Various architectures provide <arm/fb.h> with helpers for fbdev framebuffer devices. Share the contained code where possible. There is already <asm-generic/fb.h>, which implements generic (as in 'empty') functions of the fbdev helpers. The header was added in commit aafe4dbed0bf ("asm-generic: add generic versions of common headers"), but never used.
Each per-architecture header file declares and/or implements fbdev helpers and defines a preprocessor token for each. The generic header then provides the remaining helpers. It works like the I/O helpers in <asm/io.h>. For PARISC, the architecture helpers are mixed up with helpers for the system's STI graphics firmware. We first move the STI code to appropriate locations under video/ and then move the architecture helper under arch/parisc. For Sparc, there's an additional patch that moves the implementation from the header into a source file. This allows to avoid some include statements in the header file. Built on arm, arm64, m68k, mips, parisc, powerpc, sparc and x86. Thomas Zimmermann (18): fbdev: Prepare generic architecture helpers arch/arc: Implement <asm/fb.h> with generic helpers arch/arm: Implement <asm/fb.h> with generic helpers arch/arm64: Implement <asm/fb.h> with generic helpers arch/ia64: Implement <asm/fb.h> with generic helpers arch/loongarch: Implement <asm/fb.h> with generic helpers arch/m68k: Implement <asm/fb.h> with generic helpers arch/mips: Implement <asm/fb.h> with generic helpers video: Remove trailing whitespaces video: Move HP PARISC STI core code to shared location arch/parisc: Remove trailing whitespaces arch/parisc: Implement fb_is_primary_device() under arch/parisc arch/parisc: Implement <asm/fb.h> with generic helpers arch/powerpc: Implement <asm/fb.h> with generic helpers arch/sh: Implement <asm/fb.h> with generic helpers arch/sparc: Implement fb_is_primary_device() in source file arch/sparc: Implement <asm/fb.h> with generic helpers arch/x86: Implement <asm/fb.h> with generic helpers arch/arc/include/asm/fb.h | 11 +- arch/arm/include/asm/fb.h | 10 +- arch/arm64/include/asm/fb.h | 10 +- arch/ia64/include/asm/fb.h | 11 +- arch/loongarch/include/asm/fb.h | 10 +- arch/m68k/include/asm/fb.h | 10 +- arch/mips/include/asm/fb.h | 10 +- arch/parisc/Makefile | 4 +- arch/parisc/include/asm/fb.h | 17 +- arch/parisc/video/Makefile | 3 + arch/parisc/video/fbdev.c | 27 +++ arch/powerpc/include/asm/fb.h | 8 +- arch/sh/include/asm/fb.h | 10 +- arch/sparc/Makefile | 1 + arch/sparc/include/asm/fb.h | 30 ++-- arch/sparc/video/Makefile | 3 + arch/sparc/video/fbdev.c | 24 +++ arch/x86/include/asm/fb.h | 11 +- drivers/video/Kconfig | 7 + drivers/video/Makefile | 1 + drivers/video/console/Kconfig | 1 + drivers/video/console/Makefile | 4 +- drivers/video/console/sticon.c | 6 +- drivers/video/fbdev/Kconfig | 3 +- drivers/video/fbdev/stifb.c | 158 +++++++++--------- drivers/video/{console => }/sticore.c | 123 ++++++-------- include/asm-generic/fb.h | 20 ++- .../video/fbdev => include/video}/sticore.h | 16 +- 28 files changed, 297 insertions(+), 252 deletions(-) create mode 100644 arch/parisc/video/Makefile create mode 100644 arch/parisc/video/fbdev.c create mode 100644 arch/sparc/video/Makefile create mode 100644 arch/sparc/video/fbdev.c rename drivers/video/{console => }/sticore.c (95%) rename {drivers/video/fbdev => include/video}/sticore.h (99%) base-commit: a7180debb9c631375684f4d717466cfb9f238660 -- 2.40.0