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From: Tomasz Figa <tfiga@chromium.org>
To: a.hajda@samsung.com
Cc: "Enric Balletbo i Serra" <enric.balletbo@collabora.com>,
	"Archit Taneja" <architt@codeaurora.org>,
	"Inki Dae" <inki.dae@samsung.com>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Sandy Huang" <hjc@rock-chips.com>,
	"Sean Paul" <seanpaul@chromium.org>,
	"David Airlie" <airlied@linux.ie>,
	"Heiko Stübner" <heiko@sntech.de>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	"Douglas Anderson" <dianders@chromium.org>,
	"Yakir Yang" <ykk@rock-chips.com>,
	kernel@collabora.com,
	"Marek Szyprowski" <m.szyprowski@samsung.com>,
	linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
	jy0922.shim@samsung.com, rydberg@bitmath.org,
	"Krzysztof Kozlowski" <krzk@kernel.org>,
	"open list:ARM/Rockchip SoC..."
	<linux-rockchip@lists.infradead.org>,
	kgene@kernel.org, linux-input@vger.kernel.org,
	"Ørjan Eide" <orjan.eide@arm.com>,
	"Caesar Wang" <wxt@rock-chips.com>,
	Jeffy <jeffy.chen@rock-chips.com>,
	"list@263.net:IOMMU DRIVERS <iommu@lists.linux-foundation.org>,
	Joerg Roedel <joro@8bytes.org>,"
	<linux-arm-kernel@lists.infradead.org>,
	"Mark yao" <mark.yao@rock-chips.com>, 王征增 <wzz@rock-chips.com>,
	"Lin Huang" <hl@rock-chips.com>,
	"Jingoo Han" <jingoohan1@gmail.com>,
	"Seung-Woo Kim" <sw0312.kim@samsung.com>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Kyungmin Park" <kyungmin.park@samsung.com>,
	"Laurent Pinchart" <Laurent.pinchart@ideasonboard.com>,
	kuankuan.y@gmail.com, "Haixia Shi" <hshi@chromium.org>
Subject: Re: [PATCH v6 28/30] drm/rockchip: Disable PSR from reboot notifier
Date: Mon, 16 Apr 2018 13:12:07 +0000	[thread overview]
Message-ID: <CAAFQd5C_RhqSCfEXNPQ0zH-O1PGk6xGEdvzsSxnfz9kJ5G4Ceg@mail.gmail.com> (raw)
In-Reply-To: <a9e436f8-34ec-123a-9c69-efabb4576bea@samsung.com>

Hi Andrzej,

On Mon, Apr 16, 2018 at 6:57 PM Andrzej Hajda <a.hajda@samsung.com> wrote:

> On 05.04.2018 11:49, Enric Balletbo i Serra wrote:
> > From: Tomasz Figa <tfiga@chromium.org>
> >
> > It looks like the driver subsystem detaches devices from power domains
> > at shutdown without consent of the drivers.

> It looks bit strange. Could you elaborate more on it. Could you show the
> code performing the detach?

It not only looks strange, but it is strange. The code was present in 4.4:

https://elixir.bootlin.com/linux/v4.4.128/source/drivers/base/platform.c#L553

but was apparently removed in 4.5:

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/base/platform.c?h=next-20180416&id=2d30bb0b3889adf09b342722b2ce596c0763bc93

So we might not need this patch anymore.

Best regards,
Tomasz

WARNING: multiple messages have this Message-ID
From: Tomasz Figa <tfiga@chromium.org>
To: a.hajda@samsung.com
Cc: "David Airlie" <airlied@linux.ie>,
	dri-devel <dri-devel@lists.freedesktop.org>,
	"Douglas Anderson" <dianders@chromium.org>,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Laurent Pinchart" <Laurent.pinchart@ideasonboard.com>,
	"Yakir Yang" <ykk@rock-chips.com>,
	kernel@collabora.com,
	"Marek Szyprowski" <m.szyprowski@samsung.com>,
	linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
	rydberg@bitmath.org, "Krzysztof Kozlowski" <krzk@kernel.org>,
	"open list:ARM/Rockchip SoC..."
	<linux-rockchip@lists.infradead.org>,
	kgene@kernel.org, linux-input@vger.kernel.org,
	"Ørjan Eide" <orjan.eide@arm.com>,
	"Caesar Wang" <wxt@rock-chips.com>,
	Jeffy <jeffy.chen@rock-chips.com>,
	"list@263.net:IOMMU DRIVERS <iommu@lists.linux-foundation.org>,
	Joerg Roedel <joro@8bytes.org>,
	" <linux-arm-kernel@lists.infradead.org>,
	"Mark yao" <mark.yao@rock-chips.com>, 王征增 <wzz@rock-chi>
Subject: Re: [PATCH v6 28/30] drm/rockchip: Disable PSR from reboot notifier
Date: Mon, 16 Apr 2018 13:12:07 +0000	[thread overview]
Message-ID: <CAAFQd5C_RhqSCfEXNPQ0zH-O1PGk6xGEdvzsSxnfz9kJ5G4Ceg@mail.gmail.com> (raw)
In-Reply-To: <a9e436f8-34ec-123a-9c69-efabb4576bea@samsung.com>

Hi Andrzej,

On Mon, Apr 16, 2018 at 6:57 PM Andrzej Hajda <a.hajda@samsung.com> wrote:

> On 05.04.2018 11:49, Enric Balletbo i Serra wrote:
> > From: Tomasz Figa <tfiga@chromium.org>
> >
> > It looks like the driver subsystem detaches devices from power domains
> > at shutdown without consent of the drivers.

> It looks bit strange. Could you elaborate more on it. Could you show the
> code performing the detach?

It not only looks strange, but it is strange. The code was present in 4.4:

https://elixir.bootlin.com/linux/v4.4.128/source/drivers/base/platform.c#L553

but was apparently removed in 4.5:

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/base/platform.c?h=next-20180416&id=2d30bb0b3889adf09b342722b2ce596c0763bc93

So we might not need this patch anymore.

Best regards,
Tomasz
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

WARNING: multiple messages have this Message-ID
From: tfiga@chromium.org (Tomasz Figa)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 28/30] drm/rockchip: Disable PSR from reboot notifier
Date: Mon, 16 Apr 2018 13:12:07 +0000	[thread overview]
Message-ID: <CAAFQd5C_RhqSCfEXNPQ0zH-O1PGk6xGEdvzsSxnfz9kJ5G4Ceg@mail.gmail.com> (raw)
In-Reply-To: <a9e436f8-34ec-123a-9c69-efabb4576bea@samsung.com>

Hi Andrzej,

On Mon, Apr 16, 2018 at 6:57 PM Andrzej Hajda <a.hajda@samsung.com> wrote:

> On 05.04.2018 11:49, Enric Balletbo i Serra wrote:
> > From: Tomasz Figa <tfiga@chromium.org>
> >
> > It looks like the driver subsystem detaches devices from power domains
> > at shutdown without consent of the drivers.

> It looks bit strange. Could you elaborate more on it. Could you show the
> code performing the detach?

It not only looks strange, but it is strange. The code was present in 4.4:

https://elixir.bootlin.com/linux/v4.4.128/source/drivers/base/platform.c#L553

but was apparently removed in 4.5:

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/base/platform.c?h=next-20180416&id=2d30bb0b3889adf09b342722b2ce596c0763bc93

So we might not need this patch anymore.

Best regards,
Tomasz

  reply	other threads:[~2018-04-16 13:17 UTC|newest]

Thread overview: 123+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-05  9:49 [PATCH v6 00/30] DRM Rockchip rk3399 (Kevin) Enric Balletbo i Serra
2018-04-05  9:49 ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 01/30] drm/bridge: analogix_dp: Move enable video into config_video() Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:37   ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 02/30] drm/bridge: analogix_dp: Check AUX_EN status when doing AUX transfer Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 03/30] drm/bridge: analogix_dp: Don't use fast link training when panel just powered up Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 04/30] drm/bridge: analogix_dp: Retry bridge enable when it failed Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 05/30] drm/bridge: analogix_dp: Wait for HPD signal before configuring link Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:37   ` Sasha Levin
2018-04-09  3:37     ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 06/30] drm/bridge: analogix_dp: Set PD_INC_BG first when powering up edp phy Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:36   ` Sasha Levin
2018-04-09  3:36     ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 07/30] drm/bridge: analogix_dp: Ensure edp is disabled when shutting down the panel Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:36   ` Sasha Levin
2018-04-09  3:36     ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 08/30] drm/bridge: analogix_dp: Extend hpd check time to 100ms Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 09/30] drm/bridge: analogix_dp: Fix incorrect usage of enhanced mode Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 10/30] drm/bridge: analogix_dp: Check dpcd write/read status Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 11/30] drm/bridge: analogix_dp: Fix AUX_PD bit for Rockchip Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 12/30] drm/bridge: analogix_dp: Reset aux channel if an error occurred Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 13/30] drm/rockchip: Restore psr->state when enable/disable psr failed Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 14/30] drm/bridge: analogix_dp: Don't use ANALOGIX_DP_PLL_CTL to control pll Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 15/30] drm/bridge: analogix_dp: Fix timeout of video streamclk config Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:36   ` Sasha Levin
2018-04-09  3:36     ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 16/30] drm/bridge: analogix_dp: Fix incorrect operations with register ANALOGIX_DP_FUNC_EN_1 Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:36   ` Sasha Levin
2018-04-09  3:36     ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 17/30] drm/bridge: analogix_dp: Move fast link training detect to set_bridge Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 18/30] drm/bridge: analogix_dp: Reorder plat_data->power_off to happen sooner Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:36   ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 19/30] drm/bridge: analogix_dp: Properly log AUX CH errors Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 20/30] drm/bridge: analogix_dp: Properly disable aux chan retries on rockchip Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 21/30] drm/rockchip: pre dither down when output bpc is 8bit Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:36   ` Sasha Levin
2018-04-09  3:36     ` Sasha Levin
2018-04-05  9:49 ` [PATCH v6 22/30] drm/bridge: analogix_dp: Split the platform-specific poweron in two parts Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 23/30] drm/rockchip: analogix_dp: Do not call Analogix code before bind Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-09  3:36   ` Sasha Levin
2018-04-09  3:36     ` Sasha Levin
2018-04-12  9:54   ` Andrzej Hajda
2018-04-12  9:54     ` Andrzej Hajda
2018-04-12  9:54     ` Andrzej Hajda
2018-04-05  9:49 ` [PATCH v6 24/30] drm/rockchip: Disable PSR on input events Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-16  7:19   ` Andrzej Hajda
2018-04-16  7:19     ` Andrzej Hajda
2018-04-16  7:19     ` Andrzej Hajda
2018-04-16 17:41     ` Dmitry Torokhov
2018-04-16 17:41       ` Dmitry Torokhov
2018-04-16 17:41       ` Dmitry Torokhov
2018-04-16 19:42   ` Ezequiel Garcia
2018-04-16 19:42     ` Ezequiel Garcia
2018-04-20 13:47   ` Andrzej Hajda
2018-04-20 13:47     ` Andrzej Hajda
2018-04-20 13:51     ` Enric Balletbo i Serra
2018-04-20 13:51       ` Enric Balletbo i Serra
2018-04-05  9:49 ` [PATCH v6 25/30] drm/rockchip: Cancel PSR enable work before changing the state Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-16  8:55   ` Andrzej Hajda
2018-04-16  8:55     ` Andrzej Hajda
2018-04-16  8:55     ` Andrzej Hajda
2018-04-05  9:49 ` [PATCH v6 26/30] drm/rockchip: psr: Avoid redundant calls to .set() callback Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-16  9:06   ` Andrzej Hajda
2018-04-16  9:06     ` Andrzej Hajda
2018-04-16  9:06     ` Andrzej Hajda
2018-04-05  9:49 ` [PATCH v6 27/30] drm/rockchip: psr: Sanitize semantics of allow/disallow API Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-16  9:26   ` Andrzej Hajda
2018-04-16  9:26     ` Andrzej Hajda
2018-04-16  9:26     ` Andrzej Hajda
2018-04-05  9:49 ` [PATCH v6 28/30] drm/rockchip: Disable PSR from reboot notifier Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-16  9:57   ` Andrzej Hajda
2018-04-16  9:57     ` Andrzej Hajda
2018-04-16  9:57     ` Andrzej Hajda
2018-04-16 13:12     ` Tomasz Figa [this message]
2018-04-16 13:12       ` Tomasz Figa
2018-04-16 13:12       ` Tomasz Figa
2018-04-18  9:18       ` Enric Balletbo Serra
2018-04-18  9:18         ` Enric Balletbo Serra
2018-04-18  9:18         ` Enric Balletbo Serra
2018-04-05  9:49 ` [PATCH v6 29/30] drm/rockchip: Disallow PSR for the whole atomic commit Enric Balletbo i Serra
2018-04-05  9:49   ` Enric Balletbo i Serra
2018-04-16  9:51   ` Andrzej Hajda
2018-04-16  9:51     ` Andrzej Hajda
2018-04-16  9:51     ` Andrzej Hajda
2018-04-05  9:50 ` [PATCH v6 30/30] drm/rockchip: psr: Remove flush by CRTC Enric Balletbo i Serra
2018-04-05  9:50   ` Enric Balletbo i Serra
2018-04-16  9:53   ` Andrzej Hajda
2018-04-16  9:53     ` Andrzej Hajda
2018-04-16  9:53     ` Andrzej Hajda

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