From ea08eeccae9297f7aabd2ef7f0c2517ac4549acc Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:18:26 +0000
Subject: [PATCH] write in 30M
---
kernel/drivers/ata/libata-sata.c | 21 +++++++++++++++++----
1 files changed, 17 insertions(+), 4 deletions(-)
diff --git a/kernel/drivers/ata/libata-sata.c b/kernel/drivers/ata/libata-sata.c
index c16423e..4565606 100644
--- a/kernel/drivers/ata/libata-sata.c
+++ b/kernel/drivers/ata/libata-sata.c
@@ -317,7 +317,7 @@
* immediately after resuming. Delay 200ms before
* debouncing.
*/
- if (!(link->flags & ATA_LFLAG_NO_DB_DELAY))
+ if (!(link->flags & ATA_LFLAG_NO_DEBOUNCE_DELAY))
ata_msleep(link->ap, 200);
/* is SControl restored correctly? */
@@ -394,10 +394,23 @@
case ATA_LPM_MED_POWER_WITH_DIPM:
case ATA_LPM_MIN_POWER_WITH_PARTIAL:
case ATA_LPM_MIN_POWER:
- if (ata_link_nr_enabled(link) > 0)
- /* no restrictions on LPM transitions */
+ if (ata_link_nr_enabled(link) > 0) {
+ /* assume no restrictions on LPM transitions */
scontrol &= ~(0x7 << 8);
- else {
+
+ /*
+ * If the controller does not support partial, slumber,
+ * or devsleep, then disallow these transitions.
+ */
+ if (link->ap->host->flags & ATA_HOST_NO_PART)
+ scontrol |= (0x1 << 8);
+
+ if (link->ap->host->flags & ATA_HOST_NO_SSC)
+ scontrol |= (0x2 << 8);
+
+ if (link->ap->host->flags & ATA_HOST_NO_DEVSLP)
+ scontrol |= (0x4 << 8);
+ } else {
/* empty port, power off */
scontrol &= ~0xf;
scontrol |= (0x1 << 2);
--
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