drm/msm: Remove fbdev from struct msm_drm_private

The DRM device stores a pointer to the fbdev helper. Remove struct
msm_drm_private.fbdev, which contains the same value. No functional
changes.

v2:
	* test for fb_helper->fb in debugfs code

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/530559/
Link: https://lore.kernel.org/r/20230403124538.8497-6-tzimmermann@suse.de
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

diff --git a/drivers/gpu/drm/msm/msm_debugfs.c b/drivers/gpu/drm/msm/msm_debugfs.c
index d6ecff0..7de9e39 100644 (file)
--- a/drivers/gpu/drm/msm/msm_debugfs.c
+++ b/drivers/gpu/drm/msm/msm_debugfs.c
@@ -241,12 +241,11 @@ static int msm_fb_show(struct seq_file *m, void *arg)
 {
        struct drm_info_node *node = (struct drm_info_node *) m->private;
        struct drm_device *dev = node->minor->dev;
-       struct msm_drm_private *priv = dev->dev_private;
        struct drm_framebuffer *fb, *fbdev_fb = NULL;
 
-       if (priv->fbdev) {
+       if (dev->fb_helper && dev->fb_helper->fb) {
                seq_printf(m, "fbcon ");
-               fbdev_fb = priv->fbdev->fb;
+               fbdev_fb = dev->fb_helper->fb;
                msm_framebuffer_describe(fbdev_fb, m);
        }
 

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 2119060..856e436 100644 (file)
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -243,7 +243,7 @@ static int msm_drm_uninit(struct device *dev)
        msm_rd_debugfs_cleanup(priv);
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
-       if (fbdev && priv->fbdev)
+       if (fbdev && ddev->fb_helper)
                msm_fbdev_free(ddev);
 #endif
 
@@ -551,7 +551,7 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv)
 
 #ifdef CONFIG_DRM_FBDEV_EMULATION
        if (kms && fbdev)
-               priv->fbdev = msm_fbdev_init(ddev);
+               msm_fbdev_init(ddev);
 #endif
 
        ret = msm_debugfs_late_init(ddev);

diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 7936aa6..ddb681a 100644 (file)
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -129,8 +129,6 @@ struct msm_drm_private {
        bool is_a2xx;
        bool has_cached_coherent;
 
-       struct drm_fb_helper *fbdev;
-
        struct msm_rd_state *rd;       /* debugfs to dump all submits */
        struct msm_rd_state *hangrd;   /* debugfs to dump hanging submits */
        struct msm_perf_state *perf;

diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c
index 81a4ae1..0bd0cb8 100644 (file)
--- a/drivers/gpu/drm/msm/msm_fbdev.c
+++ b/drivers/gpu/drm/msm/msm_fbdev.c
@@ -122,7 +122,6 @@ static const struct drm_fb_helper_funcs msm_fb_helper_funcs = {
 /* initialize fbdev helper */
 struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev)
 {
-       struct msm_drm_private *priv = dev->dev_private;
        struct drm_fb_helper *helper;
        int ret;
 
@@ -142,8 +141,6 @@ struct drm_fb_helper *msm_fbdev_init(struct drm_device *dev)
        if (ret)
                goto fini;
 
-       priv->fbdev = helper;
-
        return helper;
 
 fini:
@@ -156,8 +153,7 @@ fail:
 
 void msm_fbdev_free(struct drm_device *dev)
 {
-       struct msm_drm_private *priv = dev->dev_private;
-       struct drm_fb_helper *helper = priv->fbdev;
+       struct drm_fb_helper *helper = dev->fb_helper;
        struct drm_framebuffer *fb = helper->fb;
 
        DBG();
@@ -176,5 +172,5 @@ void msm_fbdev_free(struct drm_device *dev)
        drm_fb_helper_unprepare(helper);
        kfree(helper);
 
-       priv->fbdev = NULL;
+       dev->fb_helper = NULL;
 }