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authorMa Ling <ling.ma@intel.com>2009-03-18 20:13:23 +0800
committerEric Anholt <eric@anholt.net>2009-03-27 14:45:11 -0700
commit044c7c415a68077b7c444c753aa03a35149e881a (patch)
treec8da161ad9f396773d05028b9e63e0faa62d701b /drivers/gpu/drm/i915/intel_display.c
parent568d9a8f6d4bf81e0672c74573dc02981d31e3ea (diff)
drm/i915: Use documented PLL timing limits for G4X platform
The values come from the internal reference spreadsheet on PLL timing limits for the G4X chipsets. Part of fixing fd.o bug #17508 Signed-off-by: Ma Ling <ling.ma@intel.com> [anholt: Cleaned up some whitespace] Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c187
1 files changed, 186 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index a2834276cb38..89f7af0bdb12 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -115,6 +115,89 @@ typedef struct {
#define INTEL_LIMIT_I8XX_LVDS 1
#define INTEL_LIMIT_I9XX_SDVO_DAC 2
#define INTEL_LIMIT_I9XX_LVDS 3
+#define INTEL_LIMIT_G4X_SDVO 4
+#define INTEL_LIMIT_G4X_HDMI_DAC 5
+#define INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS 6
+#define INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS 7
+
+/*The parameter is for SDVO on G4x platform*/
+#define G4X_DOT_SDVO_MIN 25000
+#define G4X_DOT_SDVO_MAX 270000
+#define G4X_VCO_MIN 1750000
+#define G4X_VCO_MAX 3500000
+#define G4X_N_SDVO_MIN 1
+#define G4X_N_SDVO_MAX 4
+#define G4X_M_SDVO_MIN 104
+#define G4X_M_SDVO_MAX 138
+#define G4X_M1_SDVO_MIN 17
+#define G4X_M1_SDVO_MAX 23
+#define G4X_M2_SDVO_MIN 5
+#define G4X_M2_SDVO_MAX 11
+#define G4X_P_SDVO_MIN 10
+#define G4X_P_SDVO_MAX 30
+#define G4X_P1_SDVO_MIN 1
+#define G4X_P1_SDVO_MAX 3
+#define G4X_P2_SDVO_SLOW 10
+#define G4X_P2_SDVO_FAST 10
+#define G4X_P2_SDVO_LIMIT 270000
+
+/*The parameter is for HDMI_DAC on G4x platform*/
+#define G4X_DOT_HDMI_DAC_MIN 22000
+#define G4X_DOT_HDMI_DAC_MAX 400000
+#define G4X_N_HDMI_DAC_MIN 1
+#define G4X_N_HDMI_DAC_MAX 4
+#define G4X_M_HDMI_DAC_MIN 104
+#define G4X_M_HDMI_DAC_MAX 138
+#define G4X_M1_HDMI_DAC_MIN 16
+#define G4X_M1_HDMI_DAC_MAX 23
+#define G4X_M2_HDMI_DAC_MIN 5
+#define G4X_M2_HDMI_DAC_MAX 11
+#define G4X_P_HDMI_DAC_MIN 5
+#define G4X_P_HDMI_DAC_MAX 80
+#define G4X_P1_HDMI_DAC_MIN 1
+#define G4X_P1_HDMI_DAC_MAX 8
+#define G4X_P2_HDMI_DAC_SLOW 10
+#define G4X_P2_HDMI_DAC_FAST 5
+#define G4X_P2_HDMI_DAC_LIMIT 165000
+
+/*The parameter is for SINGLE_CHANNEL_LVDS on G4x platform*/
+#define G4X_DOT_SINGLE_CHANNEL_LVDS_MIN 20000
+#define G4X_DOT_SINGLE_CHANNEL_LVDS_MAX 115000
+#define G4X_N_SINGLE_CHANNEL_LVDS_MIN 1
+#define G4X_N_SINGLE_CHANNEL_LVDS_MAX 3
+#define G4X_M_SINGLE_CHANNEL_LVDS_MIN 104
+#define G4X_M_SINGLE_CHANNEL_LVDS_MAX 138
+#define G4X_M1_SINGLE_CHANNEL_LVDS_MIN 17
+#define G4X_M1_SINGLE_CHANNEL_LVDS_MAX 23
+#define G4X_M2_SINGLE_CHANNEL_LVDS_MIN 5
+#define G4X_M2_SINGLE_CHANNEL_LVDS_MAX 11
+#define G4X_P_SINGLE_CHANNEL_LVDS_MIN 28
+#define G4X_P_SINGLE_CHANNEL_LVDS_MAX 112
+#define G4X_P1_SINGLE_CHANNEL_LVDS_MIN 2
+#define G4X_P1_SINGLE_CHANNEL_LVDS_MAX 8
+#define G4X_P2_SINGLE_CHANNEL_LVDS_SLOW 14
+#define G4X_P2_SINGLE_CHANNEL_LVDS_FAST 14
+#define G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT 0
+
+/*The parameter is for DUAL_CHANNEL_LVDS on G4x platform*/
+#define G4X_DOT_DUAL_CHANNEL_LVDS_MIN 80000
+#define G4X_DOT_DUAL_CHANNEL_LVDS_MAX 224000
+#define G4X_N_DUAL_CHANNEL_LVDS_MIN 1
+#define G4X_N_DUAL_CHANNEL_LVDS_MAX 3
+#define G4X_M_DUAL_CHANNEL_LVDS_MIN 104
+#define G4X_M_DUAL_CHANNEL_LVDS_MAX 138
+#define G4X_M1_DUAL_CHANNEL_LVDS_MIN 17
+#define G4X_M1_DUAL_CHANNEL_LVDS_MAX 23
+#define G4X_M2_DUAL_CHANNEL_LVDS_MIN 5
+#define G4X_M2_DUAL_CHANNEL_LVDS_MAX 11
+#define G4X_P_DUAL_CHANNEL_LVDS_MIN 14
+#define G4X_P_DUAL_CHANNEL_LVDS_MAX 42
+#define G4X_P1_DUAL_CHANNEL_LVDS_MIN 2
+#define G4X_P1_DUAL_CHANNEL_LVDS_MAX 6
+#define G4X_P2_DUAL_CHANNEL_LVDS_SLOW 7
+#define G4X_P2_DUAL_CHANNEL_LVDS_FAST 7
+#define G4X_P2_DUAL_CHANNEL_LVDS_LIMIT 0
+
static const intel_limit_t intel_limits[] = {
{ /* INTEL_LIMIT_I8XX_DVO_DAC */
@@ -168,14 +251,116 @@ static const intel_limit_t intel_limits[] = {
.p2 = { .dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
.p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST },
},
+ /* below parameter and function is for G4X Chipset Family*/
+ { /* INTEL_LIMIT_G4X_SDVO */
+ .dot = { .min = G4X_DOT_SDVO_MIN, .max = G4X_DOT_SDVO_MAX },
+ .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX},
+ .n = { .min = G4X_N_SDVO_MIN, .max = G4X_N_SDVO_MAX },
+ .m = { .min = G4X_M_SDVO_MIN, .max = G4X_M_SDVO_MAX },
+ .m1 = { .min = G4X_M1_SDVO_MIN, .max = G4X_M1_SDVO_MAX },
+ .m2 = { .min = G4X_M2_SDVO_MIN, .max = G4X_M2_SDVO_MAX },
+ .p = { .min = G4X_P_SDVO_MIN, .max = G4X_P_SDVO_MAX },
+ .p1 = { .min = G4X_P1_SDVO_MIN, .max = G4X_P1_SDVO_MAX},
+ .p2 = { .dot_limit = G4X_P2_SDVO_LIMIT,
+ .p2_slow = G4X_P2_SDVO_SLOW,
+ .p2_fast = G4X_P2_SDVO_FAST
+ },
+ },
+ { /* INTEL_LIMIT_G4X_HDMI_DAC */
+ .dot = { .min = G4X_DOT_HDMI_DAC_MIN, .max = G4X_DOT_HDMI_DAC_MAX },
+ .vco = { .min = G4X_VCO_MIN, .max = G4X_VCO_MAX},
+ .n = { .min = G4X_N_HDMI_DAC_MIN, .max = G4X_N_HDMI_DAC_MAX },
+ .m = { .min = G4X_M_HDMI_DAC_MIN, .max = G4X_M_HDMI_DAC_MAX },
+ .m1 = { .min = G4X_M1_HDMI_DAC_MIN, .max = G4X_M1_HDMI_DAC_MAX },
+ .m2 = { .min = G4X_M2_HDMI_DAC_MIN, .max = G4X_M2_HDMI_DAC_MAX },
+ .p = { .min = G4X_P_HDMI_DAC_MIN, .max = G4X_P_HDMI_DAC_MAX },
+ .p1 = { .min = G4X_P1_HDMI_DAC_MIN, .max = G4X_P1_HDMI_DAC_MAX},
+ .p2 = { .dot_limit = G4X_P2_HDMI_DAC_LIMIT,
+ .p2_slow = G4X_P2_HDMI_DAC_SLOW,
+ .p2_fast = G4X_P2_HDMI_DAC_FAST
+ },
+ },
+ { /* INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS */
+ .dot = { .min = G4X_DOT_SINGLE_CHANNEL_LVDS_MIN,
+ .max = G4X_DOT_SINGLE_CHANNEL_LVDS_MAX },
+ .vco = { .min = G4X_VCO_MIN,
+ .max = G4X_VCO_MAX },
+ .n = { .min = G4X_N_SINGLE_CHANNEL_LVDS_MIN,
+ .max = G4X_N_SINGLE_CHANNEL_LVDS_MAX },
+ .m = { .min = G4X_M_SINGLE_CHANNEL_LVDS_MIN,
+ .max = G4X_M_SINGLE_CHANNEL_LVDS_MAX },
+ .m1 = { .min = G4X_M1_SINGLE_CHANNEL_LVDS_MIN,
+ .max = G4X_M1_SINGLE_CHANNEL_LVDS_MAX },
+ .m2 = { .min = G4X_M2_SINGLE_CHANNEL_LVDS_MIN,
+ .max = G4X_M2_SINGLE_CHANNEL_LVDS_MAX },
+ .p = { .min = G4X_P_SINGLE_CHANNEL_LVDS_MIN,
+ .max = G4X_P_SINGLE_CHANNEL_LVDS_MAX },
+ .p1 = { .min = G4X_P1_SINGLE_CHANNEL_LVDS_MIN,
+ .max = G4X_P1_SINGLE_CHANNEL_LVDS_MAX },
+ .p2 = { .dot_limit = G4X_P2_SINGLE_CHANNEL_LVDS_LIMIT,
+ .p2_slow = G4X_P2_SINGLE_CHANNEL_LVDS_SLOW,
+ .p2_fast = G4X_P2_SINGLE_CHANNEL_LVDS_FAST
+ },
+ },
+ { /* INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS */
+ .dot = { .min = G4X_DOT_DUAL_CHANNEL_LVDS_MIN,
+ .max = G4X_DOT_DUAL_CHANNEL_LVDS_MAX },
+ .vco = { .min = G4X_VCO_MIN,
+ .max = G4X_VCO_MAX },
+ .n = { .min = G4X_N_DUAL_CHANNEL_LVDS_MIN,
+ .max = G4X_N_DUAL_CHANNEL_LVDS_MAX },
+ .m = { .min = G4X_M_DUAL_CHANNEL_LVDS_MIN,
+ .max = G4X_M_DUAL_CHANNEL_LVDS_MAX },
+ .m1 = { .min = G4X_M1_DUAL_CHANNEL_LVDS_MIN,
+ .max = G4X_M1_DUAL_CHANNEL_LVDS_MAX },
+ .m2 = { .min = G4X_M2_DUAL_CHANNEL_LVDS_MIN,
+ .max = G4X_M2_DUAL_CHANNEL_LVDS_MAX },
+ .p = { .min = G4X_P_DUAL_CHANNEL_LVDS_MIN,
+ .max = G4X_P_DUAL_CHANNEL_LVDS_MAX },
+ .p1 = { .min = G4X_P1_DUAL_CHANNEL_LVDS_MIN,
+ .max = G4X_P1_DUAL_CHANNEL_LVDS_MAX },
+ .p2 = { .dot_limit = G4X_P2_DUAL_CHANNEL_LVDS_LIMIT,
+ .p2_slow = G4X_P2_DUAL_CHANNEL_LVDS_SLOW,
+ .p2_fast = G4X_P2_DUAL_CHANNEL_LVDS_FAST
+ },
+ },
};
+static const intel_limit_t *intel_g4x_limit(struct drm_crtc *crtc)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+ const intel_limit_t *limit;
+
+ if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
+ if ((I915_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
+ LVDS_CLKB_POWER_UP)
+ /* LVDS with dual channel */
+ limit = &intel_limits
+ [INTEL_LIMIT_G4X_DUAL_CHANNEL_LVDS];
+ else
+ /* LVDS with dual channel */
+ limit = &intel_limits
+ [INTEL_LIMIT_G4X_SINGLE_CHANNEL_LVDS];
+ } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_HDMI) ||
+ intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG)) {
+ limit = &intel_limits[INTEL_LIMIT_G4X_HDMI_DAC];
+ } else if (intel_pipe_has_type(crtc, INTEL_OUTPUT_SDVO)) {
+ limit = &intel_limits[INTEL_LIMIT_G4X_SDVO];
+ } else /* The option is for other outputs */
+ limit = &intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC];
+
+ return limit;
+}
+
static const intel_limit_t *intel_limit(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
const intel_limit_t *limit;
- if (IS_I9XX(dev)) {
+ if (IS_G4X(dev)) {
+ limit = intel_g4x_limit(crtc);
+ } else if (IS_I9XX(dev)) {
if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
limit = &intel_limits[INTEL_LIMIT_I9XX_LVDS];
else

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