[PATCH v2 3/3] platform/x86: uniwill-laptop: Make KBD_LED_MAX_INTENSITY configurable

[Armin Wolf <W_Armin@gmx.de>]

Some (yet to be enabled) Tuxedo devices have a maximum intensity of
200 instead of the default 50. Remove the hardcoded maximum intensity
and use the device descriptor instead.

Suggested-by: Werner Sembach <wse@tuxedocomputers.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
---
 drivers/platform/x86/uniwill/uniwill-acpi.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/uniwill/uniwill-acpi.c b/drivers/platform/x86/uniwill/uniwill-acpi.c
index 4591ee299a90..5b8e35bf9a51 100644
--- a/drivers/platform/x86/uniwill/uniwill-acpi.c
+++ b/drivers/platform/x86/uniwill/uniwill-acpi.c
@@ -351,7 +351,6 @@
 #define LED_CHANNELS		3
 
 #define KBD_LED_CHANNELS	3
-#define KBD_LED_MAX_INTENSITY	50
 
 #define UNIWILL_FEATURE_FN_LOCK			BIT(0)
 #define UNIWILL_FEATURE_SUPER_KEY		BIT(1)
@@ -403,6 +402,7 @@ struct uniwill_data {
 	struct mc_subled led_mc_subled_info[LED_CHANNELS];
 	bool kbd_led_single_color;
 	u8 kbd_led_max_brightness;
+	u8 kbd_led_max_intensity;
 	unsigned int last_kbd_status;
 	union {
 		struct {
@@ -429,6 +429,7 @@ struct uniwill_device_descriptor {
 	unsigned int features;
 	bool kbd_led_single_color;
 	u8 kbd_led_max_brightness;
+	u8 kbd_led_max_intensity;
 	u8 lightbar_max_brightness;
 	/* Executed during driver probing */
 	int (*probe)(struct uniwill_data *data);
@@ -1780,8 +1781,8 @@ static int uniwill_rgb_kbd_led_init(struct uniwill_data *data)
 		 * Make sure that the initial intensity value is not greater than
 		 * the maximum intensity.
 		 */
-		if (regval > KBD_LED_MAX_INTENSITY) {
-			regval = KBD_LED_MAX_INTENSITY;
+		if (regval > data->kbd_led_max_intensity) {
+			regval = data->kbd_led_max_intensity;
 			ret = regmap_write(data->regmap, uniwill_kbd_led_channel_to_reg[i], regval);
 			if (ret < 0)
 				return ret;
@@ -1793,7 +1794,7 @@ static int uniwill_rgb_kbd_led_init(struct uniwill_data *data)
 			intensity_all_zeros = false;
 
 		data->kbd_led_mc_subled_info[i].intensity = regval;
-		data->kbd_led_mc_subled_info[i].max_intensity = KBD_LED_MAX_INTENSITY;
+		data->kbd_led_mc_subled_info[i].max_intensity = data->kbd_led_max_intensity;
 		data->kbd_led_mc_subled_info[i].channel = i;
 	}
 
@@ -2338,6 +2339,7 @@ static int uniwill_probe(struct platform_device *pdev)
 	data->features = device_descriptor.features;
 	data->kbd_led_single_color = device_descriptor.kbd_led_single_color;
 	data->kbd_led_max_brightness = device_descriptor.kbd_led_max_brightness;
+	data->kbd_led_max_intensity = device_descriptor.kbd_led_max_intensity;
 	data->lightbar_max_brightness = device_descriptor.lightbar_max_brightness;
 
 	/*
@@ -2675,6 +2677,7 @@ static struct uniwill_device_descriptor machenike_l16p_descriptor __initdata = {
 		    UNIWILL_FEATURE_USB_POWERSHARE,
 	.kbd_led_single_color = false,
 	.kbd_led_max_brightness = 4,
+	.kbd_led_max_intensity = 50,
 };
 
 static struct uniwill_device_descriptor lapqc71a_lapqc71b_descriptor __initdata = {
@@ -2858,6 +2861,7 @@ static struct uniwill_device_descriptor x4sp4nal_descriptor __initdata = {
 		    UNIWILL_FEATURE_USB_POWERSHARE,
 	.kbd_led_single_color = true,
 	.kbd_led_max_brightness = 2,
+	.kbd_led_max_intensity = 50,
 };
 
 static const struct dmi_system_id uniwill_dmi_table[] __initconst = {
@@ -3355,6 +3359,7 @@ static int __init uniwill_init(void)
 		device_descriptor.kbd_led_single_color = false;
 		/* Some models only support 3 brightness levels */
 		device_descriptor.kbd_led_max_brightness = 4;
+		device_descriptor.kbd_led_max_intensity = 50;
 		/* Some models only support 36 brightness levels per color component */
 		device_descriptor.lightbar_max_brightness = 200;
 		pr_warn("Enabling potentially unsupported features\n");
-- 
2.39.5