Skip to content

Commit

Permalink
Merge branch 'clocks/fixes/drivers' of git://linuxtv.org/pinchartl/fb…
Browse files Browse the repository at this point in the history
…dev into clk-fixes
  • Loading branch information
Mike Turquette committed Feb 25, 2014
2 parents 00efcb1 + 6048099 commit 10b7cdc
Show file tree
Hide file tree
Showing 375 changed files with 3,482 additions and 2,197 deletions.
3 changes: 1 addition & 2 deletions Documentation/ABI/testing/sysfs-tty
Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,7 @@ Date: Nov 2010
Contact: Kay Sievers <kay.sievers@vrfy.org>
Description:
Shows the list of currently configured
tty devices used for the console,
like 'tty1 ttyS0'.
console devices, like 'tty1 ttyS0'.
The last entry in the file is the active
device connected to /dev/console.
The file supports poll() to detect virtual
Expand Down
119 changes: 109 additions & 10 deletions Documentation/PCI/MSI-HOWTO.txt
Original file line number Diff line number Diff line change
Expand Up @@ -82,7 +82,19 @@ Most of the hard work is done for the driver in the PCI layer. It simply
has to request that the PCI layer set up the MSI capability for this
device.

4.2.1 pci_enable_msi_range
4.2.1 pci_enable_msi

int pci_enable_msi(struct pci_dev *dev)

A successful call allocates ONE interrupt to the device, regardless
of how many MSIs the device supports. The device is switched from
pin-based interrupt mode to MSI mode. The dev->irq number is changed
to a new number which represents the message signaled interrupt;
consequently, this function should be called before the driver calls
request_irq(), because an MSI is delivered via a vector that is
different from the vector of a pin-based interrupt.

4.2.2 pci_enable_msi_range

int pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec)

Expand Down Expand Up @@ -147,6 +159,11 @@ static int foo_driver_enable_msi(struct pci_dev *pdev, int nvec)
return pci_enable_msi_range(pdev, nvec, nvec);
}

Note, unlike pci_enable_msi_exact() function, which could be also used to
enable a particular number of MSI-X interrupts, pci_enable_msi_range()
returns either a negative errno or 'nvec' (not negative errno or 0 - as
pci_enable_msi_exact() does).

4.2.1.3 Single MSI mode

The most notorious example of the request type described above is
Expand All @@ -158,7 +175,27 @@ static int foo_driver_enable_single_msi(struct pci_dev *pdev)
return pci_enable_msi_range(pdev, 1, 1);
}

4.2.2 pci_disable_msi
Note, unlike pci_enable_msi() function, which could be also used to
enable the single MSI mode, pci_enable_msi_range() returns either a
negative errno or 1 (not negative errno or 0 - as pci_enable_msi()
does).

4.2.3 pci_enable_msi_exact

int pci_enable_msi_exact(struct pci_dev *dev, int nvec)

This variation on pci_enable_msi_range() call allows a device driver to
request exactly 'nvec' MSIs.

If this function returns a negative number, it indicates an error and
the driver should not attempt to request any more MSI interrupts for
this device.

By contrast with pci_enable_msi_range() function, pci_enable_msi_exact()
returns zero in case of success, which indicates MSI interrupts have been
successfully allocated.

4.2.4 pci_disable_msi

void pci_disable_msi(struct pci_dev *dev)

Expand All @@ -172,7 +209,7 @@ on any interrupt for which it previously called request_irq().
Failure to do so results in a BUG_ON(), leaving the device with
MSI enabled and thus leaking its vector.

4.2.3 pci_msi_vec_count
4.2.4 pci_msi_vec_count

int pci_msi_vec_count(struct pci_dev *dev)

Expand Down Expand Up @@ -257,8 +294,8 @@ possible, likely up to the limit returned by pci_msix_vec_count() function:

static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
{
return pci_enable_msi_range(adapter->pdev, adapter->msix_entries,
1, nvec);
return pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
1, nvec);
}

Note the value of 'minvec' parameter is 1. As 'minvec' is inclusive,
Expand All @@ -269,8 +306,8 @@ In this case the function could look like this:

static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
{
return pci_enable_msi_range(adapter->pdev, adapter->msix_entries,
FOO_DRIVER_MINIMUM_NVEC, nvec);
return pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
FOO_DRIVER_MINIMUM_NVEC, nvec);
}

4.3.1.2 Exact number of MSI-X interrupts
Expand All @@ -282,10 +319,15 @@ parameters:

static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec)
{
return pci_enable_msi_range(adapter->pdev, adapter->msix_entries,
nvec, nvec);
return pci_enable_msix_range(adapter->pdev, adapter->msix_entries,
nvec, nvec);
}

Note, unlike pci_enable_msix_exact() function, which could be also used to
enable a particular number of MSI-X interrupts, pci_enable_msix_range()
returns either a negative errno or 'nvec' (not negative errno or 0 - as
pci_enable_msix_exact() does).

4.3.1.3 Specific requirements to the number of MSI-X interrupts

As noted above, there could be devices that can not operate with just any
Expand Down Expand Up @@ -332,7 +374,64 @@ Note how pci_enable_msix_range() return value is analized for a fallback -
any error code other than -ENOSPC indicates a fatal error and should not
be retried.

4.3.2 pci_disable_msix
4.3.2 pci_enable_msix_exact

int pci_enable_msix_exact(struct pci_dev *dev,
struct msix_entry *entries, int nvec)

This variation on pci_enable_msix_range() call allows a device driver to
request exactly 'nvec' MSI-Xs.

If this function returns a negative number, it indicates an error and
the driver should not attempt to allocate any more MSI-X interrupts for
this device.

By contrast with pci_enable_msix_range() function, pci_enable_msix_exact()
returns zero in case of success, which indicates MSI-X interrupts have been
successfully allocated.

Another version of a routine that enables MSI-X mode for a device with
specific requirements described in chapter 4.3.1.3 might look like this:

/*
* Assume 'minvec' and 'maxvec' are non-zero
*/
static int foo_driver_enable_msix(struct foo_adapter *adapter,
int minvec, int maxvec)
{
int rc;

minvec = roundup_pow_of_two(minvec);
maxvec = rounddown_pow_of_two(maxvec);

if (minvec > maxvec)
return -ERANGE;

retry:
rc = pci_enable_msix_exact(adapter->pdev,
adapter->msix_entries, maxvec);

/*
* -ENOSPC is the only error code allowed to be analyzed
*/
if (rc == -ENOSPC) {
if (maxvec == 1)
return -ENOSPC;

maxvec /= 2;

if (minvec > maxvec)
return -ENOSPC;

goto retry;
} else if (rc < 0) {
return rc;
}

return maxvec;
}

4.3.3 pci_disable_msix

void pci_disable_msix(struct pci_dev *dev)

Expand Down
2 changes: 1 addition & 1 deletion Documentation/devicetree/bindings/arm/omap/omap.txt
Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,7 @@ Boards:
compatible = "ti,omap3-beagle", "ti,omap3"

- OMAP3 Tobi with Overo : Commercial expansion board with daughter board
compatible = "ti,omap3-tobi", "ti,omap3-overo", "ti,omap3"
compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3"

- OMAP4 SDP : Software Development Board
compatible = "ti,omap4-sdp", "ti,omap4430"
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -21,9 +21,9 @@ Required Properties:
must appear in the same order as the output clocks.
- #clock-cells: Must be 1
- clock-output-names: The name of the clocks as free-form strings
- renesas,indices: Indices of the gate clocks into the group (0 to 31)
- renesas,clock-indices: Indices of the gate clocks into the group (0 to 31)

The clocks, clock-output-names and renesas,indices properties contain one
The clocks, clock-output-names and renesas,clock-indices properties contain one
entry per gate clock. The MSTP groups are sparsely populated. Unimplemented
gate clocks must not be declared.

Expand Down
58 changes: 58 additions & 0 deletions Documentation/devicetree/bindings/net/sti-dwmac.txt
Original file line number Diff line number Diff line change
@@ -0,0 +1,58 @@
STMicroelectronics SoC DWMAC glue layer controller

The device node has following properties.

Required properties:
- compatible : Can be "st,stih415-dwmac", "st,stih416-dwmac" or
"st,stid127-dwmac".
- reg : Offset of the glue configuration register map in system
configuration regmap pointed by st,syscon property and size.

- reg-names : Should be "sti-ethconf".

- st,syscon : Should be phandle to system configuration node which
encompases this glue registers.

- st,tx-retime-src: On STi Parts for Giga bit speeds, 125Mhz clocks can be
wired up in from different sources. One via TXCLK pin and other via CLK_125
pin. This wiring is totally board dependent. However the retiming glue
logic should be configured accordingly. Possible values for this property

"txclk" - if 125Mhz clock is wired up via txclk line.
"clk_125" - if 125Mhz clock is wired up via clk_125 line.

This property is only valid for Giga bit setup( GMII, RGMII), and it is
un-used for non-giga bit (MII and RMII) setups. Also note that internal
clockgen can not generate stable 125Mhz clock.

- st,ext-phyclk: This boolean property indicates who is generating the clock
for tx and rx. This property is only valid for RMII case where the clock can
be generated from the MAC or PHY.

- clock-names: should be "sti-ethclk".
- clocks: Should point to ethernet clockgen which can generate phyclk.


Example:

ethernet0: dwmac@fe810000 {
device_type = "network";
compatible = "st,stih416-dwmac", "snps,dwmac", "snps,dwmac-3.710";
reg = <0xfe810000 0x8000>, <0x8bc 0x4>;
reg-names = "stmmaceth", "sti-ethconf";
interrupts = <0 133 0>, <0 134 0>, <0 135 0>;
interrupt-names = "macirq", "eth_wake_irq", "eth_lpi";
phy-mode = "mii";

st,syscon = <&syscfg_rear>;

snps,pbl = <32>;
snps,mixed-burst;

resets = <&softreset STIH416_ETH0_SOFTRESET>;
reset-names = "stmmaceth";
pinctrl-0 = <&pinctrl_mii0>;
pinctrl-names = "default";
clocks = <&CLK_S_GMAC0_PHY>;
clock-names = "stmmaceth";
};
45 changes: 0 additions & 45 deletions Documentation/networking/3c505.txt

This file was deleted.

15 changes: 14 additions & 1 deletion MAINTAINERS
Original file line number Diff line number Diff line change
Expand Up @@ -1860,6 +1860,7 @@ F: drivers/net/ethernet/broadcom/bnx2x/

BROADCOM BCM281XX/BCM11XXX ARM ARCHITECTURE
M: Christian Daudt <bcm@fixthebug.org>
M: Matt Porter <mporter@linaro.org>
L: bcm-kernel-feedback-list@broadcom.com
T: git git://git.github.com/broadcom/bcm11351
S: Maintained
Expand Down Expand Up @@ -2408,8 +2409,10 @@ F: tools/power/cpupower/

CPUSETS
M: Li Zefan <lizefan@huawei.com>
L: cgroups@vger.kernel.org
W: http://www.bullopensource.org/cpuset/
W: http://oss.sgi.com/projects/cpusets/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git
S: Maintained
F: Documentation/cgroups/cpusets.txt
F: include/linux/cpuset.h
Expand Down Expand Up @@ -3324,6 +3327,17 @@ S: Maintained
F: include/linux/netfilter_bridge/
F: net/bridge/

ETHERNET PHY LIBRARY
M: Florian Fainelli <f.fainelli@gmail.com>
L: netdev@vger.kernel.org
S: Maintained
F: include/linux/phy.h
F: include/linux/phy_fixed.h
F: drivers/net/phy/
F: Documentation/networking/phy.txt
F: drivers/of/of_mdio.c
F: drivers/of/of_net.c

EXT2 FILE SYSTEM
M: Jan Kara <jack@suse.cz>
L: linux-ext4@vger.kernel.org
Expand Down Expand Up @@ -9715,7 +9729,6 @@ F: drivers/xen/*swiotlb*
XFS FILESYSTEM
P: Silicon Graphics Inc
M: Dave Chinner <david@fromorbit.com>
M: Ben Myers <bpm@sgi.com>
M: xfs@oss.sgi.com
L: xfs@oss.sgi.com
W: http://oss.sgi.com/projects/xfs
Expand Down
2 changes: 1 addition & 1 deletion Makefile
Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 14
SUBLEVEL = 0
EXTRAVERSION = -rc3
EXTRAVERSION = -rc4
NAME = Shuffling Zombie Juror

# *DOCUMENTATION*
Expand Down
3 changes: 2 additions & 1 deletion arch/arm/boot/dts/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -209,7 +209,8 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
omap3-n900.dtb \
omap3-n9.dtb \
omap3-n950.dtb \
omap3-tobi.dtb \
omap3-overo-tobi.dtb \
omap3-overo-storm-tobi.dtb \
omap3-gta04.dtb \
omap3-igep0020.dtb \
omap3-igep0030.dtb \
Expand Down
Loading

0 comments on commit 10b7cdc

Please sign in to comment.