diff options
| author | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-03-24 02:03:42 +0000 |
|---|---|---|
| committer | Florian Tobias Schandinat <FlorianSchandinat@gmx.de> | 2011-03-24 02:03:42 +0000 |
| commit | c5593d26aea3aba2a7703a0b5d74b4ea8b726889 (patch) | |
| tree | 47c0a0129777696d05780fa724d073464d6cccf1 /drivers/video/via | |
| parent | 6c1093af5833d4c69634711d9453287ab9e0cb77 (diff) | |
| download | blackbird-op-linux-c5593d26aea3aba2a7703a0b5d74b4ea8b726889.tar.gz blackbird-op-linux-c5593d26aea3aba2a7703a0b5d74b4ea8b726889.zip | |
viafb: add primary/secondary clock on/off switches
This patch adds functions to enable/disable the display clocks.
It also fixes a tiny bug that slipped in with a previous commit but
could not yet have caused any problems.
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Diffstat (limited to 'drivers/video/via')
| -rw-r--r-- | drivers/video/via/hw.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c index b38d3b40de95..712348df0f84 100644 --- a/drivers/video/via/hw.c +++ b/drivers/video/via/hw.c @@ -1409,6 +1409,42 @@ void viafb_load_FIFO_reg(int set_iga, int hor_active, int ver_active) } +static void set_primary_clock_state(u8 state) +{ + u8 value; + + switch (state) { + case VIA_STATE_ON: + value = 0x20; + break; + case VIA_STATE_OFF: + value = 0x00; + break; + default: + return; + } + + via_write_reg_mask(VIASR, 0x1B, value, 0x30); +} + +static void set_secondary_clock_state(u8 state) +{ + u8 value; + + switch (state) { + case VIA_STATE_ON: + value = 0x80; + break; + case VIA_STATE_OFF: + value = 0x00; + break; + default: + return; + } + + via_write_reg_mask(VIASR, 0x1B, value, 0xC0); +} + static void set_primary_pll_state(u8 state) { u8 value; @@ -1442,7 +1478,7 @@ static void set_secondary_pll_state(u8 state) return; } - via_write_reg_mask(VIASR, 0x2D, value, 0x08); + via_write_reg_mask(VIASR, 0x2D, value, 0x0C); } static u32 cle266_encode_pll(struct pll_config pll) |
