linux-kernel - Re: [PATCH 3/3] clk: samsung: exynos5433: add CPU clocks configuration data and instantiate CPU clocks

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Message-id: <5185433.qVhfPjJi8E@amdc1976>
Date:	Mon, 20 Jun 2016 15:57:23 +0200
From:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
To:	Tomasz Figa <tomasz.figa@...il.com>
Cc:	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>, linux-clk@...r.kernel.org,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/3] clk: samsung: exynos5433: add CPU clocks configuration
 data and instantiate CPU clocks

On Saturday, June 18, 2016 11:57:30 PM Tomasz Figa wrote:
> Hi Bart,

Hi Tomek,

> 2016-05-24 22:19 GMT+09:00 Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>:
> > Add the CPU clocks configuration data and instantiate the CPU clocks
> > type for Exynos5433.
> >
> > Cc: Kukjin Kim <kgene@...nel.org>
> > CC: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> > Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> > ---
> >  drivers/clk/samsung/clk-exynos5433.c | 72 ++++++++++++++++++++++++++++++++----
> >  1 file changed, 64 insertions(+), 8 deletions(-)
> 
> Please see my comments inline.
> 
> > diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
> > index 6dd81ed..9ff6160 100644
> > --- a/drivers/clk/samsung/clk-exynos5433.c
> > +++ b/drivers/clk/samsung/clk-exynos5433.c
> [snip]
> >  static void __init exynos5433_cmu_apollo_init(struct device_node *np)
> > @@ -3620,6 +3640,12 @@ static void __init exynos5433_cmu_apollo_init(struct device_node *np)
> >                                  ARRAY_SIZE(apollo_div_clks));
> >         samsung_clk_register_gate(ctx, apollo_gate_clks,
> >                                   ARRAY_SIZE(apollo_gate_clks));
> > +
> > +       exynos_register_cpu_clock(ctx, CLK_SCLK_APOLLO, "apolloclk",
> > +               mout_apollo_p[0], mout_apollo_p[1], 0x200,
> > +               exynos5433_apolloclk_d, ARRAY_SIZE(exynos5433_apolloclk_d),
> > +               CLK_CPU_HAS_E5433_REGS_LAYOUT);
> 
> Hmm, I guess the reason for patch 1/3 was that
> exynos_register_cpu_clock() has to be called with the ctx pointer.
> However samsung_cmu_register_one() returns the ctx pointer, so I guess
> you could use that to avoid open-coding?

It is more than need to use ctx pointer.  Please see me reply to your
review of patch 1/3.

Best regards,
--
Bartlomiej Zolnierkiewicz
Samsung R&D Institute Poland
Samsung Electronics