linux-kernel - Re: [PATCH 1/2] clk: sunxi: add predivider handling for factors clock

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Date:	Tue, 19 Apr 2016 18:22:34 +0800
From:	Philip Li <philip.li@...el.com>
To:	Vishnu Patekar <vishnupatekar0510@...il.com>, xiaolong.ye@...el.com
Cc:	kbuild test robot <lkp@...el.com>, Chen-Yu Tsai <wens@...e.org>,
	sboyd@...eaurora.org, linux-arm-kernel@...ts.infradead.org,
	maxime.ripard@...e-electrons.com, linux-sunxi@...glegroups.com,
	kbuild-all@...org, emilio@...pez.com.ar,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] clk: sunxi: add predivider handling for factors clock

On Sun, Apr 17, 2016 at 11:53:47AM +0800, Vishnu Patekar wrote:
> Both of these patches in series has to be applied at the same time.
> I think this is the reason, it fails.

hi Xiaolong, would you help do a check whether we apply the patches in correct sequence for this case?


> On 17 Apr 2016 09:26, "kbuild test robot" <lkp@...el.com> wrote:
> 
> > Hi Vishnu,
> >
> > [auto build test ERROR on clk/clk-next]
> > [also build test ERROR on v4.6-rc3 next-20160415]
> > [if your patch is applied to the wrong git tree, please drop us a note to
> > help improving the system]
> >
> > url:
> > https://github.com/0day-ci/linux/commits/Vishnu-Patekar/sunxi-factors-clock-predivider-handling/20160417-025801
> > base:   https://git.kernel.org/pub/scm/linux/kernel/git/clk/linux.git
> > clk-next
> > config: arm-sunxi_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
> >
> > Note: the
> > linux-review/Vishnu-Patekar/sunxi-factors-clock-predivider-handling/20160417-025801
> > HEAD 19bb5fc952754381d9f4f9b2e57a1fa09f467359 builds fine.
> >       It only hurts bisectibility.
> >
> > All errors (new ones prefixed by >>):
> >
> >    drivers/clk/sunxi/clk-sunxi.c: In function 'sun6i_get_ahb1_factors':
> > >> drivers/clk/sunxi/clk-sunxi.c:310:9: error: 'struct factors_request'
> > has no member named 'parent_index'
> >      if (req->parent_index == SUN6I_AHB1_PARENT_PLL6) {
> >             ^
> >    drivers/clk/sunxi/clk-sunxi.c: In function 'sun6i_ahb1_recalc':
> >    drivers/clk/sunxi/clk-sunxi.c:340:9: error: 'struct factors_request'
> > has no member named 'parent_index'
> >      if (req->parent_index == SUN6I_AHB1_PARENT_PLL6)
> >             ^
> >
> > vim +310 drivers/clk/sunxi/clk-sunxi.c
> >
> > a78bb355 Chen-Yu Tsai 2016-01-25  304   if (req->parent_rate && req->rate
> > > req->parent_rate)
> > a78bb355 Chen-Yu Tsai 2016-01-25  305           req->rate =
> > req->parent_rate;
> > a78bb355 Chen-Yu Tsai 2016-01-25  306
> > a78bb355 Chen-Yu Tsai 2016-01-25  307   div =
> > DIV_ROUND_UP(req->parent_rate, req->rate);
> > a78bb355 Chen-Yu Tsai 2016-01-25  308
> > a78bb355 Chen-Yu Tsai 2016-01-25  309   /* calculate pre-divider if parent
> > is pll6 */
> > a78bb355 Chen-Yu Tsai 2016-01-25 @310   if (req->parent_index ==
> > SUN6I_AHB1_PARENT_PLL6) {
> > a78bb355 Chen-Yu Tsai 2016-01-25  311           if (div < 4)
> > a78bb355 Chen-Yu Tsai 2016-01-25  312                   calcp = 0;
> > a78bb355 Chen-Yu Tsai 2016-01-25  313           else if (div / 2 < 4)
> >
> > :::::: The code at line 310 was first introduced by commit
> > :::::: a78bb35552a800949b2bf68f372d3d6ccabdd790 clk: sunxi: rewrite
> > sun6i-a31-ahb1-clk using factors clk with custom recalc
> >
> > :::::: TO: Chen-Yu Tsai <wens@...e.org>
> > :::::: CC: Maxime Ripard <maxime.ripard@...e-electrons.com>
> >
> > ---
> > 0-DAY kernel test infrastructure                Open Source Technology
> > Center
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> > Corporation
> >