From: Maxime Ripard <maxime@cerno.tech>
To: Robert Foss <robert.foss@linaro.org>,
Andrzej Hajda <a.hajda@samsung.com>,
Daniel Vetter <daniel.vetter@intel.com>,
David Airlie <airlied@linux.ie>, Sam Ravnborg <sam@ravnborg.org>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Thomas Zimmermann <tzimmermann@suse.de>,
Maxime Ripard <maxime@cerno.tech>,
Neil Armstrong <narmstrong@baylibre.com>,
Jonas Karlman <jonas@kwiboo.se>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Thierry Reding <thierry.reding@gmail.com>,
Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Subject: [PATCH 05/10] drm/panel: Create attach and detach callbacks
Date: Tue, 20 Jul 2021 15:45:20 +0200 [thread overview]
Message-ID: <20210720134525.563936-6-maxime@cerno.tech> (raw)
In-Reply-To: <20210720134525.563936-1-maxime@cerno.tech>
In order to make the probe order expectation more consistent between
bridges, let's create attach and detach hooks for the panels as well to
match what is there for bridges.
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
drivers/gpu/drm/drm_panel.c | 20 ++++++++++++++++++++
include/drm/drm_panel.h | 6 ++++++
2 files changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c
index f634371c717a..23bca798a2f3 100644
--- a/drivers/gpu/drm/drm_panel.c
+++ b/drivers/gpu/drm/drm_panel.c
@@ -223,6 +223,26 @@ int drm_panel_get_modes(struct drm_panel *panel,
}
EXPORT_SYMBOL(drm_panel_get_modes);
+int drm_panel_attach(struct drm_panel *panel)
+{
+ if (!panel)
+ return -EINVAL;
+
+ if (panel->funcs && panel->funcs->attach)
+ return panel->funcs->attach(panel);
+
+ return -EOPNOTSUPP;
+}
+
+void drm_panel_detach(struct drm_panel *panel)
+{
+ if (!panel)
+ return;
+
+ if (panel->funcs && panel->funcs->detach)
+ panel->funcs->detach(panel);
+}
+
#ifdef CONFIG_OF
/**
* of_drm_find_panel - look up a panel using a device tree node
diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h
index 4602f833eb51..b9201d520754 100644
--- a/include/drm/drm_panel.h
+++ b/include/drm/drm_panel.h
@@ -68,6 +68,9 @@ enum drm_panel_orientation;
* does not need to implement the functionality to enable/disable backlight.
*/
struct drm_panel_funcs {
+ int (*attach)(struct drm_panel *panel);
+ void (*detach)(struct drm_panel *panel);
+
/**
* @prepare:
*
@@ -180,6 +183,9 @@ void drm_panel_init(struct drm_panel *panel, struct device *dev,
void drm_panel_add(struct drm_panel *panel);
void drm_panel_remove(struct drm_panel *panel);
+int drm_panel_attach(struct drm_panel *panel);
+void drm_panel_detach(struct drm_panel *panel);
+
int drm_panel_prepare(struct drm_panel *panel);
int drm_panel_unprepare(struct drm_panel *panel);
--
2.31.1
next prev parent reply other threads:[~2021-07-20 13:53 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-20 13:45 [PATCH 00/10] drm/bridge: Make panel and bridge probe order consistent Maxime Ripard
2021-07-20 13:45 ` [PATCH 01/10] Revert "drm/vc4: dsi: Only register our component once a DSI device is attached" Maxime Ripard
2021-07-20 13:45 ` [PATCH 02/10] drm/bridge: Add a function to abstract away panels Maxime Ripard
2021-07-22 7:49 ` Jagan Teki
2021-07-20 13:45 ` [PATCH 03/10] drm/bridge: Add documentation sections Maxime Ripard
2021-07-20 13:45 ` [PATCH 04/10] drm/bridge: Document the probe issue with MIPI-DSI bridges Maxime Ripard
2021-07-21 12:05 ` Daniel Vetter
2021-07-21 12:06 ` Daniel Vetter
2021-07-26 15:16 ` Maxime Ripard
2021-07-27 9:20 ` Daniel Vetter
2021-07-28 13:27 ` Maxime Ripard
2021-07-27 9:42 ` Jagan Teki
2021-07-28 13:35 ` Maxime Ripard
2021-08-05 12:19 ` Jagan Teki
2021-07-20 13:45 ` Maxime Ripard [this message]
2021-07-22 7:53 ` [PATCH 05/10] drm/panel: Create attach and detach callbacks Jagan Teki
2021-07-20 13:45 ` [PATCH 06/10] drm/bridge: panel: Call attach and detach for the panel Maxime Ripard
2021-07-20 13:45 ` [PATCH 07/10] drm/vc4: dsi: Switch to drm_of_get_next Maxime Ripard
2021-07-20 13:45 ` [PATCH 08/10] drm/panel: raspberrypi-touchscreen: Prevent double-free Maxime Ripard
[not found] ` <YPcFrKLq1dhTcOUL@ravnborg.org>
2021-07-22 9:38 ` Maxime Ripard
2021-07-20 13:45 ` [PATCH 09/10] drm/panel: raspberrypi-touchscreen: Use the attach hook Maxime Ripard
2021-07-20 13:45 ` [PATCH 10/10] drm/panel: raspberrypi-touchscreen: Remove MIPI-DSI driver Maxime Ripard
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