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authorChristophe Ricard <christophe.ricard@gmail.com>2016-04-30 09:12:36 +0200
committerSamuel Ortiz <sameo@linux.intel.com>2016-05-04 01:27:24 +0200
commitde72dbc52c4141a6e3f31796499908d00816ad2e (patch)
treec8a57cc6b9410660af11abc4bbc205a664ffb8b9 /drivers/nfc
parentc1fc9136c8b353e853065c2a8a736cdcf6081dcd (diff)
downloadlinux-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.c2
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;