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Add retry when no keyboard backlight is recognized as this is probably wrong

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This commit is contained in:
Werner Sembach 2023-05-24 17:16:37 +02:00
parent 08502a6904
commit 3784ff5eb2
1 changed files with 21 additions and 12 deletions
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33
src/clevo_leds.h
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@ -46,6 +46,7 @@ void clevo_leds_set_color_extern(u32 color);
#include "clevo_interfaces.h"
#include <linux/led-class-multicolor.h>
#include <linux/delay.h>
#define CLEVO_KBD_BRIGHTNESS_MAX 0xff
#define CLEVO_KBD_BRIGHTNESS_DEFAULT 0x00
@ -274,25 +275,33 @@ static struct led_classdev_mc clevo_mcled_cdevs[3] = {
int clevo_leds_init(struct platform_device *dev)
{
int ret;
int ret, i;
u32 status;
union acpi_object *result;
u32 result_fallback;
status = clevo_evaluate_method2(CLEVO_CMD_GET_SPECS, 0, &result);
if (!status) {
if (result->type == ACPI_TYPE_BUFFER) {
pr_debug("CLEVO_CMD_GET_SPECS result->buffer.pointer[0x0f]: 0x%02x\n", result->buffer.pointer[0x0f]);
clevo_kb_backlight_type = result->buffer.pointer[0x0f];
for (i = 0; i < 3; ++i) {
status = clevo_evaluate_method2(CLEVO_CMD_GET_SPECS, 0, &result);
if (!status) {
if (result->type == ACPI_TYPE_BUFFER) {
pr_debug("CLEVO_CMD_GET_SPECS result->buffer.pointer[0x0f]: 0x%02x\n", result->buffer.pointer[0x0f]);
clevo_kb_backlight_type = result->buffer.pointer[0x0f];
if (clevo_kb_backlight_type)
break;
else {
pr_debug("clevo_kb_backlight_type 0x00 probably wrong, retrying...\n");
msleep(50);
}
}
else {
pr_err("CLEVO_CMD_GET_SPECS does not exist on this device or return value has wrong type, trying CLEVO_CMD_GET_BIOS_FEATURES\n");
status = -EINVAL;
}
ACPI_FREE(result);
}
else {
pr_err("CLEVO_CMD_GET_SPECS does not exist on this device or return value has wrong type, trying CLEVO_CMD_GET_BIOS_FEATURES\n");
status = -EINVAL;
pr_notice("CLEVO_CMD_GET_SPECS does not exist on this device or failed, trying CLEVO_CMD_GET_BIOS_FEATURES_1\n");
}
ACPI_FREE(result);
}
else {
pr_notice("CLEVO_CMD_GET_SPECS does not exist on this device or failed, trying CLEVO_CMD_GET_BIOS_FEATURES_1\n");
}
if (status || clevo_kb_backlight_type == CLEVO_KB_BACKLIGHT_TYPE_NONE) {