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| author | Christophe Ricard <christophe.ricard@gmail.com> | 2016-04-30 09:12:36 +0200 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2016-05-04 01:27:24 +0200 |
| commit | de72dbc52c4141a6e3f31796499908d00816ad2e (patch) | |
| tree | c8a57cc6b9410660af11abc4bbc205a664ffb8b9 /drivers/nfc | |
| parent | c1fc9136c8b353e853065c2a8a736cdcf6081dcd (diff) | |
| download | linux-de72dbc52c4141a6e3f31796499908d00816ad2e.tar.bz2 | |
nfc: st-nci: spi: Change ST_NCI_GPIO_NAME_RESET to match DT
Since
commit 10cf4899f8af ("gpiolib: tighten up ACPI legacy gpio lookups")
If _DSD properties are available in an ACPI node, we are not
allowed to fallback to _CRS data to retrieve gpio properties.
This was causing us to fail if uicc-present and/or ese-present
are defined.
To be consistent with devicetree change ST_NCI_GPIO_NAME_RESET
content to reset so that acpi_find_gpio in drivers/gpio/gpiolib.c
will look for reset-gpios. In the mean time the ACPI table needs
to be fixed as follow (Tested on Minnowboard Max):
Device (NFC1)
{
Name (_ADR, Zero) // _ADR: Address
Name (_HID, "SMO2101") // _HID: Hardware ID
Name (_CID, "SMO2101") // _CID: Compatible ID
Name (_DDN, "SMO NFC") // _DDN: DOS Device Name
Name (_UID, One) // _UID: Unique ID
Method (_CRS, 0, NotSerialized) // _CRS: Current Resource Settings
{
Name (SBUF, ResourceTemplate ()
{
SpiSerialBus (0, PolarityLow, FourWireMode, 8,
ControllerInitiated, 4000000, ClockPolarityLow,
ClockPhaseFirst, "\\_SB.SPI1",
0x00, ResourceConsumer, ,)
GpioInt (Edge, ActiveHigh, ExclusiveAndWake, PullNone, 0x0000,
"\\_SB.GPO2", 0x00, ResourceConsumer, ,)
{ // Pin list
0x0001
}
GpioIo (Exclusive, PullDefault, 0x0000, 0x0000, IoRestrictionOutputOnly,
"\\_SB.GPO2", 0x00, ResourceConsumer, ,)
{ // Pin list
0x0002,
}
})
Name (_DSD, Package (0x02)
{
ToUUID ("daffd814-6eba-4d8c-8a91-bc9bbf4aa301") /* Device Properties for _DSD */,
Package (0x03)
{
Package (0x02) { "uicc-present", 1 },
Package (0x02) { "ese-present", 1 },
Package (0x02) { "reset-gpios", Package(0x04) { ^NFC1, 1, 0, 0} },
}
})
Return (SBUF) /* \_SB_.SPI1.NFC1._CRS.SBUF */
}
Method (_STA, 0, NotSerialized) // _STA: Status
{
Return (0x0F)
}
}
Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/nfc')
| -rw-r--r-- | drivers/nfc/st-nci/spi.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nfc/st-nci/spi.c b/drivers/nfc/st-nci/spi.c index 821dfa950fa8..e015015c5dc9 100644 --- a/drivers/nfc/st-nci/spi.c +++ b/drivers/nfc/st-nci/spi.c @@ -43,7 +43,7 @@ #define ST_NCI_SPI_DRIVER_NAME "st_nci_spi" -#define ST_NCI_GPIO_NAME_RESET "clf_reset" +#define ST_NCI_GPIO_NAME_RESET "reset" struct st_nci_spi_phy { struct spi_device *spi_dev; |