From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alexander Kochetkov Subject: Re: [PATCH v4 0/9] Implement clocksource for rockchip SoC using rockchip timer Date: Wed, 21 Dec 2016 17:21:05 +0300 Message-ID: References: <1480343486-25539-1-git-send-email-al.kochet@gmail.com> <1480436092-10728-1-git-send-email-al.kochet@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 9.3 \(3124\)) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <1480436092-10728-1-git-send-email-al.kochet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: LKML , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, LAK , linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Daniel Lezcano , Heiko Stuebner Cc: Thomas Gleixner , Mark Rutland , Rob Herring , Russell King , Caesar Wang , Huang Tao List-Id: devicetree@vger.kernel.org Hello Heiko, Daniel! Are there any reasons why the patches [1][2] are not applied yet into = kernel? How can I help in applying patches? Regards, Alexander. [1] = http://lists.infradead.org/pipermail/linux-rockchip/2016-November/thread.h= tml#13236 [PATCH v4 0/9] Implement clocksource for rockchip SoC using = rockchip timer=20 [2] = http://lists.infradead.org/pipermail/linux-rockchip/2016-December/013308.h= tml=20 > 29 =D0=BD=D0=BE=D1=8F=D0=B1. 2016 =D0=B3., =D0=B2 19:14, Alexander = Kochetkov =D0=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB= (=D0=B0): >=20 > Hello, >=20 > This patch series contain: > - devicetree bindings clarification for rockchip timers > - dts files fixes for rk3228-evb, rk3229-evb and rk3188 > - implementation of clocksource and sched clock for rockchip SoC >=20 > The clock supplying the arm-global-timer on the rk3188 is coming from = the > the cpu clock itself and thus changes its rate everytime cpufreq = adjusts > the cpu frequency making this timer unsuitable as a stable = clocksource. >=20 > The rk3188, rk3288 and following socs share a separate timer block = already > handled by the rockchip-timer driver. Therefore adapt this driver to = also > be able to act as clocksource on rk3188. >=20 > In order to test clocksource you can run following commands and check > how much time it take in real. On rk3188 it take about ~45 seconds. >=20 > cpufreq-set -f 1.6GHZ > date; sleep 60; date >=20 > rk3288 (and probably anything newer) is irrelevant to this patch, > as it has the arch timer interface. This patch may be usefull > for Cortex-A9/A5 based parts. >=20 > Regards, > Alexander. >=20 > This is try 4. Please discard all v1, v2, v3 patches. >=20 > Changes in v4: > merged 7 and 8 from series 3 > merged 10, 11, 12, 13 from series 3 > fixed commit message >=20 > Changes in v3: > added patches: > ARM: dts: rockchip: disable arm-global-timer for rk3188 > clocksource/drivers/rockchip_timer: Prevent ftrace recursion >=20 > devicetree v1 patches: > https://patchwork.ozlabs.org/patch/699019/ > https://patchwork.ozlabs.org/patch/699020/ >=20 > kernel v1 patches: > https://patchwork.kernel.org/patch/9443975/ > https://patchwork.kernel.org/patch/9443971/ > https://patchwork.kernel.org/patch/9443959/ > https://patchwork.kernel.org/patch/9443963/ > https://patchwork.kernel.org/patch/9443979/ > https://patchwork.kernel.org/patch/9443989/ > https://patchwork.kernel.org/patch/9443987/ > https://patchwork.kernel.org/patch/9443977/ > https://patchwork.kernel.org/patch/9443991/ >=20 > Alexander Kochetkov (9): > dt-bindings: clarify compatible property for rockchip timers > ARM: dts: rockchip: update compatible property for rk3228 timer > ARM: dts: rockchip: update compatible property for rk3229 timer > ARM: dts: rockchip: add timer entries to rk3188 SoC > ARM: dts: rockchip: disable arm-global-timer for rk3188 > clocksource/drivers/rockchip_timer: split bc_timer into rk_timer and > rk_clock_event_device > clocksource/drivers/rockchip_timer: low level routines take rk_timer > as parameter > clocksource/drivers/rockchip_timer: move TIMER_INT_UNMASK out of > rk_timer_enable() > clocksource/drivers/rockchip_timer: implement clocksource timer >=20 > .../bindings/timer/rockchip,rk-timer.txt | 12 +- > arch/arm/boot/dts/rk3188.dtsi | 17 ++ > arch/arm/boot/dts/rk3228-evb.dts | 4 + > arch/arm/boot/dts/rk3229-evb.dts | 4 + > drivers/clocksource/rockchip_timer.c | 207 = +++++++++++++++----- > 5 files changed, 190 insertions(+), 54 deletions(-) >=20 > --=20 > 1.7.9.5 >=20 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html