diff options
| author | Florian Tobias Schandinat | 2010-09-07 16:28:26 +0200 |
|---|---|---|
| committer | Florian Tobias Schandinat | 2010-09-24 04:15:03 +0200 |
| commit | 6f9422d4e407bd63a9bd665ea09e57c1e3800c47 (patch) | |
| tree | a8db0fe983bf177ed2653249aa55c9c846a0ce25 /drivers/video/via/lcd.c | |
| parent | viafb: limit LCD code impact (diff) | |
| download | kernel-qcow2-linux-6f9422d4e407bd63a9bd665ea09e57c1e3800c47.tar.gz kernel-qcow2-linux-6f9422d4e407bd63a9bd665ea09e57c1e3800c47.tar.xz kernel-qcow2-linux-6f9422d4e407bd63a9bd665ea09e57c1e3800c47.zip | |
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>
Diffstat (limited to 'drivers/video/via/lcd.c')
| -rw-r--r-- | drivers/video/via/lcd.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c index b7d55350be06..de19e4777daf 100644 --- a/drivers/video/via/lcd.c +++ b/drivers/video/via/lcd.c @@ -703,9 +703,6 @@ static void integrated_lvds_disable(struct lvds_setting_information viafb_write_reg_mask(CR91, VIACR, 0xC0, BIT6 + BIT7); } - /* Turn DFP High/Low Pad off. */ - viafb_write_reg_mask(SR2A, VIASR, 0, BIT0 + BIT1 + BIT2 + BIT3); - /* Power off LVDS channel. */ switch (plvds_chip_info->output_interface) { case INTERFACE_LVDS0: @@ -761,9 +758,6 @@ static void integrated_lvds_enable(struct lvds_setting_information break; } - /* Turn DFP High/Low pad on. */ - viafb_write_reg_mask(SR2A, VIASR, 0x0F, BIT0 + BIT1 + BIT2 + BIT3); - /* Power on LVDS channel. */ switch (plvds_chip_info->output_interface) { case INTERFACE_LVDS0: @@ -812,8 +806,6 @@ void viafb_lcd_disable(void) viafb_disable_lvds_vt1636(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info); } else { - /* DFP-HL pad off */ - viafb_write_reg_mask(SR2A, VIASR, 0x00, 0x0F); /* Backlight off */ viafb_write_reg_mask(SR3D, VIASR, 0x00, 0x20); /* 24 bit DI data paht off */ @@ -879,8 +871,6 @@ void viafb_lcd_enable(void) viafb_enable_lvds_vt1636(viaparinfo->lvds_setting_info, &viaparinfo->chip_info->lvds_chip_info); } else { - /* DFP-HL pad on */ - viafb_write_reg_mask(SR2A, VIASR, 0x0F, 0x0F); /* Backlight on */ viafb_write_reg_mask(SR3D, VIASR, 0x20, 0x20); /* 24 bit DI data paht on */ |