diff mbox series

[v2,2/3] drm/i915/psr: LunarLake PSR2_CTL[IO Wake Lines] is 6 bits wide

Message ID 20240517073005.2414293-3-jouni.hogander@intel.com (mailing list archive)
State New, archived
Headers show
Series LunarLake IO and Fast Wake changes | expand

Commit Message

Hogander, Jouni May 17, 2024, 7:30 a.m. UTC 
On LunarLake  PSR2_CTL[IO Wake Lines] contains now bit 13:18. Take this
into account when enabling PSR2_CTL.

Bspec: 69885

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_psr.c      | 2 ++
 drivers/gpu/drm/i915/display/intel_psr_regs.h | 4 ++++
 2 files changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index f5d3eb776833..d2f6488b8fc7 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -958,6 +958,8 @@  static void hsw_activate_psr2(struct intel_dp *intel_dp)
 
 		tmp = map[psr->alpm_parameters.fast_wake_lines - TGL_EDP_PSR2_FAST_WAKE_MIN_LINES];
 		val |= TGL_EDP_PSR2_FAST_WAKE(tmp + TGL_EDP_PSR2_FAST_WAKE_MIN_LINES);
+	} else if (DISPLAY_VER(dev_priv) >= 20) {
+		val |= LNL_EDP_PSR2_IO_BUFFER_WAKE(psr->alpm_parameters.io_wake_lines);
 	} else if (DISPLAY_VER(dev_priv) >= 12) {
 		val |= TGL_EDP_PSR2_IO_BUFFER_WAKE(psr->alpm_parameters.io_wake_lines);
 		val |= TGL_EDP_PSR2_FAST_WAKE(psr->alpm_parameters.fast_wake_lines);
diff --git a/drivers/gpu/drm/i915/display/intel_psr_regs.h b/drivers/gpu/drm/i915/display/intel_psr_regs.h
index e14cb48f2614..b6a39926ccb6 100644
--- a/drivers/gpu/drm/i915/display/intel_psr_regs.h
+++ b/drivers/gpu/drm/i915/display/intel_psr_regs.h
@@ -172,6 +172,10 @@ 
 #define   TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES	5
 #define   TGL_EDP_PSR2_IO_BUFFER_WAKE(lines)	REG_FIELD_PREP(TGL_EDP_PSR2_IO_BUFFER_WAKE_MASK, \
 							       (lines) - TGL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES)
+#define   LNL_EDP_PSR2_IO_BUFFER_WAKE_MASK	REG_GENMASK(18, 13)
+#define   LNL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES	5
+#define   LNL_EDP_PSR2_IO_BUFFER_WAKE(lines)	REG_FIELD_PREP(LNL_EDP_PSR2_IO_BUFFER_WAKE_MASK, \
+							       (lines) - LNL_EDP_PSR2_IO_BUFFER_WAKE_MIN_LINES)
 #define   EDP_PSR2_FAST_WAKE_MASK		REG_GENMASK(12, 11)
 #define   EDP_PSR2_FAST_WAKE_MAX_LINES		8
 #define   EDP_PSR2_FAST_WAKE(lines)		REG_FIELD_PREP(EDP_PSR2_FAST_WAKE_MASK, \