evie/android_kernel_oneplus_msm8998
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drm/msm: enable hpd event support for hdmi display

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When HPD is enabled in DTSI for HDMI display, driver needs to poll
the HPD status change and report event back to user space.

Change-Id: I6dd2f3078875698ff8cfd7bdb7cfd662e85eec9b
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
This commit is contained in:
Abhinav Kumar 2017-02-13 14:23:10 -08:00
parent 776bf6f2f0
commit 08c7eadeec
3 changed files with 18 additions and 7 deletions
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13
drivers/gpu/drm/msm/hdmi-staging/sde_hdmi.c
View file

@ -400,7 +400,7 @@ static void _sde_hdmi_connector_irq(struct sde_hdmi *sde_hdmi)
if ((hpd_int_ctrl & HDMI_HPD_INT_CTRL_INT_EN) &&
(hpd_int_status & HDMI_HPD_INT_STATUS_INT)) {
bool detected = !!(hpd_int_status &
sde_hdmi->connected = !!(hpd_int_status &
HDMI_HPD_INT_STATUS_CABLE_DETECTED);
/* ack & disable (temporarily) HPD events: */
@ -412,7 +412,7 @@ static void _sde_hdmi_connector_irq(struct sde_hdmi *sde_hdmi)
/* detect disconnect if we are connected or visa versa: */
hpd_int_ctrl = HDMI_HPD_INT_CTRL_INT_EN;
if (!detected)
if (!sde_hdmi->connected)
hpd_int_ctrl |= HDMI_HPD_INT_CTRL_INT_CONNECT;
hdmi_write(hdmi, REG_HDMI_HPD_INT_CTRL, hpd_int_ctrl);
@ -451,6 +451,7 @@ int sde_hdmi_get_info(struct msm_display_info *info,
{
int rc = 0;
struct sde_hdmi *hdmi_display = (struct sde_hdmi *)display;
struct hdmi *hdmi = hdmi_display->ctrl.ctrl;
if (!display || !info) {
SDE_ERROR("display=%p or info=%p is NULL\n", display, info);
@ -463,11 +464,15 @@ int sde_hdmi_get_info(struct msm_display_info *info,
info->num_of_h_tiles = 1;
info->h_tile_instance[0] = 0;
info->is_connected = true;
if (hdmi_display->non_pluggable)
if (hdmi_display->non_pluggable) {
info->capabilities = MSM_DISPLAY_CAP_VID_MODE;
else
hdmi_display->connected = true;
hdmi->hdmi_mode = true;
} else {
info->capabilities = MSM_DISPLAY_CAP_HOT_PLUG |
MSM_DISPLAY_CAP_EDID | MSM_DISPLAY_CAP_VID_MODE;
}
info->is_connected = hdmi_display->connected;
info->max_width = 1920;
info->max_height = 1080;
info->compression = MSM_DISPLAY_COMPRESS_NONE;

2
drivers/gpu/drm/msm/hdmi-staging/sde_hdmi.h
View file

@ -71,6 +71,7 @@ struct sde_hdmi_ctrl {
* @non_pluggable: If HDMI display is non pluggable
* @num_of_modes: Number of modes supported by display if non pluggable.
* @mode_list: Mode list if non pluggable.
* @connected: If HDMI display is connected.
* @is_tpg_enabled: TPG state.
* @hpd_work: HPD work structure.
* @root: Debug fs root entry.
@ -89,6 +90,7 @@ struct sde_hdmi {
bool non_pluggable;
u32 num_of_modes;
struct list_head mode_list;
bool connected;
bool is_tpg_enabled;
struct work_struct hpd_work;

10
drivers/gpu/drm/msm/sde/sde_kms.c
View file

@ -599,11 +599,12 @@ static int _sde_kms_setup_displays(struct drm_device *dev,
.mode_valid = sde_hdmi_mode_valid,
.get_info = sde_hdmi_get_info,
};
struct msm_display_info info;
struct msm_display_info info = {0};
struct drm_encoder *encoder;
void *display, *connector;
int i, max_encoders;
int rc = 0;
int connector_poll;
if (!dev || !priv || !sde_kms) {
SDE_ERROR("invalid argument(s)\n");
@ -720,7 +721,10 @@ static int _sde_kms_setup_displays(struct drm_device *dev,
SDE_ERROR("hdmi get_info %d failed\n", i);
continue;
}
if (info.capabilities & MSM_DISPLAY_CAP_HOT_PLUG)
connector_poll = DRM_CONNECTOR_POLL_HPD;
else
connector_poll = 0;
encoder = sde_encoder_init(dev, &info);
if (IS_ERR_OR_NULL(encoder)) {
SDE_ERROR("encoder init failed for hdmi %d\n", i);
@ -739,7 +743,7 @@ static int _sde_kms_setup_displays(struct drm_device *dev,
0,
display,
&hdmi_ops,
DRM_CONNECTOR_POLL_HPD,
connector_poll,
DRM_MODE_CONNECTOR_HDMIA);
if (connector) {
priv->encoders[priv->num_encoders++] = encoder;