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Message-ID: <20231016165355.1327217-11-dmitry.baryshkov@linaro.org>
Date: Mon, 16 Oct 2023 19:53:55 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Dave Stevenson <dave.stevenson@...pberrypi.com>,
Andrzej Hajda <andrzej.hajda@...el.com>,
Neil Armstrong <neil.armstrong@...aro.org>,
Robert Foss <rfoss@...nel.org>,
Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
Jonas Karlman <jonas@...boo.se>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Douglas Anderson <dianders@...omium.org>,
Rob Clark <robdclark@...il.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>,
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Jessica Zhang <quic_jesszhan@...cinc.com>
Cc: Marek Vasut <marex@...x.de>, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
freedreno@...ts.freedesktop.org
Subject: [RFC PATCH 10/10] drm/msm/dsi: drop (again) the ps8640 workaround
Now as the Parade PS8640 driver sets the MIPI_DSI_MANUAL_POWERUP flag,
drop the workaround enforcing the late DSI link powerup in the case the
next bridge is ps8640.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
drivers/gpu/drm/msm/dsi/dsi_manager.c | 20 --------------------
1 file changed, 20 deletions(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index 2d7040d21239..b6b8171cf382 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -198,29 +198,12 @@ static int dsi_mgr_bridge_get_id(struct drm_bridge *bridge)
return dsi_bridge->id;
}
-/*
- * If the next bridge in the chain is the Parade ps8640 bridge chip then don't
- * power on early since it seems to violate the expectations of the firmware
- * that the bridge chip is running.
- */
-static bool dsi_mgr_next_is_ps8640(struct drm_bridge *bridge)
-{
- struct drm_bridge *next_bridge = drm_bridge_get_next_bridge(bridge);
-
- return next_bridge &&
- next_bridge->of_node &&
- of_device_is_compatible(next_bridge->of_node, "parade,ps8640");
-}
-
static bool dsi_mgr_auto_powerup(struct drm_bridge *bridge)
{
int id = dsi_mgr_bridge_get_id(bridge);
struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
struct mipi_dsi_host *host = msm_dsi->host;
- if (dsi_mgr_next_is_ps8640(bridge))
- return true;
-
return msm_dsi_host_auto_powerup(host);
}
@@ -230,9 +213,6 @@ static bool dsi_mgr_early_powerup(struct drm_bridge *bridge)
struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id);
struct mipi_dsi_host *host = msm_dsi->host;
- if (dsi_mgr_next_is_ps8640(bridge))
- return false;
-
return msm_dsi_host_early_powerup(host);
}
--
2.42.0
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