summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/panel
diff options
context:
space:
mode:
authorMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2018-11-13 10:58:49 +0100
committerMaarten Lankhorst <maarten.lankhorst@linux.intel.com>2018-11-13 10:59:10 +0100
commit0ea0397a3a12f9720d6acb78a48da796a54e81aa (patch)
treee2078363019cb2fde493844d7f25293412c4b6df /drivers/gpu/drm/panel
parent913240696ec64a2af2de250b1591cc45b5cea2f6 (diff)
parent651022382c7f8da46cb4872a545ee1da6d097d2a (diff)
Merge remote-tracking branch 'drm/drm-next' into drm-misc-next
drm-next is forwarded to v4.20-rc1, and we need this to make a patch series apply. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/panel')
-rw-r--r--drivers/gpu/drm/panel/panel-simple.c29
1 files changed, 20 insertions, 9 deletions
diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index 07d576d99475..5fbee837b0db 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -56,6 +56,8 @@ struct panel_desc {
/**
* @prepare: the time (in milliseconds) that it takes for the panel to
* become ready and start receiving video data
+ * @hpd_absent_delay: Add this to the prepare delay if we know Hot
+ * Plug Detect isn't used.
* @enable: the time (in milliseconds) that it takes for the panel to
* display the first valid frame after starting to receive
* video data
@@ -66,6 +68,7 @@ struct panel_desc {
*/
struct {
unsigned int prepare;
+ unsigned int hpd_absent_delay;
unsigned int enable;
unsigned int disable;
unsigned int unprepare;
@@ -79,6 +82,7 @@ struct panel_simple {
struct drm_panel base;
bool prepared;
bool enabled;
+ bool no_hpd;
const struct panel_desc *desc;
@@ -202,6 +206,7 @@ static int panel_simple_unprepare(struct drm_panel *panel)
static int panel_simple_prepare(struct drm_panel *panel)
{
struct panel_simple *p = to_panel_simple(panel);
+ unsigned int delay;
int err;
if (p->prepared)
@@ -215,8 +220,11 @@ static int panel_simple_prepare(struct drm_panel *panel)
gpiod_set_value_cansleep(p->enable_gpio, 1);
- if (p->desc->delay.prepare)
- msleep(p->desc->delay.prepare);
+ delay = p->desc->delay.prepare;
+ if (p->no_hpd)
+ delay += p->desc->delay.hpd_absent_delay;
+ if (delay)
+ msleep(delay);
p->prepared = true;
@@ -305,6 +313,8 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc)
panel->prepared = false;
panel->desc = desc;
+ panel->no_hpd = of_property_read_bool(dev->of_node, "no-hpd");
+
panel->supply = devm_regulator_get(dev, "power");
if (IS_ERR(panel->supply))
return PTR_ERR(panel->supply);
@@ -1464,7 +1474,7 @@ static const struct panel_desc innolux_n156bge_l21 = {
},
};
-static const struct drm_display_mode innolux_tv123wam_mode = {
+static const struct drm_display_mode innolux_p120zdg_bf1_mode = {
.clock = 206016,
.hdisplay = 2160,
.hsync_start = 2160 + 48,
@@ -1478,15 +1488,16 @@ static const struct drm_display_mode innolux_tv123wam_mode = {
.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
};
-static const struct panel_desc innolux_tv123wam = {
- .modes = &innolux_tv123wam_mode,
+static const struct panel_desc innolux_p120zdg_bf1 = {
+ .modes = &innolux_p120zdg_bf1_mode,
.num_modes = 1,
.bpc = 8,
.size = {
- .width = 259,
- .height = 173,
+ .width = 254,
+ .height = 169,
},
.delay = {
+ .hpd_absent_delay = 200,
.unprepare = 500,
},
};
@@ -2588,8 +2599,8 @@ static const struct of_device_id platform_of_match[] = {
.compatible = "innolux,n156bge-l21",
.data = &innolux_n156bge_l21,
}, {
- .compatible = "innolux,tv123wam",
- .data = &innolux_tv123wam,
+ .compatible = "innolux,p120zdg-bf1",
+ .data = &innolux_p120zdg_bf1,
}, {
.compatible = "innolux,zj070na-01p",
.data = &innolux_zj070na_01p,