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Subject[PATCH 2/7] drm/panel: sitronix-st7789v: add panel orientation support
Date
From: Michael Riesch <michael.riesch@wolfvision.net>

Determine the orientation of the display based on the device tree and
propagate it.

Signed-off-by: Michael Riesch <michael.riesch@wolfvision.net>
Signed-off-by: Gerald Loacker <gerald.loacker@wolfvision.net>
---
.../gpu/drm/panel/panel-sitronix-st7789v.c | 28 +++++++++++++++----
1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
index 9535437271d3..5d4542c12f44 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
@@ -117,6 +117,7 @@ struct st7789v {
struct spi_device *spi;
struct gpio_desc *reset;
struct regulator *power;
+ enum drm_panel_orientation orientation;
};

enum st7789v_prefix {
@@ -171,6 +172,7 @@ static const struct drm_display_mode default_mode = {
static int st7789v_get_modes(struct drm_panel *panel,
struct drm_connector *connector)
{
+ struct st7789v *ctx = panel_to_st7789v(panel);
struct drm_display_mode *mode;
u32 bus_format = MEDIA_BUS_FMT_RGB666_1X18;

@@ -193,9 +195,22 @@ static int st7789v_get_modes(struct drm_panel *panel,
drm_display_info_set_bus_formats(&connector->display_info, &bus_format,
1);

+ /*
+ * TODO: Remove once all drm drivers call
+ * drm_connector_set_orientation_from_panel()
+ */
+ drm_connector_set_panel_orientation(connector, ctx->orientation);
+
return 1;
}

+static enum drm_panel_orientation st7789v_get_orientation(struct drm_panel *p)
+{
+ struct st7789v *ctx = panel_to_st7789v(p);
+
+ return ctx->orientation;
+}
+
static int st7789v_prepare(struct drm_panel *panel)
{
struct st7789v *ctx = panel_to_st7789v(panel);
@@ -351,11 +366,12 @@ static int st7789v_unprepare(struct drm_panel *panel)
}

static const struct drm_panel_funcs st7789v_drm_funcs = {
- .disable = st7789v_disable,
- .enable = st7789v_enable,
- .get_modes = st7789v_get_modes,
- .prepare = st7789v_prepare,
- .unprepare = st7789v_unprepare,
+ .disable = st7789v_disable,
+ .enable = st7789v_enable,
+ .get_modes = st7789v_get_modes,
+ .get_orientation = st7789v_get_orientation,
+ .prepare = st7789v_prepare,
+ .unprepare = st7789v_unprepare,
};

static int st7789v_probe(struct spi_device *spi)
@@ -387,6 +403,8 @@ static int st7789v_probe(struct spi_device *spi)
if (ret)
return ret;

+ of_drm_get_panel_orientation(spi->dev.of_node, &ctx->orientation);
+
drm_panel_add(&ctx->panel);

return 0;
--
2.37.2
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