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Commit Graph

11 Commits

Author SHA1 Message Date
Geert Uytterhoeven
053b514295 m68k: atari: Rename shifter to shifter_st to avoid conflict
When test-compiling the BCM2835 pin control driver on m68k:

    In file included from arch/m68k/include/asm/io_mm.h:32:0,
                     from arch/m68k/include/asm/io.h:8,
                     from include/linux/io.h:13,
                     from include/linux/irq.h:20,
                     from include/linux/gpio/driver.h:7,
                     from drivers/pinctrl/bcm/pinctrl-bcm2835.c:17:
    drivers/pinctrl/bcm/pinctrl-bcm2835.c: In function 'bcm2711_pull_config_set':
    arch/m68k/include/asm/atarihw.h:190:22: error: expected identifier or '(' before 'volatile'
     # define shifter ((*(volatile struct SHIFTER *)SHF_BAS))

"shifter" is a too generic name for a global definition.

As the corresponding definition for Atari TT is already called
"shifter_tt", fix this by renaming the definition for Atari ST to
"shifter_st".

Reported-by: kbuild test robot <lkp@intel.com>
Suggested-by: Michael Schmitz <schmitzmic@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2019-08-19 13:24:10 +02:00
Bartlomiej Zolnierkiewicz
7e801d63fd video: fbdev: atafb: remove superfluous function prototypes
No need for them.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-06-07 14:38:06 +02:00
Geert Uytterhoeven
cbb91d5d48 fbdev: atafb: Modernize printing of kernel messages
Now the driver has been converted to a platform driver, the legacy
printk() calls without any log level can be replaced by proper dev_*()
calls.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-04-01 17:46:55 +02:00
Geert Uytterhoeven
80cf96357d fbdev: atafb: Fix broken frame buffer after kexec
On Falcon, Atari frame buffer initialization relies on preprogrammed
register values.  These register values are changed to blank the
console.

Hence when using kexec to boot into a new kernel while the console is
blanked, the new kernel cannot determine the current video
configuration, and the Atari frame buffer driver fails to initialize:

    atafb: phys_screen_base 6ce000 screen_len 4096

Fix this by doing a straight-forward conversion of the driver to a
platform device driver, and adding a shutdown handler that unblanks the
display.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-04-01 17:46:55 +02:00
Geert Uytterhoeven
577eabb2cb fbdev: atafb: Remove obsolete module support
CONFIG_FB_ATARI is bool, hence the Atari frame buffer driver cannot be
built as a module.  In addition, the module support code refers to a
function atafb_deinit(), which never existed.

Replace module_init() by device_initcall().

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-04-01 17:46:55 +02:00
Geert Uytterhoeven
e4bedbb625 fbdev: atafb: Stop printing virtual screen_base
Printing (hashed) virtual addresses is useless.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
2019-04-01 17:46:54 +02:00
Rasmus Villemoes
2f9ba65d9d fbdev: kill fb_rotate
The fb_rotate method in struct fb_ops is never actually invoked, and
it's been that way in the entire history of git (in fact, the last
occurrence of the string '->fb_rotate' vanished over 10 years ago,
with b4d8aea6d6, and that merely tested whether the callback
existed). So remove some dead code and make struct fb_obs a little
smaller.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-02-26 13:28:35 +02:00
Toshi Kani
c7c95f19f3 video/fbdev, asm/io.h: Remove ioremap_writethrough()
Replace all calls to ioremap_writethrough() with ioremap_wt().
Remove ioremap_writethrough() too.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Elliott@hp.com
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arnd@arndb.de
Cc: hch@lst.de
Cc: hmh@hmh.eng.br
Cc: jgross@suse.com
Cc: konrad.wilk@oracle.com
Cc: linux-mm <linux-mm@kvack.org>
Cc: linux-nvdimm@lists.01.org
Cc: stefan.bader@canonical.com
Cc: yigal@plexistor.com
Link: http://lkml.kernel.org/r/1433436928-31903-10-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2015-06-07 15:28:57 +02:00
Geert Uytterhoeven
1fc65d5124 video: atafb: Remove obsolete IRQ_TYPE_PRIO
IRQ_TYPE_PRIO is no longer used by the Atari platform interrupt code
since commit 734085651c ("[PATCH] m68k: convert atari irq code")
in v2.6.18-rc1, so drop it.

Note that its value has been reused for a different purpose
(IRQ_TYPE_EDGE_FALLING) since commit 6a6de9ef58 ("[PATCH] genirq:
core") in v2.6.18-rc1.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2015-01-15 13:44:51 +01:00
Michael Schmitz
cf8c8781d9 m68k/atari - atafb: convert allocation of fb ram to new interface
The new atari_stram_alloc interface returns kernel virtual addresses
even if the kernel runs in FastRAM. These addresses are not
guaranteed to be identical with the physical addresses. Since ST-RAM
mappings have not been set up by mem_init, virt_to_phys() and its
cousin do not work and the atari_stram_to_phys() etc. helpers must
be used to determine physical addresses.

fb.fix->smem_start needs physical addresses, fb.par->screen_base
needs virtual addresses. Take care of the virt-to-phys conversion
both on fb init and par changes.

Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
2014-05-26 22:41:24 +02:00
Tomi Valkeinen
f7018c2135 video: move fbdev to drivers/video/fbdev
The drivers/video directory is a mess. It contains generic video related
files, directories for backlight, console, linux logo, lots of fbdev
device drivers, fbdev framework files.

Make some order into the chaos by creating drivers/video/fbdev
directory, and move all fbdev related files there.

No functionality is changed, although I guess it is possible that some
subtle Makefile build order related issue could be created by this
patch.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-04-17 08:10:19 +03:00