[PATCH 1/7] ata: libata-eh: Update DIPM comments to reflect reality

[Niklas Cassel <cassel@kernel.org>]

The comments describing which LPM policies that has DIPM enabled predates
the introduction of the LPM policies ATA_LPM_MIN_POWER_WITH_PARTIAL and
ATA_LPM_MED_POWER_WITH_DIPM.

Update the DIPM comments to reflect reality.

Signed-off-by: Niklas Cassel <cassel@kernel.org>
---
 drivers/ata/libata-eh.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index b990c1ee0b12..edbc5d7572d1 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3443,10 +3443,11 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 		return 0;
 
 	/*
-	 * DIPM is enabled only for MIN_POWER as some devices
-	 * misbehave when the host NACKs transition to SLUMBER.  Order
-	 * device and link configurations such that the host always
-	 * allows DIPM requests.
+	 * DIPM is enabled only for ATA_LPM_MIN_POWER,
+	 * ATA_LPM_MIN_POWER_WITH_PARTIAL, and ATA_LPM_MED_POWER_WITH_DIPM, as
+	 * some devices misbehave when the host NACKs transition to SLUMBER.
+	 * Order device and link configurations such that the host always allows
+	 * DIPM requests.
 	 */
 	ata_for_each_dev(dev, link, ENABLED) {
 		bool hipm = ata_id_has_hipm(dev->id);
@@ -3505,7 +3506,11 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 	if (ap && ap->slave_link)
 		ap->slave_link->lpm_policy = policy;
 
-	/* host config updated, enable DIPM if transitioning to MIN_POWER */
+	/*
+	 * Host config updated, enable DIPM if transitioning to
+	 * ATA_LPM_MIN_POWER, ATA_LPM_MIN_POWER_WITH_PARTIAL, or
+	 * ATA_LPM_MED_POWER_WITH_DIPM.
+	 */
 	ata_for_each_dev(dev, link, ENABLED) {
 		if (policy >= ATA_LPM_MED_POWER_WITH_DIPM && !no_dipm &&
 		    ata_id_has_dipm(dev->id)) {
-- 
2.49.0