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| author | Linus Walleij <linus.walleij@linaro.org> | 2011-10-03 09:30:20 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2011-10-03 09:34:16 +0200 |
| commit | b1e3be0647fec81887e55edbda0c56c0445f7b53 (patch) | |
| tree | f45cf420afccc005b46bb24d4fc3e731b9d434ae | |
| parent | bb219dba0d1e46324ea462ba42f6fd8e9b7471de (diff) | |
| download | linux-stable-b1e3be0647fec81887e55edbda0c56c0445f7b53.tar.gz linux-stable-b1e3be0647fec81887e55edbda0c56c0445f7b53.tar.bz2 linux-stable-b1e3be0647fec81887e55edbda0c56c0445f7b53.zip | |
clocksource: fixup ux500 build problems
Based on a patch from Arnd Bergmann this fixes up the build
problem of assigning a non-existing global when the ux500 PRCMU
timer is not linked in by passing its base address to the init
function. We also add a missing <linux/errno.h> inclusion and
staticize the dummy function.
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
| -rw-r--r-- | arch/arm/mach-ux500/timer.c | 9 | ||||
| -rw-r--r-- | drivers/clocksource/clksrc-dbx500-prcmu.c | 6 | ||||
| -rw-r--r-- | include/linux/clksrc-dbx500-prcmu.h | 6 |
3 files changed, 12 insertions, 9 deletions
diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c index 08c55a53cb83..aea467d04ff7 100644 --- a/arch/arm/mach-ux500/timer.c +++ b/arch/arm/mach-ux500/timer.c @@ -5,6 +5,7 @@ * Author: Mattias Wallin <mattias.wallin@stericsson.com> for ST-Ericsson */ #include <linux/io.h> +#include <linux/errno.h> #include <linux/clksrc-dbx500-prcmu.h> #include <asm/localtimer.h> @@ -16,18 +17,20 @@ static void __init ux500_timer_init(void) { + void __iomem *prcmu_timer_base; + if (cpu_is_u5500()) { #ifdef CONFIG_LOCAL_TIMERS twd_base = __io_address(U5500_TWD_BASE); #endif mtu_base = __io_address(U5500_MTU0_BASE); - clksrc_dbx500_timer_base = __io_address(U5500_PRCMU_TIMER_3_BASE); + prcmu_timer_base = __io_address(U5500_PRCMU_TIMER_3_BASE); } else if (cpu_is_u8500()) { #ifdef CONFIG_LOCAL_TIMERS twd_base = __io_address(U8500_TWD_BASE); #endif mtu_base = __io_address(U8500_MTU0_BASE); - clksrc_dbx500_timer_base = __io_address(U8500_PRCMU_TIMER_4_BASE); + prcmu_timer_base = __io_address(U8500_PRCMU_TIMER_4_BASE); } else { ux500_unknown_soc(); } @@ -50,7 +53,7 @@ static void __init ux500_timer_init(void) */ nmdk_timer_init(); - clksrc_dbx500_prcmu_init(); + clksrc_dbx500_prcmu_init(prcmu_timer_base); } static void ux500_timer_reset(void) diff --git a/drivers/clocksource/clksrc-dbx500-prcmu.c b/drivers/clocksource/clksrc-dbx500-prcmu.c index 0ac5093a053a..59feefe0e3e6 100644 --- a/drivers/clocksource/clksrc-dbx500-prcmu.c +++ b/drivers/clocksource/clksrc-dbx500-prcmu.c @@ -31,7 +31,7 @@ #define SCHED_CLOCK_MIN_WRAP 131072 /* 2^32 / 32768 */ -void __iomem *clksrc_dbx500_timer_base; +static void __iomem *clksrc_dbx500_timer_base; static cycle_t clksrc_dbx500_prcmu_read(struct clocksource *cs) { @@ -79,8 +79,10 @@ static void notrace clksrc_dbx500_prcmu_update_sched_clock(void) } #endif -void __init clksrc_dbx500_prcmu_init(void) +void __init clksrc_dbx500_prcmu_init(void __iomem *base) { + clksrc_dbx500_timer_base = base; + /* * The A9 sub system expects the timer to be configured as * a continous looping timer. diff --git a/include/linux/clksrc-dbx500-prcmu.h b/include/linux/clksrc-dbx500-prcmu.h index d1e95042408b..4fb8119c49e4 100644 --- a/include/linux/clksrc-dbx500-prcmu.h +++ b/include/linux/clksrc-dbx500-prcmu.h @@ -11,12 +11,10 @@ #include <linux/init.h> #include <linux/io.h> -extern void __iomem *clksrc_dbx500_timer_base; - #ifdef CONFIG_CLKSRC_DBX500_PRCMU -void __init clksrc_dbx500_prcmu_init(void); +void __init clksrc_dbx500_prcmu_init(void __iomem *base); #else -void __init clksrc_dbx500_prcmu_init(void) {} +static inline void __init clksrc_dbx500_prcmu_init(void __iomem *base) {} #endif #endif |