Messages in this thread Patch in this message |  | | From | "Luis R. Rodriguez" <> | Subject | [PATCH v4 3/6] video: fbdev: atyfb: move framebuffer length fudging to helper | Date | Wed, 29 Apr 2015 14:44:08 -0700 |
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From: "Luis R. Rodriguez" <mcgrof@suse.com>
The size of the framebuffer to be used needs to be fudged to account for the different type of devices that are out there. This captures what is required to do well, we'll resuse this later.
This has no functional changes.
Cc: Toshi Kani <toshi.kani@hp.com> Cc: Suresh Siddha <sbsiddha@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Juergen Gross <jgross@suse.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Airlie <airlied@redhat.com> Cc: Antonino Daplas <adaplas@gmail.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Rob Clark <robdclark@gmail.com> Cc: Mathias Krause <minipli@googlemail.com> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Ville Syrjälä <syrjala@sci.fi> Cc: Mel Gorman <mgorman@suse.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Borislav Petkov <bp@suse.de> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: linux-fbdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> --- drivers/video/fbdev/aty/atyfb_base.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-)
diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c index 8789e48..16936bb 100644 --- a/drivers/video/fbdev/aty/atyfb_base.c +++ b/drivers/video/fbdev/aty/atyfb_base.c @@ -427,6 +427,20 @@ static struct { #endif /* CONFIG_FB_ATY_CT */ }; +/* + * Last page of 8 MB (4 MB on ISA) aperture is MMIO, + * unless the auxiliary register aperture is used. + */ +static void aty_fudge_framebuffer_len(struct fb_info *info) +{ + struct atyfb_par *par = (struct atyfb_par *) info->par; + + if (!par->aux_start && + (info->fix.smem_len == 0x800000 || + (par->bus_type == ISA && info->fix.smem_len == 0x400000))) + info->fix.smem_len -= GUI_RESERVE; +} + static int correct_chipset(struct atyfb_par *par) { u8 rev; @@ -2603,14 +2617,7 @@ static int aty_init(struct fb_info *info) if (par->pll_ops->resume_pll) par->pll_ops->resume_pll(info, &par->pll); - /* - * Last page of 8 MB (4 MB on ISA) aperture is MMIO, - * unless the auxiliary register aperture is used. - */ - if (!par->aux_start && - (info->fix.smem_len == 0x800000 || - (par->bus_type == ISA && info->fix.smem_len == 0x400000))) - info->fix.smem_len -= GUI_RESERVE; + aty_fudge_framebuffer_len(info); /* * Disable register access through the linear aperture -- 2.3.2.209.gd67f9d5.dirty
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