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path: root/drivers/video/via/lcd.c
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Diffstat (limited to 'drivers/video/via/lcd.c')
-rw-r--r--drivers/video/via/lcd.c117
1 files changed, 13 insertions, 104 deletions
diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
index 2ab0f156439a..fc25ae30c5f6 100644
--- a/drivers/video/via/lcd.c
+++ b/drivers/video/via/lcd.c
@@ -75,8 +75,6 @@ static void check_diport_of_integrated_lvds(
static struct display_timing lcd_centering_timging(struct display_timing
mode_crt_reg,
struct display_timing panel_crt_reg);
-static void viafb_load_scaling_factor_for_p4m900(int set_hres,
- int set_vres, int panel_hres, int panel_vres);
static int check_lvds_chip(int device_id_subaddr, int device_id)
{
@@ -89,33 +87,8 @@ static int check_lvds_chip(int device_id_subaddr, int device_id)
void viafb_init_lcd_size(void)
{
DEBUG_MSG(KERN_INFO "viafb_init_lcd_size()\n");
- DEBUG_MSG(KERN_INFO
- "viaparinfo->lvds_setting_info->get_lcd_size_method %d\n",
- viaparinfo->lvds_setting_info->get_lcd_size_method);
- switch (viaparinfo->lvds_setting_info->get_lcd_size_method) {
- case GET_LCD_SIZE_BY_SYSTEM_BIOS:
- break;
- case GET_LCD_SZIE_BY_HW_STRAPPING:
- break;
- case GET_LCD_SIZE_BY_VGA_BIOS:
- DEBUG_MSG(KERN_INFO "Get LCD Size method by VGA BIOS !!\n");
- fp_id_to_vindex(viafb_lcd_panel_id);
- DEBUG_MSG(KERN_INFO "LCD Panel_ID = %d\n",
- viaparinfo->lvds_setting_info->lcd_panel_id);
- break;
- case GET_LCD_SIZE_BY_USER_SETTING:
- DEBUG_MSG(KERN_INFO "Get LCD Size method by user setting !!\n");
- fp_id_to_vindex(viafb_lcd_panel_id);
- DEBUG_MSG(KERN_INFO "LCD Panel_ID = %d\n",
- viaparinfo->lvds_setting_info->lcd_panel_id);
- break;
- default:
- DEBUG_MSG(KERN_INFO "viafb_init_lcd_size fail\n");
- viaparinfo->lvds_setting_info->lcd_panel_id =
- LCD_PANEL_ID1_800X600;
- fp_id_to_vindex(LCD_PANEL_ID1_800X600);
- }
+ fp_id_to_vindex(viafb_lcd_panel_id);
viaparinfo->lvds_setting_info2->lcd_panel_id =
viaparinfo->lvds_setting_info->lcd_panel_id;
viaparinfo->lvds_setting_info2->lcd_panel_hres =
@@ -437,14 +410,9 @@ static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
/* LCD Scaling Enable */
viafb_write_reg_mask(CR79, VIACR, 0x07, BIT0 + BIT1 + BIT2);
- if (UNICHROME_P4M900 == viaparinfo->chip_info->gfx_chip_name) {
- viafb_load_scaling_factor_for_p4m900(set_hres, set_vres,
- panel_hres, panel_vres);
- return;
- }
/* Check if expansion for horizontal */
- if (set_hres != panel_hres) {
+ if (set_hres < panel_hres) {
/* Load Horizontal Scaling Factor */
switch (viaparinfo->chip_info->gfx_chip_name) {
case UNICHROME_CLE266:
@@ -464,6 +432,10 @@ static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
case UNICHROME_CX700:
case UNICHROME_K8M890:
case UNICHROME_P4M890:
+ case UNICHROME_P4M900:
+ case UNICHROME_CN750:
+ case UNICHROME_VX800:
+ case UNICHROME_VX855:
reg_value =
K800_LCD_HOR_SCF_FORMULA(set_hres, panel_hres);
/* Horizontal scaling enabled */
@@ -483,7 +455,7 @@ static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
}
/* Check if expansion for vertical */
- if (set_vres != panel_vres) {
+ if (set_vres < panel_vres) {
/* Load Vertical Scaling Factor */
switch (viaparinfo->chip_info->gfx_chip_name) {
case UNICHROME_CLE266:
@@ -503,6 +475,10 @@ static void load_lcd_scaling(int set_hres, int set_vres, int panel_hres,
case UNICHROME_CX700:
case UNICHROME_K8M890:
case UNICHROME_P4M890:
+ case UNICHROME_P4M900:
+ case UNICHROME_CN750:
+ case UNICHROME_VX800:
+ case UNICHROME_VX855:
reg_value =
K800_LCD_VER_SCF_FORMULA(set_vres, panel_vres);
/* Vertical scaling enabled */
@@ -648,9 +624,8 @@ void viafb_lcd_set_mode(struct crt_mode_table *mode_crt_table,
(mode_crt_reg, panel_crt_reg), IGA1);
} else {
/* Expansion */
- if ((plvds_setting_info->display_method ==
- LCD_EXPANDSION) & ((set_hres != panel_hres)
- || (set_vres != panel_vres))) {
+ if (plvds_setting_info->display_method == LCD_EXPANDSION
+ && (set_hres < panel_hres || set_vres < panel_vres)) {
/* expansion timing IGA2 loaded panel set timing*/
viafb_load_crtc_timing(panel_crt_reg, IGA2);
DEBUG_MSG(KERN_INFO "viafb_load_crtc_timing!!\n");
@@ -1139,69 +1114,3 @@ bool viafb_lcd_get_mobile_state(bool *mobile)
return false;
}
}
-
-static void viafb_load_scaling_factor_for_p4m900(int set_hres,
- int set_vres, int panel_hres, int panel_vres)
-{
- int h_scaling_factor;
- int v_scaling_factor;
- u8 cra2 = 0;
- u8 cr77 = 0;
- u8 cr78 = 0;
- u8 cr79 = 0;
- u8 cr9f = 0;
- /* Check if expansion for horizontal */
- if (set_hres < panel_hres) {
- /* Load Horizontal Scaling Factor */
-
- /* For VIA_K8M800 or later chipsets. */
- h_scaling_factor =
- K800_LCD_HOR_SCF_FORMULA(set_hres, panel_hres);
- /* HSCaleFactor[1:0] at CR9F[1:0] */
- cr9f = h_scaling_factor & 0x0003;
- /* HSCaleFactor[9:2] at CR77[7:0] */
- cr77 = (h_scaling_factor & 0x03FC) >> 2;
- /* HSCaleFactor[11:10] at CR79[5:4] */
- cr79 = (h_scaling_factor & 0x0C00) >> 10;
- cr79 <<= 4;
-
- /* Horizontal scaling enabled */
- cra2 = 0xC0;
-
- DEBUG_MSG(KERN_INFO "Horizontal Scaling value = %d\n",
- h_scaling_factor);
- } else {
- /* Horizontal scaling disabled */
- cra2 = 0x00;
- }
-
- /* Check if expansion for vertical */
- if (set_vres < panel_vres) {
- /* Load Vertical Scaling Factor */
-
- /* For VIA_K8M800 or later chipsets. */
- v_scaling_factor =
- K800_LCD_VER_SCF_FORMULA(set_vres, panel_vres);
-
- /* Vertical scaling enabled */
- cra2 |= 0x08;
- /* VSCaleFactor[0] at CR79[3] */
- cr79 |= ((v_scaling_factor & 0x0001) << 3);
- /* VSCaleFactor[8:1] at CR78[7:0] */
- cr78 |= (v_scaling_factor & 0x01FE) >> 1;
- /* VSCaleFactor[10:9] at CR79[7:6] */
- cr79 |= ((v_scaling_factor & 0x0600) >> 9) << 6;
-
- DEBUG_MSG(KERN_INFO "Vertical Scaling value = %d\n",
- v_scaling_factor);
- } else {
- /* Vertical scaling disabled */
- cra2 |= 0x00;
- }
-
- viafb_write_reg_mask(CRA2, VIACR, cra2, BIT3 + BIT6 + BIT7);
- viafb_write_reg_mask(CR77, VIACR, cr77, 0xFF);
- viafb_write_reg_mask(CR78, VIACR, cr78, 0xFF);
- viafb_write_reg_mask(CR79, VIACR, cr79, 0xF8);
- viafb_write_reg_mask(CR9F, VIACR, cr9f, BIT0 + BIT1);
-}