viafb: introduce per output device power management

This patch moves common parts of dvi.c, lcd.c and vt1636.c to hw.c to
start a per output device power management. There should be no runtime
changes aside that this patch enables the proc interface to enable/disable
devices when needed which greatly increases the chances that changes to
the output device configuration will work. However the power management is
not yet complete so it might fail on some configurations. As this area is
quite complex and touches undocumented things there is a slight chance of
regressions.

Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Joseph Chan <JosephChan@via.com.tw>

1 files changed, 0 insertions, 56 deletions

diff --git a/drivers/video/via/vt1636.c b/drivers/video/via/vt1636.c
index d65bf1aee87c..90aad12c2c4d 100644
--- a/drivers/video/via/vt1636.c
+++ b/drivers/video/via/vt1636.c
@@ -92,34 +92,6 @@ void viafb_enable_lvds_vt1636(struct lvds_setting_information
 
         viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
                                  VDD_ON_TBL_VT1636[0]);
-
-        /* Pad on: */
-        switch (plvds_chip_info->output_interface) {
-        case INTERFACE_DVP0:
-                {
-                        viafb_write_reg_mask(SR1E, VIASR, 0xC0, 0xC0);
-                        break;
-                }
-
-        case INTERFACE_DVP1:
-                {
-                        viafb_write_reg_mask(SR1E, VIASR, 0x30, 0x30);
-                        break;
-                }
-
-        case INTERFACE_DFP_LOW:
-                {
-                        viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x03);
-                        break;
-                }
-
-        case INTERFACE_DFP_HIGH:
-                {
-                        viafb_write_reg_mask(SR2A, VIASR, 0x03, 0x0C);
-                        break;
-                }
-
-        }
 }
 
 void viafb_disable_lvds_vt1636(struct lvds_setting_information
@@ -129,34 +101,6 @@ void viafb_disable_lvds_vt1636(struct lvds_setting_information
 
         viafb_gpio_i2c_write_mask_lvds(plvds_setting_info, plvds_chip_info,
                                  VDD_OFF_TBL_VT1636[0]);
-
-        /* Pad off: */
-        switch (plvds_chip_info->output_interface) {
-        case INTERFACE_DVP0:
-                {
-                        viafb_write_reg_mask(SR1E, VIASR, 0x00, 0xC0);
-                        break;
-                }
-
-        case INTERFACE_DVP1:
-                {
-                        viafb_write_reg_mask(SR1E, VIASR, 0x00, 0x30);
-                        break;
-                }
-
-        case INTERFACE_DFP_LOW:
-                {
-                        viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x03);
-                        break;
-                }
-
-        case INTERFACE_DFP_HIGH:
-                {
-                        viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x0C);
-                        break;
-                }
-
-        }
 }
 
 bool viafb_lvds_identify_vt1636(u8 i2c_adapter)