On parisc, change detection of the primary framebuffer to test for the Linux device instead of fbdev's fb_info in fb_is_primary_device(). Makes the test independent from fbdev. This patchset is part of a larger effort to clean up the low-level display handling. There are various functions that attempt to detect the system's primary framebuffer device, such as in vgaarb, [1] fbcon, [2] or fbmon. [3] This code should be unified in a single helper that implements the test. The function fb_is_primary_device() already does this, but requires fbdev on parisc. With the patchset applied, the parisc implementation tests directly with the Linux device. No fbdev is required. Patch 1 adds the framebuffer's Linux device to the STI ROM structures, which represents the graphics firmware. Patches 2 updates the stifb driver to refer to the correct Linux device. The device is used in patch 3 to change the test in fb_is_primary_device(). Patch 4 removes the obsolete fb_info from the STI ROM structures. A later patchset will update the interface of fb_is_primary_device() to receive a Linux device instead of an instance of fb_info. This involves several architectures, so it is better done in a separate patch. [1] https://elixir.bootlin.com/linux/v6.6/source/drivers/pci/vgaarb.c#L557 [2] https://elixir.bootlin.com/linux/v6.6/source/drivers/video/fbdev/core/fbcon.c#L2943 [3] https://elixir.bootlin.com/linux/v6.6/source/drivers/video/fbdev/core/fbmon.c#L1503 v2: * fix crash during driver initialization (Helge) Thomas Zimmermann (4): video/sticore: Store ROM device in STI struct fbdev/stifb: Allocate fb_info instance with framebuffer_alloc() arch/parisc: Detect primary video device from device instance video/sticore: Remove info field from STI struct arch/parisc/video/fbdev.c | 2 +- drivers/video/fbdev/stifb.c | 111 ++++++++++++++++++------------------ drivers/video/sticore.c | 5 ++ include/video/sticore.h | 6 +- 4 files changed, 66 insertions(+), 58 deletions(-) base-commit: 25232eb8a9ac7fa0dac7e846a4bf7fba2b6db39a -- 2.43.0
