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No functional change. PHY APIs like phy_init()/phy_power_on() are invoked
from multiple places. Group all the PHY APIs in dra7xx_pcie_enable_phy()
and dra7xx_pcie_disable_phy() and use these functions for enabling or
disabling the PHY.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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pci-dra7xx driver had a bug in that if CONFIG_PCI_MSI config is enabled, it
doesn't support legacy interrupt. Fix it here so that both MSI and legacy
interrupts can be enabled simultaneously and the interrupt mechanism
supported by the endpoint device will be used.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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PCIe in AM57x/DRA7x devices is by default configured to work in GEN2 mode.
However there may be situations when working in GEN1 mode is desired. One
example is limitation i925 (PCIe GEN2 mode not supported at junction
temperatures < 0C).
Add support to force Root Complex to work in GEN1 mode if so desired, but
don't force GEN1 mode on any board just yet.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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No functional change. Use the new devm_gpiod_get_optional() to simplify
the probe code.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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Group all the PCI drivers that use DesignWare core in dwc directory.
dwc IP is capable of operating in both host mode and device mode and
keeping it inside the *host* directory is misleading.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Acked-By: Joao Pinto <jpinto@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Minghuan Lian <minghuan.Lian@freescale.com>
Cc: Mingkai Hu <mingkai.hu@freescale.com>
Cc: Roy Zang <tie-fei.zang@freescale.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Pratyush Anand <pratyush.anand@gmail.com>
Cc: Niklas Cassel <niklas.cassel@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Zhou Wang <wangzhou1@hisilicon.com>
Cc: Gabriele Paoloni <gabriele.paoloni@huawei.com>
Cc: Stanimir Varbanov <svarbanov@mm-sol.com>
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