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[PATCH] ide: hpt366: fix incorrect mask when checking at cmd_high_time

From Colin King <colin.king@canonical.com>
Newsgroups linux.kernel
Subject [PATCH] ide: hpt366: fix incorrect mask when checking at cmd_high_time
Date 2016-07-12 13:10 +0200
Message-ID <rU3JE-44Q-11@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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From: Colin Ian King <colin.king@canonical.com>

According to the HPT366 data sheet, PCI config space dword 0x40-0x43
bits 11:8 specify the primary drive cmd_high_time, however,
currently just 3 bits of the 4 are being used because the mask
is 0x07 and not 0x0f.  Fix the mask, allowing for the 40MHz clock
to be detected.

Also add in missing space between switch and parenthesis to clean
up a checkpatch warning.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/ide/hpt366.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index f94baad..f1dc6b6 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -1012,7 +1012,7 @@ static int init_chipset_hpt366(struct pci_dev *dev)
 		pci_read_config_dword(dev, 0x40, &itr1);
 
 		/* Detect PCI clock by looking at cmd_high_time. */
-		switch((itr1 >> 8) & 0x07) {
+		switch ((itr1 >> 8) & 0x0f) {
 			case 0x09:
 				pci_clk = 40;
 				break;
-- 
2.8.1

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Thread

[PATCH] ide: hpt366: fix incorrect mask when checking at cmd_high_time Colin King <colin.king@canonical.com> - 2016-07-12 13:10 +0200
  Re: [PATCH] ide: hpt366: fix incorrect mask when checking at  cmd_high_time Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-07-12 13:10 +0200
    Re: [PATCH] ide: hpt366: fix incorrect mask when checking at  cmd_high_time Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-07-12 13:20 +0200
      Re: [PATCH] ide: hpt366: fix incorrect mask when checking at  cmd_high_time Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2016-07-12 13:20 +0200
      Re: [PATCH] ide: hpt366: fix incorrect mask when checking at  cmd_high_time Colin Ian King <colin.king@canonical.com> - 2016-07-12 13:20 +0200

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