linux/drivers/pci/dwc/pci-exynos.c, branch v4.15

Merge branch 'pci/host-exynos' into next

2017-09-07T18:23:56Z

* pci/host-exynos: PCI: exynos: Fix platform_get_irq() error handling

PCI: exynos: Fix platform_get_irq() error handling

2017-09-05T18:28:24Z

platform_get_irq() returns a negative number on failure, so adjust the logic to detect such condition and propagate the real error value on failure. Reported-by: Bjorn Helgaas Signed-off-by: Fabio Estevam Signed-off-by: Bjorn Helgaas Acked-by: Jingoo Han

PCI: dwc: designware: Handle ->host_init() failures

2017-08-03T21:14:32Z

In several dwc-based drivers, ->host_init() can fail, so make sure to propagate and handle this to avoid continuing operation of a driver or hardware in an invalid state. Signed-off-by: Bjorn Andersson Signed-off-by: Bjorn Helgaas Acked-by: Joao Pinto Acked-by: Jingoo Han

PCI: dwc: Constify dw_pcie_host_ops structures

2017-07-02T23:38:50Z

The dw_pcie_host_ops structures are never modified. Constify these structures such that these can be write-protected. Signed-off-by: Jisheng Zhang Signed-off-by: Bjorn Helgaas Acked-by: Jingoo Han Acked-by: Kishon Vijay Abraham I

PCI: dwc: all: Modify dbi accessors to access data of 4/2/1 bytes

2017-04-04T13:40:55Z

Previously dbi accessors can be used to access data of size 4 bytes. But there might be situations (like accessing MSI_MESSAGE_CONTROL in order to set/get the number of required MSI interrupts in EP mode) where dbi accessors must be used to access data of size 2. This is in preparation for adding endpoint mode support to designware driver. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Bjorn Helgaas Acked-by: Niklas Cassel Cc: Jingoo Han Cc: Joao Pinto

PCI: dwc: all: Modify dbi accessors to take dbi_base as argument

2017-04-04T13:40:12Z

dwc has 2 dbi address space labeled dbics and dbics2. The existing helper to access dbi address space can access only dbics. However dbics2 has to be accessed for programming the BAR registers in the case of EP mode. This is in preparation for adding EP mode support to dwc driver. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Bjorn Helgaas Acked-by: Niklas Cassel Cc: Jingoo Han Cc: Joao Pinto

PCI: exynos: Initialize elbi_base even when using PHY framework

2017-03-07T18:46:38Z

Even when using the PHY framework, we need the elbi_base. Before this patch, we didn't initialize elbi_base, which caused NULL pointer dereferences later. Fixes: e7cd7ef58e1f ("PCI: exynos: Support the PHY generic framework") Signed-off-by: Jaehoon Chung Signed-off-by: Bjorn Helgaas

PCI: dwc: Fix crashes seen due to missing assignments

2017-02-25T15:06:02Z

Fix the following crash, seen in dwc/pci-imx6. Unable to handle kernel NULL pointer dereference at virtual address 00000070 pgd = c0004000 [00000070] *pgd=00000000 Internal error: Oops: 805 [#1] SMP ARM Modules linked in: CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.10.0-09686-g9e31489 #1 Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) task: cb850000 task.stack: cb84e000 PC is at imx6_pcie_probe+0x2f4/0x414 ... While at it, fix the same problem in various drivers instead of waiting for individual crash reports. The change in the imx6 driver was tested with qemu. The changes in other drivers are based on code inspection and have been compile tested only. Fixes: 442ec4c04d12 ("PCI: dwc: all: Split struct pcie_port into host-only and core structures") Signed-off-by: Guenter Roeck Signed-off-by: Vivek Gautam # designware-plat Signed-off-by: Bjorn Helgaas Acked-by: Kishon Vijay Abraham I

Merge branch 'pci/host-exynos' into next

2017-02-21T21:13:30Z

* pci/host-exynos: PCI: exynos: Support the PHY generic framework Documentation: binding: Modify the exynos5440 PCIe binding phy: phy-exynos-pcie: Add support for Exynos PCIe PHY Documentation: samsung-phy: Add exynos-pcie-phy binding PCI: exynos: Refactor to make it easier to support other SoCs PCI: exynos: Remove duplicated code PCI: exynos: Use the bitops BIT() macro to build bitmasks PCI: exynos: Remove unnecessary local variables PCI: exynos: Replace the *_blk/*_phy/*_elb accessors PCI: exynos: Rename all pointer names from "exynos_pcie" to "ep" Conflicts: drivers/pci/dwc/pci-exynos.c

PCI: dwc: all: Split struct pcie_port into host-only and core structures

2017-02-21T21:00:26Z

Keep only the host-specific members in struct pcie_port and move the common members (i.e common to both host and endpoint) to struct dw_pcie. This is in preparation for adding endpoint mode support to designware driver. While at that also fix checkpatch warnings. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Bjorn Helgaas CC: Jingoo Han CC: Richard Zhu CC: Lucas Stach CC: Murali Karicheri CC: Minghuan Lian CC: Mingkai Hu CC: Roy Zang CC: Thomas Petazzoni CC: Niklas Cassel CC: Jesper Nilsson CC: Joao Pinto CC: Zhou Wang CC: Gabriele Paoloni CC: Stanimir Varbanov CC: Pratyush Anand