linux-kernel - [PATCH v2 4/4] sh: remove board_time

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Message-Id: <20180724213624.3899336-4-arnd@arndb.de>
Date:   Tue, 24 Jul 2018 23:36:24 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     dalias@...c.org
Cc:     ysato@...rs.sourceforge.jp, baolin.wang@...aro.org,
        y2038@...ts.linaro.org, linux-sh@...r.kernel.org,
        linux-kernel@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: [PATCH v2 4/4] sh: remove board_time_init() callback

The only remaining user of board_time_init() is the of-generic
machine, and that just calls the global timer_init() function.
Calling that one has no effect on non-DT platforms, so we can
simply call it unconditionally in place of board_time_init().

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
v2: fix a typo as pointed out by the kbuild bot
---
 Documentation/sh/new-machine.txt | 8 --------
 arch/sh/boards/of-generic.c      | 8 --------
 arch/sh/include/asm/rtc.h        | 1 -
 arch/sh/kernel/time.c            | 5 +----
 4 files changed, 1 insertion(+), 21 deletions(-)

diff --git a/Documentation/sh/new-machine.txt b/Documentation/sh/new-machine.txt
index f0354164cb0e..e0961a66130b 100644
--- a/Documentation/sh/new-machine.txt
+++ b/Documentation/sh/new-machine.txt
@@ -116,7 +116,6 @@ might look something like:
  * arch/sh/boards/vapor/setup.c - Setup code for imaginary board
  */
 #include <linux/init.h>
-#include <asm/rtc.h> /* for board_time_init() */
 
 const char *get_system_type(void)
 {
@@ -132,13 +131,6 @@ int __init platform_setup(void)
 	 * this board.
 	 */
 
-  	/* 
-	 * Presume all FooTech boards have the same broken timer,
-	 * and also presume that we've defined foo_timer_init to
-	 * do something useful.
-	 */
-  	board_time_init = foo_timer_init;
-
 	/* Start-up imaginary PCI ... */
 
 	/* And whatever else ... */
diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c
index 26789ad28193..04d9a666f924 100644
--- a/arch/sh/boards/of-generic.c
+++ b/arch/sh/boards/of-generic.c
@@ -117,18 +117,10 @@ static void __init sh_of_mem_reserve(void)
 	early_init_fdt_scan_reserved_mem();
 }
 
-static void __init sh_of_time_init(void)
-{
-	pr_info("SH generic board support: scanning for clocksource devices\n");
-	timer_probe();
-}
-
 static void __init sh_of_setup(char **cmdline_p)
 {
 	struct device_node *root;
 
-	board_time_init = sh_of_time_init;
-
 	sh_mv.mv_name = "Unknown SH model";
 	root = of_find_node_by_path("/");
 	if (root) {
diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
index fe55fbb181aa..69dbae2949b0 100644
--- a/arch/sh/include/asm/rtc.h
+++ b/arch/sh/include/asm/rtc.h
@@ -3,7 +3,6 @@
 #define _ASM_RTC_H
 
 void time_init(void);
-extern void (*board_time_init)(void);
 
 #define RTC_CAP_4_DIGIT_YEAR	(1 << 0)
 
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index eb0a91270499..8a1c6c8ab4ec 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -22,8 +22,6 @@
 #include <asm/clock.h>
 #include <asm/rtc.h>
 
-void (*board_time_init)(void);
-
 static void __init sh_late_time_init(void)
 {
 	/*
@@ -41,8 +39,7 @@ static void __init sh_late_time_init(void)
 
 void __init time_init(void)
 {
-	if (board_time_init)
-		board_time_init();
+	timer_probe();
 
 	clk_init();
 
-- 
2.18.0