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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.patch107
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 =