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authorFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-08-07 11:13:39 +0000
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2011-08-07 11:22:32 +0000
commit4fbf4bfe6fb5460bfd4a18ca7c7f21ffec941b07 (patch)
treea733edd7b5580597afd91dc0e4287086ff26ad02 /drivers/video/via
parentebb29fb47e198787b8b47a74cb10334cd9647a9d (diff)
viafb: seperate hardware initialization
This patch splits the hardware initialization out of the modesetting function which will make it easier to make it conditional and not require starting from scratch for every mode change, which is especially annoying in dual framebuffer mode. This required some minor reordering but it should not influence its functionality. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/via')
-rw-r--r--drivers/video/via/hw.c48
1 files changed, 28 insertions, 20 deletions
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index 6845c82db3cb..76fad92600f0 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c
@@ -1769,24 +1769,9 @@ static u8 get_sync(struct fb_info *info)
return polarity;
}
-int viafb_setmode(struct VideoModeTable *vmode_tbl, int video_bpp,
- struct VideoModeTable *vmode_tbl1, int video_bpp1)
+static void hw_init(void)
{
- int i, j;
- int port;
- u32 devices = viaparinfo->shared->iga1_devices
- | viaparinfo->shared->iga2_devices;
- u8 value, index, mask;
- struct crt_mode_table *crt_timing;
- struct crt_mode_table *crt_timing1 = NULL;
- struct fb_var_screeninfo var2;
-
- device_screen_off();
- crt_timing = vmode_tbl->crtc;
-
- if (viafb_SAMM_ON == 1) {
- crt_timing1 = vmode_tbl1->crtc;
- }
+ int i;
inb(VIAStatus);
outb(0x00, VIAAR);
@@ -1825,9 +1810,8 @@ int viafb_setmode(struct VideoModeTable *vmode_tbl, int video_bpp,
break;
}
+ /* probably this should go to the scaling code one day */
viafb_write_regx(scaling_parameters, ARRAY_SIZE(scaling_parameters));
- device_off();
- via_set_state(devices, VIA_STATE_OFF);
/* Fill VPIT Parameters */
/* Write Misc Register */
@@ -1853,6 +1837,31 @@ int viafb_setmode(struct VideoModeTable *vmode_tbl, int video_bpp,
inb(VIAStatus);
outb(0x20, VIAAR);
+ load_fix_bit_crtc_reg();
+}
+
+int viafb_setmode(struct VideoModeTable *vmode_tbl, int video_bpp,
+ struct VideoModeTable *vmode_tbl1, int video_bpp1)
+{
+ int j;
+ int port;
+ u32 devices = viaparinfo->shared->iga1_devices
+ | viaparinfo->shared->iga2_devices;
+ u8 value, index, mask;
+ struct crt_mode_table *crt_timing;
+ struct crt_mode_table *crt_timing1 = NULL;
+ struct fb_var_screeninfo var2;
+
+ device_screen_off();
+ crt_timing = vmode_tbl->crtc;
+ if (viafb_SAMM_ON == 1)
+ crt_timing1 = vmode_tbl1->crtc;
+
+ device_off();
+ via_set_state(devices, VIA_STATE_OFF);
+
+ hw_init();
+
/* Update Patch Register */
if ((viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266
@@ -1868,7 +1877,6 @@ int viafb_setmode(struct VideoModeTable *vmode_tbl, int video_bpp,
}
}
- load_fix_bit_crtc_reg();
via_set_primary_pitch(viafbinfo->fix.line_length);
via_set_secondary_pitch(viafb_dual_fb ? viafbinfo1->fix.line_length
: viafbinfo->fix.line_length);