From: Tejun Heo <htejun@gmail.com>
Date: Tue, 11 Apr 2006 13:32:19 +0000 (+0900)
Subject: [PATCH] sata_sil24: kill 10ms sleep in softreset
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=0eaa6058a6a664ce692e3dc38c6891a74ca47f59;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

[PATCH] sata_sil24: kill 10ms sleep in softreset

Nothing, not the datasheet nor the errats, says this delay is
necessary and with the previous PORT_CS_INIT change, we know the
controller is in good state.  Kill 10ms sleep.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
index bfbd630a889c..be4817e6502b 100644
--- a/drivers/scsi/sata_sil24.c
+++ b/drivers/scsi/sata_sil24.c
@@ -480,12 +480,7 @@ static int sil24_softreset(struct ata_port *ap, unsigned int *class)
 		goto err;
 	}
 
-	/*
-	 * XXX: Not sure whether the following sleep is needed or not.
-	 * The original driver had it.  So....
-	 */
-	msleep(10);
-
+	/* do SRST */
 	prb->ctrl = PRB_CTRL_SRST;
 	prb->fis[1] = 0; /* no PM yet */