thermal: imx: Use better parameter names than "val"

The values passed to imx_init_calib() and imx_init_temp_grade() are
read from specific OCOTP values. Use their names (in lower case) as
parameter name instead of "val" to make the code easier to understand.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

drivers/thermal/imx_thermal.c

@@ -347,13 +347,13 @@ static struct thermal_zone_device_ops imx_tz_ops = {
 	.set_trip_temp = imx_set_trip_temp,
 };
 
-static int imx_init_calib(struct platform_device *pdev, u32 val)
+static int imx_init_calib(struct platform_device *pdev, u32 ocotp_ana1)
 {
 	struct imx_thermal_data *data = platform_get_drvdata(pdev);
 	int t1, n1;
 	u64 temp64;
 
-	if (val == 0 || val == ~0) {
+	if (ocotp_ana1 == 0 || ocotp_ana1 == ~0) {
 		dev_err(&pdev->dev, "invalid sensor calibration data\n");
 		return -EINVAL;
 	}
@@ -364,7 +364,7 @@ static int imx_init_calib(struct platform_device *pdev, u32 val)
 	 * Use universal formula now and only need sensor value @ 25C
 	 * slope = 0.4297157 - (0.0015976 * 25C fuse)
 	 */
-	n1 = val >> 20;
+	n1 = ocotp_ana1 >> 20;
 	t1 = 25; /* t1 always 25C */
 
 	/*
@@ -392,12 +392,12 @@ static int imx_init_calib(struct platform_device *pdev, u32 val)
 	return 0;
 }
 
-static void imx_init_temp_grade(struct platform_device *pdev, u32 val)
+static void imx_init_temp_grade(struct platform_device *pdev, u32 ocotp_mem0)
 {
 	struct imx_thermal_data *data = platform_get_drvdata(pdev);
 
 	/* The maximum die temp is specified by the Temperature Grade */
-	switch ((val >> 6) & 0x3) {
+	switch ((ocotp_mem0 >> 6) & 0x3) {
 	case 0: /* Commercial (0 to 95C) */
 		data->temp_grade = "Commercial";
 		data->temp_max = 95000;