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From 7c0f4f4d81958f63abf696e71b342e8b75a6e530 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@bootlin.com>
Date: Wed, 19 Jun 2019 12:17:48 +0200
Subject: [PATCH] drm/connector: Add documentation for drm_cmdline_mode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
commit 772cd52c5574b04b00a97d638b2cfe94c0c1a9b6 upstream.
The struct drm_cmdline_mode holds the result of the command line parsers.
However, it wasn't documented so far, so let's do that.
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://patchwork.freedesktop.org/patch/msgid/963c893c16c6a25fc469b53c726f493d99bdc578.1560783090.git-series.maxime.ripard@bootlin.com
---
include/drm/drm_connector.h | 86 ++++++++++++++++++++++++++++++++++++-
1 file changed, 84 insertions(+), 2 deletions(-)
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -755,18 +755,100 @@ struct drm_connector_funcs {
const struct drm_connector_state *state);
};
-/* mode specified on the command line */
+/**
+ * struct drm_cmdline_mode - DRM Mode passed through the kernel command-line
+ *
+ * Each connector can have an initial mode with additional options
+ * passed through the kernel command line. This structure allows to
+ * express those parameters and will be filled by the command-line
+ * parser.
+ */
struct drm_cmdline_mode {
+ /**
+ * @specified:
+ *
+ * Has a mode been read from the command-line?
+ */
bool specified;
+
+ /**
+ * @refresh_specified:
+ *
+ * Did the mode have a preferred refresh rate?
+ */
bool refresh_specified;
+
+ /**
+ * @bpp_specified:
+ *
+ * Did the mode have a preferred BPP?
+ */
bool bpp_specified;
- int xres, yres;
+
+ /**
+ * @xres:
+ *
+ * Active resolution on the X axis, in pixels.
+ */
+ int xres;
+
+ /**
+ * @yres:
+ *
+ * Active resolution on the Y axis, in pixels.
+ */
+ int yres;
+
+ /**
+ * @bpp:
+ *
+ * Bits per pixels for the mode.
+ */
int bpp;
+
+ /**
+ * @refresh:
+ *
+ * Refresh rate, in Hertz.
+ */
int refresh;
+
+ /**
+ * @rb:
+ *
+ * Do we need to use reduced blanking?
+ */
bool rb;
+
+ /**
+ * @interlace:
+ *
+ * The mode is interlaced.
+ */
bool interlace;
+
+ /**
+ * @cvt:
+ *
+ * The timings will be calculated using the VESA Coordinated
+ * Video Timings instead of looking up the mode from a table.
+ */
bool cvt;
+
+ /**
+ * @margins:
+ *
+ * Add margins to the mode calculation (1.8% of xres rounded
+ * down to 8 pixels and 1.8% of yres).
+ */
bool margins;
+
+ /**
+ * @force:
+ *
+ * Ignore the hotplug state of the connector, and force its
+ * state to one of the DRM_FORCE_* values.
+ */
enum drm_connector_force force;
};
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