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path: root/drivers/gpu/drm/i915/intel_display.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c73
1 files changed, 46 insertions, 27 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0bb3d6d596d9..72a83fabb105 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -90,8 +90,8 @@ intel_fdi_link_freq(struct drm_device *dev)
static const intel_limit_t intel_limits_i8xx_dac = {
.dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 930000, .max = 1400000 },
- .n = { .min = 3, .max = 16 },
+ .vco = { .min = 908000, .max = 1512000 },
+ .n = { .min = 2, .max = 16 },
.m = { .min = 96, .max = 140 },
.m1 = { .min = 18, .max = 26 },
.m2 = { .min = 6, .max = 16 },
@@ -103,8 +103,8 @@ static const intel_limit_t intel_limits_i8xx_dac = {
static const intel_limit_t intel_limits_i8xx_dvo = {
.dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 930000, .max = 1400000 },
- .n = { .min = 3, .max = 16 },
+ .vco = { .min = 908000, .max = 1512000 },
+ .n = { .min = 2, .max = 16 },
.m = { .min = 96, .max = 140 },
.m1 = { .min = 18, .max = 26 },
.m2 = { .min = 6, .max = 16 },
@@ -116,8 +116,8 @@ static const intel_limit_t intel_limits_i8xx_dvo = {
static const intel_limit_t intel_limits_i8xx_lvds = {
.dot = { .min = 25000, .max = 350000 },
- .vco = { .min = 930000, .max = 1400000 },
- .n = { .min = 3, .max = 16 },
+ .vco = { .min = 908000, .max = 1512000 },
+ .n = { .min = 2, .max = 16 },
.m = { .min = 96, .max = 140 },
.m1 = { .min = 18, .max = 26 },
.m2 = { .min = 6, .max = 16 },
@@ -329,6 +329,8 @@ static void vlv_clock(int refclk, intel_clock_t *clock)
{
clock->m = clock->m1 * clock->m2;
clock->p = clock->p1 * clock->p2;
+ if (WARN_ON(clock->n == 0 || clock->p == 0))
+ return;
clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
}
@@ -430,6 +432,8 @@ static void pineview_clock(int refclk, intel_clock_t *clock)
{
clock->m = clock->m2 + 2;
clock->p = clock->p1 * clock->p2;
+ if (WARN_ON(clock->n == 0 || clock->p == 0))
+ return;
clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
}
@@ -443,6 +447,8 @@ static void i9xx_clock(int refclk, intel_clock_t *clock)
{
clock->m = i9xx_dpll_compute_m(clock);
clock->p = clock->p1 * clock->p2;
+ if (WARN_ON(clock->n + 2 == 0 || clock->p == 0))
+ return;
clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
}
@@ -1361,6 +1367,10 @@ static void intel_init_dpio(struct drm_device *dev)
if (!IS_VALLEYVIEW(dev))
return;
+ /* Enable the CRI clock source so we can get at the display */
+ I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) |
+ DPLL_INTEGRATED_CRI_CLK_VLV);
+
DPIO_PHY_IOSF_PORT(DPIO_PHY0) = IOSF_PORT_DPIO;
/*
* From VLV2A0_DP_eDP_DPIO_driver_vbios_notes_10.docx -
@@ -4751,9 +4761,8 @@ static int i9xx_get_refclk(struct drm_crtc *crtc, int num_connectors)
refclk = 100000;
} else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
- refclk = dev_priv->vbt.lvds_ssc_freq * 1000;
- DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
- refclk / 1000);
+ refclk = dev_priv->vbt.lvds_ssc_freq;
+ DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n", refclk);
} else if (!IS_GEN2(dev)) {
refclk = 96000;
} else {
@@ -5899,9 +5908,9 @@ static int ironlake_get_refclk(struct drm_crtc *crtc)
}
if (is_lvds && intel_panel_use_ssc(dev_priv) && num_connectors < 2) {
- DRM_DEBUG_KMS("using SSC reference clock of %d MHz\n",
+ DRM_DEBUG_KMS("using SSC reference clock of %d kHz\n",
dev_priv->vbt.lvds_ssc_freq);
- return dev_priv->vbt.lvds_ssc_freq * 1000;
+ return dev_priv->vbt.lvds_ssc_freq;
}
return 120000;
@@ -6163,7 +6172,7 @@ static uint32_t ironlake_compute_dpll(struct intel_crtc *intel_crtc,
factor = 21;
if (is_lvds) {
if ((intel_panel_use_ssc(dev_priv) &&
- dev_priv->vbt.lvds_ssc_freq == 100) ||
+ dev_priv->vbt.lvds_ssc_freq == 100000) ||
(HAS_PCH_IBX(dev) && intel_is_dual_link_lvds(dev)))
factor = 25;
} else if (intel_crtc->config.sdvo_tv_clock)
@@ -6484,7 +6493,7 @@ static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
uint32_t val;
list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head)
- WARN(crtc->base.enabled, "CRTC for pipe %c enabled\n",
+ WARN(crtc->active, "CRTC for pipe %c enabled\n",
pipe_name(crtc->pipe));
WARN(I915_READ(HSW_PWR_WELL_DRIVER), "Power well on\n");
@@ -6504,7 +6513,7 @@ static void assert_can_disable_lcpll(struct drm_i915_private *dev_priv)
spin_lock_irqsave(&dev_priv->irq_lock, irqflags);
val = I915_READ(DEIMR);
- WARN((val & ~DE_PCH_EVENT_IVB) != val,
+ WARN((val | DE_PCH_EVENT_IVB) != 0xffffffff,
"Unexpected DEIMR bits enabled: 0x%x\n", val);
val = I915_READ(SDEIMR);
WARN((val | SDE_HOTPLUG_MASK_CPT) != 0xffffffff,
@@ -6628,6 +6637,8 @@ void hsw_enable_pc8_work(struct work_struct *__work)
struct drm_device *dev = dev_priv->dev;
uint32_t val;
+ WARN_ON(!HAS_PC8(dev));
+
if (dev_priv->pc8.enabled)
return;
@@ -6644,6 +6655,8 @@ void hsw_enable_pc8_work(struct work_struct *__work)
lpt_disable_clkout_dp(dev);
hsw_pc8_disable_interrupts(dev);
hsw_disable_lcpll(dev_priv, true, true);
+
+ intel_runtime_pm_put(dev_priv);
}
static void __hsw_enable_package_c8(struct drm_i915_private *dev_priv)
@@ -6673,12 +6686,16 @@ static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
if (dev_priv->pc8.disable_count != 1)
return;
+ WARN_ON(!HAS_PC8(dev));
+
cancel_delayed_work_sync(&dev_priv->pc8.enable_work);
if (!dev_priv->pc8.enabled)
return;
DRM_DEBUG_KMS("Disabling package C8+\n");
+ intel_runtime_pm_get(dev_priv);
+
hsw_restore_lcpll(dev_priv);
hsw_pc8_restore_interrupts(dev);
lpt_init_pch_refclk(dev);
@@ -6885,8 +6902,9 @@ static int haswell_crtc_mode_set(struct drm_crtc *crtc,
int plane = intel_crtc->plane;
int ret;
- if (!intel_ddi_pll_mode_set(crtc))
+ if (!intel_ddi_pll_select(intel_crtc))
return -EINVAL;
+ intel_ddi_pll_enable(intel_crtc);
if (intel_crtc->config.has_dp_encoder)
intel_dp_set_m_n(intel_crtc);
@@ -7870,7 +7888,7 @@ static int i9xx_pll_refclk(struct drm_device *dev,
u32 dpll = pipe_config->dpll_hw_state.dpll;
if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN)
- return dev_priv->vbt.lvds_ssc_freq * 1000;
+ return dev_priv->vbt.lvds_ssc_freq;
else if (HAS_PCH_SPLIT(dev))
return 120000;
else if (!IS_GEN2(dev))
@@ -7933,12 +7951,17 @@ static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
else
i9xx_clock(refclk, &clock);
} else {
- bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
+ u32 lvds = I915_READ(LVDS);
+ bool is_lvds = (pipe == 1) && (lvds & LVDS_PORT_EN);
if (is_lvds) {
clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
DPLL_FPA01_P1_POST_DIV_SHIFT);
- clock.p2 = 14;
+
+ if (lvds & LVDS_CLKB_POWER_UP)
+ clock.p2 = 7;
+ else
+ clock.p2 = 14;
} else {
if (dpll & PLL_P1_DIVIDE_BY_TWO)
clock.p1 = 2;
@@ -10122,10 +10145,13 @@ static void intel_crtc_init(struct drm_device *dev, int pipe)
intel_crtc->lut_b[i] = i;
}
- /* Swap pipes & planes for FBC on pre-965 */
+ /*
+ * On gen2/3 only plane A can do fbc, but the panel fitter and lvds port
+ * is hooked to plane B. Hence we want plane A feeding pipe B.
+ */
intel_crtc->pipe = pipe;
intel_crtc->plane = pipe;
- if (IS_MOBILE(dev) && IS_GEN3(dev)) {
+ if (IS_MOBILE(dev) && INTEL_INFO(dev)->gen < 4) {
DRM_DEBUG_KMS("swapping pipes & planes for FBC\n");
intel_crtc->plane = !pipe;
}
@@ -10779,17 +10805,10 @@ static void i915_disable_vga(struct drm_device *dev)
void intel_modeset_init_hw(struct drm_device *dev)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
intel_prepare_ddi(dev);
intel_init_clock_gating(dev);
- /* Enable the CRI clock source so we can get at the display */
- if (IS_VALLEYVIEW(dev))
- I915_WRITE(DPLL(PIPE_B), I915_READ(DPLL(PIPE_B)) |
- DPLL_INTEGRATED_CRI_CLK_VLV);
-
intel_init_dpio(dev);
mutex_lock(&dev->struct_mutex);
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