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Message-ID: <51B1A894.80205@overkiz.com>
Date:	Fri, 07 Jun 2013 11:32:04 +0200
From:	boris brezillon <b.brezillon@...rkiz.com>
To:	Nicolas Ferre <nicolas.ferre@...el.com>
CC:	Mike Turquette <mturquette@...aro.org>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-fbdev@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	linux-doc@...r.kernel.org, linux-mmc@...r.kernel.org
Subject: Re: [RFC 00/50] ARM: at91: move to common clk framework

On 07/06/2013 11:22, Nicolas Ferre wrote:
> On 07/06/2013 10:34, Boris BREZILLON :
>> Hello,
>>
>> This patch series is a proposal to move at91 clock implementation
>> to common clk framework.
>
> Before discussion begins I would like to give my kudos to you Boris! 
> This is huge work and I thank you for it: It is so great!
>
> I am sure that Jean-Christophe will have his idea on that because he 
> told me that he thought a little bit about that, but I am sure that we 
> will come to a quick and seamlessly integration soon.
>
> (Hey, I know it is not technical email, but I am so exited to see this 
> happen that the noise worth it! ;-))
I received several notifications about filtered mails.
Could you tell me if you received the whole series ?
And do you know why this could have been filtered ?


>
>> Most of the clock provided by the PMC (Power Management Controller) are
>> implemented :
>> - main clock (main oscillator)
>> - pll clocks
>> - master clock
>> - programmable clocks
>> - utmi clock
>> - peripheral clocks
>> - system clocks
>>
>> This implementation is compatible with device tree: the goal is
>> to define the whole clock tree in the device tree (all currently
>> available dt SoCs and boards are patched to support dt clocks).
>> Please feel free to comment the dt bindinds (I'm not sure about the
>> name I choose or the position of clock nodes: children of pmc node).
>>
>> I removed the register_clocks function in SoC supporting dt boards only:
>> - at91sam9x5 SoCs
>> - at91sam9n12 SoC
>> - sama5d3 SoCs
>>
>> This patch series also update at91 drivers calling clk_enable/disable
>> instead of the preferred clk_prepare_enable/disable_unprepare functions.
>>
>>
>> I know there are a lot of cleanup in progress for at91 arch, so 
>> please tell
>> me if you think this transition to common clk framework should wait.
>>
>> This patch series has been tested on Kizbox (sam9g20 SoC) board using 
>> device
>> tree. It compiles for other SoCs and both with and without dt 
>> support, but it
>> has not been tested.
>>
>> The clocks rate/parent change has not been tested.
>>
>> Best Regards,
>> Boris
>>
>> Boris BREZILLON (50):
>>    ARM: at91: move arch/arm/mach-at91/include/mach/at91_pmc.h to
>>      include/linux/clk/at91.h
>>    ARM: at91: add PMC main clock using common clk framework.
>>    ARM: at91: add PMC pll clocks support using common clk framework.
>>    ARM: at91: add PMC master clock support using common clk framework.
>>    ARM: at91: add PMC system clocks support using common clk framework.
>>    ARM: at91: add PMC peripheral clocks support using common clk
>>      framework.
>>    ARM: at91: add PMC programmable clocks support using common clk
>>      framework.
>>    ARM: at91: add PMC utmi clock support using common clk framework.
>>    ARM: at91: add PMC usb clock support using common clk framework.
>>    ARM: at91: add PMC smd clock support using common clk framework.
>>    ARM: at91: add PMC clk device tree binding doc.
>>    ARM: at91: move to common clk framework.
>>    ARM: at91: move at91rm9200 SoC to common clk framework.
>>    ARM: at91: move at91sam9260 SoC to common clk framework.
>>    ARM: at91: move at91sam9263 SoC to common clk framework.
>>    ARM: at91: move at91sam9263 SoC to common clk framework.
>>    ARM: at91: move at91sam9g45 SoC to common clk framework.
>>    ARM: at91: move at91sam9n12 SoC to common clk framework.
>>    ARM: at91: move at91sam9rl SoC to common clk framework.
>>    ARM: at91: move at91sam9x5 SoCs to common clk framework.
>>    ARM: at91: move at91sam9 SoCs to common clk framework.
>>    ARM: at91: move sama5d3 SoCs to common clk framework.
>>    ARM: at91: move at91rm9200 non dt boards to common clk framework.
>>    ARM: at91: move at91sam9 non dt boards to common clk framework.
>>    ARM: at91: move pit timer to common clk framework.
>>    ARM: at91/tc/clocksource: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    at_hdmac: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    ASoC: atmel-ssc: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    mmc: atmel-mci: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    pwm: atmel-tcb: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    tty: atmel_serial: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    usb: gadget: at91_udc: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    drivers/usb/host/ehci-atmel.c: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    USB: ohci-at91: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    ARM: at91/avr32/atmel_lcdfb: replace clk_enable/disable with
>>      clk_prepare_enable/disable_unprepare.
>>    ARM: at91/dt: move at91rm9200 SoC to clk framework.
>>    ARM: at91/dt: move at91sam9260 SoC to common clk framework.
>>    ARM: at91/dt: move at91sam9263 SoC to common clk framework.
>>    ARM: at91/dt: move at91sam9g45 SoC to common clk framework.
>>    ARM: at91/dt: move at91sam9n12 SoC to common clk framework.
>>    ARM: at91/dt: move at91sam9x5 SoCs to common clk framework.
>>    ARM: at91/dt: move at91sam9g20 SoC to common clk framework.
>>    ARM: at91/dt: move sama5d3 SoCs to common clk framework.
>>    ARM: at91/dt: move at91sam9260/sam9g20 boards to common clk
>>      framework.
>>    ARM: at91/dt: move at91rm9200 boards to common clk framework.
>>    ARM: at91/dt: move at91sam9263 boards to common clk framework.
>>    ARM: at91/dt: move at91sam9g45 boards to common clk framework.
>>    ARM: at91/dt: move at91sam9n12 boards to common clk framework.
>>    ARM: at91/dt: move at91sam9x5 boards to common clk framework.
>>    ARM: at91/dt: move sama5d3 boards to common clk framework.
>>
>>   .../devicetree/bindings/clock/at91-clock.txt       |  247 +++++
>>   arch/arm/boot/dts/animeo_ip.dts                    |   17 +-
>>   arch/arm/boot/dts/at91-ariag25.dts                 |   17 +-
>>   arch/arm/boot/dts/at91rm9200.dtsi                  |  133 +++
>>   arch/arm/boot/dts/at91rm9200ek.dts                 |   17 +-
>>   arch/arm/boot/dts/at91sam9260.dtsi                 |  144 ++-
>>   arch/arm/boot/dts/at91sam9263.dtsi                 |  135 +++
>>   arch/arm/boot/dts/at91sam9263ek.dts                |   17 +-
>>   arch/arm/boot/dts/at91sam9g15.dtsi                 |   11 +
>>   arch/arm/boot/dts/at91sam9g20.dtsi                 |   37 +
>>   arch/arm/boot/dts/at91sam9g20ek_common.dtsi        |   17 +-
>>   arch/arm/boot/dts/at91sam9g25.dtsi                 |    3 +
>>   arch/arm/boot/dts/at91sam9g35.dtsi                 |   23 +
>>   arch/arm/boot/dts/at91sam9g45.dtsi                 |  157 ++++
>>   arch/arm/boot/dts/at91sam9m10g45ek.dts             |   17 +-
>>   arch/arm/boot/dts/at91sam9n12.dtsi                 |  153 ++++
>>   arch/arm/boot/dts/at91sam9n12ek.dts                |   17 +-
>>   arch/arm/boot/dts/at91sam9x25.dtsi                 |   25 +-
>>   arch/arm/boot/dts/at91sam9x35.dtsi                 |    3 +
>>   arch/arm/boot/dts/at91sam9x5.dtsi                  |  226 +++--
>>   arch/arm/boot/dts/at91sam9x5_can.dtsi              |   24 +
>>   arch/arm/boot/dts/at91sam9x5_isi.dtsi              |   24 +
>>   arch/arm/boot/dts/at91sam9x5_lcdc.dtsi             |   32 +
>>   arch/arm/boot/dts/at91sam9x5_macb0.dtsi            |   68 ++
>>   arch/arm/boot/dts/at91sam9x5_macb1.dtsi            |   56 ++
>>   arch/arm/boot/dts/at91sam9x5_usart3.dtsi           |   60 ++
>>   arch/arm/boot/dts/ge863-pro3.dtsi                  |   16 +-
>>   arch/arm/boot/dts/kizbox.dts                       |    5 +
>>   arch/arm/boot/dts/mpa1600.dts                      |   16 +-
>>   arch/arm/boot/dts/pm9g45.dts                       |   16 +-
>>   arch/arm/boot/dts/sama5d3.dtsi                     |  358 ++++----
>>   arch/arm/boot/dts/sama5d31ek.dts                   |    4 +
>>   arch/arm/boot/dts/sama5d33ek.dts                   |    2 +
>>   arch/arm/boot/dts/sama5d34ek.dts                   |    4 +
>>   arch/arm/boot/dts/sama5d35ek.dts                   |    6 +
>>   arch/arm/boot/dts/sama5d3_can.dtsi                 |   67 ++
>>   arch/arm/boot/dts/sama5d3_emac.dtsi                |   56 ++
>>   arch/arm/boot/dts/sama5d3_gmac.dtsi                |   89 ++
>>   arch/arm/boot/dts/sama5d3_lcd.dtsi                 |   73 ++
>>   arch/arm/boot/dts/sama5d3_mci2.dtsi                |   59 ++
>>   arch/arm/boot/dts/sama5d3_tcb1.dtsi                |   39 +
>>   arch/arm/boot/dts/sama5d3_uart.dtsi                |   42 +
>>   arch/arm/boot/dts/sama5d3xcm.dtsi                  |   17 +-
>>   arch/arm/boot/dts/tny_a9260_common.dtsi            |   17 +-
>>   arch/arm/boot/dts/tny_a9263.dts                    |   17 +-
>>   arch/arm/boot/dts/usb_a9260_common.dtsi            |   17 +-
>>   arch/arm/boot/dts/usb_a9263.dts                    |   17 +-
>>   arch/arm/mach-at91/Kconfig                         |   26 +
>>   arch/arm/mach-at91/Makefile                        |    2 +-
>>   arch/arm/mach-at91/at91rm9200.c                    |  578 +++++++-----
>>   arch/arm/mach-at91/at91sam9260.c                   |  694 
>> +++++++++-----
>>   arch/arm/mach-at91/at91sam9261.c                   |  581 ++++++++----
>>   arch/arm/mach-at91/at91sam9263.c                   |  599 +++++++-----
>>   arch/arm/mach-at91/at91sam926x_time.c              |   21 +-
>>   arch/arm/mach-at91/at91sam9g45.c                   |  705 
>> ++++++++------
>>   arch/arm/mach-at91/at91sam9g45_devices.c           |    1 -
>>   arch/arm/mach-at91/at91sam9n12.c                   |  196 +---
>>   arch/arm/mach-at91/at91sam9rl.c                    |  514 +++++++----
>>   arch/arm/mach-at91/at91sam9x5.c                    |  291 +-----
>>   arch/arm/mach-at91/board-1arm.c                    |   12 +-
>>   arch/arm/mach-at91/board-afeb-9260v1.c             |   11 +-
>>   arch/arm/mach-at91/board-cam60.c                   |   13 +-
>>   arch/arm/mach-at91/board-carmeva.c                 |   13 +-
>>   arch/arm/mach-at91/board-cpu9krea.c                |   12 +-
>>   arch/arm/mach-at91/board-cpuat91.c                 |   12 +-
>>   arch/arm/mach-at91/board-csb337.c                  |   11 +-
>>   arch/arm/mach-at91/board-csb637.c                  |   11 +-
>>   arch/arm/mach-at91/board-dt-rm9200.c               |    9 +-
>>   arch/arm/mach-at91/board-dt-sam9.c                 |    9 +-
>>   arch/arm/mach-at91/board-dt-sama5.c                |    9 +-
>>   arch/arm/mach-at91/board-eb9200.c                  |   11 +-
>>   arch/arm/mach-at91/board-ecbat91.c                 |   12 +-
>>   arch/arm/mach-at91/board-eco920.c                  |   13 +-
>>   arch/arm/mach-at91/board-flexibity.c               |   12 +-
>>   arch/arm/mach-at91/board-foxg20.c                  |   12 +-
>>   arch/arm/mach-at91/board-gsia18s.c                 |    8 +-
>>   arch/arm/mach-at91/board-kafa.c                    |   12 +-
>>   arch/arm/mach-at91/board-kb9202.c                  |   12 +-
>>   arch/arm/mach-at91/board-pcontrol-g20.c            |    9 +-
>>   arch/arm/mach-at91/board-picotux200.c              |   11 +-
>>   arch/arm/mach-at91/board-qil-a9260.c               |   11 +-
>>   arch/arm/mach-at91/board-rm9200dk.c                |   11 +-
>>   arch/arm/mach-at91/board-rm9200ek.c                |   11 +-
>>   arch/arm/mach-at91/board-rsi-ews.c                 |   12 +-
>>   arch/arm/mach-at91/board-sam9-l9260.c              |   11 +-
>>   arch/arm/mach-at91/board-sam9260ek.c               |   11 +-
>>   arch/arm/mach-at91/board-sam9261ek.c               |   15 +-
>>   arch/arm/mach-at91/board-sam9263ek.c               |   11 +-
>>   arch/arm/mach-at91/board-sam9g20ek.c               |   15 +-
>>   arch/arm/mach-at91/board-sam9m10g45ek.c            |   11 +-
>>   arch/arm/mach-at91/board-sam9rlek.c                |   11 +-
>>   arch/arm/mach-at91/board-snapper9260.c             |   12 +-
>>   arch/arm/mach-at91/board-stamp9g20.c               |   15 +-
>>   arch/arm/mach-at91/board-yl-9200.c                 |   12 +-
>>   arch/arm/mach-at91/clock.c                         |  961 
>> --------------------
>>   arch/arm/mach-at91/clock.h                         |   49 -
>>   arch/arm/mach-at91/generic.h                       |   10 +-
>>   arch/arm/mach-at91/pm.c                            |    2 +-
>>   arch/arm/mach-at91/pm_slowclock.S                  |    2 +-
>>   arch/arm/mach-at91/pmc.c                           |   58 ++
>>   arch/arm/mach-at91/sama5d3.c                       |  344 +------
>>   arch/arm/mach-at91/setup.c                         |   38 +-
>>   arch/arm/mach-at91/stamp9g20.h                     |    2 +-
>>   drivers/clk/Makefile                               |    1 +
>>   drivers/clk/at91/Makefile                          |   11 +
>>   drivers/clk/at91/clk-main.c                        |  106 +++
>>   drivers/clk/at91/clk-master.c                      |  317 +++++++
>>   drivers/clk/at91/clk-peripheral.c                  |  376 ++++++++
>>   drivers/clk/at91/clk-pll.c                         |  438 +++++++++
>>   drivers/clk/at91/clk-plldiv.c                      |  125 +++
>>   drivers/clk/at91/clk-programmable.c                |  370 ++++++++
>>   drivers/clk/at91/clk-smd.c                         |  157 ++++
>>   drivers/clk/at91/clk-system.c                      |  189 ++++
>>   drivers/clk/at91/clk-usb.c                         |  303 ++++++
>>   drivers/clk/at91/clk-utmi.c                        |  114 +++
>>   drivers/clocksource/tcb_clksrc.c                   |   10 +-
>>   drivers/dma/at_hdmac.c                             |   12 +-
>>   drivers/misc/atmel-ssc.c                           |    8 +-
>>   drivers/mmc/host/atmel-mci.c                       |   16 +-
>>   drivers/pwm/pwm-atmel-tcb.c                        |    4 +-
>>   drivers/tty/serial/atmel_serial.c                  |   35 +-
>>   drivers/usb/gadget/at91_udc.c                      |   12 +-
>>   drivers/usb/gadget/atmel_usba_udc.c                |    2 +-
>>   drivers/usb/host/ehci-atmel.c                      |    8 +-
>>   drivers/usb/host/ohci-at91.c                       |   12 +-
>>   drivers/video/atmel_lcdfb.c                        |    8 +-
>>   .../mach/at91_pmc.h => include/linux/clk/at91.h    |  122 ++-
>>   127 files changed, 7588 insertions(+), 3862 deletions(-)
>>   create mode 100644 
>> Documentation/devicetree/bindings/clock/at91-clock.txt
>>   create mode 100644 arch/arm/boot/dts/at91sam9x5_can.dtsi
>>   create mode 100644 arch/arm/boot/dts/at91sam9x5_isi.dtsi
>>   create mode 100644 arch/arm/boot/dts/at91sam9x5_lcdc.dtsi
>>   create mode 100644 arch/arm/boot/dts/at91sam9x5_macb0.dtsi
>>   create mode 100644 arch/arm/boot/dts/at91sam9x5_macb1.dtsi
>>   create mode 100644 arch/arm/boot/dts/at91sam9x5_usart3.dtsi
>>   create mode 100644 arch/arm/boot/dts/sama5d3_can.dtsi
>>   create mode 100644 arch/arm/boot/dts/sama5d3_emac.dtsi
>>   create mode 100644 arch/arm/boot/dts/sama5d3_gmac.dtsi
>>   create mode 100644 arch/arm/boot/dts/sama5d3_lcd.dtsi
>>   create mode 100644 arch/arm/boot/dts/sama5d3_mci2.dtsi
>>   create mode 100644 arch/arm/boot/dts/sama5d3_tcb1.dtsi
>>   create mode 100644 arch/arm/boot/dts/sama5d3_uart.dtsi
>>   delete mode 100644 arch/arm/mach-at91/clock.c
>>   delete mode 100644 arch/arm/mach-at91/clock.h
>>   create mode 100644 arch/arm/mach-at91/pmc.c
>>   create mode 100644 drivers/clk/at91/Makefile
>>   create mode 100644 drivers/clk/at91/clk-main.c
>>   create mode 100644 drivers/clk/at91/clk-master.c
>>   create mode 100644 drivers/clk/at91/clk-peripheral.c
>>   create mode 100644 drivers/clk/at91/clk-pll.c
>>   create mode 100644 drivers/clk/at91/clk-plldiv.c
>>   create mode 100644 drivers/clk/at91/clk-programmable.c
>>   create mode 100644 drivers/clk/at91/clk-smd.c
>>   create mode 100644 drivers/clk/at91/clk-system.c
>>   create mode 100644 drivers/clk/at91/clk-usb.c
>>   create mode 100644 drivers/clk/at91/clk-utmi.c
>>   rename arch/arm/mach-at91/include/mach/at91_pmc.h => 
>> include/linux/clk/at91.h (76%)
>>
>
>

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