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Subject[PATCH] drm/rockchip: use generic fbdev setup
Date
The Rockchip fbdev code does not add anything compared to
drm_fbdev_generic_setup(); the one custom function for .fb_mmap does the
same thing as gem_prime_mmap which is called by the helper.

Signed-off-by: John Keeping <john@metanate.com>
---
drivers/gpu/drm/rockchip/Makefile | 1 -
drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 10 +-
drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 2 -
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 164 ------------------
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h | 24 ---
5 files changed, 2 insertions(+), 199 deletions(-)
delete mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
delete mode 100644 drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h

diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile
index 17a9e7eb2130..1a56f696558c 100644
--- a/drivers/gpu/drm/rockchip/Makefile
+++ b/drivers/gpu/drm/rockchip/Makefile
@@ -5,7 +5,6 @@

rockchipdrm-y := rockchip_drm_drv.o rockchip_drm_fb.o \
rockchip_drm_gem.o rockchip_drm_vop.o rockchip_vop_reg.o
-rockchipdrm-$(CONFIG_DRM_FBDEV_EMULATION) += rockchip_drm_fbdev.o

rockchipdrm-$(CONFIG_ROCKCHIP_ANALOGIX_DP) += analogix_dp-rockchip.o
rockchipdrm-$(CONFIG_ROCKCHIP_CDN_DP) += cdn-dp-core.o cdn-dp-reg.o
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
index 69c699459dce..20d81ae69828 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c
@@ -26,7 +26,6 @@

#include "rockchip_drm_drv.h"
#include "rockchip_drm_fb.h"
-#include "rockchip_drm_fbdev.h"
#include "rockchip_drm_gem.h"

#define DRIVER_NAME "rockchip"
@@ -159,10 +158,6 @@ static int rockchip_drm_bind(struct device *dev)

drm_mode_config_reset(drm_dev);

- ret = rockchip_drm_fbdev_init(drm_dev);
- if (ret)
- goto err_unbind_all;
-
/* init kms poll for handling hpd */
drm_kms_helper_poll_init(drm_dev);

@@ -170,10 +165,11 @@ static int rockchip_drm_bind(struct device *dev)
if (ret)
goto err_kms_helper_poll_fini;

+ drm_fbdev_generic_setup(drm_dev, 32);
+
return 0;
err_kms_helper_poll_fini:
drm_kms_helper_poll_fini(drm_dev);
- rockchip_drm_fbdev_fini(drm_dev);
err_unbind_all:
component_unbind_all(dev, drm_dev);
err_iommu_cleanup:
@@ -189,7 +185,6 @@ static void rockchip_drm_unbind(struct device *dev)

drm_dev_unregister(drm_dev);

- rockchip_drm_fbdev_fini(drm_dev);
drm_kms_helper_poll_fini(drm_dev);

drm_atomic_helper_shutdown(drm_dev);
@@ -203,7 +198,6 @@ DEFINE_DRM_GEM_FOPS(rockchip_drm_driver_fops);

static const struct drm_driver rockchip_drm_driver = {
.driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC,
- .lastclose = drm_fb_helper_lastclose,
.dumb_create = rockchip_gem_dumb_create,
.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
index aa0909e8edf9..143a48330f84 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.h
@@ -43,8 +43,6 @@ struct rockchip_crtc_state {
* @mm_lock: protect drm_mm on multi-threads.
*/
struct rockchip_drm_private {
- struct drm_fb_helper fbdev_helper;
- struct drm_gem_object *fbdev_bo;
struct iommu_domain *domain;
struct mutex mm_lock;
struct drm_mm mm;
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
deleted file mode 100644
index d8418dd39d0e..000000000000
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
+++ /dev/null
@@ -1,164 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
- * Author:Mark Yao <mark.yao@rock-chips.com>
- */
-
-#include <drm/drm.h>
-#include <drm/drm_fb_helper.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_prime.h>
-#include <drm/drm_probe_helper.h>
-
-#include "rockchip_drm_drv.h"
-#include "rockchip_drm_gem.h"
-#include "rockchip_drm_fb.h"
-#include "rockchip_drm_fbdev.h"
-
-#define PREFERRED_BPP 32
-#define to_drm_private(x) \
- container_of(x, struct rockchip_drm_private, fbdev_helper)
-
-static int rockchip_fbdev_mmap(struct fb_info *info,
- struct vm_area_struct *vma)
-{
- struct drm_fb_helper *helper = info->par;
- struct rockchip_drm_private *private = to_drm_private(helper);
-
- return drm_gem_prime_mmap(private->fbdev_bo, vma);
-}
-
-static const struct fb_ops rockchip_drm_fbdev_ops = {
- .owner = THIS_MODULE,
- DRM_FB_HELPER_DEFAULT_OPS,
- .fb_mmap = rockchip_fbdev_mmap,
- .fb_fillrect = drm_fb_helper_cfb_fillrect,
- .fb_copyarea = drm_fb_helper_cfb_copyarea,
- .fb_imageblit = drm_fb_helper_cfb_imageblit,
-};
-
-static int rockchip_drm_fbdev_create(struct drm_fb_helper *helper,
- struct drm_fb_helper_surface_size *sizes)
-{
- struct rockchip_drm_private *private = to_drm_private(helper);
- struct drm_mode_fb_cmd2 mode_cmd = { 0 };
- struct drm_device *dev = helper->dev;
- struct rockchip_gem_object *rk_obj;
- struct drm_framebuffer *fb;
- unsigned int bytes_per_pixel;
- unsigned long offset;
- struct fb_info *fbi;
- size_t size;
- int ret;
-
- bytes_per_pixel = DIV_ROUND_UP(sizes->surface_bpp, 8);
-
- mode_cmd.width = sizes->surface_width;
- mode_cmd.height = sizes->surface_height;
- mode_cmd.pitches[0] = sizes->surface_width * bytes_per_pixel;
- mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
- sizes->surface_depth);
-
- size = mode_cmd.pitches[0] * mode_cmd.height;
-
- rk_obj = rockchip_gem_create_object(dev, size, true);
- if (IS_ERR(rk_obj))
- return -ENOMEM;
-
- private->fbdev_bo = &rk_obj->base;
-
- fbi = drm_fb_helper_alloc_fbi(helper);
- if (IS_ERR(fbi)) {
- DRM_DEV_ERROR(dev->dev, "Failed to create framebuffer info.\n");
- ret = PTR_ERR(fbi);
- goto out;
- }
-
- helper->fb = rockchip_drm_framebuffer_init(dev, &mode_cmd,
- private->fbdev_bo);
- if (IS_ERR(helper->fb)) {
- DRM_DEV_ERROR(dev->dev,
- "Failed to allocate DRM framebuffer.\n");
- ret = PTR_ERR(helper->fb);
- goto out;
- }
-
- fbi->fbops = &rockchip_drm_fbdev_ops;
-
- fb = helper->fb;
- drm_fb_helper_fill_info(fbi, helper, sizes);
-
- offset = fbi->var.xoffset * bytes_per_pixel;
- offset += fbi->var.yoffset * fb->pitches[0];
-
- dev->mode_config.fb_base = 0;
- fbi->screen_base = rk_obj->kvaddr + offset;
- fbi->screen_size = rk_obj->base.size;
- fbi->fix.smem_len = rk_obj->base.size;
-
- DRM_DEBUG_KMS("FB [%dx%d]-%d kvaddr=%p offset=%ld size=%zu\n",
- fb->width, fb->height, fb->format->depth,
- rk_obj->kvaddr,
- offset, size);
-
- return 0;
-
-out:
- rockchip_gem_free_object(&rk_obj->base);
- return ret;
-}
-
-static const struct drm_fb_helper_funcs rockchip_drm_fb_helper_funcs = {
- .fb_probe = rockchip_drm_fbdev_create,
-};
-
-int rockchip_drm_fbdev_init(struct drm_device *dev)
-{
- struct rockchip_drm_private *private = dev->dev_private;
- struct drm_fb_helper *helper;
- int ret;
-
- if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector)
- return -EINVAL;
-
- helper = &private->fbdev_helper;
-
- drm_fb_helper_prepare(dev, helper, &rockchip_drm_fb_helper_funcs);
-
- ret = drm_fb_helper_init(dev, helper);
- if (ret < 0) {
- DRM_DEV_ERROR(dev->dev,
- "Failed to initialize drm fb helper - %d.\n",
- ret);
- return ret;
- }
-
- ret = drm_fb_helper_initial_config(helper, PREFERRED_BPP);
- if (ret < 0) {
- DRM_DEV_ERROR(dev->dev,
- "Failed to set initial hw config - %d.\n",
- ret);
- goto err_drm_fb_helper_fini;
- }
-
- return 0;
-
-err_drm_fb_helper_fini:
- drm_fb_helper_fini(helper);
- return ret;
-}
-
-void rockchip_drm_fbdev_fini(struct drm_device *dev)
-{
- struct rockchip_drm_private *private = dev->dev_private;
- struct drm_fb_helper *helper;
-
- helper = &private->fbdev_helper;
-
- drm_fb_helper_unregister_fbi(helper);
-
- if (helper->fb)
- drm_framebuffer_put(helper->fb);
-
- drm_fb_helper_fini(helper);
-}
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h
deleted file mode 100644
index 5fb7ac2371a8..000000000000
--- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
- * Author:Mark Yao <mark.yao@rock-chips.com>
- */
-
-#ifndef _ROCKCHIP_DRM_FBDEV_H
-#define _ROCKCHIP_DRM_FBDEV_H
-
-#ifdef CONFIG_DRM_FBDEV_EMULATION
-int rockchip_drm_fbdev_init(struct drm_device *dev);
-void rockchip_drm_fbdev_fini(struct drm_device *dev);
-#else
-static inline int rockchip_drm_fbdev_init(struct drm_device *dev)
-{
- return 0;
-}
-
-static inline void rockchip_drm_fbdev_fini(struct drm_device *dev)
-{
-}
-#endif
-
-#endif /* _ROCKCHIP_DRM_FBDEV_H */
--
2.33.1
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