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From: arnd@arndb•de (Arnd Bergmann)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v3 06/10] clk: exynos5420: register clocks using common clock framework
Date: Tue, 18 Jun 2013 16:01:16 +0200	[thread overview]
Message-ID: <201306181601.16795.arnd@arndb.de> (raw)
In-Reply-To: <CANuQgHHoUyE5e+MnnpzWLxcFNcD11FjYwx76pucw7peV4qmFkQ@mail.gmail.com>

On Tuesday 18 June 2013, Chander Kashyap wrote:
> >> +       [Core Clocks]
> >> +
> >> +  Clock                      ID
> >> +  ----------------------------
> >> +
> >> +  fin_pll            1
> >> +
> >> +  [Clock Gate for Special Clocks]
> >> +
> >> +  Clock                      ID
> >> +  ----------------------------
> >> +  sclk_uart0         128
> >> +  sclk_uart1         129
> >> +  sclk_uart2         130
> >
> >> +
> >> +   [Peripheral Clock Gates]
> >> +
> >> +  Clock                      ID
> >> +  ----------------------------
> >> +
> >> +  aclk66_peric               256
> >> +  uart0                      257
> >> +  uart1                      258
> >
> > It looks like these are actually separate things. Wouldn't it be more sensible
> > to have separate device nodes for each of the lists and use a local index?
> I have listed the parent clock first, then the child clocks, to
> maintain  readability.
> >
> > What numbers are used in the data sheet?
> I didn't get your point?

I would have expected three clock device nodes, one for fin_pll (presumably a
fixed-rate clock?), one for "special clocks" and one for "peripheral clock
gates", and a number space starting at '1' for each of them, rather than
having a shared node and numbers starting at '1', '128' and '256', which looks
a bit clumsy.

Did you take the ID number definitions from a data sheet, or did you make up
the numbers yourself for the purpose of defining a binding?

	Arnd

  reply	other threads:[~2013-06-18 14:01 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-17 11:00 [PATCH v3 00/10] ARM: Exynos: Add Exynos5420 SoC support Chander Kashyap
2013-06-17 11:00 ` [PATCH v3 01/10] ARM: dts: fork out common Exynos5 nodes Chander Kashyap
2013-06-17 11:38   ` Kukjin Kim
2013-06-18  4:24     ` Chander Kashyap
2013-06-17 11:00 ` [PATCH v3 02/10] ARM: dts: list the CPU nodes for Exynos5250 Chander Kashyap
2013-06-17 11:00 ` [PATCH v3 03/10] ARM: Exynos: Add support for Exynos5420 SoC Chander Kashyap
2013-06-17 11:00 ` [PATCH v3 04/10] serial: samsung: select Exynos specific driver data if ARCH_EXYNOS is defined Chander Kashyap
2013-06-17 11:45   ` Kukjin Kim
2013-06-18 10:31   ` Kukjin Kim
2013-06-18 15:19     ` 'Greg Kroah-Hartman'
2013-06-17 11:00 ` [PATCH v3 05/10] ARM: Exynos: use four additional chipid bits to identify Exynos family Chander Kashyap
2013-06-17 11:00 ` [PATCH v3 06/10] clk: exynos5420: register clocks using common clock framework Chander Kashyap
2013-06-17 11:49   ` Kukjin Kim
2013-06-17 12:27   ` Arnd Bergmann
2013-06-18  4:09     ` Chander Kashyap
2013-06-18 14:01       ` Arnd Bergmann [this message]
2013-06-18 14:26         ` Tomasz Figa
2013-06-18 17:13           ` Arnd Bergmann
2013-06-17 11:00 ` [PATCH v3 07/10] ARM: dts: Add initial device tree support for Exynos5420 Chander Kashyap
2013-06-17 11:44   ` Tomasz Figa
2013-06-18  4:21     ` Chander Kashyap
2013-06-18  7:36       ` Tomasz Figa
2013-06-17 11:00 ` [PATCH v3 08/10] clocksource: exynos_mct: use (request/free)_irq calls for local timer registration Chander Kashyap
2013-06-17 11:53   ` Kukjin Kim
2013-06-18  4:11     ` Chander Kashyap
2013-06-17 11:00 ` [PATCH v3 09/10] ARM: Exynos: add secondary CPU boot base location for Exynos5420 Chander Kashyap
2013-06-17 11:00 ` [PATCH v3 10/10] ARM: Exynos: extend soft-reset support " Chander Kashyap
2013-06-17 12:21   ` Arnd Bergmann
2013-06-18  4:10     ` Chander Kashyap
2013-06-17 11:45 ` [PATCH v3 00/10] ARM: Exynos: Add Exynos5420 SoC support Tomasz Figa
2013-06-17 11:56 ` Kukjin Kim
2013-06-18  4:28   ` Chander Kashyap

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