Commit Graph

7 Commits

Author SHA1 Message Date
Bjorn Helgaas
bb78146c18 Merge branch 'pci/controller/xilinx'
- Fix off-by-one error in INTx IRQ handler that caused INTx interrupts to
  be lost or delivered as the wrong interrupt (Sean Anderson)

- Rate-limit misc interrupt messages (Sean Anderson)

- Turn off the clock on probe failure and device removal (Sean Anderson)

- Add DT binding and driver support for enabling/disabling PHYs (Sean
  Anderson)

- Add PCIe phy bindings for the ZCU102 (Sean Anderson)

- Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT binding
  and xilinx-dma-pl driver (Thippeswamy Havalige)

* pci/controller/xilinx:
  PCI: xilinx-xdma: Add Xilinx QDMA Root Port driver
  dt-bindings: PCI: xilinx-xdma: Add schemas for Xilinx QDMA PCIe Root Port Bridge
  arm64: zynqmp: Add PCIe phys property for ZCU102
  PCI: xilinx-nwl: Add PHY support
  dt-bindings: pci: xilinx-nwl: Add phys property
  PCI: xilinx-nwl: Clean up clock on probe failure/removal
  PCI: xilinx-nwl: Rate-limit misc interrupt messages
  PCI: xilinx-nwl: Fix register misspelling
  PCI: xilinx-nwl: Fix off-by-one in INTx IRQ handler
2024-09-19 14:25:33 -05:00
Thippeswamy Havalige
6ac721795d
PCI: xilinx-xdma: Add Xilinx QDMA Root Port driver
Add support for Xilinx QDMA Soft IP core as Root Port.

The Versal Prime devices support QDMA soft IP module in programmable logic.

The integrated QDMA Soft IP block has integrated bridge function that can
act as PCIe Root Port.

Link: https://lore.kernel.org/linux-pci/20240811022345.1178203-3-thippesw@amd.com
Signed-off-by: Thippeswamy Havalige <thippesw@amd.com>
[kwilczynski: removed unused header]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2024-08-31 14:03:06 +00:00
Marek Vasut
9200f2099f PCI: xilinx-xdma: Silence 'set affinity failed' warning
Use MSI_FLAG_NO_AFFINITY, which keeps .irq_set_affinity() unset and allows
migrate_one_irq() to exit right away, without warnings like this:

  IRQ...: set affinity failed(-22)

Remove the .irq_set_affinity() implementation that is no longer needed.

Link: https://lore.kernel.org/r/20240723132958.41320-15-marek.vasut+renesas@mailbox.org
Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
2024-08-06 12:52:17 -05:00
Harshit Mogalapalli
2324be17b5
PCI: xilinx-xdma: Fix error code in xilinx_pl_dma_pcie_init_irq_domain()
Currently, if the function irq_domain_add_linear() fails to allocate
a new IRQ domain and returns NULL, we would then still return a success
from the xilinx_pl_dma_pcie_init_irq_domain() function regardless, as
the PTR_ERR(NULL) would return a value of zero.  This is not a desirable
outcome.

Thus, fix the incorrect error code and return the -ENOMEM error code if
the irq_domain_add_linear() fails to allocate a new IRQ domain.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20231030072757.3236546-1-harshit.m.mogalapalli@oracle.com
Fixes: 8d786149d7 ("PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2024-01-08 17:44:45 +00:00
Krzysztof Wilczyński
7aa5f8fcd6
PCI: xilinx-xdma: Fix uninitialized symbols in xilinx_pl_dma_pcie_setup_irq()
The error paths that follow calls to the devm_request_irq() functions
within the xilinx_pl_dma_pcie_setup_irq() reference an uninitialized
symbol each that also so happens to be incorrect.

Thus, fix this omission and reference the correct variable when invoking
a given dev_err() function following an error.

This problem was found using smatch via the 0-DAY CI Kernel Test service:

  drivers/pci/controller/pcie-xilinx-dma-pl.c:638 xilinx_pl_dma_pcie_setup_irq() error: uninitialized symbol 'irq'.
  drivers/pci/controller/pcie-xilinx-dma-pl.c:645 xilinx_pl_dma_pcie_setup_irq() error: uninitialized symbol 'irq'.

Fixes: 8d786149d7 ("PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver")
Link: https://lore.kernel.org/oe-kbuild/202312120248.5DblxkBp-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/r/202312120248.5DblxkBp-lkp@intel.com/
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2024-01-06 13:37:09 +00:00
Yang Li
b642e081f4
PCI: xilinx-xdma: Remove redundant dev_err()
There is no need to call the dev_err() function directly to print a
custom message when handling an error from either the platform_get_irq()
or platform_get_irq_byname() functions as both are going to display an
appropriate error message in case of a failure.

  ./drivers/pci/controller/pcie-xilinx-dma-pl.c:688:2-9: line 688 is redundant because platform_get_irq() already prints an error
  ./drivers/pci/controller/pcie-xilinx-dma-pl.c:702:2-9: line 702 is redundant because platform_get_irq() already prints an error

Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=7074
Link: https://lore.kernel.org/linux-pci/20231030061242.51475-1-yang.lee@linux.alibaba.com
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2023-12-18 02:21:36 +00:00
Thippeswamy Havalige
8d786149d7
PCI: xilinx-xdma: Add Xilinx XDMA Root Port driver
Add support for Xilinx XDMA Soft IP core as Root Port.

The Zynq UltraScale+ MPSoCs devices support XDMA soft IP module in
programmable logic.

The integrated XDMA Soft IP block has integrated bridge function that
can act as PCIe Root Port.

[kwilczynski: correct indentation and whitespaces, Kconfig help update]
Link: https://lore.kernel.org/linux-pci/20231003173453.938190-4-thippeswamy.havalige@amd.com
Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Signed-off-by: Bharat Kumar Gogada <bharat.kumar.gogada@amd.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
2023-10-26 15:02:02 +00:00