F: drivers/pnp/pnpacpi/
F: include/linux/acpi.h
F: include/acpi/
+F: Documentation/acpi
+F: Documentation/ABI/testing/sysfs-bus-acpi
+F: drivers/pci/*acpi*
+F: drivers/pci/*/*acpi*
+F: drivers/pci/*/*/*acpi*
ACPI FAN DRIVER
ARM/CSR SIRFPRIMA2 MACHINE SUPPORT
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/baohua/linux.git
S: Maintained
F: arch/arm/mach-prima2/
F: drivers/dma/sirf-dma.c
S: Maintained
F: arch/arm/mach-s5p*/
F: arch/arm/mach-exynos*/
+N: exynos
ARM/SAMSUNG MOBILE MACHINE SUPPORT
S: Maintained
F: drivers/clk/socfpga/
+ARM/STI ARCHITECTURE
+W: http://www.stlinux.com
+S: Maintained
+F: arch/arm/mach-sti/
+
ARM/TECHNOLOGIC SYSTEMS TS7250 MACHINE SUPPORT
F: arch/arm/mach-vt8500/
F: drivers/clocksource/vt8500_timer.c
F: drivers/gpio/gpio-vt8500.c
+ F: drivers/i2c/busses/i2c-wmt.c
F: drivers/mmc/host/wmt-sdmmc.c
F: drivers/pwm/pwm-vt8500.c
F: drivers/rtc/rtc-vt8500.c
T: git git://git.xilinx.com/linux-xlnx.git
S: Supported
F: arch/arm/mach-zynq/
+F: drivers/cpuidle/cpuidle-zynq.c
ARM64 PORT (AARCH64 ARCHITECTURE)
BACKLIGHT CLASS/SUBSYSTEM
S: Maintained
F: drivers/video/backlight/
F: include/linux/backlight.h
F: Documentation/video4linux/bttv/
F: drivers/media/pci/bt8xx/bttv*
+BUSLOGIC SCSI DRIVER
+S: Maintained
+F: drivers/scsi/BusLogic.*
+F: drivers/scsi/FlashPoint.*
+
C-MEDIA CMI8788 DRIVER
T: git git://git.linaro.org/people/mturquette/linux.git
S: Maintained
-F: drivers/clk/clk.c
-F: drivers/clk/clk-*
+F: drivers/clk/
+X: drivers/clk/clkdev.c
F: include/linux/clk-pr*
+F: include/linux/clk/
COMMON INTERNET FILE SYSTEM (CIFS)
S: Maintained
-T: git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git
+T: git git://git.linaro.org/people/vireshk/linux.git (For ARM Updates)
F: drivers/cpufreq/
F: include/linux/cpufreq.h
DEVICE FREQUENCY (DEVFREQ)
-L: linux-kernel@vger.kernel.org
+L: linux-pm@vger.kernel.org
S: Maintained
F: drivers/devfreq/
ECRYPT FILE SYSTEM
+W: http://ecryptfs.org
W: https://launchpad.net/ecryptfs
S: Supported
F: Documentation/filesystems/ecryptfs.txt
S: Maintained
F: drivers/media/rc/ene_ir.*
+ENHANCED ERROR HANDLING (EEH)
+S: Supported
+F: Documentation/powerpc/eeh-pci-error-recovery.txt
+F: arch/powerpc/kernel/eeh*.c
+
EPSON S1D13XXX FRAMEBUFFER DRIVER
S: Maintained
FCOE SUBSYSTEM (libfc, libfcoe, fcoe)
W: www.Open-FCoE.org
S: Supported
F: drivers/scsi/libfc/
S: Odd fixes
F: drivers/block/floppy.c
+FMC SUBSYSTEM
+W: http://www.ohwr.org/projects/fmc-bus
+S: Supported
+F: drivers/fmc/
+F: include/linux/fmc*.h
+F: include/linux/ipmi-fru.h
+K: fmc_d.*register
+
FPU EMULATOR
W: http://floatingpoint.sourceforge.net/emulator/index.html
S: Maintained
T: git git://git.secretlab.ca/git/linux-2.6.git
F: Documentation/gpio.txt
F: drivers/gpio/
F: arch/ia64/
IBM Power in-Nest Crypto Acceleration
S: Supported
F: drivers/crypto/nx/
INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
S: Supported
F: security/integrity/ima/
F: drivers/scsi/*iscsi*
F: include/scsi/*iscsi*
+ISCSI EXTENSIONS FOR RDMA (ISER) INITIATOR
+S: Supported
+W: http://www.openfabrics.org
+W: www.open-iscsi.org
+Q: http://patchwork.kernel.org/project/linux-rdma/list/
+F: drivers/infiniband/ulp/iser
+
ISDN SUBSYSTEM
F: include/linux/jbd2.h
JSM Neo PCI based serial card
-M: Lucas Tavares <lucaskt@linux.vnet.ibm.com>
+M: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
S: Maintained
F: drivers/tty/serial/jsm/
F: drivers/s390/kvm/
KERNEL VIRTUAL MACHINE (KVM) FOR ARM
W: http://systems.cs.columbia.edu/projects/kvm-arm
-S: Maintained
+S: Supported
F: arch/arm/include/uapi/asm/kvm*
F: arch/arm/include/asm/kvm*
F: arch/arm/kvm/
+KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64)
+S: Maintained
+F: arch/arm64/include/uapi/asm/kvm*
+F: arch/arm64/include/asm/kvm*
+F: arch/arm64/kvm/
+
KEXEC
W: http://kernel.org/pub/linux/utils/kernel/kexec/
T: git git://git.infradead.org/users/willy/linux-nvme.git
S: Supported
-F: drivers/block/nvme.c
+F: drivers/block/nvme*
F: include/linux/nvme.h
OMAP SUPPORT
S: Maintained
-F: drivers/scsi/osst*
-F: drivers/scsi/st*
+F: Documentation/scsi/osst.txt
+F: drivers/scsi/osst.*
+F: drivers/scsi/osst_*.h
+F: drivers/scsi/st.h
OPENCORES I2C BUS DRIVER
S: Supported
F: Documentation/PCI/pci-error-recovery.txt
-F: Documentation/powerpc/eeh-pci-error-recovery.txt
PCI SUBSYSTEM
S: Maintained
F: drivers/pinctrl/pinctrl-at91.c
+PIN CONTROLLER - SAMSUNG
+S: Maintained
+F: drivers/pinctrl/pinctrl-exynos.*
+F: drivers/pinctrl/pinctrl-s3c*
+F: drivers/pinctrl/pinctrl-samsung.*
+
PIN CONTROLLER - ST SPEAR
S: Maintained
F: Documentation/scsi/st.txt
-F: drivers/scsi/st*
+F: drivers/scsi/st.*
+F: drivers/scsi/st_*.h
SCTP PROTOCOL
SPI SUBSYSTEM
T: git git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git
Q: http://patchwork.kernel.org/project/spi-devel-general/list/
S: Maintained
S: Supported
+F: Documentation/stable_kernel_rules.txt
STAGING SUBSYSTEM
STAGING - SPEAKUP CONSOLE SPEECH DRIVER
-M: Kirk Reiser <kirk@braille.uwo.ca>
+M: Kirk Reiser <kirk@reisers.ca>
W: http://www.linux-speakup.org/
F: drivers/media/usb/tm6000/
TPM DEVICE DRIVER
W: http://tpmdd.sourceforge.net
F: drivers/net/wireless/wl3501*
WM97XX TOUCHSCREEN DRIVERS
-M: Mark Brown <broonie@opensource.wolfsonmicro.com>
+M: Mark Brown <broonie@kernel.org>
T: git git://opensource.wolfsonmicro.com/linux-2.6-touch
F: include/linux/wm97xx.h
WOLFSON MICROELECTRONICS DRIVERS
T: git git://opensource.wolfsonmicro.com/linux-2.6-asoc
T: git git://opensource.wolfsonmicro.com/linux-2.6-audioplus
F: arch/arm/xen/
F: arch/arm/include/asm/xen/
+XEN HYPERVISOR ARM64
+S: Supported
+F: arch/arm64/xen/
+F: arch/arm64/include/asm/xen/
+
XEN NETWORK BACKEND DRIVER
Lynx Point-LP (PCH)
Avoton (SOC)
Wellsburg (PCH)
+ Coleto Creek (PCH)
This driver can also be built as a module. If so, the module
will be called i2c-i801.
ATI SB700/SP5100
ATI SB800
AMD Hudson-2
+ AMD CZ
Serverworks OSB4
Serverworks CSB5
Serverworks CSB6
This driver can also be built as a module. If so, the module
will be called i2c-imx.
- config I2C_INTEL_MID
- tristate "Intel Moorestown/Medfield Platform I2C controller"
- depends on PCI
- help
- Say Y here if you have an Intel Moorestown/Medfield platform I2C
- controller.
-
- This support is also available as a module. If so, the module
- will be called i2c-intel-mid.
-
config I2C_IOP3XX
tristate "Intel IOPx3xx and IXP4xx on-chip I2C interface"
depends on ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || ARCH_IOP13XX
This driver can also be built as a module. If so, the module
will be called i2c-iop3xx.
+ config I2C_KEMPLD
+ tristate "Kontron COM I2C Controller"
+ depends on MFD_KEMPLD
+ help
+ This enables support for the I2C bus interface on some Kontron ETX
+ and COMexpress (ETXexpress) modules.
+
+ This driver can also be built as a module. If so, the module
+ will be called i2c-kempld.
+
config I2C_MPC
tristate "MPC107/824x/85xx/512x/52xx/83xx/86xx"
depends on PPC
config I2C_MV64XXX
tristate "Marvell mv64xxx I2C Controller"
- depends on (MV64X60 || PLAT_ORION)
+ depends on (MV64X60 || PLAT_ORION || ARCH_SUNXI)
help
If you say yes to this option, support will be included for the
built-in I2C interface on the Marvell 64xxx line of host bridges.
+ This driver is also used for Allwinner SoCs I2C controllers.
This driver can also be built as a module. If so, the module
will be called i2c-mv64xxx.
config I2C_SIRF
tristate "CSR SiRFprimaII I2C interface"
- depends on ARCH_PRIMA2
+ depends on ARCH_SIRF
help
If you say yes to this option, support will be included for the
CSR SiRFprimaII I2C interface.
This driver can also be built as a module. If so, the module
will be called i2c-versatile.
+ config I2C_WMT
+ tristate "Wondermedia WM8xxx SoC I2C bus support"
+ depends on ARCH_VT8500
+ help
+ Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
+ SoCs.
+
+ This driver can also be built as a module. If so, the module will be
+ called i2c-wmt.
+
config I2C_OCTEON
tristate "Cavium OCTEON I2C bus support"
depends on CPU_CAVIUM_OCTEON
#include <linux/init.h>
#include <linux/module.h>
#include <linux/amba/bus.h>
- #include <linux/atomic.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
/* maximum threshold value */
#define MAX_I2C_FIFO_THRESHOLD 15
+ /**
+ * struct i2c_vendor_data - per-vendor variations
+ * @has_mtdws: variant has the MTDWS bit
+ * @fifodepth: variant FIFO depth
+ */
+ struct i2c_vendor_data {
+ bool has_mtdws;
+ u32 fifodepth;
+ };
+
enum i2c_status {
I2C_NOP,
I2C_ON_GOING,
/**
* struct nmk_i2c_dev - private data structure of the controller.
+ * @vendor: vendor data for this variant.
* @adev: parent amba device.
* @adap: corresponding I2C adapter.
* @irq: interrupt line for the controller.
* @stop: stop condition.
* @xfer_complete: acknowledge completion for a I2C message.
* @result: controller propogated result.
- * @pinctrl: pinctrl handle.
- * @pins_default: default state for the pins.
- * @pins_idle: idle state for the pins.
- * @pins_sleep: sleep state for the pins.
* @busy: Busy doing transfer.
*/
struct nmk_i2c_dev {
+ struct i2c_vendor_data *vendor;
struct amba_device *adev;
struct i2c_adapter adap;
int irq;
int stop;
struct completion xfer_complete;
int result;
- /* Three pin states - default, idle & sleep */
- struct pinctrl *pinctrl;
- struct pinctrl_state *pins_default;
- struct pinctrl_state *pins_idle;
- struct pinctrl_state *pins_sleep;
bool busy;
};
irq_mask = (I2C_IT_RXFNF | I2C_IT_RXFF |
I2C_IT_MAL | I2C_IT_BERR);
- if (dev->stop)
+ if (dev->stop || !dev->vendor->has_mtdws)
irq_mask |= I2C_IT_MTD;
else
irq_mask |= I2C_IT_MTDWS;
* set the MTDWS bit (Master Transaction Done Without Stop)
* to start repeated start operation
*/
- if (dev->stop)
+ if (dev->stop || !dev->vendor->has_mtdws)
irq_mask |= I2C_IT_MTD;
else
irq_mask |= I2C_IT_MTDWS;
}
/* Optionaly enable pins to be muxed in and configured */
- if (!IS_ERR(dev->pins_default)) {
- status = pinctrl_select_state(dev->pinctrl,
- dev->pins_default);
- if (status)
- dev_err(&dev->adev->dev,
- "could not set default pins\n");
- }
+ pinctrl_pm_select_default_state(&dev->adev->dev);
status = init_hw(dev);
if (status)
clk_disable_unprepare(dev->clk);
out_clk:
/* Optionally let pins go into idle state */
- if (!IS_ERR(dev->pins_idle)) {
- status = pinctrl_select_state(dev->pinctrl,
- dev->pins_idle);
- if (status)
- dev_err(&dev->adev->dev,
- "could not set pins to idle state\n");
- }
+ pinctrl_pm_select_idle_state(&dev->adev->dev);
pm_runtime_put_sync(&dev->adev->dev);
{
struct amba_device *adev = to_amba_device(dev);
struct nmk_i2c_dev *nmk_i2c = amba_get_drvdata(adev);
- int ret;
if (nmk_i2c->busy)
return -EBUSY;
- if (!IS_ERR(nmk_i2c->pins_sleep)) {
- ret = pinctrl_select_state(nmk_i2c->pinctrl,
- nmk_i2c->pins_sleep);
- if (ret)
- dev_err(dev, "could not set pins to sleep state\n");
- }
+ pinctrl_pm_select_sleep_state(dev);
return 0;
}
static int nmk_i2c_resume(struct device *dev)
{
- struct amba_device *adev = to_amba_device(dev);
- struct nmk_i2c_dev *nmk_i2c = amba_get_drvdata(adev);
- int ret;
-
/* First go to the default state */
- if (!IS_ERR(nmk_i2c->pins_default)) {
- ret = pinctrl_select_state(nmk_i2c->pinctrl,
- nmk_i2c->pins_default);
- if (ret)
- dev_err(dev, "could not set pins to default state\n");
- }
+ pinctrl_pm_select_default_state(dev);
/* Then let's idle the pins until the next transfer happens */
- if (!IS_ERR(nmk_i2c->pins_idle)) {
- ret = pinctrl_select_state(nmk_i2c->pinctrl,
- nmk_i2c->pins_idle);
- if (ret)
- dev_err(dev, "could not set pins to idle state\n");
- }
+ pinctrl_pm_select_idle_state(dev);
+
return 0;
}
#else
pdata->sm = I2C_FREQ_MODE_FAST;
}
- static atomic_t adapter_id = ATOMIC_INIT(0);
-
static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
{
int ret = 0;
struct device_node *np = adev->dev.of_node;
struct nmk_i2c_dev *dev;
struct i2c_adapter *adap;
+ struct i2c_vendor_data *vendor = id->data;
+ u32 max_fifo_threshold = (vendor->fifodepth / 2) - 1;
if (!pdata) {
if (np) {
pdata = &u8500_i2c;
}
+ if (pdata->tft > max_fifo_threshold) {
+ dev_warn(&adev->dev, "requested TX FIFO threshold %u, adjusted down to %u\n",
+ pdata->tft, max_fifo_threshold);
+ pdata->tft = max_fifo_threshold;
+ }
+
+ if (pdata->rft > max_fifo_threshold) {
+ dev_warn(&adev->dev, "requested RX FIFO threshold %u, adjusted down to %u\n",
+ pdata->rft, max_fifo_threshold);
+ pdata->rft = max_fifo_threshold;
+ }
+
dev = kzalloc(sizeof(struct nmk_i2c_dev), GFP_KERNEL);
if (!dev) {
dev_err(&adev->dev, "cannot allocate memory\n");
ret = -ENOMEM;
goto err_no_mem;
}
+ dev->vendor = vendor;
dev->busy = false;
dev->adev = adev;
amba_set_drvdata(adev, dev);
- dev->pinctrl = devm_pinctrl_get(&adev->dev);
- if (IS_ERR(dev->pinctrl)) {
- ret = PTR_ERR(dev->pinctrl);
- goto err_pinctrl;
- }
-
- dev->pins_default = pinctrl_lookup_state(dev->pinctrl,
- PINCTRL_STATE_DEFAULT);
- if (IS_ERR(dev->pins_default)) {
- dev_err(&adev->dev, "could not get default pinstate\n");
- } else {
- ret = pinctrl_select_state(dev->pinctrl,
- dev->pins_default);
- if (ret)
- dev_dbg(&adev->dev, "could not set default pinstate\n");
- }
-
- dev->pins_idle = pinctrl_lookup_state(dev->pinctrl,
- PINCTRL_STATE_IDLE);
- if (IS_ERR(dev->pins_idle)) {
- dev_dbg(&adev->dev, "could not get idle pinstate\n");
- } else {
- /* If possible, let's go to idle until the first transfer */
- ret = pinctrl_select_state(dev->pinctrl,
- dev->pins_idle);
- if (ret)
- dev_dbg(&adev->dev, "could not set idle pinstate\n");
- }
-
- dev->pins_sleep = pinctrl_lookup_state(dev->pinctrl,
- PINCTRL_STATE_SLEEP);
- if (IS_ERR(dev->pins_sleep))
- dev_dbg(&adev->dev, "could not get sleep pinstate\n");
+ /* Select default pin state */
+ pinctrl_pm_select_default_state(&adev->dev);
+ /* If possible, let's go to idle until the first transfer */
+ pinctrl_pm_select_idle_state(&adev->dev);
dev->virtbase = ioremap(adev->res.start, resource_size(&adev->res));
if (!dev->virtbase) {
adap->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
adap->algo = &nmk_i2c_algo;
adap->timeout = msecs_to_jiffies(pdata->timeout);
- adap->nr = atomic_read(&adapter_id);
snprintf(adap->name, sizeof(adap->name),
- "Nomadik I2C%d at %pR", adap->nr, &adev->res);
- atomic_inc(&adapter_id);
+ "Nomadik I2C at %pR", &adev->res);
/* fetch the controller configuration from machine */
dev->cfg.clk_freq = pdata->clk_freq;
"initialize %s on virtual base %p\n",
adap->name, dev->virtbase);
- ret = i2c_add_numbered_adapter(adap);
+ ret = i2c_add_adapter(adap);
if (ret) {
dev_err(&adev->dev, "failed to add adapter\n");
goto err_add_adap;
iounmap(dev->virtbase);
err_no_ioremap:
kfree(dev);
- err_pinctrl:
err_no_mem:
return ret;
return 0;
}
+ static struct i2c_vendor_data vendor_stn8815 = {
+ .has_mtdws = false,
+ .fifodepth = 16, /* Guessed from TFTR/RFTR = 7 */
+ };
+
+ static struct i2c_vendor_data vendor_db8500 = {
+ .has_mtdws = true,
+ .fifodepth = 32, /* Guessed from TFTR/RFTR = 15 */
+ };
+
static struct amba_id nmk_i2c_ids[] = {
{
.id = 0x00180024,
.mask = 0x00ffffff,
+ .data = &vendor_stn8815,
},
{
.id = 0x00380024,
.mask = 0x00ffffff,
+ .data = &vendor_db8500,
},
{},
};
projects / linux.git / commitdiff