On Wed, May 16, 2018 at 12:20 AM, Jagan Teki jagan@amarulasolutions.com wrote:
On Wed, May 16, 2018 at 12:12 PM, Chen-Yu Tsai wens@csie.org wrote:
On Mon, May 14, 2018 at 11:03 AM, Jagan Teki jagan@amarulasolutions.com wrote:
On Thu, Apr 19, 2018 at 3:02 PM, Chen-Yu Tsai wens@csie.org wrote:
This panel is marketed as Banana Pi 7" LCD display. On the back is a sticker denoting the model name S070WV20-CT16.
This is a 7" 800x480 panel connected through a 24-bit RGB interface. However the panel only does 262k colors.
Signed-off-by: Chen-Yu Tsai wens@csie.org
.../display/panel/bananapi,s070wv20-ct16.txt | 7 ++++++ drivers/gpu/drm/panel/panel-simple.c | 25 +++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16.txt
diff --git a/Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16.txt b/Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16.txt new file mode 100644 index 000000000000..2ec35ce36e9a --- /dev/null +++ b/Documentation/devicetree/bindings/display/panel/bananapi,s070wv20-ct16.txt @@ -0,0 +1,7 @@ +Banana Pi 7" (S070WV20-CT16) TFT LCD Panel
+Required properties: +- compatible: should be "bananapi,s070wv20-ct16"
+This binding is compatible with the simple-panel binding, which is specified +in simple-panel.txt in this directory. diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index cbf1ab404ee7..9bc037f74d6c 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -745,6 +745,28 @@ static const struct panel_desc avic_tm070ddh03 = { }, };
+static const struct drm_display_mode bananapi_s070wv20_ct16_mode = {
.clock = 30000,.hdisplay = 800,.hsync_start = 800 + 40,.hsync_end = 800 + 40 + 48,.htotal = 800 + 40 + 48 + 40,.vdisplay = 480,.vsync_start = 480 + 13,.vsync_end = 480 + 13 + 3,.vtotal = 480 + 13 + 3 + 29,+};
+static const struct panel_desc bananapi_s070wv20_ct16 = {
.modes = &bananapi_s070wv20_ct16_mode,.num_modes = 1,.bpc = 6,.size = {.width = 154,.height = 86,},+};
I think this parallel RGB interface right? I too have same display with DSI I'm sure these setting will not useful right? do we need to write separate panel driver for that?
AFAIK the DSI model is an RGB panel with a MIPI DSI bridge on the connector board. The model I have is dual interface.
Yes, this is what I have [1] where same strip can use for both RGB and MIPI DSI. can bananapi,s070wv20-ct16 work for DSI interface as well?
In theory yes. You can use RGB with Banana Pi M1+ and DSI with Banana Pi M3. However, DSI on A83T is not supported yet, and I don't intend to spend my time writing a driver for the MIPI DSI bridge on that panel. The bridge IC is the one on top of the DSI FPC connector.
ChenYu
[1] https://www.aliexpress.com/item/New-Arrival-Banana-Pro-Pi-7-inch-LCD-Display...
Jagan.