linux-kernel - [PATCH] ARM: shmobile: compile drivers/sh for CONFIG_ARCH_SHMOBILE

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Date:	Sat, 11 Jan 2014 13:06:29 +0000
From:	Ben Dooks <ben.dooks@...ethink.co.uk>
To:	linux-kernel@...ts.codethink.co.uk
Cc:	Ben Dooks <ben.dooks@...ethink.co.uk>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	Linus SH list <linux-sh@...r.kernel.org>,
	Simon Horman <horms@...ge.net.au>,
	Magnus Damm <magnus.damm@...il.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH] ARM: shmobile: compile drivers/sh for CONFIG_ARCH_SHMOBILE_MULTI

If the kernel is built to support multi-arm configurmation with shmobile
support built in, then the drivers/sh is not built. This contains drivers
that are essential to devices support by that configuration, including the
PM runtime code in drivers/sh/pm_runtime.c (which implicitly enables the
bus clocks for all devices).

If CONFIG_ARCH_SHMOBILE_MULTI then build the drivers/sh directory,
but ensure that bits that may conflict (drivers/sh/clk if the common
clock framework is not enabled) are built.

The ARCH_SHMOBILE_MULTI was added by efacfce5f8a ("ARM: shmobile: Introduce
ARCH_SHMOBILE_MULTI") but this has only just recently been found due to
building device-tree only kernels.

Cc: Linux Kernel list <linux-kernel@...r.kernel.org>
Cc: Linus SH list <linux-sh@...r.kernel.org>
Cc: Simon Horman <horms@...ge.net.au>
Cc: Magnus Damm <magnus.damm@...il.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Dooks <ben.dooks@...ethink.co.uk>
---
 drivers/Makefile    | 1 +
 drivers/sh/Makefile | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/drivers/Makefile b/drivers/Makefile
index 8e3b8b0..abc4744 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -118,6 +118,7 @@ obj-$(CONFIG_SGI_SN)		+= sn/
 obj-y				+= firmware/
 obj-$(CONFIG_CRYPTO)		+= crypto/
 obj-$(CONFIG_SUPERH)		+= sh/
+obj-$(CONFIG_ARCH_SHMOBILE_MULTI)	+= sh/
 obj-$(CONFIG_ARCH_SHMOBILE_LEGACY)	+= sh/
 ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
 obj-y				+= clocksource/
diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile
index fc67f56..86604a5 100644
--- a/drivers/sh/Makefile
+++ b/drivers/sh/Makefile
@@ -3,7 +3,10 @@
 #
 obj-y	:= intc/
 
+ifeq ($(CONFIG_COMMON_CLK),n)
 obj-$(CONFIG_HAVE_CLK)		+= clk/
+endif
+
 obj-$(CONFIG_MAPLE)		+= maple/
 obj-$(CONFIG_SUPERHYWAY)	+= superhyway/
 
-- 
1.8.5.2

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