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-rw-r--r--drivers/nvme/host/core.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 9583a5f58a1d..00b2818dac31 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1316,6 +1316,14 @@ static void nvme_configure_apst(struct nvme_ctrl *ctrl)
table->entries[state] = target;
/*
+ * Don't allow transitions to the deepest state
+ * if it's quirked off.
+ */
+ if (state == ctrl->npss &&
+ (ctrl->quirks & NVME_QUIRK_NO_DEEPEST_PS))
+ continue;
+
+ /*
* Is this state a useful non-operational state for
* higher-power states to autonomously transition to?
*/
@@ -1387,16 +1395,6 @@ struct nvme_core_quirk_entry {
};
static const struct nvme_core_quirk_entry core_quirks[] = {
- /*
- * Seen on a Samsung "SM951 NVMe SAMSUNG 256GB": using APST causes
- * the controller to go out to lunch. It dies when the watchdog
- * timer reads CSTS and gets 0xffffffff.
- */
- {
- .vid = 0x144d,
- .fr = "BXW75D0Q",
- .quirks = NVME_QUIRK_NO_APST,
- },
};
/* match is null-terminated but idstr is space-padded. */
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