Commit Graph

18 Commits

Author SHA1 Message Date
Jaehoon Chung
01d06a9a4c PCI: exynos: Fix INTx enablement statement termination error
Use a semicolon, not a comma, to terminate a statement.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2015-04-08 14:26:54 -05:00
Linus Torvalds
e6b5be2be4 Driver core patches for 3.19-rc1
Here's the set of driver core patches for 3.19-rc1.
 
 They are dominated by the removal of the .owner field in platform
 drivers.  They touch a lot of files, but they are "simple" changes, just
 removing a line in a structure.
 
 Other than that, a few minor driver core and debugfs changes.  There are
 some ath9k patches coming in through this tree that have been acked by
 the wireless maintainers as they relied on the debugfs changes.
 
 Everything has been in linux-next for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core update from Greg KH:
 "Here's the set of driver core patches for 3.19-rc1.

  They are dominated by the removal of the .owner field in platform
  drivers.  They touch a lot of files, but they are "simple" changes,
  just removing a line in a structure.

  Other than that, a few minor driver core and debugfs changes.  There
  are some ath9k patches coming in through this tree that have been
  acked by the wireless maintainers as they relied on the debugfs
  changes.

  Everything has been in linux-next for a while"

* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
  Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
  fs: debugfs: add forward declaration for struct device type
  firmware class: Deletion of an unnecessary check before the function call "vunmap"
  firmware loader: fix hung task warning dump
  devcoredump: provide a one-way disable function
  device: Add dev_<level>_once variants
  ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
  ath: use seq_file api for ath9k debugfs files
  debugfs: add helper function to create device related seq_file
  drivers/base: cacheinfo: remove noisy error boot message
  Revert "core: platform: add warning if driver has no owner"
  drivers: base: support cpu cache information interface to userspace via sysfs
  drivers: base: add cpu_device_create to support per-cpu devices
  topology: replace custom attribute macros with standard DEVICE_ATTR*
  cpumask: factor out show_cpumap into separate helper function
  driver core: Fix unbalanced device reference in drivers_probe
  driver core: fix race with userland in device_add()
  sysfs/kernfs: make read requests on pre-alloc files use the buffer.
  sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
  fs: sysfs: return EGBIG on write if offset is larger than file size
  ...
2014-12-14 16:10:09 -08:00
Jingoo Han
bc512c5a8c PCI: exynos: Remove unnecessary return statement
This patch fixes the following checkpatch warning:

  WARNING: void function return statements are not generally useful

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-11-13 10:50:31 -07:00
Jingoo Han
70b3e89aaf PCI: exynos: Add exynos prefix to add_pcie_port()/pcie_init()
The add_pcie_port() and pcie_init() functions are Exynos-specific.  Add
exynos prefix to avoid collision in global name space.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-10-23 10:00:06 -06:00
Wolfram Sang
e27a5130ab pci: host: drop owner assignment from platform_drivers
A platform_driver does not need to set an owner, it will be populated by the
driver core.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2014-10-20 16:21:20 +02:00
Bjorn Helgaas
843a85ced9 Merge branches 'pci/host-designware', 'pci/host-imx6', 'pci/host-mvebu' and 'pci/host-tegra' into next
* pci/host-designware:
  PCI: designware: Remove unnecessary use of 'conf_lock' spinlock
  PCI: designware: Use new OF interrupt mapping when possible
  PCI: designware: Fix iATU programming for cfg1, io and mem viewport
  PCI: designware: Fix comment for setting number of lanes

* pci/host-imx6:
  PCI: designware: Split Exynos and i.MX bindings

* pci/host-mvebu:
  PCI: mvebu: Use '%pa' for printing 'phys_addr_t' type
  PCI: mvebu: Remove unnecessary use of 'conf_lock' spinlock
  PCI: mvebu: split PCIe BARs into multiple MBus windows when needed
  bus: mvebu-mbus: allow several windows with the same target/attribute
  bus: mvebu-mbus: Avoid setting an undefined window size
  PCI: mvebu: fix off-by-one in the computed size of the mbus windows

* pci/host-tegra:
  PCI: tegra: Use new OF interrupt mapping when possible
2014-06-03 08:45:42 -06:00
Bjorn Helgaas
617b4157a5 Merge branches 'pci/host-exynos', 'pci/host-imx6', 'pci/resource' and 'pci/misc' into next
* pci/host-exynos:
  PCI: exynos: Fix add_pcie_port() section mismatch warning

* pci/host-imx6:
  PCI: imx6: Add support for MSI
  PCI: designware: Make MSI ISR shared IRQ aware
  PCI: imx6: Remove optional (and unused) IRQs
  PCI: imx6: Drop old IRQ mapping
  PCI: imx6: Use new clock names
  PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning

* pci/resource:
  i82875p_edac: Assign PCI resources before adding device

* pci/misc:
  ARM/PCI: Call pcie_bus_configure_settings() to set MPS
  PCI: Make pci_bus_add_device() void

Conflicts:
	drivers/edac/i82875p_edac.c
2014-05-30 11:41:17 -06:00
Lucas Stach
7f4f16eef5 PCI: designware: Make MSI ISR shared IRQ aware
On i.MX6 the host controller MSI IRQ is shared with PCI legacy INTD.  Make
sure we don't bail too early from the IRQ handler.

The issue is fairly theoretical as it would require a system setup with a
PCIe switch where one connected device is using legacy INTD and another one
using MSI, but better fix it now.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Richard Zhu <r65037@freescale.com>
2014-05-30 11:24:58 -06:00
Sachin Kamat
17d7acc8e1 PCI: exynos: Fix add_pcie_port() section mismatch warning
add_pcie_port() is called only from exynos_pcie_probe(), which is annotated
with __init.  Thus it makes sense to annotate add_pcie_port() with __init
to avoid the following section mismatch warning:

  WARNING: drivers/pci/built-in.o(.text.unlikely+0xf8): Section mismatch in reference from the function add_pcie_port() to the function .init.text:dw_pcie_host_init()
    The function add_pcie_port() references
    the function __init dw_pcie_host_init().
    This is often because add_pcie_port lacks a __init
    annotation or the annotation of dw_pcie_host_init is wrong.

[bhelgaas: changelog]
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
2014-05-29 16:16:07 -06:00
Jingoo Han
755ba5e406 PCI: exynos: Remove unnecessary OOM messages
The site-specific OOM messages are unnecessary, because they duplicate the
MM subsystem generic OOM message.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-05-27 16:58:00 -06:00
Andrew Murray
11c6fbd8d9 PCI: designware: Remove unnecessary use of 'conf_lock' spinlock
Serialization of configuration accesses is provided by 'pci_lock' in
drivers/pci/access.c thus making the driver's 'conf_lock' superfluous.

Signed-off-by: Andrew Murray <amurray@embedded-bits.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Richard Zhu <r65037@freescale.com>
2014-04-16 10:20:48 -06:00
Pratyush Anand
a01ef59e13 PCI: designware: Add dw_pcie prefix before cfg_read/write
The cfg_read/write functions are DesignWare-specific.  Add dw_pcie prefix
to avoid collision in global name space.

Tested-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
2013-12-20 09:18:31 -07:00
Sachin Kamat
eb36309a9d PCI: exynos: Remove redundant of_match_ptr
This driver is DT only.  Hence of_match_ptr is not required.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
2013-10-29 16:13:40 -06:00
Wei Yongjun
f8db3c9086 PCI: exynos: Add missing clk_disable_unprepare() on error path
Add the missing clk_disable_unprepare() before return
from exynos_pcie_probe() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
2013-10-04 16:46:28 -06:00
Jingoo Han
f62b878b4d PCI: exynos: Turn off power of phy block when link failed
When link failed, there is no need to turn on phy block. Also,
turning on phy block is added, in order to turn on phy block
regardless of the default value of phy registers.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2013-09-25 16:36:03 -06:00
Jingoo Han
f342d940ee PCI: exynos: Add support for MSI
This patch adds support for Message Signaled Interrupt in the
Exynos PCIe driver using Synopsys designware PCIe core IP.

Signed-off-by: Siva Reddy Kallam <siva.kallam@samsung.com>
Signed-off-by: Srikanth T Shivanand <ts.srikanth@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
2013-09-25 16:31:27 -06:00
Seungwon Jeon
058dd016a1 PCI: exynos: Add I/O access wrappers
This patch adds wrappers for MMIO access to ELBI, PHY, and other
registers.  No functional change.

[bhelgaas: changelog]
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
2013-08-29 13:47:20 -06:00
Jingoo Han
4b1ced841b PCI: exynos: Split into Synopsys part and Exynos part
Exynos PCIe IP consists of Synopsys specific part and Exynos
specific part. Only core block is a Synopsys Designware part;
other parts are Exynos specific.

Also, the Synopsys Designware part can be shared with other
platforms; thus, it can be split two parts such as Synopsys
Designware part and Exynos specific part.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
2013-08-12 12:18:20 -06:00