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mei: gsc: setup char driver alive in spite of firmware handshake failure

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Setup char device in spite of firmware handshake failure.
In order to provide host access to the firmware status registers and other
information required for the manufacturing process.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220419193314.526966-4-daniele.ceraolospurio@intel.com
This commit is contained in:
Alexander Usyskin 2022-04-19 12:33:10 -07:00 committed by Daniele Ceraolo Spurio
parent a98c30fdc0
commit ce97126d6c
1 changed files with 6 additions and 6 deletions
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12
drivers/misc/mei/gsc-me.c
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@ -79,11 +79,12 @@ static int mei_gsc_probe(struct auxiliary_device *aux_dev,
pm_runtime_set_active(device);
pm_runtime_enable(device);
if (mei_start(dev)) {
dev_err(device, "init hw failure.\n");
ret = -ENODEV;
goto irq_err;
}
/* Continue to char device setup in spite of firmware handshake failure.
* In order to provide access to the firmware status registers to the user
* space via sysfs.
*/
if (mei_start(dev))
dev_warn(device, "init hw failure.\n");
pm_runtime_set_autosuspend_delay(device, MEI_GSC_RPM_TIMEOUT);
pm_runtime_use_autosuspend(device);
@ -97,7 +98,6 @@ static int mei_gsc_probe(struct auxiliary_device *aux_dev,
register_err:
mei_stop(dev);
irq_err:
devm_free_irq(device, hw->irq, dev);
err: