUT || DMA_CAVS_HDA_HOST_IN
 	help
 	  Intel cAVS HDA DMA driver.

dts/xtensa/intel/intel_cavs.dtsi

@@ -40,7 +40,7 @@
 			dma-buf-alignment = <128>;
 			label = "HDA_LINK_OUT";
 
-			status = "okay";
+			status = "disabled";
 		};
 
 		hda_link_in: dma@72600 {
@@ -51,7 +51,7 @@
 			dma-buf-alignment = <128>;
 			label = "HDA_LINK_IN";
 
-			status = "okay";
+			status = "disabled";
 		};
 
 		hda_host_out: dma@72800 {

soc/xtensa/intel_adsp/Kconfig.defconfig

@@ -19,10 +19,6 @@ config DMA_CAVS_GPDMA
 	default y
 	depends on DMA
 
-config DMA_CAVS_HDA
-	default y
-	depends on DMA
-
 config XTENSA_CCOUNT_HZ
 	default 400000000 if SOC_SERIES_INTEL_CAVS_V25
 	default 200000000

subsys/logging/Kconfig.backends

@@ -335,7 +335,7 @@ endif # LOG_BACKEND_ADSP
 
 config LOG_BACKEND_CAVS_HDA
 	bool "cAVS HDA backend"
-	depends on SOC_FAMILY_INTEL_ADSP && DMA && DMA_CAVS_HDA
+	depends on SOC_FAMILY_INTEL_ADSP && DMA && DMA_CAVS_HDA_HOST_OUT
 	select LOG_OUTPUT
 	help
 	  Provide a logging backend which writes to a buffer and