Commit 45fe0b53 authored by Linus Walleij's avatar Linus Walleij

Merge tag 'gpio-fixes-for-v5.10-rc3' of...

Merge tag 'gpio-fixes-for-v5.10-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into fixes

gpio fixes for v5.10-rc3

- fix missing conversion to gpiolib irqchip in gpio-dwapb
- fix bank properties for ast2600 variant in gpio-aspeed
- make sysfs work again when the character device is disabled
- fix interrupt handling in gpio-pcie-idio-24
parents 7ffa0816 10a2f11d
......@@ -1114,6 +1114,7 @@ static const struct aspeed_gpio_config ast2500_config =
static const struct aspeed_bank_props ast2600_bank_props[] = {
/* input output */
{4, 0xffffffff, 0x00ffffff}, /* Q/R/S/T */
{5, 0xffffffff, 0xffffff00}, /* U/V/W/X */
{6, 0x0000ffff, 0x0000ffff}, /* Y/Z */
{ },
......
......@@ -343,8 +343,8 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
#ifdef CONFIG_PM_SLEEP
static int dwapb_irq_set_wake(struct irq_data *d, unsigned int enable)
{
struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = igc->private;
struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
struct dwapb_gpio *gpio = to_dwapb_gpio(gc);
struct dwapb_context *ctx = gpio->ports[0].ctx;
irq_hw_number_t bit = irqd_to_hwirq(d);
......
......@@ -28,6 +28,47 @@
#include <linux/spinlock.h>
#include <linux/types.h>
/*
* PLX PEX8311 PCI LCS_INTCSR Interrupt Control/Status
*
* Bit: Description
* 0: Enable Interrupt Sources (Bit 0)
* 1: Enable Interrupt Sources (Bit 1)
* 2: Generate Internal PCI Bus Internal SERR# Interrupt
* 3: Mailbox Interrupt Enable
* 4: Power Management Interrupt Enable
* 5: Power Management Interrupt
* 6: Slave Read Local Data Parity Check Error Enable
* 7: Slave Read Local Data Parity Check Error Status
* 8: Internal PCI Wire Interrupt Enable
* 9: PCI Express Doorbell Interrupt Enable
* 10: PCI Abort Interrupt Enable
* 11: Local Interrupt Input Enable
* 12: Retry Abort Enable
* 13: PCI Express Doorbell Interrupt Active
* 14: PCI Abort Interrupt Active
* 15: Local Interrupt Input Active
* 16: Local Interrupt Output Enable
* 17: Local Doorbell Interrupt Enable
* 18: DMA Channel 0 Interrupt Enable
* 19: DMA Channel 1 Interrupt Enable
* 20: Local Doorbell Interrupt Active
* 21: DMA Channel 0 Interrupt Active
* 22: DMA Channel 1 Interrupt Active
* 23: Built-In Self-Test (BIST) Interrupt Active
* 24: Direct Master was the Bus Master during a Master or Target Abort
* 25: DMA Channel 0 was the Bus Master during a Master or Target Abort
* 26: DMA Channel 1 was the Bus Master during a Master or Target Abort
* 27: Target Abort after internal 256 consecutive Master Retrys
* 28: PCI Bus wrote data to LCS_MBOX0
* 29: PCI Bus wrote data to LCS_MBOX1
* 30: PCI Bus wrote data to LCS_MBOX2
* 31: PCI Bus wrote data to LCS_MBOX3
*/
#define PLX_PEX8311_PCI_LCS_INTCSR 0x68
#define INTCSR_INTERNAL_PCI_WIRE BIT(8)
#define INTCSR_LOCAL_INPUT BIT(11)
/**
* struct idio_24_gpio_reg - GPIO device registers structure
* @out0_7: Read: FET Outputs 0-7
......@@ -92,6 +133,7 @@ struct idio_24_gpio_reg {
struct idio_24_gpio {
struct gpio_chip chip;
raw_spinlock_t lock;
__u8 __iomem *plx;
struct idio_24_gpio_reg __iomem *reg;
unsigned long irq_mask;
};
......@@ -334,13 +376,13 @@ static void idio_24_irq_mask(struct irq_data *data)
unsigned long flags;
const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
unsigned char new_irq_mask;
const unsigned long bank_offset = bit_offset/8 * 8;
const unsigned long bank_offset = bit_offset / 8;
unsigned char cos_enable_state;
raw_spin_lock_irqsave(&idio24gpio->lock, flags);
idio24gpio->irq_mask &= BIT(bit_offset);
new_irq_mask = idio24gpio->irq_mask >> bank_offset;
idio24gpio->irq_mask &= ~BIT(bit_offset);
new_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
if (!new_irq_mask) {
cos_enable_state = ioread8(&idio24gpio->reg->cos_enable);
......@@ -363,12 +405,12 @@ static void idio_24_irq_unmask(struct irq_data *data)
unsigned long flags;
unsigned char prev_irq_mask;
const unsigned long bit_offset = irqd_to_hwirq(data) - 24;
const unsigned long bank_offset = bit_offset/8 * 8;
const unsigned long bank_offset = bit_offset / 8;
unsigned char cos_enable_state;
raw_spin_lock_irqsave(&idio24gpio->lock, flags);
prev_irq_mask = idio24gpio->irq_mask >> bank_offset;
prev_irq_mask = idio24gpio->irq_mask >> bank_offset * 8;
idio24gpio->irq_mask |= BIT(bit_offset);
if (!prev_irq_mask) {
......@@ -455,6 +497,7 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
struct device *const dev = &pdev->dev;
struct idio_24_gpio *idio24gpio;
int err;
const size_t pci_plx_bar_index = 1;
const size_t pci_bar_index = 2;
const char *const name = pci_name(pdev);
struct gpio_irq_chip *girq;
......@@ -469,12 +512,13 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
return err;
}
err = pcim_iomap_regions(pdev, BIT(pci_bar_index), name);
err = pcim_iomap_regions(pdev, BIT(pci_plx_bar_index) | BIT(pci_bar_index), name);
if (err) {
dev_err(dev, "Unable to map PCI I/O addresses (%d)\n", err);
return err;
}
idio24gpio->plx = pcim_iomap_table(pdev)[pci_plx_bar_index];
idio24gpio->reg = pcim_iomap_table(pdev)[pci_bar_index];
idio24gpio->chip.label = name;
......@@ -504,6 +548,12 @@ static int idio_24_probe(struct pci_dev *pdev, const struct pci_device_id *id)
/* Software board reset */
iowrite8(0, &idio24gpio->reg->soft_reset);
/*
* enable PLX PEX8311 internal PCI wire interrupt and local interrupt
* input
*/
iowrite8((INTCSR_INTERNAL_PCI_WIRE | INTCSR_LOCAL_INPUT) >> 8,
idio24gpio->plx + PLX_PEX8311_PCI_LCS_INTCSR + 1);
err = devm_gpiochip_add_data(dev, &idio24gpio->chip, idio24gpio);
if (err) {
......
......@@ -7,22 +7,7 @@
struct gpio_device;
#ifdef CONFIG_GPIO_CDEV
int gpiolib_cdev_register(struct gpio_device *gdev, dev_t devt);
void gpiolib_cdev_unregister(struct gpio_device *gdev);
#else
static inline int gpiolib_cdev_register(struct gpio_device *gdev, dev_t devt)
{
return 0;
}
static inline void gpiolib_cdev_unregister(struct gpio_device *gdev)
{
}
#endif /* CONFIG_GPIO_CDEV */
#endif /* GPIOLIB_CDEV_H */
......@@ -480,11 +480,23 @@ static void gpiodevice_release(struct device *dev)
kfree(gdev);
}
#ifdef CONFIG_GPIO_CDEV
#define gcdev_register(gdev, devt) gpiolib_cdev_register((gdev), (devt))
#define gcdev_unregister(gdev) gpiolib_cdev_unregister((gdev))
#else
/*
* gpiolib_cdev_register() indirectly calls device_add(), which is still
* required even when cdev is not selected.
*/
#define gcdev_register(gdev, devt) device_add(&(gdev)->dev)
#define gcdev_unregister(gdev) device_del(&(gdev)->dev)
#endif
static int gpiochip_setup_dev(struct gpio_device *gdev)
{
int ret;
ret = gpiolib_cdev_register(gdev, gpio_devt);
ret = gcdev_register(gdev, gpio_devt);
if (ret)
return ret;
......@@ -500,7 +512,7 @@ static int gpiochip_setup_dev(struct gpio_device *gdev)
return 0;
err_remove_device:
gpiolib_cdev_unregister(gdev);
gcdev_unregister(gdev);
return ret;
}
......@@ -825,7 +837,7 @@ void gpiochip_remove(struct gpio_chip *gc)
* be removed, else it will be dangling until the last user is
* gone.
*/
gpiolib_cdev_unregister(gdev);
gcdev_unregister(gdev);
put_device(&gdev->dev);
}
EXPORT_SYMBOL_GPL(gpiochip_remove);
......
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