[PATCH v2] media: vivid: drop CONFIG_FB dependency

[Guillaume Tucker]

Drop the vivid dependency on CONFIG_FB by compiling out parts of the
code that make use of the framebuffer API when not enabled.  This is
particularly useful as CONFIG_FB is not selected any more by
DRM_FBDEV_EMULATION.

Suggested-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
Signed-off-by: Guillaume Tucker <guillaume.tucker@xxxxxxxxxxxxx>
---

Notes:
    Changes in v2:
    * fix Makefile conditional for when CONFIG_FB=m
    * compile-out bit 16 (framebuffer) when no CONFIG_FB

 drivers/media/test-drivers/vivid/Kconfig       | 5 +----
 drivers/media/test-drivers/vivid/Makefile      | 5 ++++-
 drivers/media/test-drivers/vivid/vivid-core.c  | 9 +++++++++
 drivers/media/test-drivers/vivid/vivid-ctrls.c | 4 ++++
 4 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/drivers/media/test-drivers/vivid/Kconfig b/drivers/media/test-drivers/vivid/Kconfig
index c3abde2986b2..06ad350f1903 100644
--- a/drivers/media/test-drivers/vivid/Kconfig
+++ b/drivers/media/test-drivers/vivid/Kconfig
@@ -1,13 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0-only
 config VIDEO_VIVID
 	tristate "Virtual Video Test Driver"
-	depends on VIDEO_DEV && VIDEO_V4L2 && !SPARC32 && !SPARC64 && FB
+	depends on VIDEO_DEV && VIDEO_V4L2 && !SPARC32 && !SPARC64
 	depends on HAS_DMA
 	select FONT_SUPPORT
 	select FONT_8x16
-	select FB_CFB_FILLRECT
-	select FB_CFB_COPYAREA
-	select FB_CFB_IMAGEBLIT
 	select VIDEOBUF2_VMALLOC
 	select VIDEOBUF2_DMA_CONTIG
 	select VIDEO_V4L2_TPG
diff --git a/drivers/media/test-drivers/vivid/Makefile b/drivers/media/test-drivers/vivid/Makefile
index b12ad0152a3e..2ad634da7f88 100644
--- a/drivers/media/test-drivers/vivid/Makefile
+++ b/drivers/media/test-drivers/vivid/Makefile
@@ -3,10 +3,13 @@ vivid-objs := vivid-core.o vivid-ctrls.o vivid-vid-common.o vivid-vbi-gen.o \
 		vivid-vid-cap.o vivid-vid-out.o vivid-kthread-cap.o vivid-kthread-out.o \
 		vivid-radio-rx.o vivid-radio-tx.o vivid-radio-common.o \
 		vivid-rds-gen.o vivid-sdr-cap.o vivid-vbi-cap.o vivid-vbi-out.o \
-		vivid-osd.o vivid-meta-cap.o vivid-meta-out.o \
+		vivid-meta-cap.o vivid-meta-out.o \
 		vivid-kthread-touch.o vivid-touch-cap.o
 ifeq ($(CONFIG_VIDEO_VIVID_CEC),y)
   vivid-objs += vivid-cec.o
 endif
+ifneq ($(CONFIG_FB),)
+  vivid-objs += vivid-osd.o
+endif
 
 obj-$(CONFIG_VIDEO_VIVID) += vivid.o
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index d2bd2653cf54..7675962b9e93 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -126,7 +126,9 @@ MODULE_PARM_DESC(node_types, " node types, default is 0xe1d3d. Bitmask with the
 			     "\t\t    bit 8: Video Output node\n"
 			     "\t\t    bit 10-11: VBI Output node: 0 = none, 1 = raw vbi, 2 = sliced vbi, 3 = both\n"
 			     "\t\t    bit 12: Radio Transmitter node\n"
+#if IS_ENABLED(CONFIG_FB)
 			     "\t\t    bit 16: Framebuffer for testing overlays\n"
+#endif
 			     "\t\t    bit 17: Metadata Capture node\n"
 			     "\t\t    bit 18: Metadata Output node\n"
 			     "\t\t    bit 19: Touch Capture node\n");
@@ -1021,9 +1023,11 @@ static int vivid_detect_feature_set(struct vivid_dev *dev, int inst,
 	/* do we have a modulator? */
 	*has_modulator = dev->has_radio_tx;
 
+#if IS_ENABLED(CONFIG_FB)
 	if (dev->has_vid_cap)
 		/* do we have a framebuffer for overlay testing? */
 		dev->has_fb = node_type & 0x10000;
+#endif
 
 	/* can we do crop/compose/scaling while capturing? */
 	if (no_error_inj && *ccs_cap == -1)
@@ -1355,6 +1359,7 @@ static int vivid_create_queues(struct vivid_dev *dev)
 			return ret;
 	}
 
+#if IS_ENABLED(CONFIG_FB)
 	if (dev->has_fb) {
 		/* Create framebuffer for testing capture/output overlay */
 		ret = vivid_fb_init(dev);
@@ -1363,6 +1368,8 @@ static int vivid_create_queues(struct vivid_dev *dev)
 		v4l2_info(&dev->v4l2_dev, "Framebuffer device registered as fb%d\n",
 			  dev->fb_info.node);
 	}
+#endif
+
 	return 0;
 }
 
@@ -2069,12 +2076,14 @@ static int vivid_remove(struct platform_device *pdev)
 				video_device_node_name(&dev->radio_tx_dev));
 			video_unregister_device(&dev->radio_tx_dev);
 		}
+#if IS_ENABLED(CONFIG_FB)
 		if (dev->has_fb) {
 			v4l2_info(&dev->v4l2_dev, "unregistering fb%d\n",
 				dev->fb_info.node);
 			unregister_framebuffer(&dev->fb_info);
 			vivid_fb_release_buffers(dev);
 		}
+#endif
 		if (dev->has_meta_cap) {
 			v4l2_info(&dev->v4l2_dev, "unregistering %s\n",
 				  video_device_node_name(&dev->meta_cap_dev));
diff --git a/drivers/media/test-drivers/vivid/vivid-ctrls.c b/drivers/media/test-drivers/vivid/vivid-ctrls.c
index 8dc50fe22972..081470a1d88a 100644
--- a/drivers/media/test-drivers/vivid/vivid-ctrls.c
+++ b/drivers/media/test-drivers/vivid/vivid-ctrls.c
@@ -305,6 +305,7 @@ static const struct v4l2_ctrl_config vivid_ctrl_ro_int32 = {
 
 /* Framebuffer Controls */
 
+#if IS_ENABLED(CONFIG_FB)
 static int vivid_fb_s_ctrl(struct v4l2_ctrl *ctrl)
 {
 	struct vivid_dev *dev = container_of(ctrl->handler,
@@ -328,6 +329,7 @@ static const struct v4l2_ctrl_config vivid_ctrl_clear_fb = {
 	.name = "Clear Framebuffer",
 	.type = V4L2_CTRL_TYPE_BUTTON,
 };
+#endif /* IS_ENABLED(CONFIG_FB) */
 
 
 /* Video User Controls */
@@ -1761,8 +1763,10 @@ int vivid_create_controls(struct vivid_dev *dev, bool show_ccs_cap,
 	    (dev->has_vbi_cap && dev->has_vbi_out))
 		v4l2_ctrl_new_custom(hdl_loop_cap, &vivid_ctrl_loop_video, NULL);
 
+#if IS_ENABLED(CONFIG_FB)
 	if (dev->has_fb)
 		v4l2_ctrl_new_custom(hdl_fb, &vivid_ctrl_clear_fb, NULL);
+#endif
 
 	if (dev->has_radio_rx) {
 		v4l2_ctrl_new_custom(hdl_radio_rx, &vivid_ctrl_radio_hw_seek_mode, NULL);
-- 
2.20.1