[PATCH v3 09/12] platform/x86: oxpec: Move pwm_enable read to its own function

[Antheas Kapenekakis <lkml@antheas.dev>]

Currently, this driver breaks ABI by using auto as 0 and manual as 1.
However, for pwm_enable, 0 is full speed, 1 is manual, and 2 is auto.
For the correction to be possible, this means that the pwm_enable
endpoint will need access to both pwm enable and value (as for
the 0th value, the fan needs to be set to full power).

Therefore, begin by moving the current pwm_enable read to its own
function, oxp_pwm_enable.

Signed-off-by: Antheas Kapenekakis <lkml@antheas.dev>
---
 drivers/platform/x86/oxpec.c | 50 +++++++++++++++++++-----------------
 1 file changed, 27 insertions(+), 23 deletions(-)

diff --git a/drivers/platform/x86/oxpec.c b/drivers/platform/x86/oxpec.c
index eb7eafebbd37..471444fbd786 100644
--- a/drivers/platform/x86/oxpec.c
+++ b/drivers/platform/x86/oxpec.c
@@ -766,6 +766,32 @@ static int oxp_pwm_disable(void)
 	}
 }
 
+static int oxp_pwm_read(long *val)
+{
+	switch (board) {
+	case orange_pi_neo:
+		return read_from_ec(ORANGEPI_SENSOR_PWM_ENABLE_REG, 1, val);
+	case aok_zoe_a1:
+	case aya_neo_2:
+	case aya_neo_air:
+	case aya_neo_air_1s:
+	case aya_neo_air_plus_mendo:
+	case aya_neo_air_pro:
+	case aya_neo_flip:
+	case aya_neo_geek:
+	case aya_neo_kun:
+	case oxp_2:
+	case oxp_fly:
+	case oxp_mini_amd:
+	case oxp_mini_amd_a07:
+	case oxp_mini_amd_pro:
+	case oxp_x1:
+		return read_from_ec(OXP_SENSOR_PWM_ENABLE_REG, 1, val);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
 /* Callbacks for hwmon interface */
 static umode_t oxp_ec_hwmon_is_visible(const void *drvdata,
 				       enum hwmon_sensor_types type, u32 attr, int channel)
@@ -863,29 +889,7 @@ static int oxp_platform_read(struct device *dev, enum hwmon_sensor_types type,
 			}
 			return 0;
 		case hwmon_pwm_enable:
-			switch (board) {
-			case orange_pi_neo:
-				return read_from_ec(ORANGEPI_SENSOR_PWM_ENABLE_REG, 1, val);
-			case aok_zoe_a1:
-			case aya_neo_2:
-			case aya_neo_air:
-			case aya_neo_air_1s:
-			case aya_neo_air_plus_mendo:
-			case aya_neo_air_pro:
-			case aya_neo_flip:
-			case aya_neo_geek:
-			case aya_neo_kun:
-			case oxp_2:
-			case oxp_fly:
-			case oxp_mini_amd:
-			case oxp_mini_amd_a07:
-			case oxp_mini_amd_pro:
-			case oxp_x1:
-				return read_from_ec(OXP_SENSOR_PWM_ENABLE_REG, 1, val);
-			default:
-				break;
-			}
-			break;
+			return oxp_pwm_read(val);
 		default:
 			break;
 		}
-- 
2.48.1