Re: [PATCH 1/2] drm/panel: sitronix-st7789v: add panel orientation support

From: Neil Armstrong
Date: Wed Aug 02 2023 - 08:40:24 EST


On 18/07/2023 17:12, Michael Riesch wrote:
Determine the orientation of the display based on the device tree and
propagate it.

While at it, fix the indentation in the struct drm_panel_funcs.

Signed-off-by: Michael Riesch <michael.riesch@xxxxxxxxxxxxxx>
---
drivers/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 bbc4569cbcdc..6575f07d49e3 100644
--- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
+++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c
@@ -116,6 +116,7 @@ struct st7789v {
struct spi_device *spi;
struct gpio_desc *reset;
struct regulator *power;
+ enum drm_panel_orientation orientation;
};
enum st7789v_prefix {
@@ -170,6 +171,7 @@ 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;
mode = drm_mode_duplicate(connector->dev, &default_mode);
@@ -188,9 +190,22 @@ static int st7789v_get_modes(struct drm_panel *panel,
connector->display_info.width_mm = 61;
connector->display_info.height_mm = 103;
+ /*
+ * 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);
@@ -346,11 +361,12 @@ 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,

Changing the indentation of the whole block is a spurious change,
either change it in a separate patch or use the current indentation style...

};
static int st7789v_probe(struct spi_device *spi)
@@ -382,6 +398,8 @@ 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;


With this changed:

Reviewed-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>

Thanks,
Neil