hwmon: (fam15h_power) Add platform check function

This patch adds a platform check function to make code more readable.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

1 files changed, 7 insertions, 2 deletions

diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c
index 7d9d6976a575..eb97a9241d17 100644
--- a/drivers/hwmon/fam15h_power.c
+++ b/drivers/hwmon/fam15h_power.c
@@ -78,6 +78,11 @@ struct fam15h_power_data {
         unsigned long power_period;
 };
 
+static bool is_carrizo_or_later(void)
+{
+        return boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60;
+}
+
 static ssize_t show_power(struct device *dev,
                           struct device_attribute *attr, char *buf)
 {
@@ -94,7 +99,7 @@ static ssize_t show_power(struct device *dev,
          * On Carrizo and later platforms, TdpRunAvgAccCap bit field
          * is extended to 4:31 from 4:25.
          */
-        if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60) {
+        if (is_carrizo_or_later()) {
                 running_avg_capture = val >> 4;
                 running_avg_capture = sign_extend32(running_avg_capture, 27);
         } else {
@@ -111,7 +116,7 @@ static ssize_t show_power(struct device *dev,
          * On Carrizo and later platforms, ApmTdpLimit bit field
          * is extended to 16:31 from 16:28.
          */
-        if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model >= 0x60)
+        if (is_carrizo_or_later())
                 tdp_limit = val >> 16;
         else
                 tdp_limit = (val >> 16) & 0x1fff;