linux-kernel - [PATCH v4 6/8] cxl/Kconfig: Default drivers to CONFIG_CXL

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Date:   Thu, 13 May 2021 22:22:16 -0700
From:   Dan Williams <dan.j.williams@...el.com>
To:     linux-cxl@...r.kernel.org
Cc:     Ben Widawsky <ben.widawsky@...el.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>, hch@....de,
        linux-acpi@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v4 6/8] cxl/Kconfig: Default drivers to CONFIG_CXL_BUS

CONFIG_CXL_BUS is default 'n' as expected for new functionality. When
that is enabled do not make the end user hunt for all the expected
sub-options to enable. For example CONFIG_CXL_BUS without CONFIG_CXL_MEM
is an odd/expert configuration, so is CONFIG_CXL_MEM without
CONFIG_CXL_ACPI (on ACPI capable platforms). Default CONFIG_CXL_MEM and
CONFIG_CXL_ACPI to CONFIG_CXL_BUS.

Acked-by: Ben Widawsky <ben.widawsky@...el.com>
Acked-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Link: https://lore.kernel.org/r/162042791307.1202325.2513845748708305095.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@...el.com>
---
 drivers/cxl/Kconfig |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/cxl/Kconfig b/drivers/cxl/Kconfig
index fb282af84afd..1da7970a5e55 100644
--- a/drivers/cxl/Kconfig
+++ b/drivers/cxl/Kconfig
@@ -15,6 +15,7 @@ if CXL_BUS
 
 config CXL_MEM
 	tristate "CXL.mem: Memory Devices"
+	default CXL_BUS
 	help
 	  The CXL.mem protocol allows a device to act as a provider of
 	  "System RAM" and/or "Persistent Memory" that is fully coherent
@@ -54,6 +55,7 @@ config CXL_MEM_RAW_COMMANDS
 config CXL_ACPI
 	tristate "CXL ACPI: Platform Support"
 	depends on ACPI
+	default CXL_BUS
 	help
 	  Enable support for host managed device memory (HDM) resources
 	  published by a platform's ACPI CXL memory layout description.