diff options
Diffstat (limited to 'drivers/video/intelfb/intelfbhw.c')
| -rw-r--r-- | drivers/video/intelfb/intelfbhw.c | 104 |
1 files changed, 32 insertions, 72 deletions
diff --git a/drivers/video/intelfb/intelfbhw.c b/drivers/video/intelfb/intelfbhw.c index 16c9c192b4be..426b7430b125 100644 --- a/drivers/video/intelfb/intelfbhw.c +++ b/drivers/video/intelfb/intelfbhw.c @@ -615,6 +615,33 @@ static int calc_vclock(int index, int m1, int m2, int n, int p1, int p2, int lvd return vco / p; } +static void +intelfbhw_get_p1p2(struct intelfb_info *dinfo, int dpll, int *o_p1, int *o_p2) +{ + int p1, p2; + + if (IS_I9XX(dinfo)) { + if (dpll & DPLL_P1_FORCE_DIV2) + p1 = 1; + else + p1 = (dpll >> DPLL_P1_SHIFT) & 0xff; + + p1 = ffs(p1); + + p2 = (dpll >> DPLL_I9XX_P2_SHIFT) & DPLL_P2_MASK; + } else { + if (dpll & DPLL_P1_FORCE_DIV2) + p1 = 0; + else + p1 = (dpll >> DPLL_P1_SHIFT) & DPLL_P1_MASK; + p2 = (dpll >> DPLL_P2_SHIFT) & DPLL_P2_MASK; + } + + *o_p1 = p1; + *o_p2 = p2; +} + + void intelfbhw_print_hw_state(struct intelfb_info *dinfo, struct intelfb_hwstate *hw) { @@ -633,12 +660,8 @@ intelfbhw_print_hw_state(struct intelfb_info *dinfo, struct intelfb_hwstate *hw) n = (hw->vga0_divisor >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK; m1 = (hw->vga0_divisor >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; m2 = (hw->vga0_divisor >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; - if (hw->vga_pd & VGAPD_0_P1_FORCE_DIV2) - p1 = 0; - else - p1 = (hw->vga_pd >> VGAPD_0_P1_SHIFT) & DPLL_P1_MASK; - p2 = (hw->vga_pd >> VGAPD_0_P2_SHIFT) & DPLL_P2_MASK; + intelfbhw_get_p1p2(dinfo, hw->vga_pd, &p1, &p2); printk(" VGA0: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", m1, m2, n, p1, p2); @@ -648,11 +671,8 @@ intelfbhw_print_hw_state(struct intelfb_info *dinfo, struct intelfb_hwstate *hw) n = (hw->vga1_divisor >> FP_N_DIVISOR_SHIFT) & FP_DIVISOR_MASK; m1 = (hw->vga1_divisor >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; m2 = (hw->vga1_divisor >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; - if (hw->vga_pd & VGAPD_1_P1_FORCE_DIV2) - p1 = 0; - else - p1 = (hw->vga_pd >> VGAPD_1_P1_SHIFT) & DPLL_P1_MASK; - p2 = (hw->vga_pd >> VGAPD_1_P2_SHIFT) & DPLL_P2_MASK; + + intelfbhw_get_p1p2(dinfo, hw->vga_pd, &p1, &p2); printk(" VGA1: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", m1, m2, n, p1, p2); printk(" VGA1: clock is %d\n", calc_vclock(index, m1, m2, n, p1, p2, 0)); @@ -668,38 +688,7 @@ intelfbhw_print_hw_state(struct intelfb_info *dinfo, struct intelfb_hwstate *hw) m1 = (hw->fpa0 >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; m2 = (hw->fpa0 >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; - if (IS_I9XX(dinfo)) { - int tmpp1; - - if (hw->dpll_a & DPLL_P1_FORCE_DIV2) - p1 = 0; - else - p1 = (hw->dpll_a >> DPLL_P1_SHIFT) & 0xff; - - tmpp1 = p1; - - switch (tmpp1) - { - case 0x1: p1 = 1; break; - case 0x2: p1 = 2; break; - case 0x4: p1 = 3; break; - case 0x8: p1 = 4; break; - case 0x10: p1 = 5; break; - case 0x20: p1 = 6; break; - case 0x40: p1 = 7; break; - case 0x80: p1 = 8; break; - default: break; - } - - p2 = (hw->dpll_a >> DPLL_I9XX_P2_SHIFT) & DPLL_P2_MASK; - - } else { - if (hw->dpll_a & DPLL_P1_FORCE_DIV2) - p1 = 0; - else - p1 = (hw->dpll_a >> DPLL_P1_SHIFT) & DPLL_P1_MASK; - p2 = (hw->dpll_a >> DPLL_P2_SHIFT) & DPLL_P2_MASK; - } + intelfbhw_get_p1p2(dinfo, hw->dpll_a, &p1, &p2); printk(" PLLA0: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", m1, m2, n, p1, p2); @@ -709,37 +698,8 @@ intelfbhw_print_hw_state(struct intelfb_info *dinfo, struct intelfb_hwstate *hw) m1 = (hw->fpa1 >> FP_M1_DIVISOR_SHIFT) & FP_DIVISOR_MASK; m2 = (hw->fpa1 >> FP_M2_DIVISOR_SHIFT) & FP_DIVISOR_MASK; - if (IS_I9XX(dinfo)) { - int tmpp1; - - if (hw->dpll_a & DPLL_P1_FORCE_DIV2) - p1 = 0; - else - p1 = (hw->dpll_a >> DPLL_P1_SHIFT) & 0xff; - - tmpp1 = p1; - - switch (tmpp1) { - case 0x1: p1 = 1; break; - case 0x2: p1 = 2; break; - case 0x4: p1 = 3; break; - case 0x8: p1 = 4; break; - case 0x10: p1 = 5; break; - case 0x20: p1 = 6; break; - case 0x40: p1 = 7; break; - case 0x80: p1 = 8; break; - default: break; - } - - p2 = (hw->dpll_a >> DPLL_I9XX_P2_SHIFT) & DPLL_P2_MASK; + intelfbhw_get_p1p2(dinfo, hw->dpll_a, &p1, &p2); - } else { - if (hw->dpll_a & DPLL_P1_FORCE_DIV2) - p1 = 0; - else - p1 = (hw->dpll_a >> DPLL_P1_SHIFT) & DPLL_P1_MASK; - p2 = (hw->dpll_a >> DPLL_P2_SHIFT) & DPLL_P2_MASK; - } printk(" PLLA1: (m1, m2, n, p1, p2) = (%d, %d, %d, %d, %d)\n", m1, m2, n, p1, p2); printk(" PLLA1: clock is %d\n", calc_vclock(index, m1, m2, n, p1, p2, 0)); |