diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0645-drm-modes-Parse-overscan-properties.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0645-drm-modes-Parse-overscan-properties.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0645-drm-modes-Parse-overscan-properties.patch b/target/linux/brcm2708/patches-4.19/950-0645-drm-modes-Parse-overscan-properties.patch new file mode 100644 index 0000000000..f8de9b5fc3 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0645-drm-modes-Parse-overscan-properties.patch @@ -0,0 +1,102 @@ +From 99b367ee521e48beae92bea59515dd0f08f2e55b Mon Sep 17 00:00:00 2001 +From: Maxime Ripard <maxime.ripard@bootlin.com> +Date: Wed, 19 Jun 2019 12:17:51 +0200 +Subject: [PATCH] drm/modes: Parse overscan properties +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Commit 3d46a3007cd8f73bae502bf5c171977b91d7aacc upstream. + +Properly configuring the overscan properties might be needed for the +initial setup of the framebuffer for display that still have overscan. +Let's allow for more properties on the kernel command line to setup each +margin. + +Reviewed-by: Noralf Trønnes <noralf@tronnes.org> +Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> +Link: https://patchwork.freedesktop.org/patch/msgid/e481f1628e3768ca49226ec2115cfa4dfcbd5e4c.1560783090.git-series.maxime.ripard@bootlin.com +--- + Documentation/fb/modedb.txt | 2 ++ + drivers/gpu/drm/drm_modes.c | 44 +++++++++++++++++++++++++++++++++++++ + include/drm/drm_connector.h | 5 +++++ + 3 files changed, 51 insertions(+) + +--- a/Documentation/fb/modedb.txt ++++ b/Documentation/fb/modedb.txt +@@ -57,6 +57,8 @@ Options can also be passed after the mod + + Valid options are: + ++ - margin_top, margin_bottom, margin_left, margin_right (integer): ++ Number of pixels in the margins, typically to deal with overscan on TVs + - reflect_x (boolean): Perform an axial symmetry on the X axis + - reflect_y (boolean): Perform an axial symmetry on the Y axis + - rotate (integer): Rotate the initial framebuffer by x +--- a/drivers/gpu/drm/drm_modes.c ++++ b/drivers/gpu/drm/drm_modes.c +@@ -1615,6 +1615,50 @@ static int drm_mode_parse_cmdline_option + } else if (!strncmp(option, "reflect_y", delim - option)) { + rotation |= DRM_MODE_REFLECT_Y; + sep = delim; ++ } else if (!strncmp(option, "margin_right", delim - option)) { ++ const char *value = delim + 1; ++ unsigned int margin; ++ ++ margin = simple_strtol(value, &sep, 10); ++ ++ /* Make sure we have parsed something */ ++ if (sep == value) ++ return -EINVAL; ++ ++ mode->tv_margins.right = margin; ++ } else if (!strncmp(option, "margin_left", delim - option)) { ++ const char *value = delim + 1; ++ unsigned int margin; ++ ++ margin = simple_strtol(value, &sep, 10); ++ ++ /* Make sure we have parsed something */ ++ if (sep == value) ++ return -EINVAL; ++ ++ mode->tv_margins.left = margin; ++ } else if (!strncmp(option, "margin_top", delim - option)) { ++ const char *value = delim + 1; ++ unsigned int margin; ++ ++ margin = simple_strtol(value, &sep, 10); ++ ++ /* Make sure we have parsed something */ ++ if (sep == value) ++ return -EINVAL; ++ ++ mode->tv_margins.top = margin; ++ } else if (!strncmp(option, "margin_bottom", delim - option)) { ++ const char *value = delim + 1; ++ unsigned int margin; ++ ++ margin = simple_strtol(value, &sep, 10); ++ ++ /* Make sure we have parsed something */ ++ if (sep == value) ++ return -EINVAL; ++ ++ mode->tv_margins.bottom = margin; + } else { + return -EINVAL; + } +--- a/include/drm/drm_connector.h ++++ b/include/drm/drm_connector.h +@@ -886,6 +886,11 @@ struct drm_cmdline_mode { + * DRM_MODE_ROTATE_0 and DRM_MODE_ROTATE_180. + */ + unsigned int rotation_reflection; ++ ++ /** ++ * @tv_margins: TV margins to apply to the mode. ++ */ ++ struct drm_connector_tv_margins tv_margins; + }; + + /** |