[ltp] [ACPI] Thinkpad radeon_pm.c patches (T40 2373-8CG with
this setup is not affected by the power drain)
Pete Toscano
linux-thinkpad@linux-thinkpad.org
Fri, 11 Feb 2005 18:39:27 -0500
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Here's the latest radeonfb-thinkpad-pm.patch I have (from Volker's
kernel-T4x-2.6.11-12 SRPM) with the exta stanzas added in.
I just compiled it up and it works on my Thinkpad (T40 2373-94U). I
can't vouch for the others.
I'll contact Volker directly to see if he wants to incorporate this file
along with some other minor tweaks I made (ipw2100 AND ipw2200, ibm-acpi
0.10.0, removed APIC for UP systems) into his next (S)RPMS.
pete
Peter Frühberger wrote:
> Jerome Poggi wrote:
>
>>>On Sat, 05 Feb 2005, obi wrote:
>>>
>>>
>>>>Good idea: here is mine
>>>>
>>>> .ident = "IBM ThinkPad T41 (2378-DEU)",
>>>> .matches = {
>>>> DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
>>>> DMI_MATCH(DMI_PRODUCT_NAME, "2378DEU"),
>>>> },
>>>
>>>
>>>see mine :
>>>
>>> .ident = "IBM ThinkPad T42 (2373-FWG)",
>>> .matches = {
>>> DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
>>> DMI_MATCH(DMI_PRODUCT_NAME, "2373FWG"),
>>> },
>>>
>>>Jerome.
>
>
> and my R40, as written on the bugpage:
>
> .ident = "IBM ThinkPad R40 (2722-B3G)",
> .matches = {
> DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
> DMI_MATCH(DMI_PRODUCT_NAME, "2722B3G"),
> },
> Peter
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Content-Type: text/plain; name="radeonfb-thinkpad-pm-4pt2.patch"; charset=iso-8859-1
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filename="radeonfb-thinkpad-pm-4pt2.patch"
Only in linux-2.6.10/drivers/video/aty: built-in.o
Only in linux-2.6.10/drivers/video/aty: .built-in.o.cmd
Only in linux-2.6.10/drivers/video/aty: radeon_accel.o
Only in linux-2.6.10/drivers/video/aty: .radeon_accel.o.cmd
diff -u linux-2.6.10-med/drivers/video/aty/radeon_base.c linux-2.6.10/drivers/video/aty/radeon_base.c
--- linux-2.6.10-med/drivers/video/aty/radeon_base.c 2005-02-03 11:52:02.000000000 -0500
+++ linux-2.6.10/drivers/video/aty/radeon_base.c 2005-02-03 13:13:42.256437916 -0500
@@ -273,6 +273,9 @@
#ifdef CONFIG_MTRR
static int nomtrr = 0;
#endif
+#if defined(CONFIG_PM) && defined(CONFIG_X86)
+int radeon_force_sleep = 0;
+#endif
/*
* prototypes
@@ -2531,6 +2534,10 @@
force_measure_pll = 1;
} else if (!strncmp(this_opt, "ignore_edid", 11)) {
ignore_edid = 1;
+#if defined(CONFIG_PM) && defined(CONFIG_X86)
+ } else if (!strncmp(this_opt, "force_sleep", 11)) {
+ radeon_force_sleep = 1;
+#endif
} else
mode_option = this_opt;
}
@@ -2570,3 +2577,5 @@
MODULE_PARM_DESC(panel_yres, "int: set panel yres");
module_param(mode_option, charp, 0);
MODULE_PARM_DESC(mode_option, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
+module_param(radeon_force_sleep, int, 0);
+MODULE_PARM_DESC(radeon_force_sleep, "bool: force ACPI sleep mode on untested machines");
Only in linux-2.6.10/drivers/video/aty: radeon_base.o
Only in linux-2.6.10/drivers/video/aty: .radeon_base.o.cmd
Only in linux-2.6.10/drivers/video/aty: radeonfb.o
Only in linux-2.6.10/drivers/video/aty: .radeonfb.o.cmd
Only in linux-2.6.10/drivers/video/aty: radeon_i2c.o
Only in linux-2.6.10/drivers/video/aty: .radeon_i2c.o.cmd
Only in linux-2.6.10/drivers/video/aty: radeon_monitor.o
Only in linux-2.6.10/drivers/video/aty: .radeon_monitor.o.cmd
diff -u linux-2.6.10-med/drivers/video/aty/radeon_pm.c linux-2.6.10/drivers/video/aty/radeon_pm.c
--- linux-2.6.10-med/drivers/video/aty/radeon_pm.c 2005-02-03 11:52:02.000000000 -0500
+++ linux-2.6.10/drivers/video/aty/radeon_pm.c 2005-02-03 13:05:40.000000000 -0500
@@ -25,8 +25,83 @@
#include <asm/pmac_feature.h>
#endif
+/* For detecting supported PC laptops */
+#ifdef CONFIG_X86
+#include <linux/dmi.h>
+#endif
+
#include "ati_ids.h"
+#ifdef CONFIG_X86
+/* This array holds a list of supported PC laptops.
+ * Currently only few IBM models are tested.
+ * If you want to experiment, use dmidecode to find out
+ * vendor and product codes for Your laptop.
+ */
+static struct dmi_system_id __devinitdata radeonfb_dmi_table[] = {
+ {
+ .ident = "IBM ThinkPad R40 (2722-B3G)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "2722B3G"),
+ },
+ },
+ {
+ .ident = "IBM ThinkPad T40 (2373-92G)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "237392G"),
+ },
+ },
+ {
+ .ident = "IBM ThinkPad T40 (2373-8CG)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "23738CG"),
+ },
+ },
+ {
+ .ident = "IBM ThinkPad T40 (2373-94U)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "237394U"),
+ },
+ },
+ {
+ .ident = "IBM ThinkPad T41 (2373-2FG)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "23732FG"),
+ },
+ },
+ {
+ .ident = "IBM ThinkPad T41 (2378-DEU)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "2378DEU"),
+ },
+ },
+ {
+ /* Reported by Volker Braun <vbraun@physics.upenn.edu> */
+ .ident = "IBM ThinkPad T41 (2379-DJU)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "2379DJU"),
+ },
+ },
+ {
+ .ident = "IBM ThinkPad T42 (2373-FWG)",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "IBM"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "2373FWG"),
+ },
+ },
+ { },
+};
+
+extern int radeon_force_sleep;
+#endif
+
void radeon_pm_disable_dynamic_mode(struct radeonfb_info *rinfo)
{
u32 tmp;
@@ -853,6 +928,13 @@
tmp = INPLL( pllMCLK_MISC) | MCLK_MISC__EN_MCLK_TRISTATE_IN_SUSPEND;
OUTPLL( pllMCLK_MISC, tmp);
+ /* BUS_CNTL1__MOBILE_PLATORM_SEL setting is northbridge chipset
+ * and radeon chip dependent. Thus we only enable it on Mac for
+ * now (until we get more info on how to compute the correct
+ * value for various X86 bridges).
+ */
+
+#ifdef CONFIG_PPC_PMAC
/* AGP PLL control */
if (rinfo->family <= CHIP_FAMILY_RV280) {
OUTREG(BUS_CNTL1, INREG(BUS_CNTL1) | BUS_CNTL1__AGPCLK_VALID);
@@ -864,6 +946,7 @@
OUTREG(BUS_CNTL1, INREG(BUS_CNTL1));
OUTREG(BUS_CNTL1, (INREG(BUS_CNTL1) & ~0x4000) | 0x8000);
}
+#endif
OUTREG(CRTC_OFFSET_CNTL, (INREG(CRTC_OFFSET_CNTL)
& ~CRTC_OFFSET_CNTL__CRTC_STEREO_SYNC_OUT_EN));
@@ -2748,6 +2831,29 @@
OUTREG(TV_DAC_CNTL, INREG(TV_DAC_CNTL) | 0x07000000);
}
#endif /* defined(CONFIG_PM) && defined(CONFIG_PPC_OF) */
+
+/* The PM code also works on some PC laptops.
+ * Only a few models are actually tested so Your mileage may vary.
+ * We can do D2 on at least M7 and M9 on some IBM ThinkPad T41 models.
+ */
+#if defined(CONFIG_PM) && defined(CONFIG_X86)
+ if (radeon_force_sleep || dmi_check_system(radeonfb_dmi_table)) {
+ if (radeon_force_sleep)
+ printk("radeonfb: forcefully enabling sleep mode\n");
+ else
+ printk("radeonfb: enabling sleep mode\n");
+
+ if (rinfo->is_mobility && rinfo->pm_reg &&
+ rinfo->family <= CHIP_FAMILY_RV250)
+ rinfo->pm_mode |= radeon_pm_d2;
+
+ /* Power down TV DAC, that saves a significant amount of power,
+ * we'll have something better once we actually have some TVOut
+ * support
+ */
+ OUTREG(TV_DAC_CNTL, INREG(TV_DAC_CNTL) | 0x07000000);
+ }
+#endif /* defined(CONFIG_PM) && defined(CONFIG_X86) */
}
void radeonfb_pm_exit(struct radeonfb_info *rinfo)
Only in linux-2.6.10/drivers/video/aty: radeon_pm.c.rej
Only in linux-2.6.10/drivers/video/aty: radeon_pm.o
Only in linux-2.6.10/drivers/video/aty: .radeon_pm.o.cmd
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