The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 0c072385348e3ac5229145644055d3e2afb5b3db # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2023050606-coil-speech-7d6d@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^..
Possible dependencies:
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From 0c072385348e3ac5229145644055d3e2afb5b3db Mon Sep 17 00:00:00 2001 From: Babu Moger Babu.Moger@amd.com Date: Thu, 13 Apr 2023 16:39:58 -0500 Subject: [PATCH] hwmon: (k10temp) Check range scale when CUR_TEMP register is read-write MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Spec says, when CUR_TEMP_TJ_SEL == 3 and CUR_TEMP_RANGE_SEL == 0, it should use RangeUnadjusted is 0, which is (CurTmp*0.125 -49) C. The CUR_TEMP register is read-write when CUR_TEMP_TJ_SEL == 3 (bit 17-16).
Add the check to detect it.
Sensors command's output before the patch. $sensors k10temp-pci-00c3 Adapter: PCI adapter Tctl: +76.6°C <- Wrong value Tccd1: +26.5°C Tccd2: +27.5°C Tccd3: +27.2°C Tccd4: +27.5°C Tccd5: +26.0°C Tccd6: +26.2°C Tccd7: +25.0°C Tccd8: +26.5°C
Sensors command's output after the patch. $sensors k10temp-pci-00c3 Adapter: PCI adapter Tctl: +28.8°C <- corrected value Tccd1: +27.5°C Tccd2: +28.5°C Tccd3: +28.5°C Tccd4: +28.5°C Tccd5: +27.0°C Tccd6: +27.5°C Tccd7: +27.0°C Tccd8: +27.5°C
Signed-off-by: Babu Moger babu.moger@amd.com Fixes: 1b59788979ac ("hwmon: (k10temp) Add temperature offset for Ryzen 2700X") Link: https://lore.kernel.org/r/20230413213958.847634-1-babu.moger@amd.com Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck linux@roeck-us.net
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c index 5a9d47a229e4..be8bbb1c3a02 100644 --- a/drivers/hwmon/k10temp.c +++ b/drivers/hwmon/k10temp.c @@ -75,6 +75,7 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
#define ZEN_CUR_TEMP_SHIFT 21 #define ZEN_CUR_TEMP_RANGE_SEL_MASK BIT(19) +#define ZEN_CUR_TEMP_TJ_SEL_MASK GENMASK(17, 16)
struct k10temp_data { struct pci_dev *pdev; @@ -155,7 +156,8 @@ static long get_raw_temp(struct k10temp_data *data)
data->read_tempreg(data->pdev, ®val); temp = (regval >> ZEN_CUR_TEMP_SHIFT) * 125; - if (regval & data->temp_adjust_mask) + if ((regval & data->temp_adjust_mask) || + (regval & ZEN_CUR_TEMP_TJ_SEL_MASK) == ZEN_CUR_TEMP_TJ_SEL_MASK) temp -= 49000; return temp; }