linux-kernel - [PATCH v1 35/35] drm/modes: Introduce more named modes

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Message-Id: <20220728-rpi-analog-tv-properties-v1-35-3d53ae722097@cerno.tech>
Date:   Fri, 29 Jul 2022 18:35:18 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Jernej Skrabec <jernej.skrabec@...il.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Jerome Brunet <jbrunet@...libre.com>,
        Samuel Holland <samuel@...lland.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Daniel Vetter <daniel@...ll.ch>, Emma Anholt <emma@...olt.net>,
        David Airlie <airlied@...ux.ie>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Noralf Trønnes <noralf@...nnes.org>,
        Kevin Hilman <khilman@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Maxime Ripard <mripard@...nel.org>
Cc:     Maxime Ripard <maxime@...no.tech>, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org, Phil Elwell <phil@...pberrypi.com>,
        Mateusz Kwiatkowski <kfyatek+publicgit@...il.com>,
        linux-arm-kernel@...ts.infradead.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        linux-amlogic@...ts.infradead.org, dri-devel@...ts.freedesktop.org,
        Dom Cobley <dom@...pberrypi.com>
Subject: [PATCH v1 35/35] drm/modes: Introduce more named modes

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@...no.tech>

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 3634ac9f787d..09ed5ce7746d 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1853,7 +1853,9 @@ struct drm_named_mode {
 
 static const struct drm_named_mode drm_named_modes[] = {
 	{ "NTSC", &drm_mode_480i, DRM_MODE_TV_NORM_NTSC_M, },
+	{ "NTSC_J", &drm_mode_480i, DRM_MODE_TV_NORM_NTSC_J, },
 	{ "PAL", &drm_mode_576i, DRM_MODE_TV_NORM_PAL_B, },
+	{ "PAL_M", &drm_mode_480i, DRM_MODE_TV_NORM_PAL_M, },
 };
 
 static bool drm_mode_parse_cmdline_named_mode(const char *name,
diff --git a/drivers/gpu/drm/tests/drm_mode_test.c b/drivers/gpu/drm/tests/drm_mode_test.c
index 006b73a61fd4..991eb8ed687c 100644
--- a/drivers/gpu/drm/tests/drm_mode_test.c
+++ b/drivers/gpu/drm/tests/drm_mode_test.c
@@ -156,6 +156,32 @@ static void drm_mode_named_ntsc(struct kunit *test)
 	KUNIT_EXPECT_TRUE(test, drm_mode_equal(&drm_mode_480i, mode));
 }
 
+static void drm_mode_named_ntsc_j(struct kunit *test)
+{
+	struct drm_mode_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_PTR_NE(test, mode, NULL);
+
+	KUNIT_EXPECT_TRUE(test, drm_mode_equal(&drm_mode_480i, mode));
+}
+
 static void drm_mode_named_pal(struct kunit *test)
 {
 	struct drm_mode_test_priv *priv = test->priv;
@@ -182,10 +208,38 @@ static void drm_mode_named_pal(struct kunit *test)
 	KUNIT_EXPECT_TRUE(test, drm_mode_equal(&drm_mode_576i, mode));
 }
 
+static void drm_mode_named_pal_m(struct kunit *test)
+{
+	struct drm_mode_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_PTR_NE(test, mode, NULL);
+
+	KUNIT_EXPECT_TRUE(test, drm_mode_equal(&drm_mode_480i, mode));
+}
+
 static struct kunit_case drm_mode_tests[] = {
 	KUNIT_CASE(drm_mode_res_1920_1080_60),
 	KUNIT_CASE(drm_mode_named_ntsc),
+	KUNIT_CASE(drm_mode_named_ntsc_j),
 	KUNIT_CASE(drm_mode_named_pal),
+	KUNIT_CASE(drm_mode_named_pal_m),
 	{}
 };
 

-- 
b4 0.10.0-dev-49460