From: Jose Abreu <Jose.Abreu@synopsys.com>
To: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc: "Jose Abreu" <Jose.Abreu@synopsys.com>,
"Carlos Palminha" <CARLOS.PALMINHA@synopsys.com>,
"Alexey Brodkin" <Alexey.Brodkin@synopsys.com>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
"Daniel Vetter" <daniel.vetter@ffwll.ch>,
"Dave Airlie" <airlied@linux.ie>,
"Andrzej Hajda" <a.hajda@samsung.com>,
"Archit Taneja" <architt@codeaurora.org>
Subject: [PATCH v2 6/8] drm: Introduce drm_bridge_mode_valid()
Date: Tue, 9 May 2017 18:00:13 +0100 [thread overview]
Message-ID: <c4314b22644ed311d246d5aa97b63b3be04212c6.1494347165.git.joabreu@synopsys.com> (raw)
In-Reply-To: <cover.1494347164.git.joabreu@synopsys.com>
In-Reply-To: <cover.1494347164.git.joabreu@synopsys.com>
Introduce a new helper function which calls mode_valid() callback
for all bridges in an encoder chain.
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Carlos Palminha <palminha@synopsys.com>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Airlie <airlied@linux.ie>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Archit Taneja <architt@codeaurora.org>
---
drivers/gpu/drm/drm_bridge.c | 33 +++++++++++++++++++++++++++++++++
include/drm/drm_bridge.h | 2 ++
2 files changed, 35 insertions(+)
diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c
index 86a7637..dc8cdfe 100644
--- a/drivers/gpu/drm/drm_bridge.c
+++ b/drivers/gpu/drm/drm_bridge.c
@@ -206,6 +206,39 @@ bool drm_bridge_mode_fixup(struct drm_bridge *bridge,
EXPORT_SYMBOL(drm_bridge_mode_fixup);
/**
+ * drm_bridge_mode_valid - validate the mode against all bridges in the
+ * encoder chain.
+ * @bridge: bridge control structure
+ * @mode: desired mode to be validated
+ *
+ * Calls &drm_bridge_funcs.mode_valid for all the bridges in the encoder
+ * chain, starting from the first bridge to the last. If at least one bridge
+ * does not accept the mode the function returns the error code.
+ *
+ * Note: the bridge passed should be the one closest to the encoder.
+ *
+ * RETURNS:
+ * MODE_OK on success, drm_mode_status Enum error code on failure
+ */
+enum drm_mode_status drm_bridge_mode_valid(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode)
+{
+ enum drm_mode_status ret = MODE_OK;
+
+ if (!bridge)
+ return ret;
+
+ if (bridge->funcs->mode_valid)
+ ret = bridge->funcs->mode_valid(bridge, mode);
+
+ if (ret != MODE_OK)
+ return ret;
+
+ return drm_bridge_mode_valid(bridge->next, mode);
+}
+EXPORT_SYMBOL(drm_bridge_mode_valid);
+
+/**
* drm_bridge_disable - disables all bridges in the encoder chain
* @bridge: bridge control structure
*
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index 00c6c36..8358eb3 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -233,6 +233,8 @@ int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,
bool drm_bridge_mode_fixup(struct drm_bridge *bridge,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode);
+enum drm_mode_status drm_bridge_mode_valid(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode);
void drm_bridge_disable(struct drm_bridge *bridge);
void drm_bridge_post_disable(struct drm_bridge *bridge);
void drm_bridge_mode_set(struct drm_bridge *bridge,
--
1.9.1
next prev parent reply other threads:[~2017-05-09 17:01 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-09 17:00 [PATCH v2 0/8] Introduce new mode validation callbacks Jose Abreu
2017-05-09 17:00 ` [PATCH v2 1/8] drm: Add crtc/encoder/bridge->mode_valid() callbacks Jose Abreu
2017-05-10 8:03 ` Daniel Vetter
2017-05-10 9:05 ` Jose Abreu
2017-05-12 8:24 ` Laurent Pinchart
2017-05-15 6:46 ` Daniel Vetter
2017-05-09 17:00 ` [PATCH v2 2/8] drm: Add drm_crtc_mode_valid() Jose Abreu
2017-05-10 7:59 ` Daniel Vetter
2017-05-10 8:57 ` Jose Abreu
2017-05-10 15:12 ` Daniel Vetter
2017-05-09 17:00 ` [PATCH v2 3/8] drm: Add drm_encoder_mode_valid() Jose Abreu
2017-05-09 17:00 ` [PATCH v2 4/8] drm: Add drm_connector_mode_valid() Jose Abreu
2017-05-09 17:00 ` [PATCH v2 5/8] drm: Use new mode_valid() helpers in connector probe helper Jose Abreu
2017-05-10 8:01 ` Daniel Vetter
2017-05-10 8:59 ` Jose Abreu
2017-05-12 9:35 ` Laurent Pinchart
2017-05-12 16:06 ` Jose Abreu
2017-05-14 11:04 ` Laurent Pinchart
2017-05-15 6:47 ` Daniel Vetter
2017-05-15 7:05 ` Laurent Pinchart
2017-05-16 5:11 ` Jose Abreu
2017-05-09 17:00 ` Jose Abreu [this message]
2017-05-10 13:41 ` [PATCH v2 6/8] drm: Introduce drm_bridge_mode_valid() Ville Syrjälä
2017-05-10 14:01 ` Jose Abreu
2017-05-10 14:07 ` Jose Abreu
2017-05-10 15:14 ` Daniel Vetter
2017-05-12 9:38 ` Laurent Pinchart
2017-05-12 10:50 ` Archit Taneja
2017-05-12 11:01 ` Laurent Pinchart
2017-05-15 4:18 ` Archit Taneja
2017-05-15 6:49 ` Daniel Vetter
2017-05-09 17:00 ` [PATCH v2 7/8] drm: Use mode_valid() in atomic modeset Jose Abreu
2017-05-10 16:08 ` Archit Taneja
2017-05-10 17:55 ` Daniel Vetter
2017-05-12 9:53 ` Laurent Pinchart
2017-05-15 6:50 ` Daniel Vetter
2017-05-09 17:00 ` [PATCH v2 8/8] drm: arc: Use crtc->mode_valid() callback Jose Abreu
2017-05-12 9:57 ` Laurent Pinchart
2017-05-15 1:40 ` Jose Abreu
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