linux-kernel - [PATCH] drivers/clocksource/Kconfig: Let SH_TIMER_CMT depend on HAS

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Message-ID: <542D546C.8030205@gmail.com>
Date:	Thu, 02 Oct 2014 21:34:36 +0800
From:	Chen Gang <gang.chen.5i5j@...il.com>
To:	daniel.lezcano@...aro.org, tglx@...utronix.de
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"richard@....at >> Richard Weinberger" <richard@....at>
Subject: [PATCH] drivers/clocksource/Kconfig: Let SH_TIMER_CMT depend on HAS_IOMEM

SH_TIMER_CMT will use IO memory features which needs HAS_IOMEM, so need
depend on it. The related error (with allmodconfig under um):

    CC      drivers/clocksource/sh_cmt.o
  drivers/clocksource/sh_cmt.c: In function 'sh_cmt_map_memory':
  drivers/clocksource/sh_cmt.c:920:2: error: implicit declaration of function 'ioremap_nocache' [-Werror=implicit-function-declaration]
    cmt->mapbase = ioremap_nocache(mem->start, resource_size(mem));
    ^
  drivers/clocksource/sh_cmt.c:920:15: warning: assignment makes pointer from integer without a cast [enabled by default]
    cmt->mapbase = ioremap_nocache(mem->start, resource_size(mem));
                 ^
  drivers/clocksource/sh_cmt.c: In function 'sh_cmt_setup':
  drivers/clocksource/sh_cmt.c:1034:2: error: implicit declaration of function 'iounmap' [-Werror=implicit-function-declaration]
    iounmap(cmt->mapbase);
    ^

Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
---
 drivers/clocksource/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 82a2ebe..ee8aeeb 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -172,7 +172,7 @@ config SYS_SUPPORTS_EM_STI
 
 config SH_TIMER_CMT
 	bool "Renesas CMT timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
+	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
 	default SYS_SUPPORTS_SH_CMT
 	help
 	  This enables build of a clocksource and clockevent driver for
-- 
1.9.3
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