Re: [PATCH RESEND] display: panel: Add KOE tx14d24vm1bpa display support (320x240)

From: Lukasz Majewski
Date: Sat May 19 2018 - 06:11:05 EST


Hi Thierry,

> This commit adds support for KOE's 5.7" display.
>

Thierry, shall I perform some more work on this code, or is it
eligible for applying to your tree?

Best regards,
Åukasz

> Signed-off-by: Lukasz Majewski <lukma@xxxxxxx>
> ---
> .../bindings/display/panel/koe,tx14d24vm1bpa.txt | 42
> ++++++++++++++++++++++
> drivers/gpu/drm/panel/panel-simple.c | 26
> ++++++++++++++ 2 files changed, 68 insertions(+) create mode 100644
> Documentation/devicetree/bindings/display/panel/koe,tx14d24vm1bpa.txt
>
> diff --git
> a/Documentation/devicetree/bindings/display/panel/koe,tx14d24vm1bpa.txt
> b/Documentation/devicetree/bindings/display/panel/koe,tx14d24vm1bpa.txt
> new file mode 100644 index 000000000000..be7ac666807b --- /dev/null
> +++
> b/Documentation/devicetree/bindings/display/panel/koe,tx14d24vm1bpa.txt
> @@ -0,0 +1,42 @@ +Kaohsiung Opto-Electronics Inc. 5.7" QVGA (320 x
> 240) TFT LCD panel +
> +Required properties:
> +- compatible: should be "koe,tx14d24vm1bpa"
> +- backlight: phandle of the backlight device attached to the panel
> +- power-supply: single regulator to provide the supply voltage
> +
> +Required nodes:
> +- port: Parallel port mapping to connect this display
> +
> +This panel needs single power supply voltage. Its backlight is
> conntrolled +via PWM signal.
> +
> +Example:
> +--------
> +
> +Example device-tree definition when connected to iMX53 based board
> +
> + lcd_panel: lcd-panel {
> + compatible = "koe,tx14d24vm1bpa";
> + backlight = <&backlight_lcd>;
> + power-supply = <&reg_3v3>;
> +
> + port {
> + lcd_panel_in: endpoint {
> + remote-endpoint = <&lcd_display_out>;
> + };
> + };
> + };
> +
> +Then one needs to extend the dispX node:
> +
> + lcd_display: disp1 {
> +
> + port@1 {
> + reg = <1>;
> +
> + lcd_display_out: endpoint {
> + remote-endpoint = <&lcd_panel_in>;
> + };
> + };
> + };
> diff --git a/drivers/gpu/drm/panel/panel-simple.c
> b/drivers/gpu/drm/panel/panel-simple.c index
> d9984bdb5bb5..103b43ce7dee 100644 ---
> a/drivers/gpu/drm/panel/panel-simple.c +++
> b/drivers/gpu/drm/panel/panel-simple.c @@ -1268,6 +1268,29 @@ static
> const struct panel_desc innolux_zj070na_01p = { },
> };
>
> +static const struct display_timing koe_tx14d24vm1bpa_timing = {
> + .pixelclock = { 5580000, 5850000, 6200000 },
> + .hactive = { 320, 320, 320 },
> + .hfront_porch = { 30, 30, 30 },
> + .hback_porch = { 30, 30, 30 },
> + .hsync_len = { 1, 5, 17 },
> + .vactive = { 240, 240, 240 },
> + .vfront_porch = { 6, 6, 6 },
> + .vback_porch = { 5, 5, 5 },
> + .vsync_len = { 1, 2, 11 },
> + .flags = DISPLAY_FLAGS_DE_HIGH,
> +};
> +
> +static const struct panel_desc koe_tx14d24vm1bpa = {
> + .timings = &koe_tx14d24vm1bpa_timing,
> + .num_timings = 1,
> + .bpc = 6,
> + .size = {
> + .width = 115,
> + .height = 86,
> + },
> +};
> +
> static const struct display_timing koe_tx31d200vm0baa_timing = {
> .pixelclock = { 39600000, 43200000, 48000000 },
> .hactive = { 1280, 1280, 1280 },
> @@ -2204,6 +2227,9 @@ static const struct of_device_id
> platform_of_match[] = { .compatible = "innolux,zj070na-01p",
> .data = &innolux_zj070na_01p,
> }, {
> + .compatible = "koe,tx14d24vm1bpa",
> + .data = &koe_tx14d24vm1bpa,
> + }, {
> .compatible = "koe,tx31d200vm0baa",
> .data = &koe_tx31d200vm0baa,
> }, {


Best regards,

Lukasz Majewski

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