diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 69 |
1 files changed, 68 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index dbd9f09465f..5e21b311982 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2270,6 +2270,11 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) intel_wait_for_vblank(dev); } + /* Don't disable pipe A or pipe A PLLs if needed */ + if (pipeconf_reg == PIPEACONF && + (dev_priv->quirks & QUIRK_PIPEA_FORCE)) + goto skip_pipe_off; + /* Next, disable display pipes */ temp = I915_READ(pipeconf_reg); if ((temp & PIPEACONF_ENABLE) != 0) { @@ -2285,7 +2290,7 @@ static void i9xx_crtc_dpms(struct drm_crtc *crtc, int mode) I915_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE); I915_READ(dpll_reg); } - + skip_pipe_off: /* Wait for the clocks to turn off. */ udelay(150); break; @@ -5526,6 +5531,66 @@ static void intel_init_display(struct drm_device *dev) } } +/* + * Some BIOSes insist on assuming the GPU's pipe A is enabled at suspend, + * resume, or other times. This quirk makes sure that's the case for + * affected systems. + */ +static void quirk_pipea_force (struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + dev_priv->quirks |= QUIRK_PIPEA_FORCE; + DRM_DEBUG_DRIVER("applying pipe a force quirk\n"); +} + +struct intel_quirk { + int device; + int subsystem_vendor; + int subsystem_device; + void (*hook)(struct drm_device *dev); +}; + +struct intel_quirk intel_quirks[] = { + /* HP Compaq 2730p needs pipe A force quirk (LP: #291555) */ + { 0x2a42, 0x103c, 0x30eb, quirk_pipea_force }, + /* HP Mini needs pipe A force quirk (LP: #322104) */ + { 0x27ae,0x103c, 0x361a, quirk_pipea_force }, + + /* Thinkpad R31 needs pipe A force quirk */ + { 0x3577, 0x1014, 0x0505, quirk_pipea_force }, + /* Toshiba Protege R-205, S-209 needs pipe A force quirk */ + { 0x2592, 0x1179, 0x0001, quirk_pipea_force }, + + /* ThinkPad X30 needs pipe A force quirk (LP: #304614) */ + { 0x3577, 0x1014, 0x0513, quirk_pipea_force }, + /* ThinkPad X40 needs pipe A force quirk */ + + /* ThinkPad T60 needs pipe A force quirk (bug #16494) */ + { 0x2782, 0x17aa, 0x201a, quirk_pipea_force }, + + /* 855 & before need to leave pipe A & dpll A up */ + { 0x3582, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, + { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force }, +}; + +static void intel_init_quirks(struct drm_device *dev) +{ + struct pci_dev *d = dev->pdev; + int i; + + for (i = 0; i < ARRAY_SIZE(intel_quirks); i++) { + struct intel_quirk *q = &intel_quirks[i]; + + if (d->device == q->device && + (d->subsystem_vendor == q->subsystem_vendor || + q->subsystem_vendor == PCI_ANY_ID) && + (d->subsystem_device == q->subsystem_device || + q->subsystem_device == PCI_ANY_ID)) + q->hook(dev); + } +} + void intel_modeset_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -5538,6 +5603,8 @@ void intel_modeset_init(struct drm_device *dev) dev->mode_config.funcs = (void *)&intel_mode_funcs; + intel_init_quirks(dev); + intel_init_display(dev); if (IS_I965G(dev)) { |