linux-kernel - [PATCH V2] arm: mmp: build sram driver alone

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Date:	Thu, 5 Dec 2013 09:36:21 +0800
From:	Qiao Zhou <zhouqiao@...vell.com>
To:	<eric.y.miao@...il.com>, <haojian.zhuang@...il.com>,
	<dan.j.williams@...el.com>, <vinod.koul@...el.com>,
	<linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>,
	<chao.xie@...vell.com>
CC:	Qiao Zhou <zhouqiao@...vell.com>
Subject: [PATCH V2] arm: mmp: build sram driver alone

sram driver can be used by many chips besides CPU_MMP2, and so build
it alone. Also need to select MMP_SRAM for MMP_TDMA driver.

Reported-by: Dan Williams <dan.j.williams@...el.com>
Signed-off-by: Qiao Zhou <zhouqiao@...vell.com>
---
 arch/arm/mach-mmp/Kconfig  |    3 +++
 arch/arm/mach-mmp/Makefile |    3 ++-
 drivers/dma/Kconfig        |    2 ++
 3 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig
index ebdda83..ebdba87 100644
--- a/arch/arm/mach-mmp/Kconfig
+++ b/arch/arm/mach-mmp/Kconfig
@@ -136,4 +136,7 @@ config USB_EHCI_MV_U2O
 	help
 	  Enables support for OTG controller which can be switched to host mode.
 
+config MMP_SRAM
+	bool
+
 endif
diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile
index 9b702a1..98f0f63 100644
--- a/arch/arm/mach-mmp/Makefile
+++ b/arch/arm/mach-mmp/Makefile
@@ -7,7 +7,8 @@ obj-y				+= common.o devices.o time.o
 # SoC support
 obj-$(CONFIG_CPU_PXA168)	+= pxa168.o
 obj-$(CONFIG_CPU_PXA910)	+= pxa910.o
-obj-$(CONFIG_CPU_MMP2)		+= mmp2.o sram.o
+obj-$(CONFIG_CPU_MMP2)		+= mmp2.o
+obj-$(CONFIG_MMP_SRAM)		+= sram.o
 
 ifeq ($(CONFIG_COMMON_CLK), )
 obj-y				+= clock.o
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index dd2874e..599f0ae 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -288,9 +288,11 @@ config MMP_TDMA
 	bool "MMP Two-Channel DMA support"
 	depends on ARCH_MMP
 	select DMA_ENGINE
+	select MMP_SRAM
 	help
 	  Support the MMP Two-Channel DMA engine.
 	  This engine used for MMP Audio DMA and pxa910 SQU.
+	  It needs sram driver under mach-mmp.
 
 	  Say Y here if you enabled MMP ADMA, otherwise say N.
 
-- 
1.7.0.4

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