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调整序号增加内容. 

Signed-off-by: rick.chan <chenyang@autoai.com>
This commit is contained in:
rick.chan 2020-09-16 17:14:49 +08:00
parent 140edd4e04
commit 04585d5c63
2 changed files with 9 additions and 7 deletions
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2
Software/Development/OperatingSystem/Linux/Kernel/Modules/DRM/EDID/EDID_修改和参数说明.md
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@ -131,7 +131,7 @@ file. After the make procedure is repeated, the EDID data set is ready
to be used.
```
## 5.外部参考资料
## 6.外部参考资料
1. <https://e2e.ti.com/support/processors/f/791/t/543371?jacinto6-hdmi-display-issue-with-drm-edid->
2. <https://unix.stackexchange.com/questions/97023/how-to-make-edid>

14
Software/Development/OperatingSystem/Linux/Kernel/Modules/DRM/EDID/Kernel_EDID_配置.md
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@ -2,17 +2,19 @@
以 1920x720 为例。
## 编译参数配置
## 1.编译参数配置
config 如下：
```cpp
CONFIG_EXTRA_FIRMWARE="1920x720.bin"
CONFIG_EXTRA_FIRMWARE_DIR="Documentation/EDID"
```bash
CONFIG_DRM_LOAD_EDID_FIRMWARE=y
# Built-in firmware
# CONFIG_FIRMWARE_IN_KERNEL=y
# CONFIG_EXTRA_FIRMWARE="1920x720.bin 1920x1080.bin"
# CONFIG_EXTRA_FIRMWARE_DIR="firmware" // this means 1920x720.bin and 1920x1080.bin are in $(source_dir)/firmware
```
## Uboot 传参
## 2.Uboot 传参
```bash
setenv mmcargs 'setenv bootargs console=${console},${baudrate} root=${mmcroot} drm_kms_helper.edid_firmware=HDMI-A-1:1920x720.bin drm.debug=0x06'
@ -20,7 +22,7 @@ setenv mmcargs 'setenv bootargs console=${console},${baudrate} root=${mmcroot} d
drm_kms_helper.edid_firmware=HDMI-A-1:1920x720.bin,HDMI-A-2:1920x720.bin
```
1920x720.bin 应存在于（Linux 固件目录） 或 /vendor/etc/firmware（Android）目录下。
1920x720.bin 应存在于 /lib/firmware/（for Linux） 或 /vendor/etc/firmware（for Android）目录下。
drm.debug=0x06 为 log 开关，对应文件 drivers/gpu/drm/drm_drv.c，其部分内容如下：