Evolution-X-Tensor/device_google_zuma
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Fix permissions for dp_hotplug_error_code sysfs node

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DisplayPort kernel driver passes error code/status to hardware composer
via the dp_hotplug_error_code sysfs file. When HWC receives/consumes
the error, it will write "0" into that file to reset the error code. So
this file must be readable and writable by the HWC code running with
"system" user/group permissions.
Previously we used to set the ownership to system:system, but in order
to be more consistent with the rest of sysfs files in that directory,
we can use root:graphics instead with permissions 0664. HWC runs
under the "graphics" group, so this should allow HWC write access.

Bug: 324953626
Test: checked permissions of dp_hotplug_error_code sysfs
Change-Id: Idf65acc12d158a78565c41f4e2aea24362e2cdff
This commit is contained in:
Sergey Volk 2024-02-14 00:57:52 +00:00
parent 57df3553b6
commit b5769ac1f1
2 changed files with 2 additions and 2 deletions
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2
conf/init.zuma.rc
View file

@ -681,8 +681,6 @@ on fs
chown system system /sys/class/dqe0/atc/gain_limit chown system system /sys/class/dqe0/atc/gain_limit
chown system system /sys/class/dqe0/atc/lt_calc_ab_shift chown system system /sys/class/dqe0/atc/lt_calc_ab_shift
chown system system /sys/devices/platform/110f0000.drmdp/drm-displayport/dp_hotplug_error_code
chown system system /sys/devices/platform/19470000.drmdecon/early_wakeup chown system system /sys/devices/platform/19470000.drmdecon/early_wakeup
chmod 0660 /sys/devices/platform/19470000.drmdecon/early_wakeup chmod 0660 /sys/devices/platform/19470000.drmdecon/early_wakeup

2
usb/usb/android.hardware.usb-service.rc
View file

@ -16,6 +16,7 @@ on post-fs
chown root system /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_sink_enable chown root system /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_sink_enable
chown root system /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_source_enable chown root system /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_source_enable
chown root system /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/update_sdp_enum_timeout chown root system /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/update_sdp_enum_timeout
chown root graphics /sys/devices/platform/110f0000.drmdp/drm-displayport/dp_hotplug_error_code
chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/hpd chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/hpd
chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/irq_hpd chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/irq_hpd
chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/orientation chown root system /sys/devices/platform/110f0000.drmdp/drm-displayport/orientation
@ -40,6 +41,7 @@ on post-fs
chmod 664 /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_sink_enable chmod 664 /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_sink_enable
chmod 664 /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_source_enable chmod 664 /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/usb_limit_source_enable
chmod 664 /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/update_sdp_enum_timeout chmod 664 /sys/devices/platform/10cb0000.hsi2c/i2c-11/11-0025/update_sdp_enum_timeout
chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/dp_hotplug_error_code
chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/hpd chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/hpd
chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/irq_hpd chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/irq_hpd
chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/orientation chmod 664 /sys/devices/platform/110f0000.drmdp/drm-displayport/orientation