Merge tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of GPIO changes for the v4.13 series.

  Some administrativa:

  I have a slew of 8250 serial patches and the new IOT2040 serial+GPIO
  driver coming in through this tree, along with a whole bunch of Exar
  8250 fixes. These are ACKed by Greg and also hit drivers/platform/*
  where they are ACKed by Andy Shevchenko.

  Speaking about drivers/platform/* there is also a bunch of ACPI stuff
  coming through that route, again ACKed by Andy.

  The MCP23S08 changes are coming in here as well. You already have the
  commits in your tree, so this is just a result of sharing an immutable
  branch between pin control and GPIO.

  Core:
   - Export add/remove for lookup tables so that modules can export GPIO
     descriptor tables.
   - Handle GPIO sleep states: it is now possible to flag that a GPIO
     line may loose its state during suspend/resume of the system to
     save power. This is used in the Wolfson Micro Arizona driver.
   - ACPI-based GPIO was tightened up a lot around the edges.
   - Use bitmap_fill() to speed up a loop.

  New drivers:
   - Exar XRA1403 SPI-based GPIO.
   - MVEBU driver now supports Armada 7K and 8K.
   - LP87565 PMIC GPIO.
   - Renesas R-CAR R8A7743 (RZ/G1M).
   - The new IOT2040 8250 serial/GPIO also comes in through this
     changeset.

  Substantial driver changes:
   - Seriously fix the Exar 8250 GPIO portions to work.
   - The MCP23S08 was moved out to a pin control driver.
   - Convert MEVEBU to use regmap for register access.
   - Drop Vulcan support from the Broadcom driver.
   - Serious cleanup and improvement of the mockup driver, giving us a
     better test coverage.

  Misc:
   - Lots of janitorial clean up.
   - A bunch of documentation fixes"

* tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (70 commits)
  serial: exar: Add support for IOT2040 device
  gpio-exar/8250-exar: Make set of exported GPIOs configurable
  platform: Accept const properties
  serial: exar: Factor out platform hooks
  gpio-exar/8250-exar: Rearrange gpiochip parenthood
  gpio: exar: Fix iomap request
  gpio-exar/8250-exar: Do not even instantiate a GPIO device for Commtech cards
  serial: uapi: Add support for bus termination
  gpio: rcar: Add R8A7743 (RZ/G1M) support
  gpio: gpio-wcove: Fix GPIO control register offset calculation
  gpio: lp87565: Add support for GPIO
  gpio: dwapb: fix missing first irq for edgeboth irq type
  MAINTAINERS: Take maintainership for GPIO ACPI support
  gpio: exar: Fix reading of directions and values
  gpio: exar: Allocate resources on behalf of the platform device
  gpio-exar/8250-exar: Fix passing in of parent PCI device
  gpio: mockup: use devm_kcalloc() where applicable
  gpio: mockup: add myself as author
  gpio: mockup: improve the error message
  gpio: mockup: don't return magic numbers from probe()
  ...

1 files changed, 25 insertions, 13 deletions

diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index 4b717c699313..43d8ed577e70 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -15,10 +15,6 @@
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 #include <linux/kernel.h>
 #include <linux/acpi.h>
@@ -149,8 +145,8 @@ static int vendor_resource_matches(struct pnp_dev *dev,
             uuid_len == sizeof(match->data) &&
             memcmp(uuid, match->data, uuid_len) == 0) {
                 if (expected_len && expected_len != actual_len) {
-                        dev_err(&dev->dev, "wrong vendor descriptor size; "
-                                "expected %d, found %d bytes\n",
+                        dev_err(&dev->dev,
+                                "wrong vendor descriptor size; expected %d, found %d bytes\n",
                                 expected_len, actual_len);
                         return 0;
                 }
@@ -180,6 +176,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
         struct pnp_dev *dev = data;
         struct acpi_resource_dma *dma;
         struct acpi_resource_vendor_typed *vendor_typed;
+        struct acpi_resource_gpio *gpio;
         struct resource_win win = {{0}, 0};
         struct resource *r = &win.res;
         int i, flags;
@@ -203,13 +200,27 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
                          * one interrupt, we won't be able to re-encode it.
                          */
                         if (pnp_can_write(dev)) {
-                                dev_warn(&dev->dev, "multiple interrupts in "
-                                         "_CRS descriptor; configuration can't "
-                                         "be changed\n");
+                                dev_warn(&dev->dev,
+                                         "multiple interrupts in _CRS descriptor; configuration can't be changed\n");
                                 dev->capabilities &= ~PNP_WRITE;
                         }
                 }
                 return AE_OK;
+        } else if (acpi_gpio_get_irq_resource(res, &gpio)) {
+                /*
+                 * If the resource is GpioInt() type then extract the IRQ
+                 * from GPIO resource and fill it into IRQ resource type.
+                 */
+                i = acpi_dev_gpio_irq_get(dev->data, 0);
+                if (i >= 0) {
+                        flags = acpi_dev_irq_flags(gpio->triggering,
+                                                   gpio->polarity,
+                                                   gpio->sharable);
+                } else {
+                        flags = IORESOURCE_DISABLED;
+                }
+                pnp_add_irq_resource(dev, i, flags);
+                return AE_OK;
         } else if (r->flags & IORESOURCE_DISABLED) {
                 pnp_add_irq_resource(dev, 0, IORESOURCE_DISABLED);
                 return AE_OK;
@@ -331,8 +342,8 @@ static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
                         if (p->interrupts[i] < PNP_IRQ_NR)
                                 __set_bit(p->interrupts[i], map.bits);
                         else
-                                dev_err(&dev->dev, "ignoring IRQ %d option "
-                                        "(too large for %d entry bitmap)\n",
+                                dev_err(&dev->dev,
+                                        "ignoring IRQ %d option (too large for %d entry bitmap)\n",
                                         p->interrupts[i], PNP_IRQ_NR);
                 }
         }
@@ -933,8 +944,9 @@ int pnpacpi_encode_resources(struct pnp_dev *dev, struct acpi_buffer *buffer)
                 case ACPI_RESOURCE_TYPE_EXTENDED_ADDRESS64:
                 case ACPI_RESOURCE_TYPE_GENERIC_REGISTER:
                 default:        /* other type */
-                        dev_warn(&dev->dev, "can't encode unknown resource "
-                                 "type %d\n", resource->type);
+                        dev_warn(&dev->dev,
+                                 "can't encode unknown resource type %d\n",
+                                 resource->type);
                         return -EINVAL;
                 }
                 resource++;