linux-kernel - [PATCH] arm: enable RapidIO config options in Kconfig

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Message-Id: <20180724134122.86718-1-acolin@isi.edu>
Date:   Tue, 24 Jul 2018 09:41:26 -0400
From:   Alexei Colin <acolin@....edu>
To:     linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Russell King <linux@...linux.org.uk>,
        Arnd Bergmann <arnd@...db.de>
Cc:     Alex Bounine <alex.bou9@...il.com>,
        Barry Wood <barry.wood@....com>,
        John Paul Walters <jwalters@....edu>,
        Alexei Colin <acolin@....edu>
Subject: [PATCH] arm: enable RapidIO config options in Kconfig

ARM SoCs with a PCI bus offer the RapiodIO config menu; SoCs with
RapidIO IP blocks but without a PCI bus, need to add "select
HAS_RAPIDIO" to the Kconfig entry for that SoC (e.g. ARCH_*).

HAS_RAPIDIO was chosen over HAVE_RAPIDIO to be consistent with
other architectures which already define this flag (powerpc).

Signed-off-by: Alexei Colin <acolin@....edu>
---

Tested that kernel builds with RapidIO subsystem and switch drivers enabled.
Maintainers for RapidIO subsystem CCed.
Sending a similar patch to ARM64 maintainers shortly.

 arch/arm/Kconfig | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 843edfd000be..d6267ab33cb5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1274,6 +1274,22 @@ config PCI_HOST_ITE8152
 
 source "drivers/pci/Kconfig"
 
+config HAS_RAPIDIO
+	bool
+	default n
+
+config RAPIDIO
+	tristate "RapidIO support"
+	depends on HAS_RAPIDIO || PCI
+	help
+	  This feature enables support for RapidIO high-performance
+	  packet-switched interconnect.
+
+	  If you say Y here, the kernel will include drivers and
+	  infrastructure code to support RapidIO interconnect devices.
+
+source "drivers/rapidio/Kconfig"
+
 source "drivers/pcmcia/Kconfig"
 
 endmenu
-- 
2.18.0