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8c405cdccc
The patches were generated from the RPi repo with the following command: git format-patch v6.6.34..rpi-6.1.y Some patches needed rebasing and, as usual, the applied and reverted, wireless drivers, Github workflows, READMEs and defconfigs patches were removed. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
53 lines
1.6 KiB
Diff
53 lines
1.6 KiB
Diff
From 086480cc43b9d967647b237a84623b27b8850a64 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Wed, 3 Apr 2024 23:16:47 +0100
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Subject: [PATCH 1008/1085] pinctrl: rp1: Support interrupt CPU affinity
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See: https://github.com/raspberrypi/linux/issues/6077
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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drivers/pinctrl/pinctrl-rp1.c | 24 ++++++++++++++++++++++++
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1 file changed, 24 insertions(+)
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--- a/drivers/pinctrl/pinctrl-rp1.c
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+++ b/drivers/pinctrl/pinctrl-rp1.c
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@@ -894,6 +894,29 @@ static void rp1_gpio_irq_ack(struct irq_
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writel(RP1_GPIO_CTRL_IRQRESET, pin->gpio + RP1_SET_OFFSET + RP1_GPIO_CTRL);
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}
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+static int rp1_gpio_irq_set_affinity(struct irq_data *data, const struct cpumask *dest, bool force)
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+{
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+ struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
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+ struct rp1_pinctrl *pc = gpiochip_get_data(chip);
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+ const struct rp1_iobank_desc *bank;
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+ struct irq_data *parent_data = NULL;
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+ int i;
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+
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+ for (i = 0; i < 3; i++) {
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+ bank = &rp1_iobanks[i];
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+ if (data->hwirq >= bank->min_gpio &&
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+ data->hwirq < bank->min_gpio + bank->num_gpios) {
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+ parent_data = irq_get_irq_data(pc->irq[i]);
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+ break;
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+ }
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+ }
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+
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+ if (parent_data && parent_data->chip->irq_set_affinity)
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+ return parent_data->chip->irq_set_affinity(parent_data, dest, force);
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+
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+ return -EINVAL;
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+}
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+
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static struct irq_chip rp1_gpio_irq_chip = {
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.name = MODULE_NAME,
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.irq_enable = rp1_gpio_irq_enable,
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@@ -902,6 +925,7 @@ static struct irq_chip rp1_gpio_irq_chip
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.irq_ack = rp1_gpio_irq_ack,
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.irq_mask = rp1_gpio_irq_disable,
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.irq_unmask = rp1_gpio_irq_enable,
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+ .irq_set_affinity = rp1_gpio_irq_set_affinity,
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.flags = IRQCHIP_IMMUTABLE,
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};
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