drm/mipi_dbi: Use drmm_add_final_kfree in all drivers

They all share mipi_dbi_release so we need to switch them all
together. With this we can drop the final kfree from the release
function.

Aside, I think we could perhaps have a tiny additional helper for
these mipi_dbi drivers, the first few lines around devm_drm_dev_init
are all the same (except for the drm_driver pointer).

Acked-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Noralf Trønnes <noralf@tronnes.org>
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>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200323144950.3018436-6-daniel.vetter@ffwll.ch

8 files changed, 14 insertions, 3 deletions

diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c
index ea929bc1e663..98d0af8376fd 100644
--- a/drivers/gpu/drm/drm_mipi_dbi.c
+++ b/drivers/gpu/drm/drm_mipi_dbi.c
@@ -589,13 +589,10 @@ EXPORT_SYMBOL(mipi_dbi_dev_init);
  */
 void mipi_dbi_release(struct drm_device *drm)
 {
-	struct mipi_dbi_dev *dbidev = drm_to_mipi_dbi_dev(drm);
-
 	DRM_DEBUG_DRIVER("\n");
 
 	drm_mode_config_cleanup(drm);
 	drm_dev_fini(drm);
-	kfree(dbidev);
 }
 EXPORT_SYMBOL(mipi_dbi_release);
 
diff --git a/drivers/gpu/drm/tiny/hx8357d.c b/drivers/gpu/drm/tiny/hx8357d.c
index 9af8ff84974f..42bc5dadcb1c 100644
--- a/drivers/gpu/drm/tiny/hx8357d.c
+++ b/drivers/gpu/drm/tiny/hx8357d.c
@@ -21,6 +21,7 @@
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
 #include <video/mipi_display.h>
@@ -236,6 +237,7 @@ static int hx8357d_probe(struct spi_device *spi)
 		kfree(dbidev);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, dbidev);
 
 	drm_mode_config_init(drm);
 
diff --git a/drivers/gpu/drm/tiny/ili9225.c b/drivers/gpu/drm/tiny/ili9225.c
index 802fb8dde1b6..aae88dc5b3f7 100644
--- a/drivers/gpu/drm/tiny/ili9225.c
+++ b/drivers/gpu/drm/tiny/ili9225.c
@@ -24,6 +24,7 @@
 #include <drm/drm_fourcc.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_rect.h>
 
@@ -387,6 +388,7 @@ static int ili9225_probe(struct spi_device *spi)
 		kfree(dbidev);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, dbidev);
 
 	drm_mode_config_init(drm);
 
diff --git a/drivers/gpu/drm/tiny/ili9341.c b/drivers/gpu/drm/tiny/ili9341.c
index 33b51dc7faa8..7d40cb4ff72b 100644
--- a/drivers/gpu/drm/tiny/ili9341.c
+++ b/drivers/gpu/drm/tiny/ili9341.c
@@ -20,6 +20,7 @@
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
 #include <video/mipi_display.h>
@@ -194,6 +195,7 @@ static int ili9341_probe(struct spi_device *spi)
 		kfree(dbidev);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, dbidev);
 
 	drm_mode_config_init(drm);
 
diff --git a/drivers/gpu/drm/tiny/ili9486.c b/drivers/gpu/drm/tiny/ili9486.c
index 532560aebb1e..9515eed2625c 100644
--- a/drivers/gpu/drm/tiny/ili9486.c
+++ b/drivers/gpu/drm/tiny/ili9486.c
@@ -19,6 +19,7 @@
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
 
@@ -208,6 +209,7 @@ static int ili9486_probe(struct spi_device *spi)
 		kfree(dbidev);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, dbidev);
 
 	drm_mode_config_init(drm);
 
diff --git a/drivers/gpu/drm/tiny/mi0283qt.c b/drivers/gpu/drm/tiny/mi0283qt.c
index e2cfd9a17143..8555a56bce8c 100644
--- a/drivers/gpu/drm/tiny/mi0283qt.c
+++ b/drivers/gpu/drm/tiny/mi0283qt.c
@@ -18,6 +18,7 @@
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_modeset_helper.h>
 #include <video/mipi_display.h>
@@ -198,6 +199,7 @@ static int mi0283qt_probe(struct spi_device *spi)
 		kfree(dbidev);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, dbidev);
 
 	drm_mode_config_init(drm);
 
diff --git a/drivers/gpu/drm/tiny/st7586.c b/drivers/gpu/drm/tiny/st7586.c
index 9ef559dd3191..427c2561f5f4 100644
--- a/drivers/gpu/drm/tiny/st7586.c
+++ b/drivers/gpu/drm/tiny/st7586.c
@@ -21,6 +21,7 @@
 #include <drm/drm_format_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 #include <drm/drm_rect.h>
 
@@ -328,6 +329,7 @@ static int st7586_probe(struct spi_device *spi)
 		kfree(dbidev);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, dbidev);
 
 	drm_mode_config_init(drm);
 
diff --git a/drivers/gpu/drm/tiny/st7735r.c b/drivers/gpu/drm/tiny/st7735r.c
index 3cd9b8d9888d..079097569540 100644
--- a/drivers/gpu/drm/tiny/st7735r.c
+++ b/drivers/gpu/drm/tiny/st7735r.c
@@ -21,6 +21,7 @@
 #include <drm/drm_fb_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_managed.h>
 #include <drm/drm_mipi_dbi.h>
 
 #define ST7735R_FRMCTR1		0xb1
@@ -209,6 +210,7 @@ static int st7735r_probe(struct spi_device *spi)
 		kfree(dbidev);
 		return ret;
 	}
+	drmm_add_final_kfree(drm, dbidev);
 
 	drm_mode_config_init(drm);