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From:   Maxime Ripard <maxime@cerno.tech>
To:     Jernej Skrabec <jernej.skrabec@gmail.com>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
        Chen-Yu Tsai <wens@csie.org>,
        Philipp Zabel <p.zabel@pengutronix.de>,
        Jerome Brunet <jbrunet@baylibre.com>,
        Samuel Holland <samuel@sholland.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Daniel Vetter <daniel@ffwll.ch>, Emma Anholt <emma@anholt.net>,
        David Airlie <airlied@linux.ie>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>,
        Kevin Hilman <khilman@baylibre.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Maxime Ripard <mripard@kernel.org>
Cc:     Maxime Ripard <maxime@cerno.tech>, linux-sunxi@lists.linux.dev,
        linux-kernel@vger.kernel.org, Phil Elwell <phil@raspberrypi.com>,
        Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>,
        linux-arm-kernel@lists.infradead.org,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Dave Stevenson <dave.stevenson@raspberrypi.com>,
        linux-amlogic@lists.infradead.org, dri-devel@lists.freedesktop.org,
        Dom Cobley <dom@raspberrypi.com>
Subject: [PATCH v1 31/35] drm/sun4i: tv: Add missing reset assertion
Date:   Fri, 29 Jul 2022 18:35:14 +0200
Message-Id: <20220728-rpi-analog-tv-properties-v1-31-3d53ae722097@cerno.tech>
In-Reply-To: <20220728-rpi-analog-tv-properties-v1-0-3d53ae722097@cerno.tech>
References: <20220728-rpi-analog-tv-properties-v1-0-3d53ae722097@cerno.tech>
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The reset line is deasserted at bind, and asserted if we ever encounter an
error there. However, it's never deasserted in unbind which will lead to a
resource unbalance.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

diff --git a/drivers/gpu/drm/sun4i/sun4i_tv.c b/drivers/gpu/drm/sun4i/sun4i_tv.c
index ad6a3739bfa9..74ff5ad6a8b9 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tv.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tv.c
@@ -605,6 +605,7 @@ static void sun4i_tv_unbind(struct device *dev, struct device *master,
 	drm_connector_cleanup(&tv->connector);
 	drm_encoder_cleanup(&tv->encoder);
 	clk_disable_unprepare(tv->clk);
+	reset_control_assert(tv->reset);
 }
 
 static const struct component_ops sun4i_tv_ops = {

-- 
b4 0.10.0-dev-49460