Other Parts Discussed in Thread: AM62P, AM625
Tool/software:
Hi Team,
We have custom board with OLDI port 0 output for Display 800x480 .
when i use 800x480 timing i get half display . Height seems fine . Width has issues
static const struct drm_display_mode custom_mode = {
.clock = 24750,
.hdisplay = 800,
.hsync_start = 800 + 54,
.hsync_end = 800 + 54 + 2,
.htotal = 800 + 54 + 2 + 44,
.vdisplay = 480,
.vsync_start = 480 + 49,
.vsync_end = 480 + 49 + 2,
.vtotal = 480 + 49 + 2 + 22,
};
static const struct panel_desc custom = {
.modes = &custom_mode,
.num_modes = 1,
.bpc = 8,
.size = {
.width = 152,
.height = 91,
},
.delay = {
.prepare = 50,
.disable = 50,
},
.bus_flags = DRM_BUS_FLAG_DE_HIGH,
.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
.connector_type = DRM_MODE_CONNECTOR_LVDS,
};but when i use 1600x480 , it display full 800x480 but Unfortunately modetest get 1600x480 so, the GUI we did for 800x480 is collapsed.
static const struct drm_display_mode custom_mode = {
.clock = 49500,
.hdisplay = 1600,
.hsync_start = 1600 + 54,
.hsync_end = 1600 + 54 + 2,
.htotal = 1600 + 54 + 2 + 44,
.vdisplay = 480,
.vsync_start = 480 + 49,
.vsync_end = 480 + 49 + 2,
.vtotal = 480 + 49 + 2 + 22,
};
static const struct panel_desc custom = {
.modes = &custom_mode,
.num_modes = 1,
.bpc = 8,
.size = {
.width = 152,
.height = 91,
},
.delay = {
.prepare = 50,
.disable = 50,
},
.bus_flags = DRM_BUS_FLAG_DE_HIGH,
.bus_format = MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
.connector_type = DRM_MODE_CONNECTOR_LVDS,
};
any idea why its happening?
this is the overlay we use FYR
// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/**
* Microtips integrated OLDI panel (MF-101HIEBCAF0) and touch DT overlay for AM625 - SK
*
* Copyright (C) 2024 Texas Instruments Incorporated - http://www.ti.com/
*/
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
#include "k3-pinctrl.h"
&{/} {
display {
compatible ="custom";
port@0 {
dual-lvds-odd-pixels;
lcd_in0: endpoint {
remote-endpoint = <&oldi_out0>;
};
};
};
hdmi0: connector {
status = "disabled";
};
};
&dss {
status = "okay";
};
&main_pmx0 {
main_oldi0_pins_default: main-oldi0-pins-default {
pinctrl-single,pins = <
AM62X_IOPAD(0x0260, PIN_OUTPUT, 0) /* (AA5) OLDI0_A0N */
AM62X_IOPAD(0x025c, PIN_OUTPUT, 0) /* (Y6) OLDI0_A0P */
AM62X_IOPAD(0x0268, PIN_OUTPUT, 0) /* (AD3) OLDI0_A1N */
AM62X_IOPAD(0x0264, PIN_OUTPUT, 0) /* (AB4) OLDI0_A1P */
AM62X_IOPAD(0x0270, PIN_OUTPUT, 0) /* (Y8) OLDI0_A2N */
AM62X_IOPAD(0x026c, PIN_OUTPUT, 0) /* (AA8) OLDI0_A2P */
AM62X_IOPAD(0x0278, PIN_OUTPUT, 0) /* (AB6) OLDI0_A3N */
AM62X_IOPAD(0x0274, PIN_OUTPUT, 0) /* (AA7) OLDI0_A3P */
AM62X_IOPAD(0x0280, PIN_OUTPUT, 0) /* (AC6) OLDI0_A4N */
AM62X_IOPAD(0x027c, PIN_OUTPUT, 0) /* (AC5) OLDI0_A4P */
AM62X_IOPAD(0x0288, PIN_OUTPUT, 0) /* (AE5) OLDI0_A5N */
AM62X_IOPAD(0x0284, PIN_OUTPUT, 0) /* (AD6) OLDI0_A5P */
AM62X_IOPAD(0x0290, PIN_OUTPUT, 0) /* (AE6) OLDI0_A6N */
AM62X_IOPAD(0x028c, PIN_OUTPUT, 0) /* (AD7) OLDI0_A6P */
AM62X_IOPAD(0x0298, PIN_OUTPUT, 0) /* (AD8) OLDI0_A7N */
AM62X_IOPAD(0x0294, PIN_OUTPUT, 0) /* (AE7) OLDI0_A7P */
AM62X_IOPAD(0x02a0, PIN_OUTPUT, 0) /* (AD4) OLDI0_CLK0N */
AM62X_IOPAD(0x029c, PIN_OUTPUT, 0) /* (AE3) OLDI0_CLK0P */
AM62X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (AE4) OLDI0_CLK1N */
AM62X_IOPAD(0x02a4, PIN_OUTPUT, 0) /* (AD5) OLDI0_CLK1P */
>;
};
};
&dss {
pinctrl-names = "default";
pinctrl-0 = <&main_oldi0_pins_default &main_dss0_pins_default>;
};
&dss_ports {
#address-cells = <1>;
#size-cells = <0>;
/* VP1: Output to OLDI */
port@0 {
reg = <0>;
oldi_out0: endpoint {
remote-endpoint = <&lcd_in0>;
};
};
port@1 {
status = "disabled";
};
};
&main_i2c1 {
sii9022: sii9022@3b {
status = "disabled";
};
};
