build/patch/kernel/archive/mvebu-5.10/92-mvebu-gpio-remove-hardcoded-timer-assignment-2.patch

--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -641,39 +641,81 @@ static int mvebu_pwm_request(struct pwm_
 	struct mvebu_pwm *mvpwm = to_mvebu_pwm(chip);
 	struct mvebu_gpio_chip *mvchip = mvpwm->mvchip;
 	struct gpio_desc *desc;
+    enum mvebu_pwm_ctrl id;
 	unsigned long flags;
 	int ret = 0;
+    struct mvebu_pwm_chip_drv *chip_data;
 
-	spin_lock_irqsave(&mvpwm->lock, flags);
+	spin_lock_irqsave(&mvpwm->controller.lock, flags);
 
-	if (mvpwm->gpiod) {
-		ret = -EBUSY;
-	} else {
-		desc = gpiochip_request_own_desc(&mvchip->chip,
+	regmap_read(mvchip->regs, GPIO_BLINK_EN_OFF + mvchip->offset,
+		    &mvchip->blink_en_reg);
+
+	if (pwm->chip_data || (mvchip->blink_en_reg & BIT(pwm->hwpwm)))
+		return -EBUSY;
+
+	desc = gpiochip_request_own_desc(&mvchip->chip,
 						 pwm->hwpwm, "mvebu-pwm",
 						 GPIO_ACTIVE_HIGH,
 						 GPIOD_OUT_LOW);
-		if (IS_ERR(desc)) {
-			ret = PTR_ERR(desc);
-			goto out;
-		}
+	if (IS_ERR(desc)) {
+		ret = PTR_ERR(desc);
+		goto out;
+    }
+
+    ret = gpiod_direction_output(desc, 0);
+	if (ret) {
+		gpiochip_free_own_desc(desc);
+		goto out;
+	}
 
-		mvpwm->gpiod = desc;
+    chip_data = kzalloc(sizeof(struct mvebu_pwm_chip_drv), GFP_KERNEL);
+	if (!chip_data) {
+		gpiochip_free_own_desc(desc);
+		ret = -ENOMEM;
+		goto out;
 	}
+
+	for (id = MVEBU_PWM_CTRL_SET_A;id < MVEBU_PWM_CTRL_MAX; id++) {
+		if (!mvebu_pwm_list[id]->in_use) {
+			chip_data->ctrl   = id;
+			chip_data->master = true;
+			mvebu_pwm_list[id]->in_use = true;
+			break;
+		}
+ 	}	
+
+    if (!chip_data->master)
+		chip_data->ctrl = mvpwm->default_counter;
+
+	regmap_update_bits(mvchip->regs, GPIO_BLINK_CNT_SELECT_OFF + mvchip->offset,
+				BIT(pwm->hwpwm), chip_data->ctrl ? BIT(pwm->hwpwm) : 0);
+
+	chip_data->gpiod = desc;
+	pwm->chip_data = chip_data;
+
+	regmap_read(mvchip->regs, GPIO_BLINK_CNT_SELECT_OFF + mvchip->offset,
+		    &mvpwm->blink_select);
+    
 out:
-	spin_unlock_irqrestore(&mvpwm->lock, flags);
+	spin_unlock_irqrestore(&mvpwm->controller.lock, flags);
 	return ret;
 }
 
 static void mvebu_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
 	struct mvebu_pwm *mvpwm = to_mvebu_pwm(chip);
+    struct mvebu_pwm_chip_drv *chip_data = (struct mvebu_pwm_chip_drv*) pwm->chip_data;
 	unsigned long flags;
 
-	spin_lock_irqsave(&mvpwm->lock, flags);
-	gpiochip_free_own_desc(mvpwm->gpiod);
-	mvpwm->gpiod = NULL;
-	spin_unlock_irqrestore(&mvpwm->lock, flags);
+    spin_lock_irqsave(&mvpwm->controller.lock, flags);
+    if (chip_data->master)
+	    mvebu_pwm_list[chip_data->ctrl]->in_use = false;
+    
+    gpiochip_free_own_desc(chip_data->gpiod);
+    kfree(chip_data);
+    pwm->chip_data = NULL;
+    spin_unlock_irqrestore(&mvpwm->controller.lock, flags);
 }
 
 static void mvebu_pwm_get_state(struct pwm_chip *chip,
@@ -721,19 +763,21 @@ static void mvebu_pwm_get_state(struct p
 	else
 		state->enabled = false;
 
-	spin_unlock_irqrestore(&mvpwm->lock, flags);
+	spin_unlock_irqrestore(&controller->lock, flags);
 }
 
 static int mvebu_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 			   const struct pwm_state *state)
 {
 	struct mvebu_pwm *mvpwm = to_mvebu_pwm(chip);
+    struct mvebu_pwm_chip_drv *chip_data = (struct mvebu_pwm_chip_drv*) pwm->chip_data;
+    struct mvebu_pwmchip *controller = mvebu_pwm_list[chip_data->ctrl];
 	struct mvebu_gpio_chip *mvchip = mvpwm->mvchip;
 	unsigned long long val;
 	unsigned long flags;
 	unsigned int on, off;
 
-	val = (unsigned long long) mvpwm->clk_rate * state->duty_cycle;
+	val = (unsigned long long) controller->clk_rate * state->duty_cycle;
 	do_div(val, NSEC_PER_SEC);
 	if (val > UINT_MAX)
 		return -EINVAL;