[PATCH v3 81/81] drm/omapdrm: Run DRM default client setup
Thomas Zimmermann
tzimmermann at suse.de
Fri Aug 30 08:41:05 UTC 2024
Rework fbdev probing to support fbdev_probe in struct drm_driver
and remove the old fb_probe callback. Provide an initializer macro
for struct drm_driver that sets the callback according to the kernel
configuration.
Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.
The omapdrm driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.
Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Cc: Tomi Valkeinen <tomi.valkeinen at ideasonboard.com>
---
drivers/gpu/drm/omapdrm/omap_drv.c | 1 +
drivers/gpu/drm/omapdrm/omap_fbdev.c | 131 ++++++---------------------
drivers/gpu/drm/omapdrm/omap_fbdev.h | 8 ++
3 files changed, 38 insertions(+), 102 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
index 6598c9c08ba1..d6b368fa1722 100644
--- a/drivers/gpu/drm/omapdrm/omap_drv.c
+++ b/drivers/gpu/drm/omapdrm/omap_drv.c
@@ -647,6 +647,7 @@ static const struct drm_driver omap_drm_driver = {
.gem_prime_import = omap_gem_prime_import,
.dumb_create = omap_gem_dumb_create,
.dumb_map_offset = omap_gem_dumb_map_offset,
+ OMAP_FBDEV_DRIVER_OPS,
.ioctls = ioctls,
.num_ioctls = DRM_OMAP_NUM_IOCTLS,
.fops = &omapdriver_fops,
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.c b/drivers/gpu/drm/omapdrm/omap_fbdev.c
index 044e80403c3b..f4bd0c6e3f34 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.c
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.c
@@ -6,6 +6,7 @@
#include <linux/fb.h>
+#include <drm/drm_client_setup.h>
#include <drm/drm_drv.h>
#include <drm/drm_crtc_helper.h>
#include <drm/drm_fb_helper.h>
@@ -124,8 +125,32 @@ static const struct fb_ops omap_fb_ops = {
.fb_destroy = omap_fbdev_fb_destroy,
};
-static int omap_fbdev_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
+static int omap_fbdev_dirty(struct drm_fb_helper *helper, struct drm_clip_rect *clip)
+{
+ if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
+ return 0;
+
+ if (helper->fb->funcs->dirty)
+ return helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
+
+ return 0;
+}
+
+static const struct drm_fb_helper_funcs omap_fbdev_helper_funcs = {
+ .fb_dirty = omap_fbdev_dirty,
+};
+
+static struct drm_fb_helper *get_fb(struct fb_info *fbi)
+{
+ if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) {
+ /* these are not the fb's you're looking for */
+ return NULL;
+ }
+ return fbi->par;
+}
+
+int omap_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes)
{
struct drm_device *dev = helper->dev;
struct omap_drm_private *priv = dev->dev_private;
@@ -207,6 +232,7 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
DBG("fbi=%p, dev=%p", fbi, dev);
+ helper->funcs = &omap_fbdev_helper_funcs;
helper->fb = fb;
fbi->fbops = &omap_fb_ops;
@@ -253,94 +279,10 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
return ret;
}
-static int omap_fbdev_dirty(struct drm_fb_helper *helper, struct drm_clip_rect *clip)
-{
- if (!(clip->x1 < clip->x2 && clip->y1 < clip->y2))
- return 0;
-
- if (helper->fb->funcs->dirty)
- return helper->fb->funcs->dirty(helper->fb, NULL, 0, 0, clip, 1);
-
- return 0;
-}
-
-static const struct drm_fb_helper_funcs omap_fb_helper_funcs = {
- .fb_probe = omap_fbdev_create,
- .fb_dirty = omap_fbdev_dirty,
-};
-
-static struct drm_fb_helper *get_fb(struct fb_info *fbi)
-{
- if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) {
- /* these are not the fb's you're looking for */
- return NULL;
- }
- return fbi->par;
-}
-
-/*
- * struct drm_client
- */
-
-static void omap_fbdev_client_unregister(struct drm_client_dev *client)
-{
- struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
-
- if (fb_helper->info) {
- drm_fb_helper_unregister_info(fb_helper);
- } else {
- drm_client_release(&fb_helper->client);
- drm_fb_helper_unprepare(fb_helper);
- kfree(fb_helper);
- }
-}
-
-static int omap_fbdev_client_restore(struct drm_client_dev *client)
-{
- drm_fb_helper_lastclose(client->dev);
-
- return 0;
-}
-
-static int omap_fbdev_client_hotplug(struct drm_client_dev *client)
-{
- struct drm_fb_helper *fb_helper = drm_fb_helper_from_client(client);
- struct drm_device *dev = client->dev;
- int ret;
-
- if (dev->fb_helper)
- return drm_fb_helper_hotplug_event(dev->fb_helper);
-
- ret = drm_fb_helper_init(dev, fb_helper);
- if (ret)
- goto err_drm_err;
-
- ret = drm_fb_helper_initial_config(fb_helper);
- if (ret)
- goto err_drm_fb_helper_fini;
-
- return 0;
-
-err_drm_fb_helper_fini:
- drm_fb_helper_fini(fb_helper);
-err_drm_err:
- drm_err(dev, "Failed to setup fbdev emulation (ret=%d)\n", ret);
- return ret;
-}
-
-static const struct drm_client_funcs omap_fbdev_client_funcs = {
- .owner = THIS_MODULE,
- .unregister = omap_fbdev_client_unregister,
- .restore = omap_fbdev_client_restore,
- .hotplug = omap_fbdev_client_hotplug,
-};
-
void omap_fbdev_setup(struct drm_device *dev)
{
struct omap_drm_private *priv = dev->dev_private;
struct omap_fbdev *fbdev;
- struct drm_fb_helper *helper;
- int ret;
drm_WARN(dev, !dev->registered, "Device has not been registered.\n");
drm_WARN(dev, dev->fb_helper, "fb_helper is already set!\n");
@@ -353,20 +295,5 @@ void omap_fbdev_setup(struct drm_device *dev)
priv->fbdev = fbdev;
- helper = kzalloc(sizeof(*helper), GFP_KERNEL);
- if (!helper)
- return;
- drm_fb_helper_prepare(dev, helper, 32, &omap_fb_helper_funcs);
-
- ret = drm_client_init(dev, &helper->client, "fbdev", &omap_fbdev_client_funcs);
- if (ret)
- goto err_drm_client_init;
-
- drm_client_register(&helper->client);
-
- return;
-
-err_drm_client_init:
- drm_fb_helper_unprepare(helper);
- kfree(helper);
+ drm_client_setup(dev, NULL);
}
diff --git a/drivers/gpu/drm/omapdrm/omap_fbdev.h b/drivers/gpu/drm/omapdrm/omap_fbdev.h
index 74c691a8d45f..283e35b42ada 100644
--- a/drivers/gpu/drm/omapdrm/omap_fbdev.h
+++ b/drivers/gpu/drm/omapdrm/omap_fbdev.h
@@ -10,10 +10,18 @@
#define __OMAPDRM_FBDEV_H__
struct drm_device;
+struct drm_fb_helper;
+struct drm_fb_helper_surface_size;
#ifdef CONFIG_DRM_FBDEV_EMULATION
+int omap_fbdev_driver_fbdev_probe(struct drm_fb_helper *helper,
+ struct drm_fb_helper_surface_size *sizes);
+#define OMAP_FBDEV_DRIVER_OPS \
+ .fbdev_probe = omap_fbdev_driver_fbdev_probe
void omap_fbdev_setup(struct drm_device *dev);
#else
+#define OMAP_FBDEV_DRIVER_OPS \
+ .fbdev_probe = NULL
static inline void omap_fbdev_setup(struct drm_device *dev)
{
}
--
2.46.0
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