Merge tag 'devicetree-for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- update changeset documentation on locking to reflect current code
- fix alphabetizing of vendor-prefixes.txt
- add various vendor prefixes
- add ESP8089 WiFi binding
- add new variable sized array parsing functions
* tag 'devicetree-for-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (21 commits)
DT: irqchip: renesas-irqc: document R8A7743/5 support
dt-bindings: Add Keith&Koep vendor prefix
dt-bindings: add vendor prefix for Auvidea GmbH
of: Add vendor prefix for Engicam s.r.l company
devicetree: Add vendor-prefix for Silead Inc.
devicetree: bindings: Add vendor prefix for Topeet.
dt-bindings: Add summit vendor id
of/platform: Initialise dev->fwnode appropriately
of: Add array read functions with min/max size limits
of: Make of_find_property_value_of_size take a length range
dt: net: enhance DWC EQoS binding to support Tegra186
bindings: PCI: artpec: correct pci binding example
Documentation: devicetree: Fix max77693 spelling errors
dt: bindings: Add binding for ESP8089 wifi chips
PCI: Xilinx NWL PCIe: Updating device tree documentation with prefetchable memory space
Documentation: devicetree: spi: fix wrong spi-bus documentation
dt-bindings: Add Japan Display Inc vendor id
dt-bindings: vendor-prefixes: Add Sierra Wireless
devicetree: Add vendor prefix for Shenzhen Sunchip Technology Co., Ltd
devicetree: Sort vendor prefixes in alphabetical order
...
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
index ae5054c..e3f052d 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
@@ -1,10 +1,12 @@
-DT bindings for the R-Mobile/R-Car interrupt controller
+DT bindings for the R-Mobile/R-Car/RZ/G interrupt controller
Required properties:
- compatible: has to be "renesas,irqc-<soctype>", "renesas,irqc" as fallback.
Examples with soctypes are:
- "renesas,irqc-r8a73a4" (R-Mobile APE6)
+ - "renesas,irqc-r8a7743" (RZ/G1M)
+ - "renesas,irqc-r8a7745" (RZ/G1E)
- "renesas,irqc-r8a7790" (R-Car H2)
- "renesas,irqc-r8a7791" (R-Car M2-W)
- "renesas,irqc-r8a7792" (R-Car V2H)
diff --git a/Documentation/devicetree/bindings/mfd/max77693.txt b/Documentation/devicetree/bindings/mfd/max77693.txt
index d342584..6a1ae3a 100644
--- a/Documentation/devicetree/bindings/mfd/max77693.txt
+++ b/Documentation/devicetree/bindings/mfd/max77693.txt
@@ -17,28 +17,28 @@
- interrupt-parent : The parent interrupt controller.
Optional properties:
-- regulators : The regulators of max77693 have to be instantiated under subnod
+- regulators : The regulators of max77693 have to be instantiated under subnode
named "regulators" using the following format.
regulators {
- regualtor-compatible = ESAFEOUT1/ESAFEOUT2/CHARGER
- standard regulator constratints[*].
+ regulator-compatible = ESAFEOUT1/ESAFEOUT2/CHARGER
+ standard regulator constraints[*].
};
[*] refer Documentation/devicetree/bindings/regulator/regulator.txt
- haptic : The MAX77693 haptic device utilises a PWM controlled motor to provide
users with tactile feedback. PWM period and duty-cycle are varied in
- order to provide the approprite level of feedback.
+ order to provide the appropriate level of feedback.
Required properties:
- - compatible : Must be "maxim,max77693-hpatic"
+ - compatible : Must be "maxim,max77693-haptic"
- haptic-supply : power supply for the haptic motor
[*] refer Documentation/devicetree/bindings/regulator/regulator.txt
- pwms : phandle to the physical PWM(Pulse Width Modulation) device.
PWM properties should be named "pwms". And number of cell is different
for each pwm device.
- To get more informations, please refer to documentaion.
+ To get more information, please refer to documentation.
[*] refer Documentation/devicetree/bindings/pwm/pwm.txt
- charger : Node configuring the charger driver.
diff --git a/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt b/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt
index 51f8d2e..d93f71c 100644
--- a/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt
+++ b/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt
@@ -1,21 +1,111 @@
* Synopsys DWC Ethernet QoS IP version 4.10 driver (GMAC)
+This binding supports the Synopsys Designware Ethernet QoS (Quality Of Service)
+IP block. The IP supports multiple options for bus type, clocking and reset
+structure, and feature list. Consequently, a number of properties and list
+entries in properties are marked as optional, or only required in specific HW
+configurations.
Required properties:
-- compatible: Should be "snps,dwc-qos-ethernet-4.10"
+- compatible: One of:
+ - "axis,artpec6-eqos", "snps,dwc-qos-ethernet-4.10"
+ Represents the IP core when integrated into the Axis ARTPEC-6 SoC.
+ - "nvidia,tegra186-eqos", "snps,dwc-qos-ethernet-4.10"
+ Represents the IP core when integrated into the NVIDIA Tegra186 SoC.
+ - "snps,dwc-qos-ethernet-4.10"
+ This combination is deprecated. It should be treated as equivalent to
+ "axis,artpec6-eqos", "snps,dwc-qos-ethernet-4.10". It is supported to be
+ compatible with earlier revisions of this binding.
- reg: Address and length of the register set for the device
-- clocks: Phandles to the reference clock and the bus clock
-- clock-names: Should be "phy_ref_clk" for the reference clock and "apb_pclk"
- for the bus clock.
+- clocks: Phandle and clock specifiers for each entry in clock-names, in the
+ same order. See ../clock/clock-bindings.txt.
+- clock-names: May contain any/all of the following depending on the IP
+ configuration, in any order:
+ - "tx"
+ The EQOS transmit path clock. The HW signal name is clk_tx_i.
+ In some configurations (e.g. GMII/RGMII), this clock also drives the PHY TX
+ path. In other configurations, other clocks (such as tx_125, rmii) may
+ drive the PHY TX path.
+ - "rx"
+ The EQOS receive path clock. The HW signal name is clk_rx_i.
+ In some configurations (e.g. GMII/RGMII), this clock is derived from the
+ PHY's RX clock output. In other configurations, other clocks (such as
+ rx_125, rmii) may drive the EQOS RX path.
+ In cases where the PHY clock is directly fed into the EQOS receive path
+ without intervening logic, the DT need not represent this clock, since it
+ is assumed to be fully under the control of the PHY device/driver. In
+ cases where SoC integration adds additional logic to this path, such as a
+ SW-controlled clock gate, this clock should be represented in DT.
+ - "slave_bus"
+ The CPU/slave-bus (CSR) interface clock. This applies to any bus type;
+ APB, AHB, AXI, etc. The HW signal name is hclk_i (AHB) or clk_csr_i (other
+ buses).
+ - "master_bus"
+ The master bus interface clock. Only required in configurations that use a
+ separate clock for the master and slave bus interfaces. The HW signal name
+ is hclk_i (AHB) or aclk_i (AXI).
+ - "ptp_ref"
+ The PTP reference clock. The HW signal name is clk_ptp_ref_i.
+ - "phy_ref_clk"
+ This clock is deprecated and should not be used by new compatible values.
+ It is equivalent to "tx".
+ - "apb_pclk"
+ This clock is deprecated and should not be used by new compatible values.
+ It is equivalent to "slave_bus".
+
+ Note: Support for additional IP configurations may require adding the
+ following clocks to this list in the future: clk_rx_125_i, clk_tx_125_i,
+ clk_pmarx_0_i, clk_pmarx1_i, clk_rmii_i, clk_revmii_rx_i, clk_revmii_tx_i.
+ Configurations exist where multiple similar clocks are used at once, e.g. all
+ of clk_rx_125_i, clk_pmarx_0_i, clk_pmarx1_i. For this reason it is best to
+ extend the binding with a separate clock-names entry for each of those RX
+ clocks, rather than repurposing the existing "rx" clock-names entry as a
+ generic/logical clock in a similar fashion to "master_bus" and "slave_bus".
+ This will allow easy support for configurations that support multiple PHY
+ interfaces using a mux, and hence need to have explicit control over
+ specific RX clocks.
+
+ The following compatible values require the following set of clocks:
+ - "nvidia,tegra186-eqos", "snps,dwc-qos-ethernet-4.10":
+ - "slave_bus"
+ - "master_bus"
+ - "rx"
+ - "tx"
+ - "ptp_ref"
+ - "axis,artpec6-eqos", "snps,dwc-qos-ethernet-4.10":
+ - "slave_bus"
+ - "master_bus"
+ - "tx"
+ - "ptp_ref"
+ - "snps,dwc-qos-ethernet-4.10" (deprecated):
+ - "phy_ref_clk"
+ - "apb_clk"
- interrupt-parent: Should be the phandle for the interrupt controller
that services interrupts for this device
- interrupts: Should contain the core's combined interrupt signal
- phy-mode: See ethernet.txt file in the same directory
+- resets: Phandle and reset specifiers for each entry in reset-names, in the
+ same order. See ../reset/reset.txt.
+- reset-names: May contain any/all of the following depending on the IP
+ configuration, in any order:
+ - "eqos". The reset to the entire module. The HW signal name is hreset_n
+ (AHB) or aresetn_i (AXI).
+
+ The following compatible values require the following set of resets:
+ (the reset properties may be omitted if empty)
+ - "nvidia,tegra186-eqos", "snps,dwc-qos-ethernet-4.10":
+ - "eqos".
+ - "axis,artpec6-eqos", "snps,dwc-qos-ethernet-4.10":
+ - None.
+ - "snps,dwc-qos-ethernet-4.10" (deprecated):
+ - None.
Optional properties:
- dma-coherent: Present if dma operations are coherent
- mac-address: See ethernet.txt in the same directory
- local-mac-address: See ethernet.txt in the same directory
+- phy-reset-gpios: Phandle and specifier for any GPIO used to reset the PHY.
+ See ../gpio/gpio.txt.
- snps,en-lpi: If present it enables use of the AXI low-power interface
- snps,write-requests: Number of write requests that the AXI port can issue.
It depends on the SoC configuration.
@@ -52,6 +142,7 @@
reg = <0x40010000 0x4000>;
phy-handle = <&phy2>;
phy-mode = "gmii";
+ phy-reset-gpios = <&gpioctlr 43 GPIO_ACTIVE_LOW>;
snps,en-tx-lpi-clockgating;
snps,en-lpi;
diff --git a/Documentation/devicetree/bindings/net/wireless/esp,esp8089.txt b/Documentation/devicetree/bindings/net/wireless/esp,esp8089.txt
new file mode 100644
index 0000000..19331bb
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/esp,esp8089.txt
@@ -0,0 +1,31 @@
+Espressif ESP8089 wireless SDIO devices
+
+This node provides properties for controlling the ESP8089 wireless device.
+The node is expected to be specified as a child node to the SDIO controller
+that connects the device to the system.
+
+Required properties:
+
+ - compatible : Should be "esp,esp8089".
+
+Optional properties:
+ - esp,crystal-26M-en: Integer value for the crystal_26M_en firmware parameter
+
+Example:
+
+&mmc1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ vmmc-supply = <®_dldo1>;
+ mmc-pwrseq = <&wifi_pwrseq>;
+ bus-width = <4>;
+ non-removable;
+ status = "okay";
+
+ esp8089: sdio_wifi@1 {
+ compatible = "esp,esp8089";
+ reg = <1>;
+ esp,crystal-26M-en = <2>;
+ };
+};
diff --git a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
index 330a45b..5ecaea1 100644
--- a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
@@ -24,16 +24,17 @@
compatible = "axis,artpec6-pcie", "snps,dw-pcie";
reg = <0xf8050000 0x2000
0xf8040000 0x1000
- 0xc0000000 0x1000>;
+ 0xc0000000 0x2000>;
reg-names = "dbi", "phy", "config";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
/* downstream I/O */
- ranges = <0x81000000 0 0x00010000 0xc0010000 0 0x00010000
+ ranges = <0x81000000 0 0 0xc0002000 0 0x00010000
/* non-prefetchable memory */
- 0x82000000 0 0xc0020000 0xc0020000 0 0x1ffe0000>;
+ 0x82000000 0 0xc0012000 0xc0012000 0 0x1ffee000>;
num-lanes = <2>;
+ bus-range = <0x00 0xff>;
interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
interrupt-names = "msi";
#interrupt-cells = <1>;
diff --git a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
index 337fc97..3259798a1 100644
--- a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
@@ -55,9 +55,10 @@
msi-parent = <&nwl_pcie>;
reg = <0x0 0xfd0e0000 0x0 0x1000>,
<0x0 0xfd480000 0x0 0x1000>,
- <0x0 0xe0000000 0x0 0x1000000>;
+ <0x80 0x00000000 0x0 0x1000000>;
reg-names = "breg", "pcireg", "cfg";
- ranges = <0x02000000 0x00000000 0xe1000000 0x00000000 0xe1000000 0 0x0f000000>;
+ ranges = <0x02000000 0x00000000 0xe0000000 0x00000000 0xe0000000 0x00000000 0x10000000 /* non-prefetchable memory */
+ 0x43000000 0x00000006 0x00000000 0x00000006 0x00000000 0x00000002 0x00000000>;/* prefetchable memory */
pcie_intc: legacy-interrupt-controller {
interrupt-controller;
diff --git a/Documentation/devicetree/bindings/spi/spi-bus.txt b/Documentation/devicetree/bindings/spi/spi-bus.txt
index 1782286..4b1d6e7 100644
--- a/Documentation/devicetree/bindings/spi/spi-bus.txt
+++ b/Documentation/devicetree/bindings/spi/spi-bus.txt
@@ -31,7 +31,7 @@
So if for example the controller has 2 CS lines, and the cs-gpios
property looks like this:
-cs-gpios = <&gpio1 0 0> <0> <&gpio1 1 0> <&gpio1 2 0>;
+cs-gpios = <&gpio1 0 0>, <0>, <&gpio1 1 0>, <&gpio1 2 0>;
Then it should be configured so that num_chipselect = 4 with the
following mapping:
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 1992aa9..851e2ca 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -3,8 +3,8 @@
This isn't an exhaustive list, but you should add new prefixes to it before
using them to avoid name-space collisions.
-abilis Abilis Systems
abcn Abracon Corporation
+abilis Abilis Systems
active-semi Active-Semi International Inc
ad Avionic Design GmbH
adapteva Adapteva, Inc.
@@ -36,6 +36,7 @@
atlas Atlas Scientific LLC
atmel Atmel Corporation
auo AU Optronics Corporation
+auvidea Auvidea GmbH
avago Avago Technologies
avic Shanghai AVIC Optoelectronics Co., Ltd.
axis Axis Communications AB
@@ -85,6 +86,7 @@
embest Shenzhen Embest Technology Co., Ltd.
emmicro EM Microelectronic
energymicro Silicon Laboratories (formerly Energy Micro AS)
+engicam Engicam S.r.l.
epcos EPCOS AG
epfl Ecole Polytechnique Fédérale de Lausanne
epson Seiko Epson Corp.
@@ -101,8 +103,8 @@
fsl Freescale Semiconductor
ge General Electric Company
geekbuying GeekBuying
-GEFanuc GE Fanuc Intelligent Platforms Embedded Systems, Inc.
gef GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+GEFanuc GE Fanuc Intelligent Platforms Embedded Systems, Inc.
geniatech Geniatech, Inc.
giantplus Giantplus Technology Co., Ltd.
globalscale Globalscale Technologies, Inc.
@@ -126,7 +128,6 @@
ibm International Business Machines (IBM)
idt Integrated Device Technologies, Inc.
ifi Ingenieurburo Fur Ic-Technologie (I/F/I)
-iom Iomega Corporation
img Imagination Technologies Ltd.
infineon Infineon Technologies
inforce Inforce Computing
@@ -135,11 +136,14 @@
intel Intel Corporation
intercontrol Inter Control Group
invensense InvenSense Inc.
+iom Iomega Corporation
isee ISEE 2007 S.L.
isil Intersil
issi Integrated Silicon Solutions Inc.
+jdi Japan Display Inc.
jedec JEDEC Solid State Technology Association
karo Ka-Ro electronics GmbH
+keithkoep Keith & Koep GmbH
keymile Keymile GmbH
kinetic Kinetic Technologies
kosagi Sutajio Ko-Usagi PTE Ltd.
@@ -149,8 +153,8 @@
lenovo Lenovo Group Ltd.
lg LG Corporation
linux Linux-specific binding
-lsi LSI Corp. (LSI Logic)
lltc Linear Technology Corporation
+lsi LSI Corp. (LSI Logic)
marvell Marvell Technology Group Ltd.
maxim Maxim Integrated Products
meas Measurement Specialties
@@ -190,20 +194,20 @@
ontat On Tat Industrial Company
opencores OpenCores.org
option Option NV
+ORCL Oracle Corporation
ortustech Ortus Technology Co., Ltd.
ovti OmniVision Technologies
-ORCL Oracle Corporation
oxsemi Oxford Semiconductor, Ltd.
panasonic Panasonic Corporation
parade Parade Technologies Inc.
pericom Pericom Technology Inc.
phytec PHYTEC Messtechnik GmbH
picochip Picochip Ltd
+pixcir PIXCIR MICROELECTRONICS Co., Ltd
plathome Plat'Home Co., Ltd.
plda PLDA
-pixcir PIXCIR MICROELECTRONICS Co., Ltd
-pulsedlight PulsedLight, Inc
powervr PowerVR (deprecated, use img)
+pulsedlight PulsedLight, Inc
qca Qualcomm Atheros, Inc.
qcom Qualcomm Technologies, Inc
qemu QEMU, a generic and open source machine emulator and virtualizer
@@ -231,12 +235,13 @@
sharp Sharp Corporation
si-en Si-En Technology Ltd.
sigma Sigma Designs, Inc.
+sii Seiko Instruments, Inc.
sil Silicon Image
silabs Silicon Laboratories
+silead Silead Inc.
+silergy Silergy Corp.
siliconmitus Silicon Mitus, Inc.
simtek
-sii Seiko Instruments, Inc.
-silergy Silergy Corp.
sirf SiRF Technology, Inc.
sis Silicon Integrated Systems Corp.
sitronix Sitronix Technology Corporation
@@ -254,9 +259,12 @@
startek Startek
ste ST-Ericsson
stericsson ST-Ericsson
+summit Summit microelectronics
+sunchip Shenzhen Sunchip Technology Co., Ltd
+SUNW Sun Microsystems, Inc
+swir Sierra Wireless
syna Synaptics Inc.
synology Synology, Inc.
-SUNW Sun Microsystems, Inc
tbs TBS Technologies
tcg Trusted Computing Group
tcl Toby Churchill Ltd.
@@ -265,17 +273,18 @@
thine THine Electronics, Inc.
ti Texas Instruments
tlm Trusted Logic Mobility
+topeet Topeet
toradex Toradex AG
toshiba Toshiba Corporation
toumaz Toumaz
-tplink TP-LINK Technologies Co., Ltd.
tpk TPK U.S.A. LLC
+tplink TP-LINK Technologies Co., Ltd.
tronfy Tronfy
tronsmart Tronsmart
truly Truly Semiconductors Limited
tyan Tyan Computer Corporation
-upisemi uPI Semiconductor Corp.
uniwest United Western Technologies Corp (UniWest)
+upisemi uPI Semiconductor Corp.
urt United Radiant Technology Corporation
usi Universal Scientific Industrial Co., Ltd.
v3 V3 Semiconductor
@@ -293,7 +302,7 @@
xes Extreme Engineering Solutions (X-ES)
xillybus Xillybus Ltd.
xlnx Xilinx
-zyxel ZyXEL Communications Corp.
zarlink Zarlink Semiconductor
zii Zodiac Inflight Innovations
zte ZTE Corp.
+zyxel ZyXEL Communications Corp.
diff --git a/Documentation/devicetree/changesets.txt b/Documentation/devicetree/changesets.txt
index 935ba5a..cb488ee 100644
--- a/Documentation/devicetree/changesets.txt
+++ b/Documentation/devicetree/changesets.txt
@@ -21,20 +21,11 @@
All the change operations are recorded in the of_changeset 'entries'
list.
-3. mutex_lock(of_mutex) - starts a changeset; The global of_mutex
-ensures there can only be one editor at a time.
-
-4. of_changeset_apply() - Apply the changes to the tree. Either the
+3. of_changeset_apply() - Apply the changes to the tree. Either the
entire changeset will get applied, or if there is an error the tree will
-be restored to the previous state
-
-5. mutex_unlock(of_mutex) - All operations complete, release the mutex
+be restored to the previous state. The core ensures proper serialization
+through locking. An unlocked version __of_changeset_apply is available,
+if needed.
If a successfully applied changeset needs to be removed, it can be done
-with the following sequence.
-
-1. mutex_lock(of_mutex)
-
-2. of_changeset_revert()
-
-3. mutex_unlock(of_mutex)
+with of_changeset_revert().
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 3ce6953..a0bccb5 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1146,16 +1146,18 @@
*
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
- * @len: requested length of property value
+ * @min: minimum allowed length of property value
+ * @max: maximum allowed length of property value (0 means unlimited)
+ * @len: if !=NULL, actual length is written to here
*
* Search for a property in a device node and valid the requested size.
* Returns the property value on success, -EINVAL if the property does not
* exist, -ENODATA if property does not have a value, and -EOVERFLOW if the
- * property data isn't large enough.
+ * property data is too small or too large.
*
*/
static void *of_find_property_value_of_size(const struct device_node *np,
- const char *propname, u32 len)
+ const char *propname, u32 min, u32 max, size_t *len)
{
struct property *prop = of_find_property(np, propname, NULL);
@@ -1163,8 +1165,13 @@
return ERR_PTR(-EINVAL);
if (!prop->value)
return ERR_PTR(-ENODATA);
- if (len > prop->length)
+ if (prop->length < min)
return ERR_PTR(-EOVERFLOW);
+ if (max && prop->length > max)
+ return ERR_PTR(-EOVERFLOW);
+
+ if (len)
+ *len = prop->length;
return prop->value;
}
@@ -1189,7 +1196,9 @@
u32 index, u32 *out_value)
{
const u32 *val = of_find_property_value_of_size(np, propname,
- ((index + 1) * sizeof(*out_value)));
+ ((index + 1) * sizeof(*out_value)),
+ 0,
+ NULL);
if (IS_ERR(val))
return PTR_ERR(val);
@@ -1200,102 +1209,145 @@
EXPORT_SYMBOL_GPL(of_property_read_u32_index);
/**
- * of_property_read_u8_array - Find and read an array of u8 from a property.
+ * of_property_read_variable_u8_array - Find and read an array of u8 from a
+ * property, with bounds on the minimum and maximum array size.
*
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
* @out_values: pointer to return value, modified only if return value is 0.
- * @sz: number of array elements to read
+ * @sz_min: minimum number of array elements to read
+ * @sz_max: maximum number of array elements to read, if zero there is no
+ * upper limit on the number of elements in the dts entry but only
+ * sz_min will be read.
*
* Search for a property in a device node and read 8-bit value(s) from
- * it. Returns 0 on success, -EINVAL if the property does not exist,
- * -ENODATA if property does not have a value, and -EOVERFLOW if the
- * property data isn't large enough.
+ * it. Returns number of elements read on success, -EINVAL if the property
+ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
+ * if the property data is smaller than sz_min or longer than sz_max.
*
* dts entry of array should be like:
* property = /bits/ 8 <0x50 0x60 0x70>;
*
* The out_values is modified only if a valid u8 value can be decoded.
*/
-int of_property_read_u8_array(const struct device_node *np,
- const char *propname, u8 *out_values, size_t sz)
+int of_property_read_variable_u8_array(const struct device_node *np,
+ const char *propname, u8 *out_values,
+ size_t sz_min, size_t sz_max)
{
+ size_t sz, count;
const u8 *val = of_find_property_value_of_size(np, propname,
- (sz * sizeof(*out_values)));
+ (sz_min * sizeof(*out_values)),
+ (sz_max * sizeof(*out_values)),
+ &sz);
if (IS_ERR(val))
return PTR_ERR(val);
- while (sz--)
+ if (!sz_max)
+ sz = sz_min;
+ else
+ sz /= sizeof(*out_values);
+
+ count = sz;
+ while (count--)
*out_values++ = *val++;
- return 0;
+
+ return sz;
}
-EXPORT_SYMBOL_GPL(of_property_read_u8_array);
+EXPORT_SYMBOL_GPL(of_property_read_variable_u8_array);
/**
- * of_property_read_u16_array - Find and read an array of u16 from a property.
+ * of_property_read_variable_u16_array - Find and read an array of u16 from a
+ * property, with bounds on the minimum and maximum array size.
*
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
* @out_values: pointer to return value, modified only if return value is 0.
- * @sz: number of array elements to read
+ * @sz_min: minimum number of array elements to read
+ * @sz_max: maximum number of array elements to read, if zero there is no
+ * upper limit on the number of elements in the dts entry but only
+ * sz_min will be read.
*
* Search for a property in a device node and read 16-bit value(s) from
- * it. Returns 0 on success, -EINVAL if the property does not exist,
- * -ENODATA if property does not have a value, and -EOVERFLOW if the
- * property data isn't large enough.
+ * it. Returns number of elements read on success, -EINVAL if the property
+ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
+ * if the property data is smaller than sz_min or longer than sz_max.
*
* dts entry of array should be like:
* property = /bits/ 16 <0x5000 0x6000 0x7000>;
*
* The out_values is modified only if a valid u16 value can be decoded.
*/
-int of_property_read_u16_array(const struct device_node *np,
- const char *propname, u16 *out_values, size_t sz)
+int of_property_read_variable_u16_array(const struct device_node *np,
+ const char *propname, u16 *out_values,
+ size_t sz_min, size_t sz_max)
{
+ size_t sz, count;
const __be16 *val = of_find_property_value_of_size(np, propname,
- (sz * sizeof(*out_values)));
+ (sz_min * sizeof(*out_values)),
+ (sz_max * sizeof(*out_values)),
+ &sz);
if (IS_ERR(val))
return PTR_ERR(val);
- while (sz--)
+ if (!sz_max)
+ sz = sz_min;
+ else
+ sz /= sizeof(*out_values);
+
+ count = sz;
+ while (count--)
*out_values++ = be16_to_cpup(val++);
- return 0;
+
+ return sz;
}
-EXPORT_SYMBOL_GPL(of_property_read_u16_array);
+EXPORT_SYMBOL_GPL(of_property_read_variable_u16_array);
/**
- * of_property_read_u32_array - Find and read an array of 32 bit integers
- * from a property.
+ * of_property_read_variable_u32_array - Find and read an array of 32 bit
+ * integers from a property, with bounds on the minimum and maximum array size.
*
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
* @out_values: pointer to return value, modified only if return value is 0.
- * @sz: number of array elements to read
+ * @sz_min: minimum number of array elements to read
+ * @sz_max: maximum number of array elements to read, if zero there is no
+ * upper limit on the number of elements in the dts entry but only
+ * sz_min will be read.
*
* Search for a property in a device node and read 32-bit value(s) from
- * it. Returns 0 on success, -EINVAL if the property does not exist,
- * -ENODATA if property does not have a value, and -EOVERFLOW if the
- * property data isn't large enough.
+ * it. Returns number of elements read on success, -EINVAL if the property
+ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
+ * if the property data is smaller than sz_min or longer than sz_max.
*
* The out_values is modified only if a valid u32 value can be decoded.
*/
-int of_property_read_u32_array(const struct device_node *np,
+int of_property_read_variable_u32_array(const struct device_node *np,
const char *propname, u32 *out_values,
- size_t sz)
+ size_t sz_min, size_t sz_max)
{
+ size_t sz, count;
const __be32 *val = of_find_property_value_of_size(np, propname,
- (sz * sizeof(*out_values)));
+ (sz_min * sizeof(*out_values)),
+ (sz_max * sizeof(*out_values)),
+ &sz);
if (IS_ERR(val))
return PTR_ERR(val);
- while (sz--)
+ if (!sz_max)
+ sz = sz_min;
+ else
+ sz /= sizeof(*out_values);
+
+ count = sz;
+ while (count--)
*out_values++ = be32_to_cpup(val++);
- return 0;
+
+ return sz;
}
-EXPORT_SYMBOL_GPL(of_property_read_u32_array);
+EXPORT_SYMBOL_GPL(of_property_read_variable_u32_array);
/**
* of_property_read_u64 - Find and read a 64 bit integer from a property
@@ -1314,7 +1366,9 @@
u64 *out_value)
{
const __be32 *val = of_find_property_value_of_size(np, propname,
- sizeof(*out_value));
+ sizeof(*out_value),
+ 0,
+ NULL);
if (IS_ERR(val))
return PTR_ERR(val);
@@ -1325,38 +1379,51 @@
EXPORT_SYMBOL_GPL(of_property_read_u64);
/**
- * of_property_read_u64_array - Find and read an array of 64 bit integers
- * from a property.
+ * of_property_read_variable_u64_array - Find and read an array of 64 bit
+ * integers from a property, with bounds on the minimum and maximum array size.
*
* @np: device node from which the property value is to be read.
* @propname: name of the property to be searched.
* @out_values: pointer to return value, modified only if return value is 0.
- * @sz: number of array elements to read
+ * @sz_min: minimum number of array elements to read
+ * @sz_max: maximum number of array elements to read, if zero there is no
+ * upper limit on the number of elements in the dts entry but only
+ * sz_min will be read.
*
* Search for a property in a device node and read 64-bit value(s) from
- * it. Returns 0 on success, -EINVAL if the property does not exist,
- * -ENODATA if property does not have a value, and -EOVERFLOW if the
- * property data isn't large enough.
+ * it. Returns number of elements read on success, -EINVAL if the property
+ * does not exist, -ENODATA if property does not have a value, and -EOVERFLOW
+ * if the property data is smaller than sz_min or longer than sz_max.
*
* The out_values is modified only if a valid u64 value can be decoded.
*/
-int of_property_read_u64_array(const struct device_node *np,
+int of_property_read_variable_u64_array(const struct device_node *np,
const char *propname, u64 *out_values,
- size_t sz)
+ size_t sz_min, size_t sz_max)
{
+ size_t sz, count;
const __be32 *val = of_find_property_value_of_size(np, propname,
- (sz * sizeof(*out_values)));
+ (sz_min * sizeof(*out_values)),
+ (sz_max * sizeof(*out_values)),
+ &sz);
if (IS_ERR(val))
return PTR_ERR(val);
- while (sz--) {
+ if (!sz_max)
+ sz = sz_min;
+ else
+ sz /= sizeof(*out_values);
+
+ count = sz;
+ while (count--) {
*out_values++ = of_read_number(val, 2);
val += 2;
}
- return 0;
+
+ return sz;
}
-EXPORT_SYMBOL_GPL(of_property_read_u64_array);
+EXPORT_SYMBOL_GPL(of_property_read_variable_u64_array);
/**
* of_property_read_string - Find and read a string from a property
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index f39ccd5..f811d27 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -142,6 +142,7 @@
}
dev->dev.of_node = of_node_get(np);
+ dev->dev.fwnode = &np->fwnode;
dev->dev.parent = parent ? : &platform_bus;
if (bus_id)
@@ -241,6 +242,7 @@
/* setup generic device info */
dev->dev.of_node = of_node_get(node);
+ dev->dev.fwnode = &node->fwnode;
dev->dev.parent = parent ? : &platform_bus;
dev->dev.platform_data = platform_data;
if (bus_id)
diff --git a/include/linux/of.h b/include/linux/of.h
index 3d9ff8e..299aeb1 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -291,20 +291,24 @@
extern int of_property_read_u32_index(const struct device_node *np,
const char *propname,
u32 index, u32 *out_value);
-extern int of_property_read_u8_array(const struct device_node *np,
- const char *propname, u8 *out_values, size_t sz);
-extern int of_property_read_u16_array(const struct device_node *np,
- const char *propname, u16 *out_values, size_t sz);
-extern int of_property_read_u32_array(const struct device_node *np,
- const char *propname,
- u32 *out_values,
- size_t sz);
+extern int of_property_read_variable_u8_array(const struct device_node *np,
+ const char *propname, u8 *out_values,
+ size_t sz_min, size_t sz_max);
+extern int of_property_read_variable_u16_array(const struct device_node *np,
+ const char *propname, u16 *out_values,
+ size_t sz_min, size_t sz_max);
+extern int of_property_read_variable_u32_array(const struct device_node *np,
+ const char *propname,
+ u32 *out_values,
+ size_t sz_min,
+ size_t sz_max);
extern int of_property_read_u64(const struct device_node *np,
const char *propname, u64 *out_value);
-extern int of_property_read_u64_array(const struct device_node *np,
- const char *propname,
- u64 *out_values,
- size_t sz);
+extern int of_property_read_variable_u64_array(const struct device_node *np,
+ const char *propname,
+ u64 *out_values,
+ size_t sz_min,
+ size_t sz_max);
extern int of_property_read_string(const struct device_node *np,
const char *propname,
@@ -380,6 +384,122 @@
#define of_match_ptr(_ptr) (_ptr)
+/**
+ * of_property_read_u8_array - Find and read an array of u8 from a property.
+ *
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ * @out_values: pointer to return value, modified only if return value is 0.
+ * @sz: number of array elements to read
+ *
+ * Search for a property in a device node and read 8-bit value(s) from
+ * it. Returns 0 on success, -EINVAL if the property does not exist,
+ * -ENODATA if property does not have a value, and -EOVERFLOW if the
+ * property data isn't large enough.
+ *
+ * dts entry of array should be like:
+ * property = /bits/ 8 <0x50 0x60 0x70>;
+ *
+ * The out_values is modified only if a valid u8 value can be decoded.
+ */
+static inline int of_property_read_u8_array(const struct device_node *np,
+ const char *propname,
+ u8 *out_values, size_t sz)
+{
+ int ret = of_property_read_variable_u8_array(np, propname, out_values,
+ sz, 0);
+ if (ret >= 0)
+ return 0;
+ else
+ return ret;
+}
+
+/**
+ * of_property_read_u16_array - Find and read an array of u16 from a property.
+ *
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ * @out_values: pointer to return value, modified only if return value is 0.
+ * @sz: number of array elements to read
+ *
+ * Search for a property in a device node and read 16-bit value(s) from
+ * it. Returns 0 on success, -EINVAL if the property does not exist,
+ * -ENODATA if property does not have a value, and -EOVERFLOW if the
+ * property data isn't large enough.
+ *
+ * dts entry of array should be like:
+ * property = /bits/ 16 <0x5000 0x6000 0x7000>;
+ *
+ * The out_values is modified only if a valid u16 value can be decoded.
+ */
+static inline int of_property_read_u16_array(const struct device_node *np,
+ const char *propname,
+ u16 *out_values, size_t sz)
+{
+ int ret = of_property_read_variable_u16_array(np, propname, out_values,
+ sz, 0);
+ if (ret >= 0)
+ return 0;
+ else
+ return ret;
+}
+
+/**
+ * of_property_read_u32_array - Find and read an array of 32 bit integers
+ * from a property.
+ *
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ * @out_values: pointer to return value, modified only if return value is 0.
+ * @sz: number of array elements to read
+ *
+ * Search for a property in a device node and read 32-bit value(s) from
+ * it. Returns 0 on success, -EINVAL if the property does not exist,
+ * -ENODATA if property does not have a value, and -EOVERFLOW if the
+ * property data isn't large enough.
+ *
+ * The out_values is modified only if a valid u32 value can be decoded.
+ */
+static inline int of_property_read_u32_array(const struct device_node *np,
+ const char *propname,
+ u32 *out_values, size_t sz)
+{
+ int ret = of_property_read_variable_u32_array(np, propname, out_values,
+ sz, 0);
+ if (ret >= 0)
+ return 0;
+ else
+ return ret;
+}
+
+/**
+ * of_property_read_u64_array - Find and read an array of 64 bit integers
+ * from a property.
+ *
+ * @np: device node from which the property value is to be read.
+ * @propname: name of the property to be searched.
+ * @out_values: pointer to return value, modified only if return value is 0.
+ * @sz: number of array elements to read
+ *
+ * Search for a property in a device node and read 64-bit value(s) from
+ * it. Returns 0 on success, -EINVAL if the property does not exist,
+ * -ENODATA if property does not have a value, and -EOVERFLOW if the
+ * property data isn't large enough.
+ *
+ * The out_values is modified only if a valid u64 value can be decoded.
+ */
+static inline int of_property_read_u64_array(const struct device_node *np,
+ const char *propname,
+ u64 *out_values, size_t sz)
+{
+ int ret = of_property_read_variable_u64_array(np, propname, out_values,
+ sz, 0);
+ if (ret >= 0)
+ return 0;
+ else
+ return ret;
+}
+
/*
* struct property *prop;
* const __be32 *p;
