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drm/nouveau/pm: some fermi chipsets still use volt 0x30 

Fun, fun.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
hifive-unleashed-5.1
Ben Skeggs 2011-06-10 15:33:11 +10:00
parent da1dc4cfec
commit 03ce8d9e63
3 changed files with 7 additions and 5 deletions
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1
drivers/gpu/drm/nouveau/nouveau_drv.h
View File

@ -420,6 +420,7 @@ struct nouveau_pm_voltage_level {
struct nouveau_pm_voltage {
bool supported;
u8 version;
u8 vid_mask;
struct nouveau_pm_voltage_level *level;

8
drivers/gpu/drm/nouveau/nouveau_perf.c
View File

@ -146,16 +146,16 @@ nouveau_perf_voltage(struct drm_device *dev, struct bit_entry *P,
id = perflvl->volt_min;
perflvl->volt_min = 0;
/* pre-fermi vbios stores the voltage level directly in the
* perflvl entry as a multiple of 10mV
/* boards using voltage table version <0x40 store the voltage
* level directly in the perflvl entry as a multiple of 10mV
*/
if (dev_priv->card_type < NV_C0) {
if (dev_priv->engine.pm.voltage.version < 0x40) {
perflvl->volt_min = id * 10000;
perflvl->volt_max = perflvl->volt_min;
return;
}
/* from fermi onwards, the perflvl stores an index into yet another
/* on newer ones, the perflvl stores an index into yet another
* vbios table containing a min/max voltage value for the perflvl
*/
if (P->version != 2 || P->length < 34) {

3
drivers/gpu/drm/nouveau/nouveau_volt.c
View File

@ -204,7 +204,8 @@ nouveau_volt_init(struct drm_device *dev)
}
/* parse vbios entries into common format */
if (volt[0] < 0x40) {
voltage->version = volt[0];
if (voltage->version < 0x40) {
voltage->nr_level = entries;
voltage->level =
kcalloc(entries, sizeof(*voltage->level), GFP_KERNEL);