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path: root/drivers/gpu/drm/i915/intel_opregion.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_opregion.c')
-rw-r--r--drivers/gpu/drm/i915/intel_opregion.c110
1 files changed, 30 insertions, 80 deletions
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index a8117e614009..cfb8fb68f09c 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -110,6 +110,10 @@ struct opregion_asle {
u8 rsvd[102];
} __attribute__((packed));
+/* Driver readiness indicator */
+#define ASLE_ARDY_READY (1 << 0)
+#define ASLE_ARDY_NOT_READY (0 << 0)
+
/* ASLE irq request bits */
#define ASLE_SET_ALS_ILLUM (1 << 0)
#define ASLE_SET_BACKLIGHT (1 << 1)
@@ -123,6 +127,12 @@ struct opregion_asle {
#define ASLE_PFIT_FAILED (1<<14)
#define ASLE_PWM_FREQ_FAILED (1<<16)
+/* Technology enabled indicator */
+#define ASLE_TCHE_ALS_EN (1 << 0)
+#define ASLE_TCHE_BLC_EN (1 << 1)
+#define ASLE_TCHE_PFIT_EN (1 << 2)
+#define ASLE_TCHE_PFMB_EN (1 << 3)
+
/* ASLE backlight brightness to set */
#define ASLE_BCLP_VALID (1<<31)
#define ASLE_BCLP_MSK (~(1<<31))
@@ -152,7 +162,6 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct opregion_asle __iomem *asle = dev_priv->opregion.asle;
- u32 max;
DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp);
@@ -163,8 +172,7 @@ static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
if (bclp > 255)
return ASLE_BACKLIGHT_FAILED;
- max = intel_panel_get_max_backlight(dev);
- intel_panel_set_backlight(dev, bclp * max / 255);
+ intel_panel_set_backlight(dev, bclp, 255);
iowrite32((bclp*0x64)/0xff | ASLE_CBLV_VALID, &asle->cblv);
return 0;
@@ -174,29 +182,22 @@ static u32 asle_set_als_illum(struct drm_device *dev, u32 alsi)
{
/* alsi is the current ALS reading in lux. 0 indicates below sensor
range, 0xffff indicates above sensor range. 1-0xfffe are valid */
- return 0;
+ DRM_DEBUG_DRIVER("Illum is not supported\n");
+ return ASLE_ALS_ILLUM_FAILED;
}
static u32 asle_set_pwm_freq(struct drm_device *dev, u32 pfmb)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
- if (pfmb & ASLE_PFMB_PWM_VALID) {
- u32 blc_pwm_ctl = I915_READ(BLC_PWM_CTL);
- u32 pwm = pfmb & ASLE_PFMB_PWM_MASK;
- blc_pwm_ctl &= BACKLIGHT_DUTY_CYCLE_MASK;
- pwm = pwm >> 9;
- /* FIXME - what do we do with the PWM? */
- }
- return 0;
+ DRM_DEBUG_DRIVER("PWM freq is not supported\n");
+ return ASLE_PWM_FREQ_FAILED;
}
static u32 asle_set_pfit(struct drm_device *dev, u32 pfit)
{
/* Panel fitting is currently controlled by the X code, so this is a
noop until modesetting support works fully */
- if (!(pfit & ASLE_PFIT_VALID))
- return ASLE_PFIT_FAILED;
- return 0;
+ DRM_DEBUG_DRIVER("Pfit is not supported\n");
+ return ASLE_PFIT_FAILED;
}
void intel_opregion_asle_intr(struct drm_device *dev)
@@ -231,64 +232,6 @@ void intel_opregion_asle_intr(struct drm_device *dev)
iowrite32(asle_stat, &asle->aslc);
}
-void intel_opregion_gse_intr(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct opregion_asle __iomem *asle = dev_priv->opregion.asle;
- u32 asle_stat = 0;
- u32 asle_req;
-
- if (!asle)
- return;
-
- asle_req = ioread32(&asle->aslc) & ASLE_REQ_MSK;
-
- if (!asle_req) {
- DRM_DEBUG_DRIVER("non asle set request??\n");
- return;
- }
-
- if (asle_req & ASLE_SET_ALS_ILLUM) {
- DRM_DEBUG_DRIVER("Illum is not supported\n");
- asle_stat |= ASLE_ALS_ILLUM_FAILED;
- }
-
- if (asle_req & ASLE_SET_BACKLIGHT)
- asle_stat |= asle_set_backlight(dev, ioread32(&asle->bclp));
-
- if (asle_req & ASLE_SET_PFIT) {
- DRM_DEBUG_DRIVER("Pfit is not supported\n");
- asle_stat |= ASLE_PFIT_FAILED;
- }
-
- if (asle_req & ASLE_SET_PWM_FREQ) {
- DRM_DEBUG_DRIVER("PWM freq is not supported\n");
- asle_stat |= ASLE_PWM_FREQ_FAILED;
- }
-
- iowrite32(asle_stat, &asle->aslc);
-}
-#define ASLE_ALS_EN (1<<0)
-#define ASLE_BLC_EN (1<<1)
-#define ASLE_PFIT_EN (1<<2)
-#define ASLE_PFMB_EN (1<<3)
-
-void intel_opregion_enable_asle(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- struct opregion_asle __iomem *asle = dev_priv->opregion.asle;
-
- if (asle) {
- if (IS_MOBILE(dev))
- intel_enable_asle(dev);
-
- iowrite32(ASLE_ALS_EN | ASLE_BLC_EN | ASLE_PFIT_EN |
- ASLE_PFMB_EN,
- &asle->tche);
- iowrite32(1, &asle->ardy);
- }
-}
-
#define ACPI_EV_DISPLAY_SWITCH (1<<0)
#define ACPI_EV_LID (1<<1)
#define ACPI_EV_DOCK (1<<2)
@@ -368,8 +311,8 @@ static void intel_didl_outputs(struct drm_device *dev)
list_for_each_entry(acpi_cdev, &acpi_video_bus->children, node) {
if (i >= 8) {
- dev_printk(KERN_ERR, &dev->pdev->dev,
- "More than 8 outputs detected\n");
+ dev_dbg(&dev->pdev->dev,
+ "More than 8 outputs detected via ACPI\n");
return;
}
status =
@@ -395,8 +338,8 @@ blind_set:
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
int output_type = ACPI_OTHER_OUTPUT;
if (i >= 8) {
- dev_printk(KERN_ERR, &dev->pdev->dev,
- "More than 8 outputs detected\n");
+ dev_dbg(&dev->pdev->dev,
+ "More than 8 outputs in connector list\n");
return;
}
switch (connector->connector_type) {
@@ -472,8 +415,10 @@ void intel_opregion_init(struct drm_device *dev)
register_acpi_notifier(&intel_opregion_notifier);
}
- if (opregion->asle)
- intel_opregion_enable_asle(dev);
+ if (opregion->asle) {
+ iowrite32(ASLE_TCHE_BLC_EN, &opregion->asle->tche);
+ iowrite32(ASLE_ARDY_READY, &opregion->asle->ardy);
+ }
}
void intel_opregion_fini(struct drm_device *dev)
@@ -484,6 +429,9 @@ void intel_opregion_fini(struct drm_device *dev)
if (!opregion->header)
return;
+ if (opregion->asle)
+ iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy);
+
if (opregion->acpi) {
iowrite32(0, &opregion->acpi->drdy);
@@ -546,6 +494,8 @@ int intel_opregion_setup(struct drm_device *dev)
if (mboxes & MBOX_ASLE) {
DRM_DEBUG_DRIVER("ASLE supported\n");
opregion->asle = base + OPREGION_ASLE_OFFSET;
+
+ iowrite32(ASLE_ARDY_NOT_READY, &opregion->asle->ardy);
}
return 0;