[PATCH v5 15/22] drm/modes: Introduce more named modes

Maxime Ripard
2022-10-13T13:34:43Z

Now that we can easily extend the named modes list, let's add a few more
analog TV modes that were used in the wild, and some unit tests to make
sure it works as intended.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>

---
Changes in v5:
- Switched to KUNIT_ASSERT_NOT_NULL
---
drivers/gpu/drm/drm_modes.c | 2 +
drivers/gpu/drm/tests/drm_client_modeset_test.c | 54 +++++++++++++++++++++++++
2 files changed, 56 insertions(+)

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index fe818252cd8f..e3307662d6da 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -2271,7 +2271,9 @@ struct drm_named_mode {

static const struct drm_named_mode drm_named_modes[] = {
NAMED_MODE("NTSC", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE, DRM_MODE_TV_MODE_NTSC),
+ NAMED_MODE("NTSC-J", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE, DRM_MODE_TV_MODE_NTSC_J),
NAMED_MODE("PAL", 13500, 720, 576, DRM_MODE_FLAG_INTERLACE, DRM_MODE_TV_MODE_PAL),
+ NAMED_MODE("PAL-M", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE, DRM_MODE_TV_MODE_PAL_M),
};

static int drm_mode_parse_cmdline_named_mode(const char *name,
diff --git a/drivers/gpu/drm/tests/drm_client_modeset_test.c b/drivers/gpu/drm/tests/drm_client_modeset_test.c
index d5370d5ac1ec..fdb0eeb8a669 100644
--- a/drivers/gpu/drm/tests/drm_client_modeset_test.c
+++ b/drivers/gpu/drm/tests/drm_client_modeset_test.c
@@ -133,6 +133,32 @@ static void drm_pick_cmdline_named_ntsc(struct kunit *test)
KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_ntsc_480i(drm), mode));
}

+static void drm_pick_cmdline_named_ntsc_j(struct kunit *test)
+{
+ struct drm_client_modeset_test_priv *priv = test->priv;
+ struct drm_device *drm = priv->drm;
+ struct drm_connector *connector = &priv->connector;
+ struct drm_cmdline_mode *cmdline_mode = &connector->cmdline_mode;
+ struct drm_display_mode *mode;
+ const char *cmdline = "NTSC-J";
+ int ret;
+
+ KUNIT_ASSERT_TRUE(test,
+ drm_mode_parse_command_line_for_connector(cmdline,
+ connector,
+ cmdline_mode));
+
+ mutex_lock(&drm->mode_config.mutex);
+ ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+ mutex_unlock(&drm->mode_config.mutex);
+ KUNIT_ASSERT_GT(test, ret, 0);
+
+ mode = drm_connector_pick_cmdline_mode(connector);
+ KUNIT_ASSERT_NOT_NULL(test, mode);
+
+ KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_ntsc_480i(drm), mode));
+}
+
static void drm_pick_cmdline_named_pal(struct kunit *test)
{
struct drm_client_modeset_test_priv *priv = test->priv;
@@ -159,10 +185,38 @@ static void drm_pick_cmdline_named_pal(struct kunit *test)
KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_pal_576i(drm), mode));
}

+static void drm_pick_cmdline_named_pal_m(struct kunit *test)
+{
+ struct drm_client_modeset_test_priv *priv = test->priv;
+ struct drm_device *drm = priv->drm;
+ struct drm_connector *connector = &priv->connector;
+ struct drm_cmdline_mode *cmdline_mode = &connector->cmdline_mode;
+ struct drm_display_mode *mode;
+ const char *cmdline = "PAL-M";
+ int ret;
+
+ KUNIT_ASSERT_TRUE(test,
+ drm_mode_parse_command_line_for_connector(cmdline,
+ connector,
+ cmdline_mode));
+
+ mutex_lock(&drm->mode_config.mutex);
+ ret = drm_helper_probe_single_connector_modes(connector, 1920, 1080);
+ mutex_unlock(&drm->mode_config.mutex);
+ KUNIT_ASSERT_GT(test, ret, 0);
+
+ mode = drm_connector_pick_cmdline_mode(connector);
+ KUNIT_ASSERT_NOT_NULL(test, mode);
+
+ KUNIT_EXPECT_TRUE(test, drm_mode_equal(drm_mode_analog_ntsc_480i(drm), mode));
+}
+
static struct kunit_case drm_pick_cmdline_tests[] = {
KUNIT_CASE(drm_pick_cmdline_res_1920_1080_60),
KUNIT_CASE(drm_pick_cmdline_named_ntsc),
+ KUNIT_CASE(drm_pick_cmdline_named_ntsc_j),
KUNIT_CASE(drm_pick_cmdline_named_pal),
+ KUNIT_CASE(drm_pick_cmdline_named_pal_m),
{}
};

--
b4 0.11.0-dev-7da52