From patchwork Wed Nov 28 02:15:13 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [1/3] ARM: OMAP2+: Fix realtime_counter_init warning in timer.c From: "Hunter, Jon" X-Patchwork-Id: 202355 Message-Id: <1354068915-3378-2-git-send-email-jon-hunter@ti.com> To: Tony Lindgren Cc: linux-omap , Santosh Shilimkar , Jon Hunter , linux-arm Date: Tue, 27 Nov 2012 20:15:13 -0600 In commit fa6d79d (ARM: OMAP: Add initialisation for the real-time counter), the function realtime_counter_init() was added. However, if the kernel configuration option CONFIG_SOC_OMAP5 is not selected then the following compiler warning is observed. CC arch/arm/mach-omap2/timer.o arch/arm/mach-omap2/timer.c:489:20: warning: ‘realtime_counter_init’ defined but not used [-Wunused-function] Commit fa6d79d also introduced the kernel configuration option CONFIG_SOC_HAS_REALTIME_COUNTER. If this option is not selected then the a stub function for realtime_counter_init() is defined. The option CONFIG_SOC_HAS_REALTIME_COUNTER and stub function are not really needed because ... 1. For non-OMAP5 devices, there is no realtime counter and so realtime_counter_init() function is not used. 2. For OMAP5 devices, CONFIG_SOC_HAS_REALTIME_COUNTER is always selected and cannot be disabled, so the stub function for realtime_counter_init() is never used. Fix this warning by removing the kernel configuration option CONFIG_SOC_HAS_REALTIME_COUNTER and stub function, and only include the function realtime_counter_init() if CONFIG_SOC_OMAP5 is selected. Cc: Santosh Shilimkar Reported-by: Tony Lindgren Signed-off-by: Jon Hunter --- arch/arm/mach-omap2/Kconfig | 4 ---- arch/arm/mach-omap2/timer.c | 7 ++----- 2 files changed, 2 insertions(+), 9 deletions(-) diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 813c267..ea88b7d 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -24,9 +24,6 @@ config ARCH_OMAP2PLUS_TYPICAL config SOC_HAS_OMAP2_SDRC bool "OMAP2 SDRAM Controller support" -config SOC_HAS_REALTIME_COUNTER - bool "Real time free running counter" - config ARCH_OMAP2 bool "TI OMAP2" depends on ARCH_OMAP2PLUS @@ -79,7 +76,6 @@ config SOC_OMAP5 select ARM_GIC select CPU_V7 select HAVE_SMP - select SOC_HAS_REALTIME_COUNTER select COMMON_CLK comment "OMAP Core Type" diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index b9cff72..a9f99e3 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -476,7 +476,7 @@ static void __init omap2_gptimer_clocksource_init(int gptimer_id, gptimer_id, clksrc.rate); } -#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER +#ifdef CONFIG_SOC_OMAP5 /* * The realtime counter also called master counter, is a free-running * counter, which is related to real time. It produces the count used @@ -549,10 +549,7 @@ static void __init realtime_counter_init(void) iounmap(base); } -#else -static inline void __init realtime_counter_init(void) -{} -#endif +#endif /* CONFIG_SOC_OMAP5 */ #define OMAP_SYS_GP_TIMER_INIT(name, clkev_nr, clkev_src, clkev_prop, \ clksrc_nr, clksrc_src) \