soc/intel/.../hda: Add and use config for initialization of HDA codecs

Config option SOC_INTEL_COMMON_BLOCK_HDA is currently used for
initialization of HDA codecs only. This prevents adding of any static
devices under the HDA device node. However, there can be boards which
want to add devices under HDA node (e.g. nocturne that wants to
provide DMIC properties to OS) without performing any codec
initialization using the HDA. This change:

1. Adds a new config option SOC_INTEL_COMMON_BLOCK_HDA_VERB that can
be set explicitly by the boards that want to perform codec
initialization.

2. Uses newly added config option is used to guard the initialization
functions for the codec. Rest of the device operations can still be
used by all the other boards without having to use HDA codec
initialization.

3. Selects the newly added option SOC_INTEL_COMMON_BLOCK_HDA_VERB in
kblrvp which is the only board enabling HDA codec initialization
using common block code.

4. Selects original config SOC_INTEL_COMMON_BLOCK_HDA for skylake SoC.

Above changes need to be bundled and pushed in as a single change in
order to avoid breaking existing users.

BUG=b:112888584

Change-Id: Ie6f39c13a801833b283120a2d4b6f6175688999c
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/28806
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/intel/kblrvp/Kconfig

@@ -8,7 +8,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select HAVE_ACPI_TABLES
 	select HAVE_OPTION_TABLE
 	select HAVE_SMI_HANDLER
-	select SOC_INTEL_COMMON_BLOCK_HDA if BOARD_INTEL_KBLRVP3 || BOARD_INTEL_KBLRVP7
+	select SOC_INTEL_COMMON_BLOCK_HDA_VERB if BOARD_INTEL_KBLRVP3 || BOARD_INTEL_KBLRVP7
 	select SOC_INTEL_SKYLAKE
 	select SKYLAKE_SOC_PCH_H if BOARD_INTEL_KBLRVP8
 	select MAINBOARD_USES_FSP2_0

src/soc/intel/common/block/hda/Kconfig

@@ -2,3 +2,9 @@ config SOC_INTEL_COMMON_BLOCK_HDA
 	bool
 	help
 	  Intel Processor common High Definition Audio driver support
+
+config SOC_INTEL_COMMON_BLOCK_HDA_VERB
+	bool
+	depends on SOC_INTEL_COMMON_BLOCK_HDA
+	help
+	  Enable initialization of HDA codecs.

src/soc/intel/common/block/hda/hda.c

@@ -22,6 +22,7 @@
 #include <soc/intel/common/hda_verb.h>
 #include <soc/ramstage.h>
 
+#if IS_ENABLED(CONFIG_SOC_INTEL_COMMON_BLOCK_HDA_VERB)
 static void codecs_init(uint8_t *base, u32 codec_mask)
 {
 	int i;
@@ -57,12 +58,15 @@ static void hda_init(struct device *dev)
 		codecs_init(base, codec_mask);
 	}
 }
+#endif
 
 static struct device_operations hda_ops = {
 	.read_resources		= &pci_dev_read_resources,
 	.set_resources		= &pci_dev_set_resources,
 	.enable_resources	= &pci_dev_enable_resources,
+#if IS_ENABLED(CONFIG_SOC_INTEL_COMMON_BLOCK_HDA_VERB)
 	.init			= &hda_init,
+#endif
 	.ops_pci		= &pci_dev_ops_pci,
 };
 

src/soc/intel/skylake/Kconfig

@@ -61,6 +61,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_GPIO_LEGACY_MACROS
 	select SOC_INTEL_COMMON_BLOCK_GPIO_PADCFG_PADTOL
 	select SOC_INTEL_COMMON_BLOCK_GSPI
+	select SOC_INTEL_COMMON_BLOCK_HDA
 	select SOC_INTEL_COMMON_BLOCK_SA
 	select SOC_INTEL_COMMON_BLOCK_SGX
 	select SOC_INTEL_COMMON_BLOCK_SMM