linux-kernel - [PATCH]1/3 intel_menlow:Adding comment for GTHS legal values

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Message-ID: <7D0189F5BE1DF549A570B212D1D5612182AF02@bgsmsx412.gar.corp.intel.com>
Date:	Wed, 5 Nov 2008 16:15:13 +0530
From:	"Thomas, Sujith" <sujith.thomas@...el.com>
To:	"Len Brown" <lenb@...nel.org>, "Zhang, Rui" <rui.zhang@...el.com>,
	"Thomas, Sujith" <sujith.thomas@...el.com>
Cc:	"Brown, Len" <len.brown@...el.com>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	<linux-acpi@...r.kernel.org>,
	"Andrew Morton" <akpm@...ux-foundation.org>
Subject: [PATCH]1/3 intel_menlow:Adding comment for GTHS legal values

Documentation of legal values for GTHS
To be patched over Rui's 09/11 bug fix patch

Signed-off-by: Sujith Thomas <sujith.thomas@...el.com>
---
 drivers/misc/intel_menlow.c |    5 +++++
 1 file changed, 5 insertions(+)

Index: linux-2.6.27/drivers/misc/intel_menlow.c
===================================================================
--- linux-2.6.27.orig/drivers/misc/intel_menlow.c
+++ linux-2.6.27/drivers/misc/intel_menlow.c
@@ -52,6 +52,11 @@ MODULE_LICENSE("GPL");
 #define MEMORY_ARG_CUR_BANDWIDTH 1
 #define MEMORY_ARG_MAX_BANDWIDTH 0
 
+/*
+ * GTHS returning 'n' would mean that [0,n-1] states are supported
+ * In that case max_cstate would be n-1
+ * GTHS returning '0' would mean that no bandwidth control states are
supported
+ */
 static int memory_get_int_max_bandwidth(struct thermal_cooling_device
*cdev,
 					unsigned long *max_state)
 {
--
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