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authorMinwoo Im <dn3108@gmail.com>2017-06-11 23:53:00 +0900
committerTejun Heo <tj@kernel.org>2017-06-12 14:07:49 -0400
commit08fc4756c35fb076027374ff026a82de3de3c5f4 (patch)
tree2830e88518dabc7acef8cef79e566d98aa76c5d3
parentf356b08205f6668248960093faf9326c7852a38d (diff)
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libahci: wrong comments in ahci_do_softreset()
AHCI 1.3.1 Spec says that software shall build two H2D register FISes in the command list to send a software reset. The comments in ahci_do_softreset() is currently D2H instead of H2D. Signed-off-by: Minwoo Im <dn3108@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
-rw-r--r--drivers/ata/libahci.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 6154f0e2b81a..b3a685ad9b87 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1400,7 +1400,7 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
ata_tf_init(link->device, &tf);
- /* issue the first D2H Register FIS */
+ /* issue the first H2D Register FIS */
msecs = 0;
now = jiffies;
if (time_after(deadline, now))
@@ -1417,7 +1417,7 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
/* spec says at least 5us, but be generous and sleep for 1ms */
ata_msleep(ap, 1);
- /* issue the second D2H Register FIS */
+ /* issue the second H2D Register FIS */
tf.ctl &= ~ATA_SRST;
ahci_exec_polled_cmd(ap, pmp, &tf, 0, 0, 0);