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a92462d6bf
This 3 non-atomic drivers all have the same function getting the
only encoder available in the connector, also atomic drivers have
this fallback. So moving it a common place and sharing between atomic
and non-atomic drivers.
While at it I also removed the mention of
drm_atomic_helper_best_encoder() that was renamed in
commit 297e30b5d9 ("drm/atomic-helper: Unexport
drm_atomic_helper_best_encoder").
v3: moving drm_connector_get_single_encoder to drm_kms_helper module
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: dri-devel@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190913232857.389834-1-jose.souza@intel.com
147 lines
3.7 KiB
C
147 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2012 Red Hat
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* based in parts on udlfb.c:
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* Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
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* Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
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* Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
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*/
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_probe_helper.h>
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#include "udl_connector.h"
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#include "udl_drv.h"
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static int udl_get_edid_block(void *data, u8 *buf, unsigned int block,
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size_t len)
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{
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int ret, i;
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u8 *read_buff;
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struct udl_device *udl = data;
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read_buff = kmalloc(2, GFP_KERNEL);
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if (!read_buff)
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return -1;
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for (i = 0; i < len; i++) {
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int bval = (i + block * EDID_LENGTH) << 8;
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ret = usb_control_msg(udl->udev,
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usb_rcvctrlpipe(udl->udev, 0),
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(0x02), (0x80 | (0x02 << 5)), bval,
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0xA1, read_buff, 2, HZ);
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if (ret < 1) {
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DRM_ERROR("Read EDID byte %d failed err %x\n", i, ret);
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kfree(read_buff);
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return -1;
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}
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buf[i] = read_buff[1];
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}
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kfree(read_buff);
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return 0;
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}
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static int udl_get_modes(struct drm_connector *connector)
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{
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struct udl_drm_connector *udl_connector =
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container_of(connector,
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struct udl_drm_connector,
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connector);
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drm_connector_update_edid_property(connector, udl_connector->edid);
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if (udl_connector->edid)
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return drm_add_edid_modes(connector, udl_connector->edid);
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return 0;
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}
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static enum drm_mode_status udl_mode_valid(struct drm_connector *connector,
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struct drm_display_mode *mode)
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{
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struct udl_device *udl = connector->dev->dev_private;
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if (!udl->sku_pixel_limit)
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return 0;
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if (mode->vdisplay * mode->hdisplay > udl->sku_pixel_limit)
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return MODE_VIRTUAL_Y;
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return 0;
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}
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static enum drm_connector_status
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udl_detect(struct drm_connector *connector, bool force)
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{
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struct udl_device *udl = connector->dev->dev_private;
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struct udl_drm_connector *udl_connector =
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container_of(connector,
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struct udl_drm_connector,
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connector);
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/* cleanup previous edid */
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if (udl_connector->edid != NULL) {
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kfree(udl_connector->edid);
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udl_connector->edid = NULL;
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}
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udl_connector->edid = drm_do_get_edid(connector, udl_get_edid_block, udl);
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if (!udl_connector->edid)
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return connector_status_disconnected;
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return connector_status_connected;
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}
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static int udl_connector_set_property(struct drm_connector *connector,
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struct drm_property *property,
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uint64_t val)
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{
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return 0;
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}
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static void udl_connector_destroy(struct drm_connector *connector)
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{
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struct udl_drm_connector *udl_connector =
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container_of(connector,
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struct udl_drm_connector,
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connector);
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drm_connector_unregister(connector);
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drm_connector_cleanup(connector);
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kfree(udl_connector->edid);
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kfree(connector);
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}
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static const struct drm_connector_helper_funcs udl_connector_helper_funcs = {
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.get_modes = udl_get_modes,
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.mode_valid = udl_mode_valid,
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};
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static const struct drm_connector_funcs udl_connector_funcs = {
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.dpms = drm_helper_connector_dpms,
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.detect = udl_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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.destroy = udl_connector_destroy,
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.set_property = udl_connector_set_property,
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};
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int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder)
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{
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struct udl_drm_connector *udl_connector;
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struct drm_connector *connector;
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udl_connector = kzalloc(sizeof(struct udl_drm_connector), GFP_KERNEL);
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if (!udl_connector)
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return -ENOMEM;
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connector = &udl_connector->connector;
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drm_connector_init(dev, connector, &udl_connector_funcs,
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DRM_MODE_CONNECTOR_DVII);
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drm_connector_helper_add(connector, &udl_connector_helper_funcs);
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drm_connector_register(connector);
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drm_connector_attach_encoder(connector, encoder);
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connector->polled = DRM_CONNECTOR_POLL_HPD |
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DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
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return 0;
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}
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