2022-06-06 06:11:08

by Hsin-Yi Wang

Subject: [PATCH v3 2/8] drm/panel: boe-tv101wum-nl6: Implement .get_orientation callback

To return the orientation property to drm/kms driver.

Signed-off-by: Hsin-Yi Wang <[email protected]>
Reviewed-by: Hans de Goede <[email protected]>
---
v2->v3: add comments for notice.
---
drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
index 1be150ac758f..a9cd07234179 100644
--- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
+++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c
@@ -1511,16 +1511,30 @@ static int boe_panel_get_modes(struct drm_panel *panel,
connector->display_info.width_mm = boe->desc->size.width_mm;
connector->display_info.height_mm = boe->desc->size.height_mm;
connector->display_info.bpc = boe->desc->bpc;
+ /*
+ * drm drivers are expected to call drm_panel_get_orientation() to get
+ * panel's orientation then drm_connector_set_panel_orientation() to
+ * set the property before drm_dev_register(). Otherwise there will be
+ * a WARN_ON if orientation is set after drm is registered.
+ */
drm_connector_set_panel_orientation(connector, boe->orientation);

return 1;
}

+static enum drm_panel_orientation boe_panel_get_orientation(struct drm_panel *panel)
+{
+ struct boe_panel *boe = to_boe_panel(panel);
+
+ return boe->orientation;
+}
+
static const struct drm_panel_funcs boe_panel_funcs = {
.unprepare = boe_panel_unprepare,
.prepare = boe_panel_prepare,
.enable = boe_panel_enable,
.get_modes = boe_panel_get_modes,
+ .get_orientation = boe_panel_get_orientation,
};

static int boe_panel_add(struct boe_panel *boe)
--
2.36.1.255.ge46751e96f-goog

2022-06-06 14:35:06

by Doug Anderson

Subject: Re: [PATCH v3 2/8] drm/panel: boe-tv101wum-nl6: Implement .get_orientation callback

Hi,

On Sun, Jun 5, 2022 at 9:47 PM Hsin-Yi Wang <[email protected]> wrote:
>
> To return the orientation property to drm/kms driver.
>
> Signed-off-by: Hsin-Yi Wang <[email protected]>
> Reviewed-by: Hans de Goede <[email protected]>
> ---
> v2->v3: add comments for notice.
> ---
> drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)

Reviewed-by: Douglas Anderson <[email protected]>