Subject: [PATCH 1/4] ARM: OMAP: dmtimer: check for fixed timers during config

From: [email-masked] (Tony Lindgren)
Date: Mon, 5 Oct 2015 09:58:06 -0700

* Suman Anna <[email-masked]> [151005 09:47]:
> Tony,
> 
> On 10/03/2015 12:29 PM, kbuild test robot wrote:
> > Hi Suman,
> > 
> > [auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]
> > 
> > config: arm-omap1_defconfig (attached as .config)
> > reproduce:
> >         wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
> >         chmod +x ~/bin/make.cross
> >         # save the attached .config to linux build tree
> >         make.cross ARCH=arm 
> > 
> > All error/warnings (new ones prefixed by >>):
> > 
> >    arch/arm/plat-omap/dmtimer.c: In function 'omap_dm_timer_set_source':
> >>> arch/arm/plat-omap/dmtimer.c:509:2: error: implicit declaration of function 'clk_hw_get_num_parents' [-Werror=implicit-function-declaration]
> >      if (!clk_hw_get_num_parents(__clk_get_hw(timer->fclk)))
> >      ^
> >>> arch/arm/plat-omap/dmtimer.c:509:2: error: implicit declaration of function '__clk_get_hw' [-Werror=implicit-function-declaration]
> >    cc1: some warnings being treated as errors
> > 
> > vim +/clk_hw_get_num_parents +509 arch/arm/plat-omap/dmtimer.c
> > 
> >    503			return pdata->set_timer_src(timer->pdev, source);
> >    504	
> >    505		if (IS_ERR(timer->fclk))
> >    506			return -EINVAL;
> >    507	
> >    508		/* Check if the clock has parents if not no point checking */
> >  > 509		if (!clk_hw_get_num_parents(__clk_get_hw(timer->fclk)))
> >    510			return 0;
> 
> CONFIG_COMMON_CLK is not defined for OMAP1. So, are you ok if I enclose
> this within #ifdef CONFIG_COMMON_CLK?

Yes, or maybe you can just clk_get_rate() on the 32k oscillator?

Boards with no 32k oscillator should set the rate for that 0 zero.

Regards,

Tony