1 files changed, 149 insertions, 0 deletions

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vga.c b/drivers/gpu/drm/rcar-du/rcar_du_vga.c
new file mode 100644
index 000000000000..327289ec380d
--- /dev/null
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vga.c
@@ -0,0 +1,149 @@
+/*
+ * rcar_du_vga.c  --  R-Car Display Unit VGA DAC and Connector
+ *
+ * Copyright (C) 2013 Renesas Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+
+#include "rcar_du_drv.h"
+#include "rcar_du_kms.h"
+#include "rcar_du_vga.h"
+
+/* -----------------------------------------------------------------------------
+ * Connector
+ */
+
+static int rcar_du_vga_connector_get_modes(struct drm_connector *connector)
+{
+        return 0;
+}
+
+static int rcar_du_vga_connector_mode_valid(struct drm_connector *connector,
+                                            struct drm_display_mode *mode)
+{
+        return MODE_OK;
+}
+
+static const struct drm_connector_helper_funcs connector_helper_funcs = {
+        .get_modes = rcar_du_vga_connector_get_modes,
+        .mode_valid = rcar_du_vga_connector_mode_valid,
+        .best_encoder = rcar_du_connector_best_encoder,
+};
+
+static void rcar_du_vga_connector_destroy(struct drm_connector *connector)
+{
+        drm_sysfs_connector_remove(connector);
+        drm_connector_cleanup(connector);
+}
+
+static enum drm_connector_status
+rcar_du_vga_connector_detect(struct drm_connector *connector, bool force)
+{
+        return connector_status_unknown;
+}
+
+static const struct drm_connector_funcs connector_funcs = {
+        .dpms = drm_helper_connector_dpms,
+        .detect = rcar_du_vga_connector_detect,
+        .fill_modes = drm_helper_probe_single_connector_modes,
+        .destroy = rcar_du_vga_connector_destroy,
+};
+
+static int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
+                                      struct rcar_du_encoder *renc)
+{
+        struct rcar_du_connector *rcon;
+        struct drm_connector *connector;
+        int ret;
+
+        rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
+        if (rcon == NULL)
+                return -ENOMEM;
+
+        connector = &rcon->connector;
+        connector->display_info.width_mm = 0;
+        connector->display_info.height_mm = 0;
+
+        ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
+                                 DRM_MODE_CONNECTOR_VGA);
+        if (ret < 0)
+                return ret;
+
+        drm_connector_helper_add(connector, &connector_helper_funcs);
+        ret = drm_sysfs_connector_add(connector);
+        if (ret < 0)
+                return ret;
+
+        drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
+        drm_object_property_set_value(&connector->base,
+                rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
+
+        ret = drm_mode_connector_attach_encoder(connector, &renc->encoder);
+        if (ret < 0)
+                return ret;
+
+        connector->encoder = &renc->encoder;
+        rcon->encoder = renc;
+
+        return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * Encoder
+ */
+
+static void rcar_du_vga_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+}
+
+static bool rcar_du_vga_encoder_mode_fixup(struct drm_encoder *encoder,
+                                           const struct drm_display_mode *mode,
+                                           struct drm_display_mode *adjusted_mode)
+{
+        return true;
+}
+
+static const struct drm_encoder_helper_funcs encoder_helper_funcs = {
+        .dpms = rcar_du_vga_encoder_dpms,
+        .mode_fixup = rcar_du_vga_encoder_mode_fixup,
+        .prepare = rcar_du_encoder_mode_prepare,
+        .commit = rcar_du_encoder_mode_commit,
+        .mode_set = rcar_du_encoder_mode_set,
+};
+
+static const struct drm_encoder_funcs encoder_funcs = {
+        .destroy = drm_encoder_cleanup,
+};
+
+int rcar_du_vga_init(struct rcar_du_device *rcdu,
+                     const struct rcar_du_encoder_vga_data *data,
+                     unsigned int output)
+{
+        struct rcar_du_encoder *renc;
+        int ret;
+
+        renc = devm_kzalloc(rcdu->dev, sizeof(*renc), GFP_KERNEL);
+        if (renc == NULL)
+                return -ENOMEM;
+
+        renc->output = output;
+
+        ret = drm_encoder_init(rcdu->ddev, &renc->encoder, &encoder_funcs,
+                               DRM_MODE_ENCODER_DAC);
+        if (ret < 0)
+                return ret;
+
+        drm_encoder_helper_add(&renc->encoder, &encoder_helper_funcs);
+
+        return rcar_du_vga_connector_init(rcdu, renc);
+}