diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/gpio/gpio-mxc.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/gpio/gpio-mxc.c')
-rw-r--r-- | kernel/drivers/gpio/gpio-mxc.c | 43 |
1 files changed, 26 insertions, 17 deletions
diff --git a/kernel/drivers/gpio/gpio-mxc.c b/kernel/drivers/gpio/gpio-mxc.c index 9f7446a7a..6ea8df6c7 100644 --- a/kernel/drivers/gpio/gpio-mxc.c +++ b/kernel/drivers/gpio/gpio-mxc.c @@ -33,7 +33,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/module.h> -#include <asm-generic/bug.h> +#include <linux/bug.h> enum mxc_gpio_hwtype { IMX1_GPIO, /* runs on i.mx1 */ @@ -131,7 +131,7 @@ static struct mxc_gpio_hwdata *mxc_gpio_hwdata; #define GPIO_INT_FALL_EDGE (mxc_gpio_hwdata->fall_edge) #define GPIO_INT_BOTH_EDGES 0x4 -static struct platform_device_id mxc_gpio_devtype[] = { +static const struct platform_device_id mxc_gpio_devtype[] = { { .name = "imx1-gpio", .driver_data = IMX1_GPIO, @@ -272,11 +272,11 @@ static void mxc_gpio_irq_handler(struct mxc_gpio_port *port, u32 irq_stat) } /* MX1 and MX3 has one interrupt *per* gpio port */ -static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc) +static void mx3_gpio_irq_handler(struct irq_desc *desc) { u32 irq_stat; - struct mxc_gpio_port *port = irq_get_handler_data(irq); - struct irq_chip *chip = irq_get_chip(irq); + struct mxc_gpio_port *port = irq_desc_get_handler_data(desc); + struct irq_chip *chip = irq_desc_get_chip(desc); chained_irq_enter(chip, desc); @@ -288,11 +288,11 @@ static void mx3_gpio_irq_handler(u32 irq, struct irq_desc *desc) } /* MX2 has one interrupt *for all* gpio ports */ -static void mx2_gpio_irq_handler(u32 irq, struct irq_desc *desc) +static void mx2_gpio_irq_handler(struct irq_desc *desc) { u32 irq_msk, irq_stat; struct mxc_gpio_port *port; - struct irq_chip *chip = irq_get_chip(irq); + struct irq_chip *chip = irq_desc_get_chip(desc); chained_irq_enter(chip, desc); @@ -339,13 +339,15 @@ static int gpio_set_wake_irq(struct irq_data *d, u32 enable) return 0; } -static void __init mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base) +static int mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base) { struct irq_chip_generic *gc; struct irq_chip_type *ct; gc = irq_alloc_generic_chip("gpio-mxc", 1, irq_base, port->base, handle_level_irq); + if (!gc) + return -ENOMEM; gc->private = port; ct = gc->chip_types; @@ -354,11 +356,14 @@ static void __init mxc_gpio_init_gc(struct mxc_gpio_port *port, int irq_base) ct->chip.irq_unmask = irq_gc_mask_set_bit; ct->chip.irq_set_type = gpio_set_irq_type; ct->chip.irq_set_wake = gpio_set_wake_irq; + ct->chip.flags = IRQCHIP_MASK_ON_SUSPEND; ct->regs.ack = GPIO_ISR; ct->regs.mask = GPIO_IMR; irq_setup_generic_chip(gc, IRQ_MSK(32), IRQ_GC_INIT_NESTED_LOCK, IRQ_NOREQUEST, 0); + + return 0; } static void mxc_gpio_get_hw(struct platform_device *pdev) @@ -437,20 +442,20 @@ static int mxc_gpio_probe(struct platform_device *pdev) irq_set_chained_handler(port->irq, mx2_gpio_irq_handler); } else { /* setup one handler for each entry */ - irq_set_chained_handler(port->irq, mx3_gpio_irq_handler); - irq_set_handler_data(port->irq, port); - if (port->irq_high > 0) { + irq_set_chained_handler_and_data(port->irq, + mx3_gpio_irq_handler, port); + if (port->irq_high > 0) /* setup handler for GPIO 16 to 31 */ - irq_set_chained_handler(port->irq_high, - mx3_gpio_irq_handler); - irq_set_handler_data(port->irq_high, port); - } + irq_set_chained_handler_and_data(port->irq_high, + mx3_gpio_irq_handler, + port); } err = bgpio_init(&port->bgc, &pdev->dev, 4, port->base + GPIO_PSR, port->base + GPIO_DR, NULL, - port->base + GPIO_GDIR, NULL, 0); + port->base + GPIO_GDIR, NULL, + BGPIOF_READ_OUTPUT_REG_SET); if (err) goto out_bgio; @@ -476,12 +481,16 @@ static int mxc_gpio_probe(struct platform_device *pdev) } /* gpio-mxc can be a generic irq chip */ - mxc_gpio_init_gc(port, irq_base); + err = mxc_gpio_init_gc(port, irq_base); + if (err < 0) + goto out_irqdomain_remove; list_add_tail(&port->node, &mxc_gpio_ports); return 0; +out_irqdomain_remove: + irq_domain_remove(port->domain); out_irqdesc_free: irq_free_descs(irq_base, 32); out_gpiochip_remove: |