From: Brian Norris <briannorris@chromium.org>
To: Peter Geis <pgwipeout@gmail.com>
Cc: "MyungJoo Ham" <myungjoo.ham@samsung.com>,
"Kyungmin Park" <kyungmin.park@samsung.com>,
"Chanwoo Choi" <cw00.choi@samsung.com>,
"Rob Herring" <robh+dt@kernel.org>,
"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
"open list:ARM/Rockchip SoC..."
<linux-rockchip@lists.infradead.org>,
"Lin Huang" <hl@rock-chips.com>,
arm-mail-list <linux-arm-kernel@lists.infradead.org>,
"Derek Basehore" <dbasehore@chromium.org>,
devicetree <devicetree@vger.kernel.org>,
linux-pm <linux-pm@vger.kernel.org>,
"Heiko Stuebner" <heiko@sntech.de>,
"Enric Balletbo i Serra" <enric.balletbo@collabora.com>,
"Gaël PORTAY" <gael.portay@collabora.com>,
"Daniel Lezcano" <daniel.lezcano@linaro.org>
Subject: Re: [PATCH v2 12/15] arm64: dts: rockchip: Enable dmc and dfi nodes on gru
Date: Tue, 5 Apr 2022 19:05:33 -0700 [thread overview]
Message-ID: <CA+ASDXP46bVqZAyzgUQkZAqqVf6Yc5Zg9CZ_1k0XCYUSYq_QLg@mail.gmail.com> (raw)
In-Reply-To: <CAMdYzYo9Y_pEAAtreQU0B9DVzGsbUgpTA2g7HGRyUXcSBjMy4g@mail.gmail.com>
Hello again Peter,
On Fri, Mar 4, 2022 at 6:47 AM Peter Geis <pgwipeout@gmail.com> wrote:
> Transitions anywhere from the default 800mhz cause a lock.
>
> I'm digging deeper, but I'm hoping you can answer some questions in
> the meantime:
> 1. Does this require something from firmware that isn't available on
> Mainline ATF? (AKA special firmware to the Chromebook line)
> 2. If not, do you have any recommendations off the top of your head?
I may have a better answer for you now. In the intervening time
period, I've discovered a potentially-relevant bug, involving
interactions between the kernel power-domain driver and ATF. See this
series for my current fixes:
https://lore.kernel.org/linux-rockchip/20220406014842.2771799-1-briannorris@chromium.org/
[RFC PATCH 0/2] rockchip / devfreq: Coordinate DRAM controller
resources between ATF and kernel
If that happens to help you (it may help, for instance, if your system
was toggling NPLL off/on like mine was; it also may help if you're
hitting a race on PMU_BUS_IDLE_REQ like noticed in patch 1), I'd love
your feedback there.
It's still possible your problems are completely unrelated though.
Regards,
Brian
next prev parent reply other threads:[~2022-04-06 8:27 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-27 23:07 [PATCH v2 00/15] rk3399: Clean up and enable DDR DVFS Brian Norris
2022-01-27 23:07 ` [PATCH v2 01/15] dt-bindings: devfreq: rk3399_dmc: Convert to YAML Brian Norris
2022-02-09 20:17 ` Rob Herring
2022-03-04 21:23 ` Brian Norris
2022-01-27 23:07 ` [PATCH v2 02/15] dt-bindings: devfreq: rk3399_dmc: Deprecate unused/redundant properties Brian Norris
2022-01-27 23:17 ` Brian Norris
2022-01-27 23:07 ` [PATCH v2 03/15] dt-bindings: devfreq: rk3399_dmc: Fix Hz units Brian Norris
2022-02-04 1:59 ` Chanwoo Choi
2022-02-09 20:19 ` Rob Herring
2022-01-27 23:07 ` [PATCH v2 04/15] dt-bindings: devfreq: rk3399_dmc: Specify idle params in nanoseconds Brian Norris
2022-02-09 20:21 ` Rob Herring
2022-01-27 23:07 ` [PATCH v2 05/15] dt-bindings: devfreq: rk3399_dmc: Add more disable-freq properties Brian Norris
2022-02-09 20:29 ` Rob Herring
2022-01-27 23:07 ` [PATCH v2 06/15] PM / devfreq: rk3399_dmc: Drop undocumented ondemand DT props Brian Norris
2022-01-27 23:07 ` [PATCH v2 07/15] PM / devfreq: rk3399_dmc: Drop excess timing properties Brian Norris
2022-01-27 23:07 ` [PATCH v2 08/15] PM / devfreq: rk3399_dmc: Use bitfield macro definitions for ODT_PD Brian Norris
2022-01-27 23:07 ` [PATCH v2 09/15] PM / devfreq: rk3399_dmc: Support new disable-freq properties Brian Norris
2022-01-27 23:07 ` [PATCH v2 10/15] PM / devfreq: rk3399_dmc: Support new *-ns properties Brian Norris
2022-01-27 23:07 ` [PATCH v2 11/15] arm64: dts: rk3399: Add dfi and dmc nodes Brian Norris
2022-01-27 23:07 ` [PATCH v2 12/15] arm64: dts: rockchip: Enable dmc and dfi nodes on gru Brian Norris
2022-03-04 14:47 ` Peter Geis
2022-03-04 20:47 ` Brian Norris
2022-04-06 2:05 ` Brian Norris [this message]
2022-04-07 0:18 ` Peter Geis
2022-01-27 23:07 ` [PATCH v2 13/15] PM / devfreq: rk3399_dmc: Disable edev on remove() Brian Norris
2022-01-27 23:07 ` [PATCH v2 14/15] PM / devfreq: rk3399_dmc: Use devm_pm_opp_of_add_table() Brian Norris
2022-01-27 23:07 ` [PATCH v2 15/15] PM / devfreq: rk3399_dmc: Avoid static (reused) profile Brian Norris
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