[igt-dev] [PATCH i-g-t] tests/intel/kms_pm_dc: Add LNL platform for dc9-dpms validation

[Mohammed Thasleem]

DC5 counter on disp ver >=14 is not expected to get reset in DC9 state.
Add LNL patform to use runtime_suspended_time value to validate DC9
dpms test.

v2: Update subject and commit message. (Swati)

Signed-off-by: Mohammed Thasleem <mohammed.thasleem at intel.com>
---
 lib/intel_chipset.h     | 1 +
 tests/intel/kms_pm_dc.c | 4 ++--
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/intel_chipset.h b/lib/intel_chipset.h
index 1edc8e92c..3f2534519 100644
--- a/lib/intel_chipset.h
+++ b/lib/intel_chipset.h
@@ -208,6 +208,7 @@ void intel_check_pch(void);
 
 #define IS_GEN(devid, x)	(intel_get_device_info(devid)->graphics_ver == x)
 #define AT_LEAST_GEN(devid, x)	(intel_get_device_info(devid)->graphics_ver >= x)
+#define AT_LEAST_DISPLAY(devid, x) (intel_get_device_info(devid)->display_ver >= x)
 
 #define IS_GEN2(devid)		IS_GEN(devid, 2)
 #define IS_GEN3(devid)		IS_GEN(devid, 3)
diff --git a/tests/intel/kms_pm_dc.c b/tests/intel/kms_pm_dc.c
index 8006e54de..0d5824e67 100644
--- a/tests/intel/kms_pm_dc.c
+++ b/tests/intel/kms_pm_dc.c
@@ -88,7 +88,7 @@
 #define KMS_HELPER "/sys/module/drm_kms_helper/parameters/"
 #define PACKAGE_CSTATE_PATH  "pmc_core/package_cstate_show"
 #define KMS_POLL_DISABLE 0
-#define DC9_RESETS_DC_COUNTERS(devid) (!(IS_DG1(devid) || IS_DG2(devid) || IS_METEORLAKE(devid)))
+#define DC9_RESETS_DC_COUNTERS(devid) (!(IS_DG1(devid) || IS_DG2(devid) || AT_LEAST_DISPLAY(devid, 14)))
 
 IGT_TEST_DESCRIPTION("Tests to validate display power DC states.");
 
@@ -505,7 +505,7 @@ static bool dc9_wait_entry(data_t *data, int dc_target, int prev_dc, int prev_rp
 	 * Runtime suspended residency should increment once DC9 is achieved;
 	 * this condition is valid for all platforms.
 	 * However, resetting of dc5/dc6 counter to check if display engine was in DC9;
-	 * this condition at present can be skipped for dg1, dg2 and MTL platforms.
+	 * this condition at present can be skipped for dg1, dg2 and MTL+ platforms.
 	 */
 	return igt_wait((read_runtime_suspended_time(data->drm_fd) > prev_rpm) &&
 			(!DC9_RESETS_DC_COUNTERS(data->devid) ||
-- 
2.25.1