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From: Boris Brezillon <boris.brezillon@collabora.com>
To: Andrzej Hajda <a.hajda@samsung.com>
Cc: Nikita Yushchenko <nikita.yoush@cogentembedded.com>,
	Jernej Skrabec <jernej.skrabec@siol.net>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Andrey Smirnov <andrew.smirnov@gmail.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	dri-devel@lists.freedesktop.org,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Thierry Reding <thierry.reding@gmail.com>,
	Chris Healy <Chris.Healy@zii.aero>,
	kernel@collabora.com, Sam Ravnborg <sam@ravnborg.org>
Subject: Re: [PATCH v2 04/21] drm/exynos: Fix potential unbalanced calls to pm_runtime_put
Date: Tue, 22 Oct 2019 19:23:23 +0200	[thread overview]
Message-ID: <20191022192323.37b54d99@collabora.com> (raw)
In-Reply-To: <19d2998a-1b54-f5c2-1c9c-3eeced8b6f6d@samsung.com>

On Fri, 11 Oct 2019 15:54:53 +0200
Andrzej Hajda <a.hajda@samsung.com> wrote:

> On 26.08.2019 17:26, Boris Brezillon wrote:
> > The encoder->enable() can't report errors and is expected to always
> > succeed. If we call pm_runtime_put() in the exynos_dsi_enable() error
> > path (as currently done) we'll have unbalanced get/put calls when
> > encoder->disable() is called.  
> 
> 
> True

I just realized this is actually not the case, because the
DSIM_STATE_ENABLED flag is cleared in the error path, and
exynos_dsi_disable() bails out early when DSIM_STATE_ENABLED is not set.
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  parent reply	other threads:[~2019-10-22 17:23 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-26 15:26 [PATCH v2 00/21] drm: Add support for bus-format negotiation Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 01/21] drm: Stop including drm_bridge.h from drm_crtc.h Boris Brezillon
2019-08-28 20:27   ` Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 02/21] drm: Add a dummy bridge object to drm_encoder Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 03/21] drm/vc4: Implement bridge_funcs instead of encoder_helper_funcs Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 04/21] drm/exynos: Fix potential unbalanced calls to pm_runtime_put Boris Brezillon
2019-10-11 13:31   ` Boris Brezillon
2019-10-11 13:54   ` Andrzej Hajda
2019-10-11 14:20     ` Boris Brezillon
2019-10-12  7:15       ` Sam Ravnborg
2019-10-22  9:14         ` Boris Brezillon
2019-10-22 17:23     ` Boris Brezillon [this message]
2019-08-26 15:26 ` [PATCH v2 05/21] drm/exynos: Don't reset bridge->next Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 06/21] drm/exynos: Implement bridge_funcs instead of encoder_helper_funcs Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 07/21] drm/bridge: Rename bridge helpers targeting a bridge chain Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 08/21] drm/msm: Use drm_attach_bridge() to attach a bridge to an encoder Boris Brezillon
2019-08-28 15:22   ` Sean Paul
2019-08-28 15:25     ` Boris Brezillon
2019-08-28 15:30       ` Sean Paul
2019-08-28 20:27         ` Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 09/21] drm/bridge: Introduce drm_bridge_chain_get_next_bridge() Boris Brezillon
2019-08-27  7:19   ` Neil Armstrong
2019-08-26 15:26 ` [PATCH v2 10/21] drm/bridge: Make the bridge chain a double-linked list Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 11/21] drm/bridge: Add the drm_for_each_bridge_in_chain() helper Boris Brezillon
2019-08-27  7:26   ` Neil Armstrong
2019-08-26 15:26 ` [PATCH v2 12/21] drm/bridge: Add a drm_bridge_state object Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 13/21] drm/bridge: Patch atomic hooks to take a drm_bridge_state Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 14/21] drm/bridge: Add an ->atomic_check() hook Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 15/21] drm/bridge: Add the drm_bridge_chain_get_prev_bridge() helper Boris Brezillon
2019-08-27  7:26   ` Neil Armstrong
2019-08-26 15:26 ` [PATCH v2 16/21] drm/bridge: Add the necessary bits to support bus format negotiation Boris Brezillon
2019-08-27  8:18   ` Neil Armstrong
2019-08-26 15:26 ` [PATCH v2 17/21] drm/imx: pd: Use bus format/flags provided by the bridge when available Boris Brezillon
2019-08-27  8:15   ` Philipp Zabel
2019-08-27  8:43     ` Boris Brezillon
2019-08-27  9:23       ` Philipp Zabel
2019-08-27  9:57         ` Boris Brezillon
2019-08-27 12:51           ` Philipp Zabel
2019-08-27 13:20             ` Boris Brezillon
2019-08-27 13:49               ` Philipp Zabel
2019-08-26 15:26 ` [PATCH v2 18/21] drm/bridge: lvds-encoder: Implement basic bus format negotiation Boris Brezillon
2019-08-26 16:15   ` Jernej Škrabec
2019-08-26 18:17     ` Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 19/21] drm/bridge: panel: Propage bus format/flags Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 20/21] drm/panel: simple: Add support for Toshiba LTA089AC29000 panel Boris Brezillon
2019-08-26 15:26 ` [PATCH v2 21/21] ARM: dts: imx: imx51-zii-rdu1: Fix the display pipeline definition Boris Brezillon

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