Difference between revisions of "DESK-MX6-L/Pheripherals/HDMI"
m (U0009 moved page AXEL Lite SOM/DESK-MX6-L/Pheripherals/HDMI to DESK-MX6-L/Pheripherals/HDMI: modifica gestione DESK come prodotto a se stante) |
(HDMI section update for DESK-MX6-L release) |
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| − | <section begin=History/> | + | <section begin="History" /> |
{| style="border-collapse:collapse; " | {| style="border-collapse:collapse; " | ||
| − | !colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History | + | ! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History |
|- | |- | ||
| − | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Version | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Version |
| − | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Issue Date | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Issue Date |
| − | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white" |Notes |
|- | |- | ||
| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|1.0.0 | + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |1.0.0 |
| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Oct 2020 | + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |Oct 2020 |
| − | |style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|First DESK release | + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |First DESK release |
| + | |- | ||
| + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |3.0.0 | ||
| + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |Feb 2022 | ||
| + | | style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000" |3.0.0 DESK release | ||
|- | |- | ||
|- | |- | ||
|} | |} | ||
| − | <section end=History/> | + | <section end="History" /> |
| − | <section begin=Body/> | + | <section begin="Body" /> |
==Peripheral HDMI == | ==Peripheral HDMI == | ||
| Line 68: | Line 72: | ||
===Accessing the peripheral=== | ===Accessing the peripheral=== | ||
| − | For enabling the HDMI device, it is required to instantiate its framebuffer with the related configuration, for example, with a ''1920x1080p60'' display: | + | For enabling the HDMI device, it is required to instantiate its framebuffer with the related configuration and changing the display ID of hdmi_core, for example, with a ''1920x1080p60'' display: |
<pre> | <pre> | ||
| Line 79: | Line 83: | ||
status = "okay"; | status = "okay"; | ||
} | } | ||
| + | |||
| + | &hdmi_core { | ||
| + | ipu_id = <0>; | ||
| + | disp_id = <1>; | ||
| + | status = "okay"; | ||
| + | }; | ||
</pre> | </pre> | ||
| Line 86: | Line 96: | ||
... | ... | ||
... | ... | ||
| − | [ | + | [ 4.204455] mxc_hdmi 20e0000.hdmi_video: supply HDMI not found, using dummy regulator |
| + | [ 4.517283] mxc_hdmi 20e0000.hdmi_video: Detected HDMI controller 0x13:0x1a:0xa0:0xc1 | ||
... | ... | ||
... | ... | ||
| − | [ | + | [ 4.525268] mxc_sdc_fb fb@2: registered mxc display driver hdmi |
... | ... | ||
... | ... | ||
| − | |||
</pre> | </pre> | ||
| Line 101: | Line 111: | ||
<pre class="workstation-terminal"> | <pre class="workstation-terminal"> | ||
| − | root@desk-mx6:~# fbset -fb /dev/fb2 | + | root@desk-mx6:~# fbset -fb /dev/fb2 |
mode "1920x1080-60" | mode "1920x1080-60" | ||
| Line 111: | Line 121: | ||
rgba 8/16,8/8,8/0,8/24 | rgba 8/16,8/8,8/0,8/24 | ||
endmode | endmode | ||
| − | |||
| − | |||
</pre> | </pre> | ||
Revision as of 16:36, 27 February 2022
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| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Oct 2020 | First DESK release | |
| 3.0.0 | Feb 2022 | 3.0.0 DESK release | |
Contents
Peripheral HDMI[edit | edit source]
Device tree configuration[edit | edit source]
Here below an example of device tree configuration used on standard DAVE's kit for the AXELLite SOM:
From imx6qdl-sbcx-revb-common.dtsi:
hdmi_edid: edid@50 {
compatible = "fsl,imx6-hdmi-i2c";
reg = <0x50>;
};
From imx6qdl-axelcommon.dtsi:
&hdmi_cec {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_hdmi_cec_2>;
status = "okay";
};
&hdmi_core {
ipu_id = <0>;
disp_id = <0>;
status = "okay";
};
&hdmi_video {
fsl,phy_reg_vlev = <0x0294>;
fsl,phy_reg_cksymtx = <0x800d>;
status = "okay";
};
&iomuxc {
...
...
hdmi_cec {
pinctrl_hdmi_cec_2: hdmicecgrp-2 {
fsl,pins = <
MX6QDL_PAD_KEY_ROW2__HDMI_TX_CEC_LINE 0x1f8b0
>;
};
};
...
...
};
Accessing the peripheral[edit | edit source]
For enabling the HDMI device, it is required to instantiate its framebuffer with the related configuration and changing the display ID of hdmi_core, for example, with a 1920x1080p60 display:
&mxcfb3 {
compatible = "fsl,mxc_sdc_fb";
disp_dev = "hdmi";
interface_pix_fmt = "RGB24";
mode_str ="1920x1080M@60";
default_bpp = <32>;
status = "okay";
}
&hdmi_core {
ipu_id = <0>;
disp_id = <1>;
status = "okay";
};
Linux messages at boot time[edit | edit source]
... ... [ 4.204455] mxc_hdmi 20e0000.hdmi_video: supply HDMI not found, using dummy regulator [ 4.517283] mxc_hdmi 20e0000.hdmi_video: Detected HDMI controller 0x13:0x1a:0xa0:0xc1 ... ... [ 4.525268] mxc_sdc_fb fb@2: registered mxc display driver hdmi ... ...
Additional information[edit | edit source]
HDMI framebuffer can be accessed through the standard /dev/fbX fb device.
The configured framebuffer can be checked using standard fbset utility:
root@desk-mx6:~# fbset -fb /dev/fb2
mode "1920x1080-60"
# D: 148.500 MHz, H: 67.500 kHz, V: 60.000 Hz
geometry 1920 1080 1920 1080 32
timings 6734 148 88 36 4 44 5
hsync high
vsync high
rgba 8/16,8/8,8/0,8/24
endmode
