[v2 04/19] drm/{i915, xe}: Extract DSPCLK_GATE_D from i915_reg to display

Uma Shankar
2026-01-21T23:08:38Z

Move DSPCLK_GATE_D register definition to display header.
This allows intel_gmbus.c free of i915_reg.h include.

v2: Drop common header in include and use display_regs.h (Jani)

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
---
.../gpu/drm/i915/display/intel_display_regs.h | 50 +++++++++++++++++++
drivers/gpu/drm/i915/display/intel_gmbus.c | 1 -
drivers/gpu/drm/i915/i915_reg.h | 50 -------------------
3 files changed, 50 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_regs.h b/drivers/gpu/drm/i915/display/intel_display_regs.h
index 1f922d013cd3..5136b7166775 100644
--- a/drivers/gpu/drm/i915/display/intel_display_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_display_regs.h
@@ -160,6 +160,47 @@

#define DPLL_FPA01_P1_POST_DIV_MASK_I830 0x001f0000

+#define DSPCLK_GATE_D _MMIO(0x6200)
+#define VLV_DSPCLK_GATE_D _MMIO(VLV_DISPLAY_BASE + 0x6200)
+# define DPUNIT_B_CLOCK_GATE_DISABLE (1 << 30) /* 965 */
+# define VSUNIT_CLOCK_GATE_DISABLE (1 << 29) /* 965 */
+# define VRHUNIT_CLOCK_GATE_DISABLE (1 << 28) /* 965 */
+# define VRDUNIT_CLOCK_GATE_DISABLE (1 << 27) /* 965 */
+# define AUDUNIT_CLOCK_GATE_DISABLE (1 << 26) /* 965 */
+# define DPUNIT_A_CLOCK_GATE_DISABLE (1 << 25) /* 965 */
+# define DPCUNIT_CLOCK_GATE_DISABLE (1 << 24) /* 965 */
+# define PNV_GMBUSUNIT_CLOCK_GATE_DISABLE (1 << 24) /* pnv */
+# define TVRUNIT_CLOCK_GATE_DISABLE (1 << 23) /* 915-945 */
+# define TVCUNIT_CLOCK_GATE_DISABLE (1 << 22) /* 915-945 */
+# define TVFUNIT_CLOCK_GATE_DISABLE (1 << 21) /* 915-945 */
+# define TVEUNIT_CLOCK_GATE_DISABLE (1 << 20) /* 915-945 */
+# define DVSUNIT_CLOCK_GATE_DISABLE (1 << 19) /* 915-945 */
+# define DSSUNIT_CLOCK_GATE_DISABLE (1 << 18) /* 915-945 */
+# define DDBUNIT_CLOCK_GATE_DISABLE (1 << 17) /* 915-945 */
+# define DPRUNIT_CLOCK_GATE_DISABLE (1 << 16) /* 915-945 */
+# define DPFUNIT_CLOCK_GATE_DISABLE (1 << 15) /* 915-945 */
+# define DPBMUNIT_CLOCK_GATE_DISABLE (1 << 14) /* 915-945 */
+# define DPLSUNIT_CLOCK_GATE_DISABLE (1 << 13) /* 915-945 */
+# define DPLUNIT_CLOCK_GATE_DISABLE (1 << 12) /* 915-945 */
+# define DPOUNIT_CLOCK_GATE_DISABLE (1 << 11)
+# define DPBUNIT_CLOCK_GATE_DISABLE (1 << 10)
+# define DCUNIT_CLOCK_GATE_DISABLE (1 << 9)
+# define DPUNIT_CLOCK_GATE_DISABLE (1 << 8)
+# define VRUNIT_CLOCK_GATE_DISABLE (1 << 7) /* 915+: reserved */
+# define OVHUNIT_CLOCK_GATE_DISABLE (1 << 6) /* 830-865 */
+# define DPIOUNIT_CLOCK_GATE_DISABLE (1 << 6) /* 915-945 */
+# define OVFUNIT_CLOCK_GATE_DISABLE (1 << 5)
+# define OVBUNIT_CLOCK_GATE_DISABLE (1 << 4)
+/*
+ * This bit must be set on the 830 to prevent hangs when turning off the
+ * overlay scaler.
+ */
+# define OVRUNIT_CLOCK_GATE_DISABLE (1 << 3)
+# define OVCUNIT_CLOCK_GATE_DISABLE (1 << 2)
+# define OVUUNIT_CLOCK_GATE_DISABLE (1 << 1)
+# define ZVUNIT_CLOCK_GATE_DISABLE (1 << 0) /* 830 */
+# define OVLUNIT_CLOCK_GATE_DISABLE (1 << 0) /* 845,865 */
+
/* Additional CHV pll/phy registers */
#define DPIO_PHY_STATUS _MMIO(VLV_DISPLAY_BASE + 0x6240)
#define DPLL_PORTD_READY_MASK (0xf)
@@ -2926,6 +2967,15 @@ enum skl_power_gate {
#define LPT_PWM_GRANULARITY (1 << 5)
#define DPLS_EDP_PPS_FIX_DIS (1 << 0)

+#define SOUTH_DSPCLK_GATE_D _MMIO(0xc2020)
+#define PCH_GMBUSUNIT_CLOCK_GATE_DISABLE (1 << 31)
+#define PCH_DPLUNIT_CLOCK_GATE_DISABLE (1 << 30)
+#define PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1 << 29)
+#define PCH_DPMGUNIT_CLOCK_GATE_DISABLE (1 << 15)
+#define PCH_CPUNIT_CLOCK_GATE_DISABLE (1 << 14)
+#define CNP_PWM_CGE_GATING_DISABLE (1 << 13)
+#define PCH_LP_PARTITION_LEVEL_DISABLE (1 << 12)
+
/* Gen4+ Timestamp and Pipe Frame time stamp registers */
#define GEN4_TIMESTAMP _MMIO(0x2358)
#define ILK_TIMESTAMP_HI _MMIO(0x70070)
diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c
index 2caff677600c..81b6c6991323 100644
--- a/drivers/gpu/drm/i915/display/intel_gmbus.c
+++ b/drivers/gpu/drm/i915/display/intel_gmbus.c
@@ -35,7 +35,6 @@
#include <drm/drm_print.h>
#include <drm/display/drm_hdcp_helper.h>

-#include "i915_reg.h"
#include "intel_de.h"
#include "intel_display_regs.h"
#include "intel_display_types.h"
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 5cd124083c17..dc13f9eb4cd7 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -613,47 +613,6 @@
#define DSTATE_GFX_CLOCK_GATING (1 << 1)
#define DSTATE_DOT_CLOCK_GATING (1 << 0)

-#define DSPCLK_GATE_D _MMIO(0x6200)
-#define VLV_DSPCLK_GATE_D _MMIO(VLV_DISPLAY_BASE + 0x6200)
-# define DPUNIT_B_CLOCK_GATE_DISABLE (1 << 30) /* 965 */
-# define VSUNIT_CLOCK_GATE_DISABLE (1 << 29) /* 965 */
-# define VRHUNIT_CLOCK_GATE_DISABLE (1 << 28) /* 965 */
-# define VRDUNIT_CLOCK_GATE_DISABLE (1 << 27) /* 965 */
-# define AUDUNIT_CLOCK_GATE_DISABLE (1 << 26) /* 965 */
-# define DPUNIT_A_CLOCK_GATE_DISABLE (1 << 25) /* 965 */
-# define DPCUNIT_CLOCK_GATE_DISABLE (1 << 24) /* 965 */
-# define PNV_GMBUSUNIT_CLOCK_GATE_DISABLE (1 << 24) /* pnv */
-# define TVRUNIT_CLOCK_GATE_DISABLE (1 << 23) /* 915-945 */
-# define TVCUNIT_CLOCK_GATE_DISABLE (1 << 22) /* 915-945 */
-# define TVFUNIT_CLOCK_GATE_DISABLE (1 << 21) /* 915-945 */
-# define TVEUNIT_CLOCK_GATE_DISABLE (1 << 20) /* 915-945 */
-# define DVSUNIT_CLOCK_GATE_DISABLE (1 << 19) /* 915-945 */
-# define DSSUNIT_CLOCK_GATE_DISABLE (1 << 18) /* 915-945 */
-# define DDBUNIT_CLOCK_GATE_DISABLE (1 << 17) /* 915-945 */
-# define DPRUNIT_CLOCK_GATE_DISABLE (1 << 16) /* 915-945 */
-# define DPFUNIT_CLOCK_GATE_DISABLE (1 << 15) /* 915-945 */
-# define DPBMUNIT_CLOCK_GATE_DISABLE (1 << 14) /* 915-945 */
-# define DPLSUNIT_CLOCK_GATE_DISABLE (1 << 13) /* 915-945 */
-# define DPLUNIT_CLOCK_GATE_DISABLE (1 << 12) /* 915-945 */
-# define DPOUNIT_CLOCK_GATE_DISABLE (1 << 11)
-# define DPBUNIT_CLOCK_GATE_DISABLE (1 << 10)
-# define DCUNIT_CLOCK_GATE_DISABLE (1 << 9)
-# define DPUNIT_CLOCK_GATE_DISABLE (1 << 8)
-# define VRUNIT_CLOCK_GATE_DISABLE (1 << 7) /* 915+: reserved */
-# define OVHUNIT_CLOCK_GATE_DISABLE (1 << 6) /* 830-865 */
-# define DPIOUNIT_CLOCK_GATE_DISABLE (1 << 6) /* 915-945 */
-# define OVFUNIT_CLOCK_GATE_DISABLE (1 << 5)
-# define OVBUNIT_CLOCK_GATE_DISABLE (1 << 4)
-/*
- * This bit must be set on the 830 to prevent hangs when turning off the
- * overlay scaler.
- */
-# define OVRUNIT_CLOCK_GATE_DISABLE (1 << 3)
-# define OVCUNIT_CLOCK_GATE_DISABLE (1 << 2)
-# define OVUUNIT_CLOCK_GATE_DISABLE (1 << 1)
-# define ZVUNIT_CLOCK_GATE_DISABLE (1 << 0) /* 830 */
-# define OVLUNIT_CLOCK_GATE_DISABLE (1 << 0) /* 845,865 */
-
#define RENCLK_GATE_D1 _MMIO(0x6204)
# define BLITTER_CLOCK_GATE_DISABLE (1 << 13) /* 945GM only */
# define MPEG_CLOCK_GATE_DISABLE (1 << 12) /* 945GM only */
@@ -989,15 +948,6 @@
#define TRANS_CHICKEN1_HDMIUNIT_GC_DISABLE REG_BIT(10)
#define TRANS_CHICKEN1_DP0UNIT_GC_DISABLE REG_BIT(4)

-#define SOUTH_DSPCLK_GATE_D _MMIO(0xc2020)
-#define PCH_GMBUSUNIT_CLOCK_GATE_DISABLE (1 << 31)
-#define PCH_DPLUNIT_CLOCK_GATE_DISABLE (1 << 30)
-#define PCH_DPLSUNIT_CLOCK_GATE_DISABLE (1 << 29)
-#define PCH_DPMGUNIT_CLOCK_GATE_DISABLE (1 << 15)
-#define PCH_CPUNIT_CLOCK_GATE_DISABLE (1 << 14)
-#define CNP_PWM_CGE_GATING_DISABLE (1 << 13)
-#define PCH_LP_PARTITION_LEVEL_DISABLE (1 << 12)
-
#define VLV_PMWGICZ _MMIO(0x1300a4)

#define HSW_EDRAM_CAP _MMIO(0x120010)
--
2.50.1