[PATCH v3 1/2] gpio: designware: switch device node to fwnode

qiujiang
2016-02-24T12:23:16Z

This patch switch device node to fwnode in dwapb_port_property,
so as to apply a unified data structure for DT and ACPI.

This change also needs to be done in intel_quark_i2c_gpio driver,
since it depends on gpio-dwapb driver.

Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: qiujiang <qiujiang@huawei.com>
---
drivers/gpio/gpio-dwapb.c | 36 ++++++++++++++++----------------
drivers/mfd/intel_quark_i2c_gpio.c | 2 +-
include/linux/platform_data/gpio-dwapb.h | 2 +-
3 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 597de1e..0ebbdf1 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -290,14 +290,14 @@ 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 +415,7 @@ 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;
@@ -449,17 +449,16 @@ static void dwapb_gpio_unregister(struct dwapb_gpio *gpio)
static struct dwapb_platform_data *
dwapb_gpio_get_pdata_of(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)
+ if (!IS_ENABLED(CONFIG_OF_GPIO) || !(dev->of_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);

@@ -474,21 +473,21 @@ 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 %s\n",
- port_np->full_name);
+ to_of_node(fwnode)->full_name);
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 %s\n",
- port_np->full_name);
+ to_of_node(fwnode)->full_name);
pp->ngpio = 32;
}

@@ -497,17 +496,18 @@ dwapb_gpio_get_pdata_of(struct device *dev)
* the IP.
*/
if (pp->idx == 0 &&
- of_property_read_bool(port_np, "interrupt-controller")) {
- pp->irq = irq_of_parse_and_map(port_np, 0);
+ of_property_read_bool(to_of_node(fwnode),
+ "interrupt-controller")) {
+ pp->irq = irq_of_parse_and_map(to_of_node(fwnode), 0);
if (!pp->irq) {
dev_warn(dev, "no irq for bank %s\n",
- port_np->full_name);
+ to_of_node(fwnode)->full_name);
}
}

pp->irq_shared = false;
pp->gpio_base = -1;
- pp->name = port_np->full_name;
+ pp->name = to_of_node(fwnode)->full_name;
}

return pdata;
diff --git a/drivers/mfd/intel_quark_i2c_gpio.c b/drivers/mfd/intel_quark_i2c_gpio.c
index 0421374..265bd3c 100644
--- a/drivers/mfd/intel_quark_i2c_gpio.c
+++ b/drivers/mfd/intel_quark_i2c_gpio.c
@@ -227,7 +227,7 @@ 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->name = "intel-quark-x1000-gpio-portA";
pdata->properties->idx = 0;
pdata->properties->ngpio = INTEL_QUARK_MFD_NGPIO;
diff --git a/include/linux/platform_data/gpio-dwapb.h b/include/linux/platform_data/gpio-dwapb.h
index 28702c8..80954f2 100644
--- a/include/linux/platform_data/gpio-dwapb.h
+++ b/include/linux/platform_data/gpio-dwapb.h
@@ -15,7 +15,7 @@
#define GPIO_DW_APB_H

struct dwapb_port_property {
- struct device_node *node;
+ struct fwnode_handle *fwnode;
const char *name;
unsigned int idx;
unsigned int ngpio;
--
1.9.1