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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 05:54:23 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 05:54:23 -0700
commit37be944a0270402f9cda291a930b0286f6dc92f5 (patch)
tree6a91a9eb86450f4a18a8871f04a1ef810e7b55d6 /drivers/gpu/drm/nouveau/nouveau_volt.c
parentca836a25435ef1b9914840ed0a310c9b6ac261d1 (diff)
parent1717c0e23f411147490c7a3312b894f0ea9a5fb1 (diff)
Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux
* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (290 commits) Revert "drm/ttm: add a way to bo_wait for either the last read or last write" Revert "drm/radeon/kms: add a new gem_wait ioctl with read/write flags" vmwgfx: Don't pass unused arguments to do_dirty functions vmwgfx: Emulate depth 32 framebuffers drm/radeon: Lower the severity of the radeon lockup messages. drm/i915/dp: Fix eDP on PCH DP on CPT/PPT drm/i915/dp: Introduce is_cpu_edp() drm/i915: use correct SPD type value drm/i915: fix ILK+ infoframe support drm/i915: add DP test request handling drm/i915: read full receiver capability field during DP hot plug drm/i915/dp: Remove eDP special cases from bandwidth checks drm/i915/dp: Fix the math in intel_dp_link_required drm/i915/panel: Always record the backlight level again (but cleverly) i915: Move i915_read/write out of line drm/i915: remove transcoder PLL mashing from mode_set per specs drm/i915: if transcoder disable fails, say which drm/i915: set watermarks for third pipe on IVB drm/i915: export a CPT mode set verification function drm/i915: fix transcoder PLL select masking ...
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_volt.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_volt.c46
1 files changed, 37 insertions, 9 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_volt.c b/drivers/gpu/drm/nouveau/nouveau_volt.c
index 75e872741d9..86d03e15735 100644
--- a/drivers/gpu/drm/nouveau/nouveau_volt.c
+++ b/drivers/gpu/drm/nouveau/nouveau_volt.c
@@ -27,7 +27,7 @@
#include "nouveau_drv.h"
#include "nouveau_pm.h"
-static const enum dcb_gpio_tag vidtag[] = { 0x04, 0x05, 0x06, 0x1a };
+static const enum dcb_gpio_tag vidtag[] = { 0x04, 0x05, 0x06, 0x1a, 0x73 };
static int nr_vidtag = sizeof(vidtag) / sizeof(vidtag[0]);
int
@@ -170,6 +170,13 @@ nouveau_volt_init(struct drm_device *dev)
*/
vidshift = 2;
break;
+ case 0x40:
+ headerlen = volt[1];
+ recordlen = volt[2];
+ entries = volt[3]; /* not a clue what the entries are for.. */
+ vidmask = volt[11]; /* guess.. */
+ vidshift = 0;
+ break;
default:
NV_WARN(dev, "voltage table 0x%02x unknown\n", volt[0]);
return;
@@ -197,16 +204,37 @@ nouveau_volt_init(struct drm_device *dev)
}
/* parse vbios entries into common format */
- voltage->level = kcalloc(entries, sizeof(*voltage->level), GFP_KERNEL);
- if (!voltage->level)
- return;
+ voltage->version = volt[0];
+ if (voltage->version < 0x40) {
+ voltage->nr_level = entries;
+ voltage->level =
+ kcalloc(entries, sizeof(*voltage->level), GFP_KERNEL);
+ if (!voltage->level)
+ return;
- entry = volt + headerlen;
- for (i = 0; i < entries; i++, entry += recordlen) {
- voltage->level[i].voltage = entry[0];
- voltage->level[i].vid = entry[1] >> vidshift;
+ entry = volt + headerlen;
+ for (i = 0; i < entries; i++, entry += recordlen) {
+ voltage->level[i].voltage = entry[0] * 10000;
+ voltage->level[i].vid = entry[1] >> vidshift;
+ }
+ } else {
+ u32 volt_uv = ROM32(volt[4]);
+ s16 step_uv = ROM16(volt[8]);
+ u8 vid;
+
+ voltage->nr_level = voltage->vid_mask + 1;
+ voltage->level = kcalloc(voltage->nr_level,
+ sizeof(*voltage->level), GFP_KERNEL);
+ if (!voltage->level)
+ return;
+
+ for (vid = 0; vid <= voltage->vid_mask; vid++) {
+ voltage->level[vid].voltage = volt_uv;
+ voltage->level[vid].vid = vid;
+ volt_uv += step_uv;
+ }
}
- voltage->nr_level = entries;
+
voltage->supported = true;
}