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* [igt-dev] [PATCH] [intel-gfx] [PATCH i-g-t] tests/pm_backlight.c : Brightness test with DPMS and System suspend.
@ 2018-08-31  4:39 Jyoti Yadav
  2018-08-31  4:58 ` [igt-dev] ✓ Fi.CI.BAT: success for tests/pm_backlight.c : Brightness test with DPMS and System suspend. (rev4) Patchwork
                   ` (2 more replies)
  0 siblings, 3 replies; 5+ messages in thread
From: Jyoti Yadav @ 2018-08-31  4:39 UTC (permalink / raw)
  To: igt-dev; +Cc: Jyoti, intel-gfx, rodrigo.vivi

From: Jyoti <jyoti.r.yadav@intel.com>

BIOS programs few of PWM related registers during initial boot.
But during System suspend those registers are cleared.
This test aim to check whether display programs those registers properly after
system resume.
Also checks brightness programming during DPMS ON/OFF cycle to check backlight
programming is done properly from display side.

v2 : Optimize the code to avoid code redundancy. (Rodrigo)

Signed-off-by: Jyoti Yadav <jyoti.r.yadav@intel.com>
---
 tests/pm_backlight.c | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/tests/pm_backlight.c b/tests/pm_backlight.c
index a695f90..8b5c79d 100644
--- a/tests/pm_backlight.c
+++ b/tests/pm_backlight.c
@@ -47,6 +47,7 @@ struct context {
 #define FADESPEED 100 /* milliseconds between steps */
 
 IGT_TEST_DESCRIPTION("Basic backlight sysfs test");
+static int8_t *pm_data = NULL;
 
 static int backlight_read(int *result, const char *fname)
 {
@@ -150,19 +151,38 @@ static void test_fade(struct context *context)
 		nanosleep(&ts, NULL);
 	}
 }
+static void test_fade_with_dpms(struct context *context, igt_output_t *output)
+{
+	bool has_runtime_pm;
+	has_runtime_pm = igt_setup_runtime_pm();
+	igt_info("Runtime PM support: %d\n", has_runtime_pm);
+	igt_assert(has_runtime_pm);
+	kmstest_set_connector_dpms(output->display->drm_fd, output->config.connector, DRM_MODE_DPMS_OFF);
+	igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+	kmstest_set_connector_dpms(output->display->drm_fd, output->config.connector, DRM_MODE_DPMS_ON);
+	igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_ACTIVE));
+	test_fade(context);
+}
+static void test_fade_with_suspend(struct context *context, igt_output_t *output)
+{
+	kmstest_set_connector_dpms(output->display->drm_fd, output->config.connector, DRM_MODE_DPMS_OFF);
+	igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
+	igt_system_suspend_autoresume(SUSPEND_STATE_MEM, SUSPEND_TEST_NONE);
+	test_fade(context);
+}
 
 igt_main
 {
 	struct context context = {0};
 	int old;
 	igt_display_t display;
+	igt_output_t *output;
 	struct igt_fb fb;
 
 	igt_skip_on_simulation();
 
 	igt_fixture {
 		enum pipe pipe;
-		igt_output_t *output;
 		bool found = false;
 		char full_name[32] = {};
 		char *name;
@@ -187,7 +207,6 @@ igt_main
 		for_each_pipe_with_valid_output(&display, pipe, output) {
 			if (strcmp(name + 6, output->name))
 				continue;
-
 			found = true;
 			break;
 		}
@@ -205,6 +224,7 @@ igt_main
 		igt_plane_set_fb(primary, &fb);
 
 		igt_display_commit2(&display, display.is_atomic ? COMMIT_ATOMIC : COMMIT_LEGACY);
+		pm_data = igt_pm_enable_sata_link_power_management();
 	}
 
 	igt_subtest("basic-brightness")
@@ -213,6 +233,10 @@ igt_main
 		test_bad_brightness(&context);
 	igt_subtest("fade")
 		test_fade(&context);
+	igt_subtest("fade_with_dpms")
+		test_fade_with_dpms(&context, output);
+	igt_subtest("fade_with_suspend")
+		test_fade_with_suspend(&context, output);
 
 	igt_fixture {
 		/* Restore old brightness */
@@ -220,6 +244,8 @@ igt_main
 
 		igt_display_fini(&display);
 		igt_remove_fb(display.drm_fd, &fb);
+		igt_pm_restore_sata_link_power_management(pm_data);
+		free(pm_data);
 		close(display.drm_fd);
 	}
 }
-- 
1.9.1

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^ permalink raw reply related	[flat|nested] 5+ messages in thread
end of thread, other threads:[~2018-09-28 13:37 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-08-31  4:39 [igt-dev] [PATCH] [intel-gfx] [PATCH i-g-t] tests/pm_backlight.c : Brightness test with DPMS and System suspend Jyoti Yadav
2018-08-31  4:58 ` [igt-dev] ✓ Fi.CI.BAT: success for tests/pm_backlight.c : Brightness test with DPMS and System suspend. (rev4) Patchwork
2018-08-31  7:17 ` [igt-dev] ✓ Fi.CI.IGT: " Patchwork
2018-08-31 14:09 ` [igt-dev] [PATCH] [intel-gfx] [PATCH i-g-t] tests/pm_backlight.c : Brightness test with DPMS and System suspend Rodrigo Vivi
2018-09-28 13:37   ` Jani Nikula

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