Thread (5 messages) flat view 5 messages, 5 authors, 2025-09-30

Re: [PATCH 1/2] fbdev/hyperv_fb: deprecate this in favor of Hyper-V DRM driver

From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2025-09-17 14:41:18
Also in: dri-devel, linux-hyperv, lkml


Am 17.09.25 um 16:03 schrieb Prasanna Kumar T S M:
The Hyper-V DRM driver is available since kernel version 5.14 and it
provides full KMS support and fbdev emulation via the DRM fbdev helpers.
Deprecate this driver in favor of Hyper-V DRM driver.

Signed-off-by: Prasanna Kumar T S M <redacted>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
quoted hunk ↗ jump to hunk
---
  drivers/video/fbdev/Kconfig     | 5 ++++-
  drivers/video/fbdev/hyperv_fb.c | 2 ++
  2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index c21484d15f0c..48c1c7417f6d 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -1773,13 +1773,16 @@ config FB_BROADSHEET
  	  a bridge adapter.
  
  config FB_HYPERV
-	tristate "Microsoft Hyper-V Synthetic Video support"
+	tristate "Microsoft Hyper-V Synthetic Video support (DEPRECATED)"
  	depends on FB && HYPERV
  	select DMA_CMA if HAVE_DMA_CONTIGUOUS && CMA
  	select FB_IOMEM_HELPERS_DEFERRED
  	help
  	  This framebuffer driver supports Microsoft Hyper-V Synthetic Video.
  
+	  This driver is deprecated, please use the Hyper-V DRM driver at
+	  drivers/gpu/drm/hyperv (CONFIG_DRM_HYPERV) instead.
+
  config FB_SIMPLE
  	tristate "Simple framebuffer support"
  	depends on FB
diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
index 75338ffc703f..c99e2ea4b3de 100644
--- a/drivers/video/fbdev/hyperv_fb.c
+++ b/drivers/video/fbdev/hyperv_fb.c
@@ -1357,6 +1357,8 @@ static int __init hvfb_drv_init(void)
  {
  	int ret;
  
+	pr_warn("Deprecated: use Hyper-V DRM driver instead\n");
+
  	if (fb_modesetting_disabled("hyper_fb"))
  		return -ENODEV;
  
-- 
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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