summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/i915/i915_reg.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
-rw-r--r--drivers/gpu/drm/i915/i915_reg.h55
1 files changed, 35 insertions, 20 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 20244b9..c4b1a2b 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1807,18 +1807,35 @@
#define PFIT_AUTO_RATIOS 0x61238
/* Backlight control */
-#define BLC_PWM_CTL 0x61254
-#define BACKLIGHT_MODULATION_FREQ_SHIFT (17)
#define BLC_PWM_CTL2 0x61250 /* 965+ only */
-#define BLM_COMBINATION_MODE (1 << 30)
+#define BLM_PWM_ENABLE (1 << 31)
+#define BLM_COMBINATION_MODE (1 << 30) /* gen4 only */
+#define BLM_PIPE_SELECT (1 << 29)
+#define BLM_PIPE_SELECT_IVB (3 << 29)
+#define BLM_PIPE_A (0 << 29)
+#define BLM_PIPE_B (1 << 29)
+#define BLM_PIPE_C (2 << 29) /* ivb + */
+#define BLM_PIPE(pipe) ((pipe) << 29)
+#define BLM_POLARITY_I965 (1 << 28) /* gen4 only */
+#define BLM_PHASE_IN_INTERUPT_STATUS (1 << 26)
+#define BLM_PHASE_IN_ENABLE (1 << 25)
+#define BLM_PHASE_IN_INTERUPT_ENABL (1 << 24)
+#define BLM_PHASE_IN_TIME_BASE_SHIFT (16)
+#define BLM_PHASE_IN_TIME_BASE_MASK (0xff << 16)
+#define BLM_PHASE_IN_COUNT_SHIFT (8)
+#define BLM_PHASE_IN_COUNT_MASK (0xff << 8)
+#define BLM_PHASE_IN_INCR_SHIFT (0)
+#define BLM_PHASE_IN_INCR_MASK (0xff << 0)
+#define BLC_PWM_CTL 0x61254
/*
* This is the most significant 15 bits of the number of backlight cycles in a
* complete cycle of the modulated backlight control.
*
* The actual value is this field multiplied by two.
*/
-#define BACKLIGHT_MODULATION_FREQ_MASK (0x7fff << 17)
-#define BLM_LEGACY_MODE (1 << 16)
+#define BACKLIGHT_MODULATION_FREQ_SHIFT (17)
+#define BACKLIGHT_MODULATION_FREQ_MASK (0x7fff << 17)
+#define BLM_LEGACY_MODE (1 << 16) /* gen2 only */
/*
* This is the number of cycles out of the backlight modulation cycle for which
* the backlight is on.
@@ -1833,6 +1850,19 @@
#define BLC_HIST_CTL 0x61260
+/* New registers for PCH-split platforms. Safe where new bits show up, the
+ * register layout machtes with gen4 BLC_PWM_CTL[12]. */
+#define BLC_PWM_CPU_CTL2 0x48250
+#define BLC_PWM_CPU_CTL 0x48254
+
+/* PCH CTL1 is totally different, all but the below bits are reserved. CTL2 is
+ * like the normal CTL from gen4 and earlier. Hooray for confusing naming. */
+#define BLC_PWM_PCH_CTL1 0xc8250
+#define BLM_PCH_PWM_ENABLE (1 << 30)
+#define BLM_PCH_OVERRIDE_ENABLE (1 << 30)
+#define BLM_PCH_POLARITY (1 << 29)
+#define BLC_PWM_PCH_CTL2 0xc8254
+
/* TV port control */
#define TV_CTL 0x68000
/** Enables the TV encoder */
@@ -3840,21 +3870,6 @@
#define PCH_LVDS 0xe1180
#define LVDS_DETECTED (1 << 1)
-#define BLC_PWM_CPU_CTL2 0x48250
-#define PWM_ENABLE (1 << 31)
-#define PWM_PIPE_A (0 << 29)
-#define PWM_PIPE_B (1 << 29)
-#define BLC_PWM_CPU_CTL 0x48254
-
-#define BLC_PWM_PCH_CTL1 0xc8250
-#define PWM_PCH_ENABLE (1 << 31)
-#define PWM_POLARITY_ACTIVE_LOW (1 << 29)
-#define PWM_POLARITY_ACTIVE_HIGH (0 << 29)
-#define PWM_POLARITY_ACTIVE_LOW2 (1 << 28)
-#define PWM_POLARITY_ACTIVE_HIGH2 (0 << 28)
-
-#define BLC_PWM_PCH_CTL2 0xc8254
-
#define PCH_PP_STATUS 0xc7200
#define PCH_PP_CONTROL 0xc7204
#define PANEL_UNLOCK_REGS (0xabcd << 16)