diff options
author | Sam Ravnborg <sam@ravnborg.org> | 2020-07-26 22:33:21 +0200 |
---|---|---|
committer | Sam Ravnborg <sam@ravnborg.org> | 2020-07-27 17:24:25 +0200 |
commit | 489ce80fa4942ba855b937eee7f621d52ccdff3f (patch) | |
tree | 558eedd35b5f4e15b64834fae65bf569ff032bd1 /drivers/gpu/drm | |
parent | a3d495ce5c0b25739b6e450d0810567819a96735 (diff) | |
download | linux-489ce80fa4942ba855b937eee7f621d52ccdff3f.tar.bz2 |
drm/bridge: megachips: add get_edid bridge operation
To prepare for a chained bridge setup add support for the
get_edid bridge operation.
There is no need for a copy of the edid - so drop
the pointer to the copy.
v2:
- Fix so we do not leak memory (Laurent)
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Peter Senna Tschudin <peter.senna@gmail.com>
Cc: Martin Donnelly <martin.donnelly@ge.com>
Cc: Martyn Welch <martyn.welch@collabora.co.uk>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200726203324.3722593-13-sam@ravnborg.org
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r-- | drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 31 |
1 files changed, 17 insertions, 14 deletions
diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c index 450dca33ea48..f7b55dc374ac 100644 --- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c +++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c @@ -61,7 +61,6 @@ struct ge_b850v3_lvds { struct drm_bridge bridge; struct i2c_client *stdp4028_i2c; struct i2c_client *stdp2690_i2c; - struct edid *edid; }; static struct ge_b850v3_lvds *ge_b850v3_lvds_ptr; @@ -131,22 +130,26 @@ err: return NULL; } -static int ge_b850v3_lvds_get_modes(struct drm_connector *connector) +static struct edid *ge_b850v3_lvds_get_edid(struct drm_bridge *bridge, + struct drm_connector *connector) { struct i2c_client *client; - int num_modes = 0; client = ge_b850v3_lvds_ptr->stdp2690_i2c; - kfree(ge_b850v3_lvds_ptr->edid); - ge_b850v3_lvds_ptr->edid = (struct edid *)stdp2690_get_edid(client); + return (struct edid *)stdp2690_get_edid(client); +} - if (ge_b850v3_lvds_ptr->edid) { - drm_connector_update_edid_property(connector, - ge_b850v3_lvds_ptr->edid); - num_modes = drm_add_edid_modes(connector, - ge_b850v3_lvds_ptr->edid); - } +static int ge_b850v3_lvds_get_modes(struct drm_connector *connector) +{ + struct edid *edid; + int num_modes; + + edid = ge_b850v3_lvds_get_edid(&ge_b850v3_lvds_ptr->bridge, connector); + + drm_connector_update_edid_property(connector, edid); + num_modes = drm_add_edid_modes(connector, edid); + kfree(edid); return num_modes; } @@ -269,6 +272,7 @@ static int ge_b850v3_lvds_attach(struct drm_bridge *bridge, static const struct drm_bridge_funcs ge_b850v3_lvds_funcs = { .attach = ge_b850v3_lvds_attach, .detect = ge_b850v3_lvds_bridge_detect, + .get_edid = ge_b850v3_lvds_get_edid, }; static int ge_b850v3_lvds_init(struct device *dev) @@ -304,8 +308,6 @@ static void ge_b850v3_lvds_remove(void) drm_bridge_remove(&ge_b850v3_lvds_ptr->bridge); - kfree(ge_b850v3_lvds_ptr->edid); - ge_b850v3_lvds_ptr = NULL; out: mutex_unlock(&ge_b850v3_lvds_dev_mutex); @@ -323,7 +325,8 @@ static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c, /* drm bridge initialization */ ge_b850v3_lvds_ptr->bridge.funcs = &ge_b850v3_lvds_funcs; - ge_b850v3_lvds_ptr->bridge.ops = DRM_BRIDGE_OP_DETECT; + ge_b850v3_lvds_ptr->bridge.ops = DRM_BRIDGE_OP_DETECT | + DRM_BRIDGE_OP_EDID; ge_b850v3_lvds_ptr->bridge.of_node = dev->of_node; drm_bridge_add(&ge_b850v3_lvds_ptr->bridge); |