Here's another patchset for deferred-I/O helpers. Update a number of fbdev drivers with deferred I/O to use fbdev's helper macros and Kconfig tokens. Generating and initializing via helpers macros will later allow for a fine-grained setup, depending on Kconfig options. For example, it will be possible to leave out file I/O if FB_DEVICE has not been set. Each driver in special in its own way. The smscufx and udlfb drivers support file I/O without damage updates. (That probably doesn't work correctly.) So they provide their own mmap code. The hyperv_fb driver sometimes operates on memory in I/O address spaces and fails to do damage handling correctly for write operations. The picolcd and fbtft drivers are outside of fbdev. Thomas Zimmermann (8): fbdev/smscufx: Use fb_ops helpers for deferred I/O fbdev/udlfb: Use fb_ops helpers for deferred I/O fbdev: Add Kconfig macro FB_IOMEM_HELPERS_DEFERRED fbdev/hyperv_fb: Use fb_ops helpers for deferred I/O hid: Remove trailing whitespace hid/picolcd: Use fb_ops helpers for deferred I/O staging/fbtft: Initialize fb_op struct as static const staging/fbtft: Use fb_ops helpers for deferred I/O drivers/hid/Kconfig | 8 +-- drivers/hid/hid-picolcd_fb.c | 73 ++++++---------------- drivers/staging/fbtft/Kconfig | 6 +- drivers/staging/fbtft/fbtft-core.c | 99 ++++++++---------------------- drivers/video/fbdev/Kconfig | 5 +- drivers/video/fbdev/core/Kconfig | 6 ++ drivers/video/fbdev/hyperv_fb.c | 48 +++++---------- drivers/video/fbdev/smscufx.c | 85 +++++++------------------ drivers/video/fbdev/udlfb.c | 89 +++++++-------------------- 9 files changed, 114 insertions(+), 305 deletions(-) -- 2.41.0
