evie/android_kernel_oneplus_msm8998
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mdss: display-port: add new sysfs node for 3D mode

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Add sysfs node to provide the status of display-port's 3D
mode support. Framework will query about the interface for
3D mode status before enabling the corresponding
FrameBuffer.

Change-Id: If53a034c3c5ee39a95b2501ee495e572f60d6b56
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
This commit is contained in:
Chandan Uddaraju 2016-08-31 10:22:03 -07:00
parent ab26d09879
commit 70fb619af4
2 changed files with 45 additions and 0 deletions
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44
drivers/video/fbdev/msm/mdss_dp.c
View file

@ -1434,10 +1434,54 @@ static ssize_t mdss_dp_rda_connected(struct device *dev,
return ret;
}
static ssize_t mdss_dp_sysfs_wta_s3d_mode(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int ret, s3d_mode;
struct mdss_dp_drv_pdata *dp = mdss_dp_get_drvdata(dev);
if (!dp) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
ret = kstrtoint(buf, 10, &s3d_mode);
if (ret) {
DEV_ERR("%s: kstrtoint failed. rc=%d\n", __func__, ret);
goto end;
}
dp->s3d_mode = s3d_mode;
ret = strnlen(buf, PAGE_SIZE);
DEV_DBG("%s: %d\n", __func__, dp->s3d_mode);
end:
return ret;
}
static ssize_t mdss_dp_sysfs_rda_s3d_mode(struct device *dev,
struct device_attribute *attr, char *buf)
{
ssize_t ret;
struct mdss_dp_drv_pdata *dp = mdss_dp_get_drvdata(dev);
if (!dp) {
DEV_ERR("%s: invalid input\n", __func__);
return -EINVAL;
}
ret = snprintf(buf, PAGE_SIZE, "%d\n", dp->s3d_mode);
DEV_DBG("%s: '%d'\n", __func__, dp->s3d_mode);
return ret;
}
static DEVICE_ATTR(connected, S_IRUGO, mdss_dp_rda_connected, NULL);
static DEVICE_ATTR(s3d_mode, S_IRUGO | S_IWUSR, mdss_dp_sysfs_rda_s3d_mode,
mdss_dp_sysfs_wta_s3d_mode);
static struct attribute *mdss_dp_fs_attrs[] = {
&dev_attr_connected.attr,
&dev_attr_s3d_mode.attr,
NULL,
};

1
drivers/video/fbdev/msm/mdss_dp.h
View file

@ -404,6 +404,7 @@ struct mdss_dp_drv_pdata {
struct mutex pd_msg_mutex;
struct mutex hdcp_mutex;
bool cable_connected;
u32 s3d_mode;
u32 aux_cmd_busy;
u32 aux_cmd_i2c;
int aux_trans_num;