bcm27xx: remove obsolete patches (#8851)

Co-authored-by: W_Y_CPP <383152993@qq.com>

target/linux/bcm27xx/patches-5.4/950-0316-pinctrl-bcm2835-Add-support-for-BCM2711-pull-up-func.patch

@@ -1,40 +0,0 @@
-From cf658ebc86b3e22c0b77e136fbbf19b580c7c256 Mon Sep 17 00:00:00 2001
-From: Stefan Wahren <wahrenst@gmx.net>
-Date: Sun, 21 Jul 2019 16:01:36 +0200
-Subject: [PATCH] pinctrl: bcm2835: Add support for BCM2711 pull-up
- functionality
-
-commit e38a9a437fb93ddafab5030165e4c6a3a5021669 upstream.
-
-The BCM2711 has a new way of selecting the pull-up/pull-down setting
-for a GPIO pin. The registers used for the BCM2835, GP_PUD and
-GP_PUDCLKn0, are no longer connected. A new set of registers,
-GP_GPIO_PUP_PDN_CNTRL_REGx must be used. This commit will add
-a new compatible string "brcm,bcm2711-gpio" and the kernel
-driver will use it to select which method is used to select
-pull-up/pull-down.
-
-This patch based on a patch by Al Cooper which was intended for the
-BCM7211. This is a bugfixed and improved version.
-
-Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
-Acked-by: Eric Anholt <eric@anholt.net>
----
- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 6 ++++++
- 1 file changed, 6 insertions(+)
-
---- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
-+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
-@@ -1168,6 +1168,12 @@ static int bcm2835_pinctrl_probe(struct
- 			(const struct pinconf_ops *)match->data;
- 	}
- 
-+	match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
-+	if (match) {
-+		bcm2835_pinctrl_desc.confops =
-+			(const struct pinconf_ops *)match->data;
-+	}
-+
- 	pc->pctl_dev = devm_pinctrl_register(dev, &bcm2835_pinctrl_desc, pc);
- 	if (IS_ERR(pc->pctl_dev)) {
- 		gpiochip_remove(&pc->gpio_chip);

target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch

@@ -1,107 +0,0 @@
-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 =

target/linux/bcm27xx/patches-5.4/950-0362-pinctrl-bcm2835-Change-init-order-for-gpio-hogs.patch

@@ -1,88 +0,0 @@
-From 27cb8bf0442f677380a1df93b93b7589b7ce5243 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Mon, 6 Jan 2020 14:05:42 +0000
-Subject: [PATCH] pinctrl: bcm2835: Change init order for gpio hogs
-
-pinctrl-bcm2835 is a combined pinctrl/gpio driver. Currently the gpio
-side is registered first, but this breaks gpio hogs (which are
-configured during gpiochip_add_data). Part of the hog initialisation
-is a call to pinctrl_gpio_request, and since the pinctrl driver hasn't
-yet been registered this results in an -EPROBE_DEFER from which it can
-never recover.
-
-Change the initialisation sequence to register the pinctrl driver
-first.
-
-See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=260600
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- drivers/pinctrl/bcm/pinctrl-bcm2835.c | 40 ++++++++++++---------------
- 1 file changed, 17 insertions(+), 23 deletions(-)
-
---- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
-+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
-@@ -1135,9 +1135,25 @@ static int bcm2835_pinctrl_probe(struct
- 		raw_spin_lock_init(&pc->irq_lock[i]);
- 	}
- 
-+	match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
-+	if (match) {
-+		bcm2835_pinctrl_desc.confops =
-+			(const struct pinconf_ops *)match->data;
-+	}
-+
-+	pc->pctl_dev = devm_pinctrl_register(dev, &bcm2835_pinctrl_desc, pc);
-+	if (IS_ERR(pc->pctl_dev))
-+		return PTR_ERR(pc->pctl_dev);
-+
-+	pc->gpio_range = bcm2835_pinctrl_gpio_range;
-+	pc->gpio_range.base = pc->gpio_chip.base;
-+	pc->gpio_range.gc = &pc->gpio_chip;
-+	pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
-+
- 	err = devm_gpiochip_add_data(dev, &pc->gpio_chip, pc);
- 	if (err) {
- 		dev_err(dev, "could not add GPIO chip\n");
-+		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
- 		return err;
- 	}
- 
-@@ -1145,6 +1161,7 @@ static int bcm2835_pinctrl_probe(struct
- 				   0, handle_level_irq, IRQ_TYPE_NONE);
- 	if (err) {
- 		dev_info(dev, "could not add irqchip\n");
-+		pinctrl_remove_gpio_range(pc->pctl_dev, &pc->gpio_range);
- 		return err;
- 	}
- 
-@@ -1167,29 +1184,6 @@ static int bcm2835_pinctrl_probe(struct
- 					     bcm2835_gpio_irq_handler);
- 	}
- 
--	match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
--	if (match) {
--		bcm2835_pinctrl_desc.confops =
--			(const struct pinconf_ops *)match->data;
--	}
--
--	match = of_match_node(bcm2835_pinctrl_match, pdev->dev.of_node);
--	if (match) {
--		bcm2835_pinctrl_desc.confops =
--			(const struct pinconf_ops *)match->data;
--	}
--
--	pc->pctl_dev = devm_pinctrl_register(dev, &bcm2835_pinctrl_desc, pc);
--	if (IS_ERR(pc->pctl_dev)) {
--		gpiochip_remove(&pc->gpio_chip);
--		return PTR_ERR(pc->pctl_dev);
--	}
--
--	pc->gpio_range = bcm2835_pinctrl_gpio_range;
--	pc->gpio_range.base = pc->gpio_chip.base;
--	pc->gpio_range.gc = &pc->gpio_chip;
--	pinctrl_add_gpio_range(pc->pctl_dev, &pc->gpio_range);
--
- 	return 0;
- }
-