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bcm27xx: remove obsolete patches (#8851)

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Co-authored-by: W_Y_CPP <383152993@qq.com>
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Beginner 2022-02-09 23:51:13 +08:00 committed by GitHub
parent b411b69a1d
commit a55219d051
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3 changed files with 0 additions and 235 deletions
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40
target/linux/bcm27xx/patches-5.4/950-0316-pinctrl-bcm2835-Add-support-for-BCM2711-pull-up-func.patch
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@ -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);

107
target/linux/bcm27xx/patches-5.4/950-0328-Revert-pinctrl-bcm2835-Pass-irqchip-when-adding-gpio.patch
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@ -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 =

88
target/linux/bcm27xx/patches-5.4/950-0362-pinctrl-bcm2835-Change-init-order-for-gpio-hogs.patch
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@ -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;
}