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viafb: add primary/secondary clock on/off switches

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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>
This commit is contained in:
Florian Tobias Schandinat 2011-03-24 02:03:42 +00:00
parent 6c1093af58
commit c5593d26ae
1 changed files with 37 additions and 1 deletions
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38
drivers/video/via/hw.c
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@ -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)