diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch b/target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch new file mode 100644 index 0000000000..f2cf28433a --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch @@ -0,0 +1,107 @@ +From b1d33d1e5a44afd2025c5a44a85dc2fab00ec6a7 Mon Sep 17 00:00:00 2001 +From: popcornmix <popcornmix@gmail.com> +Date: Tue, 5 Nov 2019 11:28:19 +0000 +Subject: [PATCH] Revert "pinctrl: bcm2835: Pass irqchip when adding + gpiochip" + +This reverts commit 73345a18d464b1b945b29f54f630ace6873344e2. +--- + drivers/pinctrl/bcm/pinctrl-bcm2835.c | 55 +++++++++++++++------------ + 1 file changed, 30 insertions(+), 25 deletions(-) + +--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c ++++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c +@@ -78,6 +78,7 @@ + struct bcm2835_pinctrl { + struct device *dev; + void __iomem *base; ++ int irq[BCM2835_NUM_IRQS]; + + /* note: locking assumes each bank will have its own unsigned long */ + unsigned long enabled_irq_map[BCM2835_NUM_BANKS]; +@@ -381,14 +382,14 @@ static void bcm2835_gpio_irq_handler(str + int group; + int i; + +- for (i = 0; i < BCM2835_NUM_IRQS; i++) { +- if (chip->irq.parents[i] == irq) { ++ for (i = 0; i < ARRAY_SIZE(pc->irq); i++) { ++ if (pc->irq[i] == irq) { + group = i; + break; + } + } + /* This should not happen, every IRQ has a bank */ +- if (i == BCM2835_NUM_IRQS) ++ if (i == ARRAY_SIZE(pc->irq)) + BUG(); + + chained_irq_enter(host_chip, desc); +@@ -1086,7 +1087,6 @@ static int bcm2835_pinctrl_probe(struct + struct device *dev = &pdev->dev; + struct device_node *np = dev->of_node; + struct bcm2835_pinctrl *pc; +- struct gpio_irq_chip *girq; + struct resource iomem; + int err, i; + const struct of_device_id *match; +@@ -1135,33 +1135,38 @@ static int bcm2835_pinctrl_probe(struct + raw_spin_lock_init(&pc->irq_lock[i]); + } + +- girq = &pc->gpio_chip.irq; +- girq->chip = &bcm2835_gpio_irq_chip; +- girq->parent_handler = bcm2835_gpio_irq_handler; +- girq->num_parents = BCM2835_NUM_IRQS; +- girq->parents = devm_kcalloc(dev, BCM2835_NUM_IRQS, +- sizeof(*girq->parents), +- GFP_KERNEL); +- if (!girq->parents) +- return -ENOMEM; +- /* +- * Use the same handler for all groups: this is necessary +- * since we use one gpiochip to cover all lines - the +- * irq handler then needs to figure out which group and +- * bank that was firing the IRQ and look up the per-group +- * and bank data. +- */ +- for (i = 0; i < BCM2835_NUM_IRQS; i++) +- girq->parents[i] = irq_of_parse_and_map(np, i); +- girq->default_type = IRQ_TYPE_NONE; +- girq->handler = handle_level_irq; +- + err = gpiochip_add_data(&pc->gpio_chip, pc); + if (err) { + dev_err(dev, "could not add GPIO chip\n"); + return err; + } + ++ err = gpiochip_irqchip_add(&pc->gpio_chip, &bcm2835_gpio_irq_chip, ++ 0, handle_level_irq, IRQ_TYPE_NONE); ++ if (err) { ++ dev_info(dev, "could not add irqchip\n"); ++ return err; ++ } ++ ++ for (i = 0; i < BCM2835_NUM_IRQS; i++) { ++ pc->irq[i] = irq_of_parse_and_map(np, i); ++ ++ if (pc->irq[i] == 0) ++ continue; ++ ++ /* ++ * Use the same handler for all groups: this is necessary ++ * since we use one gpiochip to cover all lines - the ++ * irq handler then needs to figure out which group and ++ * bank that was firing the IRQ and look up the per-group ++ * and bank data. ++ */ ++ gpiochip_set_chained_irqchip(&pc->gpio_chip, ++ &bcm2835_gpio_irq_chip, ++ pc->irq[i], ++ bcm2835_gpio_irq_handler); ++ } ++ + match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node); + if (match) { + bcm2835_pinctrl_desc.confops = |