mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
c555f02371
Just makes it longer, and for most things in drm_connector.[hc] we just use the drm_connector_ prefix. Done with sed + a bit of manual fixup for the indenting. Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180709084016.23750-6-daniel.vetter@ffwll.ch
75 lines
1.7 KiB
C
75 lines
1.7 KiB
C
/*
|
|
* Copyright (c) 2007 Intel Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
* Authers: Jesse Barnes <jesse.barnes@intel.com>
|
|
*/
|
|
|
|
#include <linux/i2c.h>
|
|
#include <drm/drmP.h>
|
|
#include "psb_intel_drv.h"
|
|
|
|
/**
|
|
* psb_intel_ddc_probe
|
|
*
|
|
*/
|
|
bool psb_intel_ddc_probe(struct i2c_adapter *adapter)
|
|
{
|
|
u8 out_buf[] = { 0x0, 0x0 };
|
|
u8 buf[2];
|
|
int ret;
|
|
struct i2c_msg msgs[] = {
|
|
{
|
|
.addr = 0x50,
|
|
.flags = 0,
|
|
.len = 1,
|
|
.buf = out_buf,
|
|
},
|
|
{
|
|
.addr = 0x50,
|
|
.flags = I2C_M_RD,
|
|
.len = 1,
|
|
.buf = buf,
|
|
}
|
|
};
|
|
|
|
ret = i2c_transfer(adapter, msgs, 2);
|
|
if (ret == 2)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* psb_intel_ddc_get_modes - get modelist from monitor
|
|
* @connector: DRM connector device to use
|
|
*
|
|
* Fetch the EDID information from @connector using the DDC bus.
|
|
*/
|
|
int psb_intel_ddc_get_modes(struct drm_connector *connector,
|
|
struct i2c_adapter *adapter)
|
|
{
|
|
struct edid *edid;
|
|
int ret = 0;
|
|
|
|
edid = drm_get_edid(connector, adapter);
|
|
if (edid) {
|
|
drm_connector_update_edid_property(connector, edid);
|
|
ret = drm_add_edid_modes(connector, edid);
|
|
kfree(edid);
|
|
}
|
|
return ret;
|
|
}
|