evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

scsi: ufs: dump hw regs on link failures

Browse source 
Dump host state, power info and host/vendor specific registers
on link failures. This provides useful info to debug the failures.

Change-Id: I76a4ea56f3aee6a51a5930381ad8d12ca8b43551
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
This commit is contained in:
Venkat Gopalakrishnan 2016-08-26 16:23:30 -07:00
parent b1fe3eedb2
commit 77c50a22e8
1 changed files with 10 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
drivers/scsi/ufs/ufshcd.c
View file

@ -3932,8 +3932,12 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd)
ret = (status != PWR_OK) ? status : -1;
}
out:
if (ret)
if (ret) {
ufsdbg_set_err_state(hba);
ufshcd_print_host_state(hba);
ufshcd_print_pwr_info(hba);
ufshcd_print_host_regs(hba);
}
ufshcd_save_tstamp_of_last_dme_cmd(hba);
spin_lock_irqsave(hba->host->host_lock, flags);
@ -4644,8 +4648,12 @@ link_startup:
ret = ufshcd_make_hba_operational(hba);
out:
if (ret)
if (ret) {
dev_err(hba->dev, "link startup failed %d\n", ret);
ufshcd_print_host_state(hba);
ufshcd_print_pwr_info(hba);
ufshcd_print_host_regs(hba);
}
return ret;
}