From: Rob Herring <robh@kernel.org>
To: Brian Norris <briannorris@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>, Lin Huang <hl@rock-chips.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Heiko Stuebner <heiko@sntech.de>,
linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org,
Chanwoo Choi <cw00.choi@samsung.com>,
linux-arm-kernel@lists.infradead.org,
Derek Basehore <dbasehore@chromium.org>
Subject: Re: [PATCH v2 05/15] dt-bindings: devfreq: rk3399_dmc: Add more disable-freq properties
Date: Wed, 9 Feb 2022 14:29:04 -0600 [thread overview]
Message-ID: <YgQkEKKTy5hAMfpS@robh.at.kernel.org> (raw)
In-Reply-To: <20220127150615.v2.5.I382d4de737198ea52deb118c9bdc4d93d76e009e@changeid>
On Thu, 27 Jan 2022 15:07:16 -0800, Brian Norris wrote:
> DDR DVFS tuning has found that several power-saving features don't have
> good tradeoffs at higher frequencies -- at higher frequencies, we'll see
> glitches or other errors. Provide tuning controls so these can be
> disabled at higher OPPs, and left active only at the lower ones.
>
> Signed-off-by: Brian Norris <briannorris@chromium.org>
> ---
>
> Changes in v2:
> - hyphens, not underscores
> - *-hz units, and drop the types definition
>
> .../bindings/devfreq/rk3399_dmc.yaml | 37 +++++++++++++++++++
> 1 file changed, 37 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
WARNING: multiple messages have this Message-ID (diff)
From: Rob Herring <robh@kernel.org>
To: Brian Norris <briannorris@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>, Lin Huang <hl@rock-chips.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Heiko Stuebner <heiko@sntech.de>,
linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org,
Chanwoo Choi <cw00.choi@samsung.com>,
linux-arm-kernel@lists.infradead.org,
Derek Basehore <dbasehore@chromium.org>
Subject: Re: [PATCH v2 05/15] dt-bindings: devfreq: rk3399_dmc: Add more disable-freq properties
Date: Wed, 9 Feb 2022 14:29:04 -0600 [thread overview]
Message-ID: <YgQkEKKTy5hAMfpS@robh.at.kernel.org> (raw)
In-Reply-To: <20220127150615.v2.5.I382d4de737198ea52deb118c9bdc4d93d76e009e@changeid>
On Thu, 27 Jan 2022 15:07:16 -0800, Brian Norris wrote:
> DDR DVFS tuning has found that several power-saving features don't have
> good tradeoffs at higher frequencies -- at higher frequencies, we'll see
> glitches or other errors. Provide tuning controls so these can be
> disabled at higher OPPs, and left active only at the lower ones.
>
> Signed-off-by: Brian Norris <briannorris@chromium.org>
> ---
>
> Changes in v2:
> - hyphens, not underscores
> - *-hz units, and drop the types definition
>
> .../bindings/devfreq/rk3399_dmc.yaml | 37 +++++++++++++++++++
> 1 file changed, 37 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
WARNING: multiple messages have this Message-ID (diff)
From: Rob Herring <robh@kernel.org>
To: Brian Norris <briannorris@chromium.org>
Cc: Rob Herring <robh+dt@kernel.org>, Lin Huang <hl@rock-chips.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Heiko Stuebner <heiko@sntech.de>,
linux-pm@vger.kernel.org, linux-rockchip@lists.infradead.org,
Chanwoo Choi <cw00.choi@samsung.com>,
linux-arm-kernel@lists.infradead.org,
Derek Basehore <dbasehore@chromium.org>
Subject: Re: [PATCH v2 05/15] dt-bindings: devfreq: rk3399_dmc: Add more disable-freq properties
Date: Wed, 9 Feb 2022 14:29:04 -0600 [thread overview]
Message-ID: <YgQkEKKTy5hAMfpS@robh.at.kernel.org> (raw)
In-Reply-To: <20220127150615.v2.5.I382d4de737198ea52deb118c9bdc4d93d76e009e@changeid>
On Thu, 27 Jan 2022 15:07:16 -0800, Brian Norris wrote:
> DDR DVFS tuning has found that several power-saving features don't have
> good tradeoffs at higher frequencies -- at higher frequencies, we'll see
> glitches or other errors. Provide tuning controls so these can be
> disabled at higher OPPs, and left active only at the lower ones.
>
> Signed-off-by: Brian Norris <briannorris@chromium.org>
> ---
>
> Changes in v2:
> - hyphens, not underscores
> - *-hz units, and drop the types definition
>
> .../bindings/devfreq/rk3399_dmc.yaml | 37 +++++++++++++++++++
> 1 file changed, 37 insertions(+)
>
Reviewed-by: Rob Herring <robh@kernel.org>
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-02-09 20:29 UTC|newest]
Thread overview: 81+ 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 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` [PATCH v2 01/15] dt-bindings: devfreq: rk3399_dmc: Convert to YAML Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-02-09 20:17 ` Rob Herring
2022-02-09 20:17 ` Rob Herring
2022-02-09 20:17 ` Rob Herring
2022-03-04 21:23 ` Brian Norris
2022-03-04 21:23 ` Brian Norris
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 23:07 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:17 ` Brian Norris
2022-01-27 23:17 ` 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
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-02-04 1:59 ` Chanwoo Choi
2022-02-04 1:59 ` Chanwoo Choi
2022-02-04 1:59 ` Chanwoo Choi
2022-02-09 20:19 ` Rob Herring
2022-02-09 20:19 ` Rob Herring
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
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-02-09 20:21 ` Rob Herring
2022-02-09 20:21 ` Rob Herring
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
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-02-09 20:29 ` Rob Herring [this message]
2022-02-09 20:29 ` Rob Herring
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 ` Brian Norris
2022-01-27 23:07 ` 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 ` Brian Norris
2022-01-27 23:07 ` 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 ` Brian Norris
2022-01-27 23:07 ` 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 ` Brian Norris
2022-01-27 23:07 ` 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 ` Brian Norris
2022-01-27 23:07 ` 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 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` [PATCH v2 12/15] arm64: dts: rockchip: Enable dmc and dfi nodes on gru Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-03-04 14:47 ` Peter Geis
2022-03-04 14:47 ` Peter Geis
2022-03-04 14:47 ` Peter Geis
2022-03-04 20:47 ` Brian Norris
2022-03-04 20:47 ` Brian Norris
2022-03-04 20:47 ` Brian Norris
2022-04-06 2:05 ` Brian Norris
2022-04-06 2:05 ` Brian Norris
2022-04-06 2:05 ` Brian Norris
2022-04-07 0:18 ` Peter Geis
2022-04-07 0:18 ` Peter Geis
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 ` Brian Norris
2022-01-27 23:07 ` 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 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` [PATCH v2 15/15] PM / devfreq: rk3399_dmc: Avoid static (reused) profile Brian Norris
2022-01-27 23:07 ` Brian Norris
2022-01-27 23:07 ` Brian Norris
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