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devicetree/next changes queued for v3.3 merge window 

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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6

devicetree/next changes queued for v3.3 merge window

* tag 'devicetree-for-linus-20120104' of git://git.secretlab.ca/git/linux-2.6:
  ARM: prom.h: Fix build error by removing unneeded header file
  irq: check domain hwirq range for DT translate
  dt: add empty of_get_node/of_put_node functions
  of/pdt: fix section mismatch warning
  i2c-designware: add OF binding support
  dt/i2c: Enumerate some of the known trivial i2c devices
  dt: reform for_each_property to for_each_property_of_node
  ARM/of: allow *machine_desc.dt_compat to be const
  of/base: Take NULL string into account for property with multiple strings
  OF/device-tree: Add some entries to vendor-prefixes.txt

Fix up trivial add-add conflicts in include/linux/of.h
hifive-unleashed-5.1
Linus Torvalds 2012-01-07 12:18:52 -08:00
parent 2d51daaa61 c89810acbc
commit 02550d61f4
12 changed files with 125 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
Documentation/devicetree/bindings/i2c/i2c-designware.txt 100644
View File

@ -0,0 +1,22 @@
* Synopsys DesignWare I2C
Required properties :
- compatible : should be "snps,designware-i2c"
- reg : Offset and length of the register set for the device
- interrupts : <IRQ> where IRQ is the interrupt number.
Recommended properties :
- clock-frequency : desired I2C bus clock frequency in Hz.
Example :
i2c@f0000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "snps,designware-i2c";
reg = <0xf0000 0x1000>;
interrupts = <11>;
clock-frequency = <400000>;
};

58
Documentation/devicetree/bindings/i2c/trivial-devices.txt 100644
View File

@ -0,0 +1,58 @@
This is a list of trivial i2c devices that have simple device tree
bindings, consisting only of a compatible field, an address and
possibly an interrupt line.
If a device needs more specific bindings, such as properties to
describe some aspect of it, there needs to be a specific binding
document for it just like any other devices.
Compatible Vendor / Chip
========== =============
ad,ad7414 SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin
ad,adm9240 ADM9240: Complete System Hardware Monitor for uProcessor-Based Systems
adi,adt7461 +/-1C TDM Extended Temp Range I.C
adt7461 +/-1C TDM Extended Temp Range I.C
at,24c08 i2c serial eeprom (24cxx)
atmel,24c02 i2c serial eeprom (24cxx)
catalyst,24c32 i2c serial eeprom
dallas,ds1307 64 x 8, Serial, I2C Real-Time Clock
dallas,ds1338 I2C RTC with 56-Byte NV RAM
dallas,ds1339 I2C Serial Real-Time Clock
dallas,ds1340 I2C RTC with Trickle Charger
dallas,ds1374 I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
dallas,ds1631 High-Precision Digital Thermometer
dallas,ds1682 Total-Elapsed-Time Recorder with Alarm
dallas,ds1775 Tiny Digital Thermometer and Thermostat
dallas,ds3232 Extremely Accurate I²C RTC with Integrated Crystal and SRAM
dallas,ds4510 CPU Supervisor with Nonvolatile Memory and Programmable I/O
dallas,ds75 Digital Thermometer and Thermostat
dialog,da9053 DA9053: flexible system level PMIC with multicore support
epson,rx8025 High-Stability. I2C-Bus INTERFACE REAL TIME CLOCK MODULE
epson,rx8581 I2C-BUS INTERFACE REAL TIME CLOCK MODULE
fsl,mag3110 MAG3110: Xtrinsic High Accuracy, 3D Magnetometer
fsl,mc13892 MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51
fsl,mma8450 MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer
fsl,mpr121 MPR121: Proximity Capacitive Touch Sensor Controller
fsl,sgtl5000 SGTL5000: Ultra Low-Power Audio Codec
maxim,ds1050 5 Bit Programmable, Pulse-Width Modulator
maxim,max1237 Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
maxim,max6625 9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface
mc,rv3029c2 Real Time Clock Module with I2C-Bus
national,lm75 I2C TEMP SENSOR
national,lm80 Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
national,lm92 ±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
nxp,pca9556 Octal SMBus and I2C registered interface
nxp,pca9557 8-bit I2C-bus and SMBus I/O port with reset
nxp,pcf8563 Real-time clock/calendar
ovti,ov5642 OV5642: Color CMOS QSXGA (5-megapixel) Image Sensor with OmniBSI and Embedded TrueFocus
pericom,pt7c4338 Real-time Clock Module
plx,pex8648 48-Lane, 12-Port PCI Express Gen 2 (5.0 GT/s) Switch
ramtron,24c64 i2c serial eeprom (24cxx)
ricoh,rs5c372a I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
samsung,24ad0xd1 S524AD0XF1 (128K/256K-bit Serial EEPROM for Low Power)
st-micro,24c256 i2c serial eeprom (24cxx)
stm,m41t00 Serial Access TIMEKEEPER
stm,m41t62 Serial real-time clock (RTC) with alarm
stm,m41t80 M41T80 - SERIAL ACCESS RTC WITH ALARMS
ti,tsc2003 I2C Touch-Screen Controller

3
Documentation/devicetree/bindings/vendor-prefixes.txt
View File

@ -8,7 +8,9 @@ amcc Applied Micro Circuits Corporation (APM, formally AMCC)
apm Applied Micro Circuits Corporation (APM)
arm ARM Ltd.
atmel Atmel Corporation
cavium Cavium, Inc.
chrp Common Hardware Reference Platform
cortina Cortina Systems, Inc.
dallas Maxim Integrated Products (formerly Dallas Semiconductor)
denx Denx Software Engineering
epson Seiko Epson Corp.
@ -36,6 +38,7 @@ schindler Schindler
sil Silicon Image
simtek
sirf SiRF Technology, Inc.
st STMicroelectronics
stericsson ST-Ericsson
ti Texas Instruments
xlnx Xilinx

2
arch/arm/include/asm/mach/arch.h
View File

@ -19,7 +19,7 @@ struct machine_desc {
unsigned int nr; /* architecture number */
const char *name; /* architecture name */
unsigned long atag_offset; /* tagged list (relative) */
const char **dt_compat; /* array of device tree
const char *const *dt_compat; /* array of device tree
* 'compatible' strings */
unsigned int nr_irqs; /* number of IRQs */

1
arch/arm/include/asm/prom.h
View File

@ -13,7 +13,6 @@
#ifdef CONFIG_OF
#include <asm/setup.h>
#include <asm/irq.h>
extern struct machine_desc *setup_machine_fdt(unsigned int dt_phys);

12
drivers/i2c/busses/i2c-designware-platdrv.c
View File

@ -34,6 +34,7 @@
#include <linux/sched.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/of_i2c.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/slab.h>
@ -137,6 +138,7 @@ static int __devinit dw_i2c_probe(struct platform_device *pdev)
sizeof(adap->name));
adap->algo = &i2c_dw_algo;
adap->dev.parent = &pdev->dev;
adap->dev.of_node = pdev->dev.of_node;
adap->nr = pdev->id;
r = i2c_add_numbered_adapter(adap);
@ -144,6 +146,7 @@ static int __devinit dw_i2c_probe(struct platform_device *pdev)
dev_err(&pdev->dev, "failure adding adapter\n");
goto err_free_irq;
}
of_i2c_register_devices(adap);
return 0;
@ -187,6 +190,14 @@ static int __devexit dw_i2c_remove(struct platform_device *pdev)
return 0;
}
#ifdef CONFIG_OF
static const struct of_device_id dw_i2c_of_match[] = {
{ .compatible = "snps,designware-i2c", },
{},
};
MODULE_DEVICE_TABLE(of, dw_i2c_of_match);
#endif
/* work with hotplug and coldplug */
MODULE_ALIAS("platform:i2c_designware");
@ -195,6 +206,7 @@ static struct platform_driver dw_i2c_driver = {
.driver = {
.name = "i2c_designware",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(dw_i2c_of_match),
},
};

10
drivers/of/base.c
View File

@ -752,7 +752,7 @@ int of_property_read_string_index(struct device_node *np, const char *propname,
for (i = 0; total < prop->length; total += l, p += l) {
l = strlen(p) + 1;
if ((*p != 0) && (i++ == index)) {
if (i++ == index) {
*output = p;
return 0;
}
@ -790,11 +790,9 @@ int of_property_count_strings(struct device_node *np, const char *propname)
p = prop->value;
for (i = 0; total < prop->length; total += l, p += l) {
for (i = 0; total < prop->length; total += l, p += l, i++)
l = strlen(p) + 1;
if (*p != 0)
i++;
}
return i;
}
EXPORT_SYMBOL_GPL(of_property_count_strings);
@ -1163,7 +1161,7 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align))
if (!of_aliases)
return;
for_each_property(pp, of_aliases->properties) {
for_each_property_of_node(of_aliases, pp) {
const char *start = pp->name;
const char *end = start + strlen(start);
struct device_node *np;

5
drivers/of/fdt.c
View File

@ -18,6 +18,7 @@
#include <linux/errno.h>
#include <linux/slab.h>
#include <asm/setup.h> /* for COMMAND_LINE_SIZE */
#ifdef CONFIG_PPC
#include <asm/machdep.h>
#endif /* CONFIG_PPC */
@ -107,7 +108,7 @@ int of_fdt_is_compatible(struct boot_param_header *blob,
* of_fdt_match - Return true if node matches a list of compatible values
*/
int of_fdt_match(struct boot_param_header *blob, unsigned long node,
const char **compat)
const char *const *compat)
{
unsigned int tmp, score = 0;
@ -541,7 +542,7 @@ int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
/**
* of_flat_dt_match - Return true if node matches a list of compatible values
*/
int __init of_flat_dt_match(unsigned long node, const char **compat)
int __init of_flat_dt_match(unsigned long node, const char *const *compat)
{
return of_fdt_match(initial_boot_params, node, compat);
}

2
drivers/of/pdt.c
View File

@ -229,7 +229,7 @@ static struct device_node * __init of_pdt_build_tree(struct device_node *parent,
return ret;
}
static void *kernel_tree_alloc(u64 size, u64 align)
static void * __init kernel_tree_alloc(u64 size, u64 align)
{
return prom_early_alloc(size);
}

33
include/linux/of.h
View File

@ -72,6 +72,20 @@ struct of_phandle_args {
uint32_t args[MAX_PHANDLE_ARGS];
};
#if defined(CONFIG_SPARC) || !defined(CONFIG_OF)
/* Dummy ref counting routines - to be implemented later */
static inline struct device_node *of_node_get(struct device_node *node)
{
return node;
}
static inline void of_node_put(struct device_node *node)
{
}
#else
extern struct device_node *of_node_get(struct device_node *node);
extern void of_node_put(struct device_node *node);
#endif
#ifdef CONFIG_OF
/* Pointer for first entry in chain of all nodes. */
@ -102,21 +116,6 @@ static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
extern struct device_node *of_find_all_nodes(struct device_node *prev);
#if defined(CONFIG_SPARC)
/* Dummy ref counting routines - to be implemented later */
static inline struct device_node *of_node_get(struct device_node *node)
{
return node;
}
static inline void of_node_put(struct device_node *node)
{
}
#else
extern struct device_node *of_node_get(struct device_node *node);
extern void of_node_put(struct device_node *node);
#endif
/*
* OF address retrieval & translation
*/
@ -226,8 +225,8 @@ extern int of_device_is_available(const struct device_node *device);
extern const void *of_get_property(const struct device_node *node,
const char *name,
int *lenp);
#define for_each_property(pp, properties) \
for (pp = properties; pp != NULL; pp = pp->next)
#define for_each_property_of_node(dn, pp) \
for (pp = dn->properties; pp != NULL; pp = pp->next)
extern int of_n_addr_cells(struct device_node *np);
extern int of_n_size_cells(struct device_node *np);

4
include/linux/of_fdt.h
View File

@ -71,7 +71,7 @@ extern int of_fdt_is_compatible(struct boot_param_header *blob,
unsigned long node,
const char *compat);
extern int of_fdt_match(struct boot_param_header *blob, unsigned long node,
const char **compat);
const char *const *compat);
extern void of_fdt_unflatten_tree(unsigned long *blob,
struct device_node **mynodes);
@ -88,7 +88,7 @@ extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
extern void *of_get_flat_dt_prop(unsigned long node, const char *name,
unsigned long *size);
extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
extern int of_flat_dt_match(unsigned long node, const char **matches);
extern int of_flat_dt_match(unsigned long node, const char *const *matches);
extern unsigned long of_get_flat_dt_root(void);
extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,

3
kernel/irq/irqdomain.c
View File

@ -135,6 +135,9 @@ int irq_domain_simple_dt_translate(struct irq_domain *d,
return -EINVAL;
if (intsize < 1)
return -EINVAL;
if (d->nr_irq && ((intspec[0] < d->hwirq_base) ||
(intspec[0] >= d->hwirq_base + d->nr_irq)))
return -EINVAL;
*out_hwirq = intspec[0];
*out_type = IRQ_TYPE_NONE;