[PATCH 2/4] radeonfb: add new module parameter to force PLL calculation
STALE6963d
From: <hidden>
Date: 2007-09-04 10:57:57
Also in:
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Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
On my Acer Aspire 5100 (with 0x5975) I need to force PLL caclulation. Most probably the BIOS dividers are incorrect/insufficient. Without pll calculation console goes blank. Signed-off-by: Andreas Herrmann <redacted> --- drivers/video/aty/radeon_base.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-)
diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index 90a3957..f672c0c 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c@@ -268,6 +268,7 @@ static int mirror = 0; static int panel_yres = 0; static int force_dfp = 0; static int force_measure_pll = 0; +static int force_pll_calc = 0; #ifdef CONFIG_MTRR static int nomtrr = 0; #endif
@@ -1590,7 +1591,7 @@ static int radeonfb_set_par(struct fb_info *info) pixClock = 100000000 / rinfo->panel_info.clock; - if (rinfo->panel_info.use_bios_dividers) { + if (rinfo->panel_info.use_bios_dividers && !force_pll_calc) { nopllcalc = 1; newmode->ppll_div_3 = rinfo->panel_info.fbk_divider | (rinfo->panel_info.post_divider << 16);
@@ -2495,6 +2496,8 @@ static int __init radeonfb_setup (char *options) nomodeset = 1; } else if (!strncmp(this_opt, "force_measure_pll", 17)) { force_measure_pll = 1; + } else if (!strncmp(this_opt, "force_pll_calc", 17)) { + force_pll_calc = 1; } else if (!strncmp(this_opt, "ignore_edid", 11)) { ignore_edid = 1; #if defined(CONFIG_PM) && defined(CONFIG_X86)
@@ -2550,6 +2553,8 @@ module_param(monitor_layout, charp, 0); MODULE_PARM_DESC(monitor_layout, "Specify monitor mapping (like XFree86)"); module_param(force_measure_pll, bool, 0); MODULE_PARM_DESC(force_measure_pll, "Force measurement of PLL (debug)"); +module_param(force_pll_calc, bool, 0400); +MODULE_PARM_DESC(force_pll_calc, "Force calculation of PLL"); #ifdef CONFIG_MTRR module_param(nomtrr, bool, 0); MODULE_PARM_DESC(nomtrr, "bool: disable use of MTRR registers");
--
1.5.3
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