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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/gpu/drm/armada/armada_output.c
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/gpu/drm/armada/armada_output.c')
-rw-r--r--kernel/drivers/gpu/drm/armada/armada_output.c158
1 files changed, 158 insertions, 0 deletions
diff --git a/kernel/drivers/gpu/drm/armada/armada_output.c b/kernel/drivers/gpu/drm/armada/armada_output.c
new file mode 100644
index 000000000..abbc309fe
--- /dev/null
+++ b/kernel/drivers/gpu/drm/armada/armada_output.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2012 Russell King
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <drm/drmP.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_encoder_slave.h>
+#include "armada_output.h"
+#include "armada_drm.h"
+
+struct armada_connector {
+ struct drm_connector conn;
+ const struct armada_output_type *type;
+};
+
+#define drm_to_armada_conn(c) container_of(c, struct armada_connector, conn)
+
+struct drm_encoder *armada_drm_connector_encoder(struct drm_connector *conn)
+{
+ struct drm_encoder *enc = conn->encoder;
+
+ return enc ? enc : drm_encoder_find(conn->dev, conn->encoder_ids[0]);
+}
+
+static enum drm_connector_status armada_drm_connector_detect(
+ struct drm_connector *conn, bool force)
+{
+ struct armada_connector *dconn = drm_to_armada_conn(conn);
+ enum drm_connector_status status = connector_status_disconnected;
+
+ if (dconn->type->detect) {
+ status = dconn->type->detect(conn, force);
+ } else {
+ struct drm_encoder *enc = armada_drm_connector_encoder(conn);
+
+ if (enc)
+ status = encoder_helper_funcs(enc)->detect(enc, conn);
+ }
+
+ return status;
+}
+
+static void armada_drm_connector_destroy(struct drm_connector *conn)
+{
+ struct armada_connector *dconn = drm_to_armada_conn(conn);
+
+ drm_connector_unregister(conn);
+ drm_connector_cleanup(conn);
+ kfree(dconn);
+}
+
+static int armada_drm_connector_set_property(struct drm_connector *conn,
+ struct drm_property *property, uint64_t value)
+{
+ struct armada_connector *dconn = drm_to_armada_conn(conn);
+
+ if (!dconn->type->set_property)
+ return -EINVAL;
+
+ return dconn->type->set_property(conn, property, value);
+}
+
+static const struct drm_connector_funcs armada_drm_conn_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .detect = armada_drm_connector_detect,
+ .destroy = armada_drm_connector_destroy,
+ .set_property = armada_drm_connector_set_property,
+};
+
+void armada_drm_encoder_prepare(struct drm_encoder *encoder)
+{
+ encoder_helper_funcs(encoder)->dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+void armada_drm_encoder_commit(struct drm_encoder *encoder)
+{
+ encoder_helper_funcs(encoder)->dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+bool armada_drm_encoder_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode, struct drm_display_mode *adjusted)
+{
+ return true;
+}
+
+/* Shouldn't this be a generic helper function? */
+int armada_drm_slave_encoder_mode_valid(struct drm_connector *conn,
+ struct drm_display_mode *mode)
+{
+ struct drm_encoder *encoder = armada_drm_connector_encoder(conn);
+ int valid = MODE_BAD;
+
+ if (encoder) {
+ struct drm_encoder_slave *slave = to_encoder_slave(encoder);
+
+ valid = slave->slave_funcs->mode_valid(encoder, mode);
+ }
+ return valid;
+}
+
+int armada_drm_slave_encoder_set_property(struct drm_connector *conn,
+ struct drm_property *property, uint64_t value)
+{
+ struct drm_encoder *encoder = armada_drm_connector_encoder(conn);
+ int rc = -EINVAL;
+
+ if (encoder) {
+ struct drm_encoder_slave *slave = to_encoder_slave(encoder);
+
+ rc = slave->slave_funcs->set_property(encoder, conn, property,
+ value);
+ }
+ return rc;
+}
+
+int armada_output_create(struct drm_device *dev,
+ const struct armada_output_type *type, const void *data)
+{
+ struct armada_connector *dconn;
+ int ret;
+
+ dconn = kzalloc(sizeof(*dconn), GFP_KERNEL);
+ if (!dconn)
+ return -ENOMEM;
+
+ dconn->type = type;
+
+ ret = drm_connector_init(dev, &dconn->conn, &armada_drm_conn_funcs,
+ type->connector_type);
+ if (ret) {
+ DRM_ERROR("unable to init connector\n");
+ goto err_destroy_dconn;
+ }
+
+ ret = type->create(&dconn->conn, data);
+ if (ret)
+ goto err_conn;
+
+ ret = drm_connector_register(&dconn->conn);
+ if (ret)
+ goto err_sysfs;
+
+ return 0;
+
+ err_sysfs:
+ if (dconn->conn.encoder)
+ dconn->conn.encoder->funcs->destroy(dconn->conn.encoder);
+ err_conn:
+ drm_connector_cleanup(&dconn->conn);
+ err_destroy_dconn:
+ kfree(dconn);
+ return ret;
+}