linux-kernel - [PATCH 1/2] memory: move jedec_ddr_data.c from lib/ to drivers/memory/

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Date:   Thu, 16 May 2019 00:04:05 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     Santosh Shilimkar <ssantosh@...nel.org>
Cc:     Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] memory: move jedec_ddr_data.c from lib/ to drivers/memory/

jedec_ddr_data.c exports the lpddr2_jedec_* symbols, and all of them
are only referenced from drivers/memory/{emif.c,of_memory.c}

drivers/memory/ is a better location than lib/.

I removed the Kconfig prompt "JEDEC DDR data" because it is only
select'ed by TI_EMIF, and there is no other user. There is no good
reason in making it a user-configurable CONFIG option.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 drivers/memory/Kconfig                   | 8 ++++++++
 drivers/memory/Makefile                  | 1 +
 {lib => drivers/memory}/jedec_ddr_data.c | 0
 lib/Kconfig                              | 8 --------
 lib/Makefile                             | 2 --
 5 files changed, 9 insertions(+), 10 deletions(-)
 rename {lib => drivers/memory}/jedec_ddr_data.c (100%)

diff --git a/drivers/memory/Kconfig b/drivers/memory/Kconfig
index 2d91b00..fa17b3e 100644
--- a/drivers/memory/Kconfig
+++ b/drivers/memory/Kconfig
@@ -7,6 +7,14 @@ menuconfig MEMORY
 
 if MEMORY
 
+config DDR
+	bool
+	help
+	  Data from JEDEC specs for DDR SDRAM memories,
+	  particularly the AC timing parameters and addressing
+	  information. This data is useful for drivers handling
+	  DDR SDRAM controllers.
+
 config ARM_PL172_MPMC
 	tristate "ARM PL172 MPMC driver"
 	depends on ARM_AMBA && OF
diff --git a/drivers/memory/Makefile b/drivers/memory/Makefile
index 91ae4eb..9d5c409 100644
--- a/drivers/memory/Makefile
+++ b/drivers/memory/Makefile
@@ -3,6 +3,7 @@
 # Makefile for memory devices
 #
 
+obj-$(CONFIG_DDR)		+= jedec_ddr_data.o
 ifeq ($(CONFIG_DDR),y)
 obj-$(CONFIG_OF)		+= of_memory.o
 endif
diff --git a/lib/jedec_ddr_data.c b/drivers/memory/jedec_ddr_data.c
similarity index 100%
rename from lib/jedec_ddr_data.c
rename to drivers/memory/jedec_ddr_data.c
diff --git a/lib/Kconfig b/lib/Kconfig
index 3577609..473f937 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -530,14 +530,6 @@ config LRU_CACHE
 config CLZ_TAB
 	bool
 
-config DDR
-	bool "JEDEC DDR data"
-	help
-	  Data from JEDEC specs for DDR SDRAM memories,
-	  particularly the AC timing parameters and addressing
-	  information. This data is useful for drivers handling
-	  DDR SDRAM controllers.
-
 config IRQ_POLL
 	bool "IRQ polling library"
 	help
diff --git a/lib/Makefile b/lib/Makefile
index fb76970..cb66bc9 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -206,8 +206,6 @@ obj-$(CONFIG_SIGNATURE) += digsig.o
 
 lib-$(CONFIG_CLZ_TAB) += clz_tab.o
 
-obj-$(CONFIG_DDR) += jedec_ddr_data.o
-
 obj-$(CONFIG_GENERIC_STRNCPY_FROM_USER) += strncpy_from_user.o
 obj-$(CONFIG_GENERIC_STRNLEN_USER) += strnlen_user.o
 
-- 
2.7.4