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authorFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2010-09-07 01:24:52 +0000
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2010-09-24 02:15:01 +0000
commitc2a07c932dad49b3b80b11132183b8b2ec8ea1aa (patch)
treef78085e8c27eea71fd70ae90fd3c29583bdaf477 /drivers/video/via
parent2a9183923af1f6f4da66aeabf9fa5af0dc58ccec (diff)
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viafb: limit LCD code impact
This patch cleans the LCD code up. It forbids overwritting global decissions like what IGA should be used as the source and whether to enable the second display channel. Additionally it removes a bit code duplication. Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Joseph Chan <JosephChan@via.com.tw>
Diffstat (limited to 'drivers/video/via')
-rw-r--r--drivers/video/via/lcd.c31
1 files changed, 0 insertions, 31 deletions
diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
index e99f933faf19..b7d55350be06 100644
--- a/drivers/video/via/lcd.c
+++ b/drivers/video/via/lcd.c
@@ -818,19 +818,12 @@ void viafb_lcd_disable(void)
viafb_write_reg_mask(SR3D, VIASR, 0x00, 0x20);
/* 24 bit DI data paht off */
viafb_write_reg_mask(CR91, VIACR, 0x80, 0x80);
- /* Simultaneout disabled */
- viafb_write_reg_mask(CR6B, VIACR, 0x00, 0x08);
}
/* Disable expansion bit */
viafb_write_reg_mask(CR79, VIACR, 0x00, 0x01);
- /* CRT path set to IGA1 */
- viafb_write_reg_mask(SR16, VIASR, 0x00, 0x40);
/* Simultaneout disabled */
viafb_write_reg_mask(CR6B, VIACR, 0x00, 0x08);
- /* IGA2 path disabled */
- viafb_write_reg_mask(CR6A, VIACR, 0x00, 0x80);
-
}
static void set_lcd_output_path(int set_iga, int output_interface)
@@ -892,33 +885,9 @@ void viafb_lcd_enable(void)
viafb_write_reg_mask(SR3D, VIASR, 0x20, 0x20);
/* 24 bit DI data paht on */
viafb_write_reg_mask(CR91, VIACR, 0x00, 0x80);
-
- /* Set data source selection bit by iga path */
- if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
- /* DFP-H set to IGA1 */
- viafb_write_reg_mask(CR97, VIACR, 0x00, 0x10);
- /* DFP-L set to IGA1 */
- viafb_write_reg_mask(CR99, VIACR, 0x00, 0x10);
- } else {
- /* DFP-H set to IGA2 */
- viafb_write_reg_mask(CR97, VIACR, 0x10, 0x10);
- /* DFP-L set to IGA2 */
- viafb_write_reg_mask(CR99, VIACR, 0x10, 0x10);
- }
/* LCD enabled */
viafb_write_reg_mask(CR6A, VIACR, 0x48, 0x48);
}
-
- if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
- /* CRT path set to IGA2 */
- viafb_write_reg_mask(SR16, VIASR, 0x40, 0x40);
- /* IGA2 path disabled */
- viafb_write_reg_mask(CR6A, VIACR, 0x00, 0x80);
- /* IGA2 path enabled */
- } else { /* IGA2 */
- viafb_write_reg_mask(CR6A, VIACR, 0x80, 0x80);
- }
-
}
static void lcd_powersequence_off(void)