drm/pl111: Use drm_fb_cma_fbdev_init/fini()

Use drm_fb_cma_fbdev_init() and drm_fb_cma_fbdev_fini() which relies on
the fact that drm_device holds a pointer to the drm_fb_helper structure.
This means that the driver doesn't have to keep track of that.
Also use the drm_fb_helper functions directly.

Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20171115142001.45358-11-noralf@tronnes.org

diff --git a/drivers/gpu/drm/pl111/pl111_drm.h b/drivers/gpu/drm/pl111/pl111_drm.h
index 440f53e..07fa2cd 100644 (file)
--- a/drivers/gpu/drm/pl111/pl111_drm.h
+++ b/drivers/gpu/drm/pl111/pl111_drm.h
@@ -53,7 +53,6 @@ struct pl111_drm_dev_private {
        struct drm_panel *panel;
        struct drm_bridge *bridge;
        struct drm_simple_display_pipe pipe;
-       struct drm_fbdev_cma *fbdev;
 
        void *regs;
        u32 ienb;

diff --git a/drivers/gpu/drm/pl111/pl111_drv.c b/drivers/gpu/drm/pl111/pl111_drv.c
index 201d57d..acb738c 100644 (file)
--- a/drivers/gpu/drm/pl111/pl111_drv.c
+++ b/drivers/gpu/drm/pl111/pl111_drv.c
@@ -64,6 +64,7 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_gem_framebuffer_helper.h>
+#include <drm/drm_fb_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 #include <drm/drm_of.h>
 #include <drm/drm_bridge.h>
@@ -137,8 +138,7 @@ static int pl111_modeset_init(struct drm_device *dev)
 
        drm_mode_config_reset(dev);
 
-       priv->fbdev = drm_fbdev_cma_init(dev, 32,
-                                        dev->mode_config.num_connector);
+       drm_fb_cma_fbdev_init(dev, 32, 0);
 
        drm_kms_helper_poll_init(dev);
 
@@ -155,17 +155,10 @@ finish:
 
 DEFINE_DRM_GEM_CMA_FOPS(drm_fops);
 
-static void pl111_lastclose(struct drm_device *dev)
-{
-       struct pl111_drm_dev_private *priv = dev->dev_private;
-
-       drm_fbdev_cma_restore_mode(priv->fbdev);
-}
-
 static struct drm_driver pl111_drm_driver = {
        .driver_features =
                DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC,
-       .lastclose = pl111_lastclose,
+       .lastclose = drm_fb_helper_lastclose,
        .ioctls = NULL,
        .fops = &drm_fops,
        .name = "pl111",
@@ -281,8 +274,7 @@ static int pl111_amba_remove(struct amba_device *amba_dev)
        struct pl111_drm_dev_private *priv = drm->dev_private;
 
        drm_dev_unregister(drm);
-       if (priv->fbdev)
-               drm_fbdev_cma_fini(priv->fbdev);
+       drm_fb_cma_fbdev_fini(drm);
        if (priv->panel)
                drm_panel_bridge_remove(priv->bridge);
        drm_mode_config_cleanup(drm);