hwmon: (coretemp) Atom CPUs don't support TjMax; no warning needed

Display warning "Unable to read TjMax from CPU x" only if the CPU
is supposed to support it. This is not the case for the various Atom CPUs.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index 2e5e2dc..78be661 100644 (file)
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -316,6 +316,18 @@ static int adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
        return tjmax;
 }
 
+static bool cpu_has_tjmax(struct cpuinfo_x86 *c)
+{
+       u8 model = c->x86_model;
+
+       return model > 0xe &&
+              model != 0x1c &&
+              model != 0x26 &&
+              model != 0x27 &&
+              model != 0x35 &&
+              model != 0x36;
+}
+
 static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
 {
        int err;
@@ -328,7 +340,7 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev)
         */
        err = rdmsr_safe_on_cpu(id, MSR_IA32_TEMPERATURE_TARGET, &eax, &edx);
        if (err) {
-               if (c->x86_model > 0xe && c->x86_model != 0x1c)
+               if (cpu_has_tjmax(c))
                        dev_warn(dev, "Unable to read TjMax from CPU %u\n", id);
        } else {
                val = (eax >> 16) & 0xff;