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Message-ID: <51B23D4E.9070502@overkiz.com> Date: Fri, 07 Jun 2013 22:06:38 +0200 From: boris brezillon <b.brezillon@...rkiz.com> To: Gregory CLEMENT <gregory.clement@...e-electrons.com> CC: Nicolas Ferre <nicolas.ferre@...el.com>, linux-fbdev@...r.kernel.org, Mike Turquette <mturquette@...aro.org>, linux-doc@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org, linux-usb@...r.kernel.org, linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org, linux-serial@...r.kernel.org, Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>, linux-arm-kernel@...ts.infradead.org Subject: Re: [RFC 00/50] ARM: at91: move to common clk framework On 07/06/2013 12:14, Gregory CLEMENT wrote: > On 06/07/2013 11:32 AM, boris brezillon wrote: >> 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 ? > I have just received this email. But since few days (or weeks) I have observed > a big latency on the LAKML. Sometime my emails were in the LAKML after 3 or 4 > hours. > >> And do you know why this could have been filtered ? > There is a filter which prevent to "hijack" a thread by changing the topic. > of course it is a problem for the patch set sent with git send-email. So for > this there is an exception if you have the word PATCH in your topic. But > it doesn't work with the work RFC. Maybe it is the word you have chosen. If > you are in this case then you can use [PATCH RFC ] Thanks for the tip. It did the trick. Best Regards, Boris > Regards > >> >>>> 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%) >>>> >>> >> >> _______________________________________________ >> linux-arm-kernel mailing list >> 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