viafb: cosmetic cleanup of function integrated_lvds_enable()

A humble attempt to simplify the coding style to improve readability

Signed-off-by: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: Scott Fang <ScottFang@viatech.com.cn>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 14 insertions, 26 deletions

diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
index e3e597f937a5..09353e2b92f6 100644
--- a/drivers/video/via/lcd.c
+++ b/drivers/video/via/lcd.c
@@ -1134,45 +1134,33 @@ static void integrated_lvds_enable(struct lvds_setting_information
                             *plvds_setting_info,
                             struct lvds_chip_information *plvds_chip_info)
 {
-        bool turn_on_first_powersequence = false;
-        bool turn_on_second_powersequence = false;
-
         DEBUG_MSG(KERN_INFO "integrated_lvds_enable, out_interface:%d\n",
                   plvds_chip_info->output_interface);
         if (plvds_setting_info->lcd_mode == LCD_SPWG)
                 viafb_write_reg_mask(CRD2, VIACR, 0x00, BIT0 + BIT1);
-         else
+        else
                 viafb_write_reg_mask(CRD2, VIACR, 0x03, BIT0 + BIT1);
-        if (INTERFACE_LVDS0LVDS1 == plvds_chip_info->output_interface)
-                turn_on_first_powersequence = true;
-        if (INTERFACE_LVDS0 == plvds_chip_info->output_interface)
-                turn_on_first_powersequence = true;
-        if (INTERFACE_LVDS1 == plvds_chip_info->output_interface)
-                turn_on_second_powersequence = true;
-
-        if (turn_on_second_powersequence) {
-                /* Use second power sequence control: */
-
-                /* Use hardware control power sequence. */
-                viafb_write_reg_mask(CRD3, VIACR, 0, BIT0);
-
-                /* Turn on back light. */
-                viafb_write_reg_mask(CRD3, VIACR, 0, BIT6 + BIT7);
 
-                /* Turn on hardware power sequence. */
-                viafb_write_reg_mask(CRD4, VIACR, 0x02, BIT1);
-        }
-        if (turn_on_first_powersequence) {
+        switch (plvds_chip_info->output_interface) {
+        case INTERFACE_LVDS0LVDS1:
+        case INTERFACE_LVDS0:
                 /* Use first power sequence control: */
-
                 /* Use hardware control power sequence. */
                 viafb_write_reg_mask(CR91, VIACR, 0, BIT0);
-
                 /* Turn on back light. */
                 viafb_write_reg_mask(CR91, VIACR, 0, BIT6 + BIT7);
-
                 /* Turn on hardware power sequence. */
                 viafb_write_reg_mask(CR6A, VIACR, 0x08, BIT3);
+                break;
+        case INTERFACE_LVDS1:
+                /* Use second power sequence control: */
+                /* Use hardware control power sequence. */
+                viafb_write_reg_mask(CRD3, VIACR, 0, BIT0);
+                /* Turn on back light. */
+                viafb_write_reg_mask(CRD3, VIACR, 0, BIT6 + BIT7);
+                /* Turn on hardware power sequence. */
+                viafb_write_reg_mask(CRD4, VIACR, 0x02, BIT1);
+                break;
         }
 
         /* Turn DFP High/Low pad on. */