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path: root/drivers/gpu/drm/i915/intel_lvds.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
-rw-r--r--drivers/gpu/drm/i915/intel_lvds.c74
1 files changed, 59 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index f4b4aa242df1..14e516fdc2dd 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -56,7 +56,7 @@ static void intel_lvds_set_backlight(struct drm_device *dev, int level)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 blc_pwm_ctl, reg;
- if (IS_IRONLAKE(dev))
+ if (HAS_PCH_SPLIT(dev))
reg = BLC_PWM_CPU_CTL;
else
reg = BLC_PWM_CTL;
@@ -74,7 +74,7 @@ static u32 intel_lvds_get_max_backlight(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
- if (IS_IRONLAKE(dev))
+ if (HAS_PCH_SPLIT(dev))
reg = BLC_PWM_PCH_CTL2;
else
reg = BLC_PWM_CTL;
@@ -89,17 +89,22 @@ static u32 intel_lvds_get_max_backlight(struct drm_device *dev)
static void intel_lvds_set_power(struct drm_device *dev, bool on)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- u32 pp_status, ctl_reg, status_reg;
+ u32 pp_status, ctl_reg, status_reg, lvds_reg;
- if (IS_IRONLAKE(dev)) {
+ if (HAS_PCH_SPLIT(dev)) {
ctl_reg = PCH_PP_CONTROL;
status_reg = PCH_PP_STATUS;
+ lvds_reg = PCH_LVDS;
} else {
ctl_reg = PP_CONTROL;
status_reg = PP_STATUS;
+ lvds_reg = LVDS;
}
if (on) {
+ I915_WRITE(lvds_reg, I915_READ(lvds_reg) | LVDS_PORT_EN);
+ POSTING_READ(lvds_reg);
+
I915_WRITE(ctl_reg, I915_READ(ctl_reg) |
POWER_TARGET_ON);
do {
@@ -115,6 +120,9 @@ static void intel_lvds_set_power(struct drm_device *dev, bool on)
do {
pp_status = I915_READ(status_reg);
} while (pp_status & PP_ON);
+
+ I915_WRITE(lvds_reg, I915_READ(lvds_reg) & ~LVDS_PORT_EN);
+ POSTING_READ(lvds_reg);
}
}
@@ -137,7 +145,7 @@ static void intel_lvds_save(struct drm_connector *connector)
u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg;
u32 pwm_ctl_reg;
- if (IS_IRONLAKE(dev)) {
+ if (HAS_PCH_SPLIT(dev)) {
pp_on_reg = PCH_PP_ON_DELAYS;
pp_off_reg = PCH_PP_OFF_DELAYS;
pp_ctl_reg = PCH_PP_CONTROL;
@@ -174,7 +182,7 @@ static void intel_lvds_restore(struct drm_connector *connector)
u32 pp_on_reg, pp_off_reg, pp_ctl_reg, pp_div_reg;
u32 pwm_ctl_reg;
- if (IS_IRONLAKE(dev)) {
+ if (HAS_PCH_SPLIT(dev)) {
pp_on_reg = PCH_PP_ON_DELAYS;
pp_off_reg = PCH_PP_OFF_DELAYS;
pp_ctl_reg = PCH_PP_CONTROL;
@@ -297,7 +305,7 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
}
/* full screen scale for now */
- if (IS_IRONLAKE(dev))
+ if (HAS_PCH_SPLIT(dev))
goto out;
/* 965+ wants fuzzy fitting */
@@ -327,7 +335,7 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
* to register description and PRM.
* Change the value here to see the borders for debugging
*/
- if (!IS_IRONLAKE(dev)) {
+ if (!HAS_PCH_SPLIT(dev)) {
I915_WRITE(BCLRPAT_A, 0);
I915_WRITE(BCLRPAT_B, 0);
}
@@ -548,7 +556,7 @@ static void intel_lvds_prepare(struct drm_encoder *encoder)
struct drm_i915_private *dev_priv = dev->dev_private;
u32 reg;
- if (IS_IRONLAKE(dev))
+ if (HAS_PCH_SPLIT(dev))
reg = BLC_PWM_CPU_CTL;
else
reg = BLC_PWM_CTL;
@@ -587,7 +595,7 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
* settings.
*/
- if (IS_IRONLAKE(dev))
+ if (HAS_PCH_SPLIT(dev))
return;
/*
@@ -602,6 +610,20 @@ static void intel_lvds_mode_set(struct drm_encoder *encoder,
/* Some lid devices report incorrect lid status, assume they're connected */
static const struct dmi_system_id bad_lid_status[] = {
{
+ .ident = "Compaq nx9020",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_BOARD_NAME, "3084"),
+ },
+ },
+ {
+ .ident = "Samsung SX20S",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Samsung Electronics"),
+ DMI_MATCH(DMI_BOARD_NAME, "SX20S"),
+ },
+ },
+ {
.ident = "Aspire One",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
@@ -609,12 +631,26 @@ static const struct dmi_system_id bad_lid_status[] = {
},
},
{
+ .ident = "Aspire 1810T",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 1810T"),
+ },
+ },
+ {
.ident = "PC-81005",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "MALATA"),
DMI_MATCH(DMI_PRODUCT_NAME, "PC-81005"),
},
},
+ {
+ .ident = "Clevo M5x0N",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
+ DMI_MATCH(DMI_BOARD_NAME, "M5x0N"),
+ },
+ },
{ }
};
@@ -627,9 +663,16 @@ static const struct dmi_system_id bad_lid_status[] = {
*/
static enum drm_connector_status intel_lvds_detect(struct drm_connector *connector)
{
+ struct drm_device *dev = connector->dev;
enum drm_connector_status status = connector_status_connected;
- if (!acpi_lid_open() && !dmi_check_system(bad_lid_status))
+ /* ACPI lid methods were generally unreliable in this generation, so
+ * don't even bother.
+ */
+ if (IS_GEN2(dev))
+ return connector_status_connected;
+
+ if (!dmi_check_system(bad_lid_status) && !acpi_lid_open())
status = connector_status_disconnected;
return status;
@@ -912,7 +955,8 @@ static void intel_find_lvds_downclock(struct drm_device *dev,
}
}
mutex_unlock(&dev->mode_config.mutex);
- if (temp_downclock < panel_fixed_mode->clock) {
+ if (temp_downclock < panel_fixed_mode->clock &&
+ i915_lvds_downclock) {
/* We found the downclock for LVDS. */
dev_priv->lvds_downclock_avail = 1;
dev_priv->lvds_downclock = temp_downclock;
@@ -991,7 +1035,7 @@ void intel_lvds_init(struct drm_device *dev)
return;
}
- if (IS_IRONLAKE(dev)) {
+ if (HAS_PCH_SPLIT(dev)) {
if ((I915_READ(PCH_LVDS) & LVDS_DETECTED) == 0)
return;
if (dev_priv->edp_support) {
@@ -1094,7 +1138,7 @@ void intel_lvds_init(struct drm_device *dev)
*/
/* Ironlake: FIXME if still fail, not try pipe mode now */
- if (IS_IRONLAKE(dev))
+ if (HAS_PCH_SPLIT(dev))
goto failed;
lvds = I915_READ(LVDS);
@@ -1115,7 +1159,7 @@ void intel_lvds_init(struct drm_device *dev)
goto failed;
out:
- if (IS_IRONLAKE(dev)) {
+ if (HAS_PCH_SPLIT(dev)) {
u32 pwm;
/* make sure PWM is enabled */
pwm = I915_READ(BLC_PWM_CPU_CTL2);
generated by cgit v1.2.3 (git 2.39.0) at 2024-10-31 10:24:12 +0300