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staging: sm750fb: change definition of PANEL_FB_WIDTH fields 

Use stratight-forward defintion of PANEL_FB_WIDTH register fields and use
open-coded implementation for register manipulations

Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mike Rapoport 2016-02-10 18:34:12 +02:00 committed by Greg Kroah-Hartman
parent 4463690afc
commit 26a3cc907c
2 changed files with 7 additions and 6 deletions
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5
drivers/staging/sm750fb/ddk750_reg.h
View File

@ -833,8 +833,9 @@
#define PANEL_FB_ADDRESS_ADDRESS_MASK 0x1ffffff
#define PANEL_FB_WIDTH 0x080010
#define PANEL_FB_WIDTH_WIDTH 29:16
#define PANEL_FB_WIDTH_OFFSET 13:0
#define PANEL_FB_WIDTH_WIDTH_SHIFT 16
#define PANEL_FB_WIDTH_WIDTH_MASK (0x3fff << 16)
#define PANEL_FB_WIDTH_OFFSET_MASK 0x3fff
#define PANEL_WINDOW_WIDTH 0x080014
#define PANEL_WINDOW_WIDTH_WIDTH 27:16

8
drivers/staging/sm750fb/sm750_hw.c
View File

@ -313,10 +313,10 @@ int hw_sm750_crtc_setMode(struct lynxfb_crtc *crtc,
reg = var->xres * (var->bits_per_pixel >> 3);
/* crtc->channel is not equal to par->index on numeric,be aware of that */
reg = ALIGN(reg, crtc->line_pad);
POKE32(PANEL_FB_WIDTH,
FIELD_VALUE(0, PANEL_FB_WIDTH, WIDTH, reg)|
FIELD_VALUE(0, PANEL_FB_WIDTH, OFFSET, fix->line_length));
reg = (reg << PANEL_FB_WIDTH_WIDTH_SHIFT) &
PANEL_FB_WIDTH_WIDTH_MASK;
reg |= (fix->line_length & PANEL_FB_WIDTH_OFFSET_MASK);
POKE32(PANEL_FB_WIDTH, reg);
POKE32(PANEL_WINDOW_WIDTH,
FIELD_VALUE(0, PANEL_WINDOW_WIDTH, WIDTH, var->xres - 1)|