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From:   Guenter Roeck <linux@roeck-us.net>
To:     linux-hwmon@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, Clemens Ladisch <clemens@ladisch.de>,
        Jean Delvare <jdelvare@suse.com>,
        Brad Campbell <lists2009@fnarfbargle.com>,
        =?UTF-8?q?Ondrej=20=C4=8Cerman?= <ocerman@sda1.eu>,
        Bernhard Gebetsberger <bernhard.gebetsberger@gmx.at>,
        Holger Kiehl <Holger.Kiehl@dwd.de>,
        Michael Larabel <michael@phoronix.com>,
        Jonathan McDowell <noodles@earth.li>,
        Ken Moffat <zarniwhoop73@googlemail.com>,
        Sebastian Reichel <sebastian.reichel@collabora.com>,
        Darren Salt <devspam@moreofthesa.me.uk>,
        Guenter Roeck <linux@roeck-us.net>
Subject: [PATCH v4 5/6] hwmon: (k10temp) Don't show temperature limits on Ryzen (Zen) CPUs
Date:   Wed, 22 Jan 2020 08:07:59 -0800
Message-Id: <20200122160800.12560-6-linux@roeck-us.net>
In-Reply-To: <20200122160800.12560-1-linux@roeck-us.net>
References: <20200122160800.12560-1-linux@roeck-us.net>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

The maximum Tdie or Tctl is not published for Ryzen CPUs. What is
known, however, is that the traditional value of 70 degrees C is no
longer correct. On top of that, the limit applies to Tctl, not to Tdie.
Displaying it in either context is meaningless, confusing, and wrong.
Stop doing it.

Tested-by: Brad Campbell <lists2009@fnarfbargle.com>
Tested-by: Holger Kiehl <holger.kiehl@dwd.de>
Tested-by: Michael Larabel <michael@phoronix.com>
Tested-by: Jonathan McDowell <noodles@earth.li>
Tested-by: Ken Moffat <zarniwhoop73@googlemail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/k10temp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index b961e12c6f58..4a470b5195ee 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -355,7 +355,7 @@ static umode_t k10temp_is_visible(const void *_data,
 			}
 			break;
 		case hwmon_temp_max:
-			if (channel)
+			if (channel || data->show_tdie)
 				return 0;
 			break;
 		case hwmon_temp_crit:
-- 
2.17.1