linux-kernel - Re: [PATCH 0/7] ARM: shmobile: Add IRQC clock to device tree

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Date:	Thu, 19 Mar 2015 10:43:29 +0900
From:	Simon Horman <horms@...ge.net.au>
To:	Geert Uytterhoeven <geert+renesas@...der.be>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Magnus Damm <magnus.damm@...il.com>, linux-sh@...r.kernel.org,
	devicetree@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/7] ARM: shmobile: Add IRQC clock to device tree

Thanks Geert,

On Wed, Mar 18, 2015 at 07:55:54PM +0100, Geert Uytterhoeven wrote:
> 	Hi,
> 
> This patch series adds the IRQC clock to the device tree on SoCs that
> have such a clock (r8a73a4 and r8a779x), and adds mininal runtime PM
> support to the renesas-irqc driver, to make sure the clock is enabled
> when needed by the external IRQ controller(s).
> Before, the clock was assumed enabled by the bootloader or reset state.
> 
> As usual when involving clocks, the DTS changes depend stricly on the
> driver changes. Else the clock will be disabled as assumed unused,
> breaking the boot.
> 
> This was tested on r8a73a4/ape6evm and r8a7791/koelsch.

I will defer the DTS changes until the irqchip changes, which I
have reviewed, are accepted.

> 
> Thanks!
> 
> Geert Uytterhoeven (7):
>   irqchip: renesas-irqc: Add more register documentation
>   irqchip: renesas-irqc: Add minimal runtime PM support
>   irqchip: renesas-irqc: Add functional clock to bindings
>   ARM: shmobile: r8a7734: Add IRQC clock to device tree
>   ARM: shmobile: r8a7790: Add IRQC clock to device tree
>   ARM: shmobile: r8a7791: Add IRQC clock to device tree
>   ARM: shmobile: r8a7794: Add IRQC clock to device tree
> 
>  .../bindings/interrupt-controller/renesas,irqc.txt |  4 +++-
>  arch/arm/boot/dts/r8a73a4.dtsi                     | 11 +++++----
>  arch/arm/boot/dts/r8a7790.dtsi                     |  9 +++++++
>  arch/arm/boot/dts/r8a7791.dtsi                     |  9 +++++++
>  arch/arm/boot/dts/r8a7794.dtsi                     |  9 +++++++
>  drivers/irqchip/irq-renesas-irqc.c                 | 28 ++++++++++++++++++----
>  include/dt-bindings/clock/r8a73a4-clock.h          |  1 +
>  include/dt-bindings/clock/r8a7790-clock.h          |  3 +++
>  include/dt-bindings/clock/r8a7791-clock.h          |  3 +++
>  include/dt-bindings/clock/r8a7794-clock.h          |  3 +++
>  10 files changed, 70 insertions(+), 10 deletions(-)
> 
> -- 
> 1.9.1
> 
> Gr{oetje,eeting}s,
> 
> 						Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
> 							    -- Linus Torvalds
> 
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