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From: Douglas Anderson <dianders@chromium.org>
To: Andrzej Hajda <a.hajda@samsung.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@siol.net>,
	Sam Ravnborg <sam@ravnborg.org>
Cc: Linus W <linus.walleij@linaro.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	robdclark@chromium.org, Stephen Boyd <swboyd@chromium.org>,
	Steev Klimaszewski <steev@kali.org>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	linux-arm-msm@vger.kernel.org,
	Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>,
	Douglas Anderson <dianders@chromium.org>,
	Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
	Robert Foss <robert.foss@linaro.org>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 05/12] drm/bridge: ti-sn65dsi86: Move drm_panel_unprepare() to post_disable()
Date: Fri,  2 Apr 2021 15:28:39 -0700	[thread overview]
Message-ID: <20210402152701.v3.5.Ia75c9ffe2a2582393a8532d244da86f18b4c9b21@changeid> (raw)
In-Reply-To: <20210402222846.2461042-1-dianders@chromium.org>

We prepared the panel in pre_enable() so we should unprepare it in
post_disable() to match.

This becomes important once we start using pre_enable() and
post_disable() to make sure things are powered on (and then off again)
when reading the EDID.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
---

(no changes since v1)

 drivers/gpu/drm/bridge/ti-sn65dsi86.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
index c006678c9921..e30460002c48 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c
@@ -452,8 +452,6 @@ static void ti_sn_bridge_disable(struct drm_bridge *bridge)
 	regmap_write(pdata->regmap, SN_ML_TX_MODE_REG, 0);
 	/* disable DP PLL */
 	regmap_write(pdata->regmap, SN_PLL_ENABLE_REG, 0);
-
-	drm_panel_unprepare(pdata->panel);
 }
 
 static u32 ti_sn_bridge_get_dsi_freq(struct ti_sn_bridge *pdata)
@@ -869,6 +867,8 @@ static void ti_sn_bridge_post_disable(struct drm_bridge *bridge)
 {
 	struct ti_sn_bridge *pdata = bridge_to_ti_sn_bridge(bridge);
 
+	drm_panel_unprepare(pdata->panel);
+
 	clk_disable_unprepare(pdata->refclk);
 
 	pm_runtime_put_sync(pdata->dev);
-- 
2.31.0.208.g409f899ff0-goog


  parent reply	other threads:[~2021-04-02 22:29 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-02 22:28 [PATCH v3 00/12] drm: Fix EDID reading on ti-sn65dsi86 Douglas Anderson
2021-04-02 22:28 ` [PATCH v3 01/12] drm/bridge: Fix the stop condition of drm_bridge_chain_pre_enable() Douglas Anderson
2021-04-05  0:49   ` Laurent Pinchart
2021-04-15  1:19     ` Doug Anderson
2021-04-15  1:56       ` Laurent Pinchart
2021-04-15 14:48         ` Doug Anderson
2021-04-02 22:28 ` [PATCH v3 02/12] drm/bridge: ti-sn65dsi86: Simplify refclk handling Douglas Anderson
2021-04-02 22:28 ` [PATCH v3 03/12] drm/bridge: ti-sn65dsi86: Remove incorrectly tagged kerneldoc comment Douglas Anderson
2021-04-05  0:50   ` Laurent Pinchart
2021-04-02 22:28 ` [PATCH v3 04/12] drm/bridge: ti-sn65dsi86: Reorder remove() Douglas Anderson
2021-04-05  0:52   ` Laurent Pinchart
2021-04-02 22:28 ` Douglas Anderson [this message]
2021-04-05  0:58   ` [PATCH v3 05/12] drm/bridge: ti-sn65dsi86: Move drm_panel_unprepare() to post_disable() Laurent Pinchart
2021-04-02 22:28 ` [PATCH v3 06/12] drm/bridge: ti-sn65dsi86: Get rid of the useless detect() function Douglas Anderson
2021-04-05  0:58   ` Laurent Pinchart
2021-04-02 22:28 ` [PATCH v3 07/12] drm/bridge: ti-sn65dsi86: Remove extra call: drm_connector_update_edid_property() Douglas Anderson
2021-04-05  1:01   ` Laurent Pinchart
2021-04-02 22:28 ` [PATCH v3 08/12] drm/bridge: ti-sn65dsi86: Power things properly for reading the EDID Douglas Anderson
2021-04-02 22:28 ` [PATCH v3 09/12] drm/bridge: ti-sn65dsi86: Fail aux transfers right away if not powered Douglas Anderson
2021-04-02 22:28 ` [PATCH v3 10/12] drm/bridge: ti-sn65dsi86: Read the EDID only if refclk was provided Douglas Anderson
2021-04-05  1:04   ` Laurent Pinchart
2021-04-02 22:28 ` [PATCH v3 11/12] drm/bridge: ti-sn65dsi86: Print an error if we fallback to panel modes Douglas Anderson
2021-04-05  1:04   ` Laurent Pinchart
2021-04-02 22:28 ` [PATCH v3 12/12] drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare Douglas Anderson
2021-04-15  0:58   ` Laurent Pinchart
2021-04-15  1:22     ` Doug Anderson
2021-04-15  1:30       ` Laurent Pinchart

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