[PATCH v5 0/8] PCI: DWC/Keystone: MSI configuration cleanup

From: Kishon Vijay Abraham I <kishon@ti.com>
To: Murali Karicheri <m-karicheri2@ti.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Bjorn Helgaas <bhelgaas@google.com>,
	Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
	Marc Zyngier <marc.zyngier@arm.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>,
	Jingoo Han <jingoohan1@gmail.com>, <linux-pci@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Subject: [PATCH v5 0/8] PCI: DWC/Keystone: MSI configuration cleanup
Date: Thu, 21 Mar 2019 15:29:19 +0530	[thread overview]
Message-ID: <20190321095927.7058-1-kishon@ti.com> (raw)

This series tries to address the comments discussed in [1] w.r.t
removing Keystone specific callbacks defined in dw_pcie_host_ops.

This series also tries to cleanup the Keystone interrupt handling
part.

Changes from v4:
*) Removed legacy interrupt cleanup patch which uses hierarchy IRQ
   domain since TI platform uses edge interrupt for legacy interrupt.
   This will be deferred till I get more details from HW team.

Changes from v3:
*) Uses hierarchy IRQ domain for legacy interrupts since there is 1:1
   mapping between legacy interrupt and GIC IRQ.
   (MSI still depends on the order of IRQs populated in dt).

Changes from v2:
*) Removed patch that modifies ks_pcie_legacy_irq_handler() to check the
   IRQ_STATUS of INTA/B/C/D. Lorenzo's comment to create a matrix
   LinuxIRQ x INTx will be added in AM654x PCIe support series
*) ks_pcie_legacy_irq_handler() is made to use hwirq to get IRQ offset
   instead of virq.
*) default msi_irq_chip is assigned in dw_pcie_host_init() once keystone
   assigns its msi_irq_chip
*) Fixed other minor comments from Lorenzo and Bjorn

Changes from v1:
*) Removed "PCI: keystone: Use "dummy_irq_chip" instead of new irqchip
for legacy interrupt handling" from the patch series. It should be
handled differently.

*) Added Gustavo's ACKed by and fixed a commit message.

[1] -> https://patchwork.kernel.org/patch/10681587/

Kishon Vijay Abraham I (8):
  PCI: keystone: Cleanup interrupt related macros
  PCI: keystone: Add separate functions for configuring MSI and legacy
    interrupt
  PCI: keystone: Use hwirq to get the MSI IRQ number offset
  PCI: keystone: Cleanup ks_pcie_msi_irq_handler
  PCI: dwc: Add support to use non default msi_irq_chip
  PCI: keystone: Use Keystone specific msi_irq_chip
  PCI: dwc: Remove Keystone specific dw_pcie_host_ops
  PCI: dwc: Do not write to MSI control registers if the platform
    doesn't use it

 drivers/pci/controller/dwc/pci-keystone.c     | 365 ++++++++++--------
 .../pci/controller/dwc/pcie-designware-host.c |  78 ++--
 drivers/pci/controller/dwc/pcie-designware.h  |   6 +-
 3 files changed, 233 insertions(+), 216 deletions(-)

-- 
2.17.1