On 2020-11-18 01:23, Asutosh Das (asd) wrote:
On 11/16/2020 11:04 PM, Can Guo wrote:
When AH8 error happens, all the regs and states are dumped in err
handler.
Sometime we need to look into host regs right after AH8 error happens,
which is before leaving the IRQ handler.
Signed-off-by: Can
On 2020-11-17 15:04, Can Guo wrote:
Serialize eh_work with system PM events and async scan to make sure
eh_work
does not run in parallel with them.
Signed-off-by: Can Guo
---
drivers/scsi/ufs/ufshcd.c | 64
+--
drivers/scsi/ufs/ufshcd.h | 1 +
2
On 2020-11-24 15:28, Can Guo wrote:
If we want to disable clocks to save power but still keep the link
active,
core_clk_unipro, as same as ref_clk, should not be the one being
disabled.
Signed-off-by: Can Guo
---
drivers/scsi/ufs/ufs-qcom.c | 6 ++
1 file changed, 6 insertions(+)
diff
On 2020-11-25 08:53, Can Guo wrote:
On 2020-11-25 05:09, Bean Huo wrote:
On Mon, 2020-11-23 at 23:28 -0800, Can Guo wrote:
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -229,6 +229,8 @@ struct ufs_dev_cmd {
* @max_freq: maximum frequency supported by the clock
* @min_freq: min frequency that can be
On 2020-08-18 13:42, Asutosh Das wrote:
On Mon, Aug 17 2020 at 22:21 -0700, Can Guo wrote:
Commit 5586dd8ea250a ("scsi: ufs: Fix a race condition between error
handler and runtime PM ops") moves the ufshcd_scsi_block_requests()
inside
err_handler(), but forgets to remove the
On 2020-07-28 13:00, Can Guo wrote:
The infos of the last interrupt status and its timestamp are very
helpful
when debug system stability issues, e.g. IRQ starvation, so add them to
ufshcd_print_host_state. Meanwhile, UFS device infos like model name
and
its FW version also come in handy
On 2020-07-28 13:00, Can Guo wrote:
Dumping testbus registers is heavy enough to cause stability issues
sometime, just remove them as of now.
Signed-off-by: Can Guo
---
drivers/scsi/ufs/ufs-qcom.c | 32
1 file changed, 32 deletions(-)
diff --git
On 2020-07-23 10:34, Can Guo wrote:
If ufs_qcom_dump_dbg_regs() calls ufs_qcom_testbus_config() from
ufshcd_suspend/resume and/or clk gate/ungate context,
pm_runtime_get_sync()
and ufshcd_hold() will cause racing problems. Fix this by removing the
unnecessary calls of pm_runtime_get_sync() and
Hi Can,
On 2020-07-23 10:34, Can Guo wrote:
The scsi_block_reqs_cnt increased in ufshcd_hold() is supposed to be
decreased back in ufshcd_ungate_work() in a paired way. However, if
specific ufshcd_hold/release sequences are met, it is possible that
scsi_block_reqs_cnt is increased twice but only
On 2020-07-23 10:34, Can Guo wrote:
Clock gating features can be turned on/off selectively which means its
state information is only important if it is enabled. This change makes
sure that we only look at state of clk-gating if it is enabled.
Signed-off-by: Can Guo
Reviewed-by: Avri Altman
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