drm/mipi-dbi: Drop explicit drm_mode_config_cleanup call

Allows us to drop the drm_driver.release callback from all
drivers, and remove the mipi_dbi_release() function.

This is made possible by a preceeding patch which added a drmm_
cleanup action to drm_mode_config_init(), hence all we need to do to
ensure that drm_mode_config_cleanup() is run on final drm_device
cleanup is check the new error code for _init().

v2: Explain why this cleanup is possible (Laurent).

v3: Use drmm_mode_config_init() for more clarity (Sam, Thomas)

Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org> (v2)
Tested-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Eric Anholt <eric@anholt.net>
Cc: David Lechner <david@lechnology.com>
Cc: Kamlesh Gurudasani <kamlesh.gurudasani@gmail.com>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-49-daniel.vetter@ffwll.ch

diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index bef9319..bb27c82 100644 (file)
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@ -511,7 +511,7 @@ int mipi_dbi_dev_init_with_formats(struct mipi_dbi_dev *dbidev,
        if (!dbidev->dbi.command)
                return -EINVAL;
 
-       ret = drm_mode_config_init(drm);
+       ret = drmm_mode_config_init(drm);
        if (ret)
                return ret;
 
@@ -584,22 +584,6 @@ int mipi_dbi_dev_init(struct mipi_dbi_dev *dbidev,
 EXPORT_SYMBOL(mipi_dbi_dev_init);
 
 /**
- * mipi_dbi_release - DRM driver release helper
- * @drm: DRM device
- *
- * This function finalizes and frees &mipi_dbi.
- *
- * Drivers can use this as their &drm_driver->release callback.
- */
-void mipi_dbi_release(struct drm_device *drm)
-{
-       DRM_DEBUG_DRIVER("\n");
-
-       drm_mode_config_cleanup(drm);
-}
-EXPORT_SYMBOL(mipi_dbi_release);
-
-/**
  * mipi_dbi_hw_reset - Hardware reset of controller
  * @dbi: MIPI DBI structure
  *

diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c
index c88b843..af7f3d1 100644 (file)
--- a/drivers/gpu/drm/tiny/hx8357d.c
+++ b/drivers/gpu/drm/tiny/hx8357d.c
@@ -196,7 +196,6 @@ DEFINE_DRM_GEM_CMA_FOPS(hx8357d_fops);
 static struct drm_driver hx8357d_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        .fops                   = &hx8357d_fops,
-       .release                = mipi_dbi_release,
        DRM_GEM_CMA_VMAP_DRIVER_OPS,
        .debugfs_init           = mipi_dbi_debugfs_init,
        .name                   = "hx8357d",

diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index fa998a1..118477a 100644 (file)
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -346,7 +346,6 @@ DEFINE_DRM_GEM_CMA_FOPS(ili9225_fops);
 static struct drm_driver ili9225_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        .fops                   = &ili9225_fops,
-       .release                = mipi_dbi_release,
        DRM_GEM_CMA_VMAP_DRIVER_OPS,
        .name                   = "ili9225",
        .desc                   = "Ilitek ILI9225",

diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c
index 945e151..e152de3 100644 (file)
--- a/drivers/gpu/drm/tiny/ili9341.c
+++ b/drivers/gpu/drm/tiny/ili9341.c
@@ -152,7 +152,6 @@ DEFINE_DRM_GEM_CMA_FOPS(ili9341_fops);
 static struct drm_driver ili9341_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        .fops                   = &ili9341_fops,
-       .release                = mipi_dbi_release,
        DRM_GEM_CMA_VMAP_DRIVER_OPS,
        .debugfs_init           = mipi_dbi_debugfs_init,
        .name                   = "ili9341",

diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c
index bf29b22..c4079bf 100644 (file)
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -165,7 +165,6 @@ DEFINE_DRM_GEM_CMA_FOPS(ili9486_fops);
 static struct drm_driver ili9486_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        .fops                   = &ili9486_fops,
-       .release                = mipi_dbi_release,
        DRM_GEM_CMA_VMAP_DRIVER_OPS,
        .debugfs_init           = mipi_dbi_debugfs_init,
        .name                   = "ili9486",

diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
index b8c973b..decaf57 100644 (file)
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ b/drivers/gpu/drm/tiny/mi0283qt.c
@@ -156,7 +156,6 @@ DEFINE_DRM_GEM_CMA_FOPS(mi0283qt_fops);
 static struct drm_driver mi0283qt_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        .fops                   = &mi0283qt_fops,
-       .release                = mipi_dbi_release,
        DRM_GEM_CMA_VMAP_DRIVER_OPS,
        .debugfs_init           = mipi_dbi_debugfs_init,
        .name                   = "mi0283qt",

diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index 1f1a576..c3295c7 100644 (file)
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -285,7 +285,6 @@ DEFINE_DRM_GEM_CMA_FOPS(st7586_fops);
 static struct drm_driver st7586_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        .fops                   = &st7586_fops,
-       .release                = mipi_dbi_release,
        DRM_GEM_CMA_VMAP_DRIVER_OPS,
        .debugfs_init           = mipi_dbi_debugfs_init,
        .name                   = "st7586",

diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index 1371005..c2c7dc0 100644 (file)
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -157,7 +157,6 @@ DEFINE_DRM_GEM_CMA_FOPS(st7735r_fops);
 static struct drm_driver st7735r_driver = {
        .driver_features        = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
        .fops                   = &st7735r_fops,
-       .release                = mipi_dbi_release,
        DRM_GEM_CMA_VMAP_DRIVER_OPS,
        .debugfs_init           = mipi_dbi_debugfs_init,
        .name                   = "st7735r",

diff --git a/include/drm/drm_mipi_dbi.h b/include/drm/drm_mipi_dbi.h
index 0ef0040..4d0e49c 100644 (file)
--- a/include/drm/drm_mipi_dbi.h
+++ b/include/drm/drm_mipi_dbi.h
@@ -152,7 +152,6 @@ int mipi_dbi_dev_init_with_formats(struct mipi_dbi_dev *dbidev,
 int mipi_dbi_dev_init(struct mipi_dbi_dev *dbidev,
                      const struct drm_simple_display_pipe_funcs *funcs,
                      const struct drm_display_mode *mode, unsigned int rotation);
-void mipi_dbi_release(struct drm_device *drm);
 void mipi_dbi_pipe_update(struct drm_simple_display_pipe *pipe,
                          struct drm_plane_state *old_state);
 void mipi_dbi_enable_flush(struct mipi_dbi_dev *dbidev,