forked from Openwrt/openwrt
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>
118 lines
3.7 KiB
Diff
118 lines
3.7 KiB
Diff
From 2c6ef57c11137c07d5961c3dda2021e0403628ae Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.com>
|
|
Date: Fri, 6 Oct 2023 16:30:35 +0100
|
|
Subject: [PATCH 0661/1085] gpio: brcmstb: Use dynamic GPIO base numbers
|
|
|
|
Forcing a gpiochip to have a fixed base number now leads to a warning
|
|
message. Remove the need to do so by calculating hwirq numbers based
|
|
on bank numbers.
|
|
|
|
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
|
|
Fixes: 3b0213d56eb7 ("gpio: Add GPIO support for Broadcom STB SoCs")
|
|
---
|
|
drivers/gpio/gpio-brcmstb.c | 21 ++++++++++-----------
|
|
1 file changed, 10 insertions(+), 11 deletions(-)
|
|
|
|
--- a/drivers/gpio/gpio-brcmstb.c
|
|
+++ b/drivers/gpio/gpio-brcmstb.c
|
|
@@ -50,7 +50,6 @@ struct brcmstb_gpio_priv {
|
|
struct irq_domain *irq_domain;
|
|
struct irq_chip irq_chip;
|
|
int parent_irq;
|
|
- int gpio_base;
|
|
int num_gpios;
|
|
int parent_wake_irq;
|
|
};
|
|
@@ -92,7 +91,7 @@ brcmstb_gpio_get_active_irqs(struct brcm
|
|
static int brcmstb_gpio_hwirq_to_offset(irq_hw_number_t hwirq,
|
|
struct brcmstb_gpio_bank *bank)
|
|
{
|
|
- return hwirq - (bank->gc.base - bank->parent_priv->gpio_base);
|
|
+ return hwirq - bank->id * 32;
|
|
}
|
|
|
|
static void brcmstb_gpio_set_imask(struct brcmstb_gpio_bank *bank,
|
|
@@ -117,8 +116,9 @@ static void brcmstb_gpio_set_imask(struc
|
|
static int brcmstb_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
|
|
{
|
|
struct brcmstb_gpio_priv *priv = brcmstb_gpio_gc_to_priv(gc);
|
|
+ struct brcmstb_gpio_bank *bank = gpiochip_get_data(gc);
|
|
/* gc_offset is relative to this gpio_chip; want real offset */
|
|
- int hwirq = offset + (gc->base - priv->gpio_base);
|
|
+ int hwirq = offset + bank->id * 32;
|
|
|
|
if (hwirq >= priv->num_gpios)
|
|
return -ENXIO;
|
|
@@ -263,7 +263,7 @@ static void brcmstb_gpio_irq_bank_handle
|
|
{
|
|
struct brcmstb_gpio_priv *priv = bank->parent_priv;
|
|
struct irq_domain *domain = priv->irq_domain;
|
|
- int hwbase = bank->gc.base - priv->gpio_base;
|
|
+ int hwbase = bank->id * 32;
|
|
unsigned long status;
|
|
|
|
while ((status = brcmstb_gpio_get_active_irqs(bank))) {
|
|
@@ -414,7 +414,7 @@ static int brcmstb_gpio_of_xlate(struct
|
|
if (WARN_ON(gpiospec->args_count < gc->of_gpio_n_cells))
|
|
return -EINVAL;
|
|
|
|
- offset = gpiospec->args[0] - (gc->base - priv->gpio_base);
|
|
+ offset = gpiospec->args[0] - bank->id * 32;
|
|
if (offset >= gc->ngpio || offset < 0)
|
|
return -EINVAL;
|
|
|
|
@@ -598,8 +598,8 @@ static int brcmstb_gpio_probe(struct pla
|
|
const __be32 *p;
|
|
u32 bank_width;
|
|
int num_banks = 0;
|
|
+ int num_gpios = 0;
|
|
int err;
|
|
- static int gpio_base;
|
|
unsigned long flags = 0;
|
|
bool need_wakeup_event = false;
|
|
|
|
@@ -613,7 +613,6 @@ static int brcmstb_gpio_probe(struct pla
|
|
if (IS_ERR(reg_base))
|
|
return PTR_ERR(reg_base);
|
|
|
|
- priv->gpio_base = gpio_base;
|
|
priv->reg_base = reg_base;
|
|
priv->pdev = pdev;
|
|
|
|
@@ -655,7 +654,7 @@ static int brcmstb_gpio_probe(struct pla
|
|
dev_dbg(dev, "Width 0 found: Empty bank @ %d\n",
|
|
num_banks);
|
|
num_banks++;
|
|
- gpio_base += MAX_GPIO_PER_BANK;
|
|
+ num_gpios += MAX_GPIO_PER_BANK;
|
|
continue;
|
|
}
|
|
|
|
@@ -697,7 +696,7 @@ static int brcmstb_gpio_probe(struct pla
|
|
err = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
- gc->base = gpio_base;
|
|
+ gc->base = -1;
|
|
gc->of_gpio_n_cells = 2;
|
|
gc->of_xlate = brcmstb_gpio_of_xlate;
|
|
/* not all ngpio lines are valid, will use bank width later */
|
|
@@ -721,7 +720,7 @@ static int brcmstb_gpio_probe(struct pla
|
|
bank->id);
|
|
goto fail;
|
|
}
|
|
- gpio_base += gc->ngpio;
|
|
+ num_gpios += gc->ngpio;
|
|
|
|
dev_dbg(dev, "bank=%d, base=%d, ngpio=%d, width=%d\n", bank->id,
|
|
gc->base, gc->ngpio, bank->width);
|
|
@@ -732,7 +731,7 @@ static int brcmstb_gpio_probe(struct pla
|
|
num_banks++;
|
|
}
|
|
|
|
- priv->num_gpios = gpio_base - priv->gpio_base;
|
|
+ priv->num_gpios = num_gpios;
|
|
if (priv->parent_irq > 0) {
|
|
err = brcmstb_gpio_irq_setup(pdev, priv);
|
|
if (err)
|