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gpio: dwapb: convert device node to fwnode

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This patch converts device node to fwnode for dwapb driver, so
as to provide a unified fwnode for DT and ACPI bindings.

Tested-by: Alan Tull <delicious.quinoa@gmail.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Jiang Qiu <qiujiang@huawei.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Jiang Qiu 2016-04-28 17:32:02 +08:00 committed by Linus Walleij
parent e81591815d
commit 4ba8cfa79f
3 changed files with 19 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/gpio/gpio-dwapb.c
View File

@ -22,6 +22,7 @@
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/spinlock.h>
#include <linux/platform_data/gpio-dwapb.h>
#include <linux/slab.h>
@ -290,14 +291,14 @@ static void dwapb_configure_irqs(struct dwapb_gpio *gpio,
struct dwapb_port_property *pp)
{
struct gpio_chip *gc = &port->gc;
struct device_node *node = pp->node;
struct fwnode_handle *fwnode = pp->fwnode;
struct irq_chip_generic *irq_gc = NULL;
unsigned int hwirq, ngpio = gc->ngpio;
struct irq_chip_type *ct;
int err, i;
gpio->domain = irq_domain_add_linear(node, ngpio,
&irq_generic_chip_ops, gpio);
gpio->domain = irq_domain_create_linear(fwnode, ngpio,
&irq_generic_chip_ops, gpio);
if (!gpio->domain)
return;
@ -415,7 +416,7 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
}
#ifdef CONFIG_OF_GPIO
port->gc.of_node = pp->node;
port->gc.of_node = to_of_node(pp->fwnode);
#endif
port->gc.ngpio = pp->ngpio;
port->gc.base = pp->gpio_base;
@ -447,19 +448,15 @@ static void dwapb_gpio_unregister(struct dwapb_gpio *gpio)
}
static struct dwapb_platform_data *
dwapb_gpio_get_pdata_of(struct device *dev)
dwapb_gpio_get_pdata(struct device *dev)
{
struct device_node *node, *port_np;
struct fwnode_handle *fwnode;
struct dwapb_platform_data *pdata;
struct dwapb_port_property *pp;
int nports;
int i;
node = dev->of_node;
if (!IS_ENABLED(CONFIG_OF_GPIO) || !node)
return ERR_PTR(-ENODEV);
nports = of_get_child_count(node);
nports = device_get_child_node_count(dev);
if (nports == 0)
return ERR_PTR(-ENODEV);
@ -474,18 +471,18 @@ dwapb_gpio_get_pdata_of(struct device *dev)
pdata->nports = nports;
i = 0;
for_each_child_of_node(node, port_np) {
device_for_each_child_node(dev, fwnode) {
pp = &pdata->properties[i++];
pp->node = port_np;
pp->fwnode = fwnode;
if (of_property_read_u32(port_np, "reg", &pp->idx) ||
if (fwnode_property_read_u32(fwnode, "reg", &pp->idx) ||
pp->idx >= DWAPB_MAX_PORTS) {
dev_err(dev,
"missing/invalid port index for port%d\n", i);
return ERR_PTR(-EINVAL);
}
if (of_property_read_u32(port_np, "snps,nr-gpios",
if (fwnode_property_read_u32(fwnode, "snps,nr-gpios",
&pp->ngpio)) {
dev_info(dev,
"failed to get number of gpios for port%d\n",
@ -497,9 +494,10 @@ dwapb_gpio_get_pdata_of(struct device *dev)
* Only port A can provide interrupts in all configurations of
* the IP.
*/
if (pp->idx == 0 &&
of_property_read_bool(port_np, "interrupt-controller")) {
pp->irq = irq_of_parse_and_map(port_np, 0);
if (dev->of_node && pp->idx == 0 &&
fwnode_property_read_bool(fwnode,
"interrupt-controller")) {
pp->irq = irq_of_parse_and_map(to_of_node(fwnode), 0);
if (!pp->irq)
dev_warn(dev, "no irq for port%d\n", pp->idx);
}
@ -521,7 +519,7 @@ static int dwapb_gpio_probe(struct platform_device *pdev)
struct dwapb_platform_data *pdata = dev_get_platdata(dev);
if (!pdata) {
pdata = dwapb_gpio_get_pdata_of(dev);
pdata = dwapb_gpio_get_pdata(dev);
if (IS_ERR(pdata))
return PTR_ERR(pdata);
}

2
drivers/mfd/intel_quark_i2c_gpio.c
View File

@ -219,7 +219,7 @@ static int intel_quark_gpio_setup(struct pci_dev *pdev, struct mfd_cell *cell)
return -ENOMEM;
/* Set the properties for portA */
pdata->properties->node = NULL;
pdata->properties->fwnode = NULL;
pdata->properties->idx = 0;
pdata->properties->ngpio = INTEL_QUARK_MFD_NGPIO;
pdata->properties->gpio_base = INTEL_QUARK_MFD_GPIO_BASE;

2
include/linux/platform_data/gpio-dwapb.h
View File

@ -15,7 +15,7 @@
#define GPIO_DW_APB_H
struct dwapb_port_property {
struct device_node *node;
struct fwnode_handle *fwnode;
unsigned int idx;
unsigned int ngpio;
unsigned int gpio_base;