linux-kernel - [PATCH 32/40] drm/bridge: analogix_dp: Add analogix_dp

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Date:   Mon, 15 Jan 2018 18:16:06 +0100
From:   Thierry Escande <thierry.escande@...labora.com>
To:     Archit Taneja <architt@...eaurora.org>,
        Inki Dae <inki.dae@...sung.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Sandy Huang <hjc@...k-chips.com>,
        Sean Paul <seanpaul@...omium.org>,
        David Airlie <airlied@...ux.ie>
Cc:     Tomasz Figa <tfiga@...omium.org>, Haixia Shi <hshi@...omium.org>,
        Ørjan Eide <orjan.eide@....com>,
        zain wang <wzz@...k-chips.com>,
        Yakir Yang <ykk@...k-chips.com>, Lin Huang <hl@...k-chips.com>,
        Douglas Anderson <dianders@...omium.org>,
        Mark Yao <mark.yao@...k-chips.com>,
        linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH 32/40] drm/bridge: analogix_dp: Add analogix_dp_shutdown

From: Tomasz Figa <tfiga@...omium.org>

This patch adds a function that master driver can call at shutdown time
in case there is some cleanup work to do. The function will then call
back to platform_data .cleanup() callback to let the master driver do
the platform-specific work.

Cc: Kristian H. Kristensen <hoegsberg@...omium.org>
Cc: Brian Norris <briannorris@...omium.org>
Signed-off-by: Tomasz Figa <tfiga@...omium.org>
Signed-off-by: Sean Paul <seanpaul@...omium.org>
Signed-off-by: Thierry Escande <thierry.escande@...labora.com>
---
 drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 7 +++++++
 include/drm/bridge/analogix_dp.h                   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index 2d44ef2fc3d2..a83140fa3448 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1671,6 +1671,13 @@ void analogix_dp_unbind(struct analogix_dp_device *dp)
 }
 EXPORT_SYMBOL_GPL(analogix_dp_unbind);
 
+void analogix_dp_shutdown(struct analogix_dp_device *dp)
+{
+	if (dp->plat_data->cleanup)
+		dp->plat_data->cleanup(dp->plat_data);
+}
+EXPORT_SYMBOL_GPL(analogix_dp_shutdown);
+
 #ifdef CONFIG_PM
 int analogix_dp_suspend(struct analogix_dp_device *dp)
 {
diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
index 96a6af0823aa..ed3ae1b5bb65 100644
--- a/include/drm/bridge/analogix_dp.h
+++ b/include/drm/bridge/analogix_dp.h
@@ -52,6 +52,7 @@ struct analogix_dp_device *
 analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
 		 struct analogix_dp_plat_data *plat_data);
 void analogix_dp_unbind(struct analogix_dp_device *dp);
+void analogix_dp_shutdown(struct analogix_dp_device *dp);
 
 int analogix_dp_start_crc(struct drm_connector *connector);
 int analogix_dp_stop_crc(struct drm_connector *connector);
-- 
2.14.1