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The DBI2 appears to be write-only and there's no read accesses in the code
anyways, so let's remove all the read_dbi2 related code.
Link: https://lore.kernel.org/r/20200821035420.380495-33-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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The Tegra driver has its own defines for common Designware Port Logic
registers. Convert it to use the standard register definitions.
Link: https://lore.kernel.org/r/20200821035420.380495-32-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
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While the Designware controller appears to hard code the PCI_CAP_ID_EXP
capability register at 0x70, there's no need to hard code this in the
driver as it is discoverable.
Link: https://lore.kernel.org/r/20200821035420.380495-31-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Pratyush Anand <pratyush.anand@gmail.com>
Cc: linux-omap@vger.kernel.org
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The QCom driver has its own defines for common PCI config space
registers. It also hard codes the capability register offsets which are
discoverable. Convert it to use the standard register definitions.
Link: https://lore.kernel.org/r/20200821035420.380495-30-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-arm-msm@vger.kernel.org
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The i.MX6 driver has its own defines for common PCI config space
registers. It also hard codes the capability register offsets which are
discoverable. Convert it to use the standard register definitions.
Link: https://lore.kernel.org/r/20200821035420.380495-29-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
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The meson 'elbi' registers are just the Designware 'dbi' space and all
the registers accessed are either standard PCI config space or DWC port
logic registers. Convert the accesses to use the common defines and
register accessors.
Link: https://lore.kernel.org/r/20200821035420.380495-28-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Yue Wang <yue.wang@Amlogic.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: linux-amlogic@lists.infradead.org
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The common Designware init already initializes the RC PCI_COMMAND, BAR0
and BAR1 registers.
The only difference here is the common code sets SERR. If clearing SERR
is what's desired, then the Meson driver should do that instead.
Link: https://lore.kernel.org/r/20200821035420.380495-27-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Yue Wang <yue.wang@Amlogic.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: linux-amlogic@lists.infradead.org
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The meson lanes initialization is the same DWC port logic registers as
in dw_pcie_setup(). We just need to initialize 'num_lanes' to 1 to do
the same init.
dw_pcie_setup_rc() sets the PORT_LOGIC_SPEED_CHANGE bit, so setting it
can be dropped.
Link: https://lore.kernel.org/r/20200821035420.380495-26-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Yue Wang <yue.wang@Amlogic.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: linux-amlogic@lists.infradead.org
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"Fast Link Mode" is a simulation environment speed up setting which should
never be set and the default is not set. However some Amlogic platforms
have it set (by firmware presumably). See commit 87dccf09323f ("PCI:
amlogic: meson: Don't use FAST_LINK_MODE to set up link") for more
information. Let's clear it in core DWC code so we can drop some vendor
specific code.
Link: https://lore.kernel.org/r/20200821035420.380495-25-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Add a 'num_lanes' field to allow drivers to provide a the number of lanes
if not in DT or using a custom DT property. A driver can provide a
non-zero value which is used if the DT doesn't have a 'num-lanes'
property.
Link: https://lore.kernel.org/r/20200821035420.380495-24-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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PCIE_LINK_WIDTH_SPEED_CONTROL is already defined in pcie-designware.h,
so remove it from the i.MX6 driver.
Link: https://lore.kernel.org/r/20200821035420.380495-23-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
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Move the IS_ENABLED(CONFIG_PCI_MSI) check into dw_pcie_msi_init()
instead of duplicating it in all the drivers.
Link: https://lore.kernel.org/r/20200821035420.380495-22-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Richard Zhu <hongxing.zhu@nxp.com>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Yue Wang <yue.wang@Amlogic.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Xiaowei Song <songxiaowei@hisilicon.com>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Cc: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: Andy Gross <agross@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-kernel@axis.com
Cc: linux-arm-msm@vger.kernel.org
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The DWC core driver already parses and stores the 'num-viewport' DT
property, so there is no need for the Keystone driver to store it.
Link: https://lore.kernel.org/r/20200821035420.380495-21-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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The config space is divided in half for type 0 and type 1 accesses, but
this is pointless as there's only one iATU window which is
reconfigured on each access.
The only platform doing something custom is TI Keystone (surprise!).
It does its own mapping of the config space to avoid spliting the
config space and never actually uses va_cfg1_base as it has its own
config space accessors. With the splitting removed, Keystone can use the
default mapping of config space.
Link: https://lore.kernel.org/r/20200821035420.380495-20-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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The PCI bridge resources are stored in pci_host_bridge.windows, so
there's no need to store them in a DWC specific struct. There's also no
need to parse the resources and store them a 2nd time as they are mainly
used for one time setup of iATU windows.
Link: https://lore.kernel.org/r/20200821035420.380495-19-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jonathan Chocron <jonnyc@amazon.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
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The pci_host_bridge struct already has a pointer to its pci_bus, so
let's convert the one user to use the bridge struct and remove the
private 'root_bus' pointer.
Link: https://lore.kernel.org/r/20200821035420.380495-18-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
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Now that there are no more .scan_bus() callbacks, we can remove it and just
use pci_host_probe().
Link: https://lore.kernel.org/r/20200821035420.380495-17-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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TI keystone is the only Designware driver using .scan_bus(). This
function pointer is the only thing preventing the Designware driver from
using pci_host_probe(). Let's use the pci_ops.add_bus hook instead.
Link: https://lore.kernel.org/r/20200821035420.380495-16-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Similar to pcibios_add_bus(), call pci_ops.add_bus() when the root bus
is added. This allows host bridge drivers to do any setup requiring a
bus pointer.
There are currently no .add_bus() callbacks, so this is safe to do.
Link: https://lore.kernel.org/r/20200821035420.380495-15-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Now that all the platforms with custom config access handling define
their own pci_ops, let's split the default config accessors to use
different pci_ops for root and child buses. With this, we can use the
generic config accessors. The child bus accesses mainly require a
.map_bus() hook to reconfigure the iATU on each config space access.
Link: https://lore.kernel.org/r/20200821035420.380495-14-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Now that all the drivers needing custom config accessors have been
converted to define their own pci_ops, we can remove the DWC specific
function callbacks {rd,wr}_{own,other}_conf.
Link: https://lore.kernel.org/r/20200821035420.380495-13-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the HiSilicon histb driver to use the standard pci_ops
for root bus config accesses.
Link: https://lore.kernel.org/r/20200821035420.380495-12-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the Samsung Exynos driver to use the standard pci_ops for
root bus config accesses.
Link: https://lore.kernel.org/r/20200821035420.380495-11-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: linux-samsung-soc@vger.kernel.org
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Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the HiSilicon Kirin driver to use the standard pci_ops
for root bus config accesses.
Link: https://lore.kernel.org/r/20200821035420.380495-10-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Xiaowei Song <songxiaowei@hisilicon.com>
Cc: Binghui Wang <wangbinghui@hisilicon.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the Amlogic meson driver to use the standard pci_ops for
root bus config accesses.
Link: https://lore.kernel.org/r/20200821035420.380495-9-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Yue Wang <yue.wang@Amlogic.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Cc: linux-amlogic@lists.infradead.org
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Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the Tegra driver to use the standard pci_ops for root
bus config accesses.
Link: https://lore.kernel.org/r/20200821035420.380495-8-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
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Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the TI Keystone driver to use the standard pci_ops for
config accesses.
Link: https://lore.kernel.org/r/20200821035420.380495-7-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Murali Karicheri <m-karicheri2@ti.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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Now that DWC drivers can setup their own pci_ops for the root and child
buses, convert the Amazon driver to use the standard pci_ops for child
bus config accesses.
Link: https://lore.kernel.org/r/20200821035420.380495-6-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jonathan Chocron <jonnyc@amazon.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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The Designware root port config space is memory mapped accesses via the
DBI space by default. Add a common implementation
dw_pcie_own_conf_map_bus() for platforms to use.
Link: https://lore.kernel.org/r/20200821035420.380495-5-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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In preparation to allow drivers to set their own root and child pci_ops
instead of using the DWC specific config space ops, we need to make
the pci_host_bridge pointer available and move setting the bridge->ops
and bridge->child_ops pointer to before the .host_init() hook.
Link: https://lore.kernel.org/r/20200821035420.380495-4-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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The Designware DBI space contains the root bus bridge config space.
Platforms needing custom {rd,wr}_own_conf functions are also the ones
needing custom {read,write}_dbi ops functions and the access sequences
are the same.
Replace all dw_pcie_{rd,wr}_own_conf() calls with the DBI variants in
preparation to remove dw_pcie_{rd,wr}_own_conf().
Link: https://lore.kernel.org/r/20200821035420.380495-3-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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PCI host bridges often have different ways to access the root and child
bus config spaces. The host bridge drivers have invented their own
abstractions to handle this. Let's support having different root and
child bus pci_ops so these per driver abstractions can be removed.
Link: https://lore.kernel.org/r/20200821035420.380495-2-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
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The current check will result in the multiple function device
fails to initialize. So fix the check by masking out the
multiple function bit.
Link: https://lore.kernel.org/r/20200818092746.24366-1-Zhiqiang.Hou@nxp.com
Fixes: 0b24134f7888 ("PCI: dwc: Add validation that PCIe core is set to correct mode")
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
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Pull block fixes from Jens Axboe:
"A few fixes on the block side of things:
- Discard granularity fix (Coly)
- rnbd cleanups (Guoqing)
- md error handling fix (Dan)
- md sysfs fix (Junxiao)
- Fix flush request accounting, which caused an IO slowdown for some
configurations (Ming)
- Properly propagate loop flag for partition scanning (Lennart)"
* tag 'block-5.9-2020-08-14' of git://git.kernel.dk/linux-block:
block: fix double account of flush request's driver tag
loop: unset GENHD_FL_NO_PART_SCAN on LOOP_CONFIGURE
rnbd: no need to set bi_end_io in rnbd_bio_map_kern
rnbd: remove rnbd_dev_submit_io
md-cluster: Fix potential error pointer dereference in resize_bitmaps()
block: check queue's limits.discard_granularity in __blkdev_issue_discard()
md: get sysfs entry after redundancy attr group create
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Pull arch/sh updates from Rich Felker:
"Cleanup, SECCOMP_FILTER support, message printing fixes, and other
changes to arch/sh"
* tag 'sh-for-5.9' of git://git.libc.org/linux-sh: (34 commits)
sh: landisk: Add missing initialization of sh_io_port_base
sh: bring syscall_set_return_value in line with other architectures
sh: Add SECCOMP_FILTER
sh: Rearrange blocks in entry-common.S
sh: switch to copy_thread_tls()
sh: use the generic dma coherent remap allocator
sh: don't allow non-coherent DMA for NOMMU
dma-mapping: consolidate the NO_DMA definition in kernel/dma/Kconfig
sh: unexport register_trapped_io and match_trapped_io_handler
sh: don't include <asm/io_trapped.h> in <asm/io.h>
sh: move the ioremap implementation out of line
sh: move ioremap_fixed details out of <asm/io.h>
sh: remove __KERNEL__ ifdefs from non-UAPI headers
sh: sort the selects for SUPERH alphabetically
sh: remove -Werror from Makefiles
sh: Replace HTTP links with HTTPS ones
arch/sh/configs: remove obsolete CONFIG_SOC_CAMERA*
sh: stacktrace: Remove stacktrace_ops.stack()
sh: machvec: Modernize printing of kernel messages
sh: pci: Modernize printing of kernel messages
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras
Pull edac fix from Tony Luck:
"Fix for the ie31200 driver that missed the first pull"
* tag 'edac_updates_for_5.9_pt2' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
EDAC/ie31200: Fallback if host bridge device is already initialized
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"Add new hardware support to the ACPI driver for AMD SoCs, the x86 clk
driver and the Designware i2c driver (changes from Akshu Agrawal and
Pu Wen)"
* tag 'acpi-5.9-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
clk: x86: Support RV architecture
ACPI: APD: Add a fmw property is_raven
clk: x86: Change name from ST to FCH
ACPI: APD: Change name from ST to FCH
i2c: designware: Add device HID for Hygon I2C controller
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull one more power management update from Rafael Wysocki:
"Modify the intel_pstate driver to allow it to work in the passive mode
with hardware-managed P-states (HWP) enabled"
* tag 'pm-5.9-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Implement passive mode with HWP enabled
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git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Frameworks
- Make better attempt at matching device with the correct OF node
- Allow batch removal of hierarchical sub-devices
New Drivers
- Add STM32 Clocksource driver
- Add support for Khadas System Control Microcontroller
Driver Removal
- Remove unused driver for TI's SMSC ECE1099
New Device Support
- Add support for Intel Emmitsburg PCH to Intel LPSS PCI
- Add support for Intel Tiger Lake PCH-H to Intel LPSS PCI
- Add support for Dialog DA revision to Dialog DA9063
New Functionality
- Add support for AXP803 to be probed by I2C
Fix-ups
- Numerous W=1 warning fixes
- Device Tree changes (stm32-lptimer, gateworks-gsc, khadas,mcu, stmfx, cros-ec, j721e-system-controller)
- Enabled Regmap 'fast I/O' in stm32-lptimer
- Change BUG_ON to WARN_ON in arizona-core
- Remove superfluous code/initialisation (madera, max14577)
- Trivial formatting/spelling issues (madera-core, madera-i2c, da9055, max77693-private)
- Switch to of_platform_populate() in sprd-sc27xx-spi
- Expand out set/get brightness/pwm macros in lm3533-ctrlbank
- Disable IRQs on suspend in motorola-cpcap
- Clean-up error handling in intel_soc_pmic_mrfld
- Ensure correct removal order of sub-devices in madera
- Many s/HTTP/HTTPS/ link changes
- Ensure name used with Regmap is unique in syscon
Bug Fixes
- Properly 'put' clock on unbind and error in arizona-core
- Fix revision handling in da9063
- Fix 'assignment of read-only location' error in kempld-core
- Avoid using the Regmap API when atomic in rn5t618
- Redefine volatile register description in rn5t618
- Use locking to protect event handler in dln2"
* tag 'mfd-next-5.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (76 commits)
mfd: syscon: Use a unique name with regmap_config
mfd: Replace HTTP links with HTTPS ones
mfd: dln2: Run event handler loop under spinlock
mfd: madera: Improve handling of regulator unbinding
mfd: mfd-core: Add mechanism for removal of a subset of children
mfd: intel_soc_pmic_mrfld: Simplify the return expression of intel_scu_ipc_dev_iowrite8()
mfd: max14577: Remove redundant initialization of variable current_bits
mfd: rn5t618: Fix caching of battery related registers
mfd: max77693-private: Drop a duplicated word
mfd: da9055: pdata.h: Drop a duplicated word
mfd: rn5t618: Make restart handler atomic safe
mfd: kempld-core: Fix 'assignment of read-only location' error
mfd: axp20x: Allow the AXP803 to be probed by I2C
mfd: da9063: Add support for latest DA silicon revision
mfd: da9063: Fix revision handling to correctly select reg tables
dt-bindings: mfd: st,stmfx: Remove I2C unit name
dt-bindings: mfd: ti,j721e-system-controller.yaml: Add J721e system controller
mfd: motorola-cpcap: Disable interrupt for suspend
mfd: smsc-ece1099: Remove driver
mfd: core: Add OF_MFD_CELL_REG() helper
...
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Merge more updates from Andrew Morton:
"Subsystems affected by this patch series: mm/hotfixes, lz4, exec,
mailmap, mm/thp, autofs, sysctl, mm/kmemleak, mm/misc and lib"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (35 commits)
virtio: pci: constify ioreadX() iomem argument (as in generic implementation)
ntb: intel: constify ioreadX() iomem argument (as in generic implementation)
rtl818x: constify ioreadX() iomem argument (as in generic implementation)
iomap: constify ioreadX() iomem argument (as in generic implementation)
sh: use generic strncpy()
sh: clkfwk: remove r8/r16/r32
include/asm-generic/vmlinux.lds.h: align ro_after_init
mm: annotate a data race in page_zonenum()
mm/swap.c: annotate data races for lru_rotate_pvecs
mm/rmap: annotate a data race at tlb_flush_batched
mm/mempool: fix a data race in mempool_free()
mm/list_lru: fix a data race in list_lru_count_one
mm/memcontrol: fix a data race in scan count
mm/page_counter: fix various data races at memsw
mm/swapfile: fix and annotate various data races
mm/filemap.c: fix a data race in filemap_fault()
mm/swap_state: mark various intentional data races
mm/page_io: mark various intentional data races
mm/frontswap: mark various intentional data races
mm/kmemleak: silence KCSAN splats in checksum
...
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The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address so
they can be converted to a "const" version for const-safety and
consistency among architectures.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200709072837.5869-5-krzk@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address so
they can be converted to a "const" version for const-safety and
consistency among architectures.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200709072837.5869-4-krzk@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The ioreadX() helpers have inconsistent interface. On some architectures
void *__iomem address argument is a pointer to const, on some not.
Implementations of ioreadX() do not modify the memory under the address so
they can be converted to a "const" version for const-safety and
consistency among architectures.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kalle Valo <kvalo@codeaurora.org>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Rich Felker <dalias@libc.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/20200709072837.5869-3-krzk@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Patch series "iomap: Constify ioreadX() iomem argument", v3.
The ioread8/16/32() and others have inconsistent interface among the
architectures: some taking address as const, some not.
It seems there is nothing really stopping all of them to take pointer to
const.
This patch (of 4):
The ioreadX() and ioreadX_rep() helpers have inconsistent interface. On
some architectures void *__iomem address argument is a pointer to const,
on some not.
Implementations of ioreadX() do not modify the memory under the address so
they can be converted to a "const" version for const-safety and
consistency among architectures.
[krzk@kernel.org: sh: clk: fix assignment from incompatible pointer type for ioreadX()]
Link: http://lkml.kernel.org/r/20200723082017.24053-1-krzk@kernel.org
[akpm@linux-foundation.org: fix drivers/mailbox/bcm-pdc-mailbox.c]
Link: http://lkml.kernel.org/r/202007132209.Rxmv4QyS%25lkp@intel.com
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: "James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Jon Mason <jdmason@kudzu.us>
Cc: Allen Hubbe <allenbh@gmail.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Link: http://lkml.kernel.org/r/20200709072837.5869-1-krzk@kernel.org
Link: http://lkml.kernel.org/r/20200709072837.5869-2-krzk@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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SH will get below warning
${LINUX}/drivers/sh/clk/cpg.c: In function 'r8':
${LINUX}/drivers/sh/clk/cpg.c:41:17: warning: passing argument 1 of 'ioread8'
discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
return ioread8(addr);
^~~~
In file included from ${LINUX}/arch/sh/include/asm/io.h:21,
from ${LINUX}/include/linux/io.h:13,
from ${LINUX}/drivers/sh/clk/cpg.c:14:
${LINUX}/include/asm-generic/iomap.h:29:29: note: expected 'void *' but
argument is of type 'const void *'
extern unsigned int ioread8(void __iomem *);
^~~~~~~~~~~~~~
We don't need "const" for r8/r16/r32. And we don't need r8/r16/r32
themselvs. This patch cleanup these.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Alan Modra <amodra@gmail.com>
Cc: Bin Meng <bin.meng@windriver.com>
Cc: Chen Zhou <chenzhou10@huawei.com>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Romain Naour <romain.naour@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
X-MARC-Message: https://marc.info/?l=linux-renesas-soc&m=157852973916903
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This function returns the number of bytes in a THP. It is like
page_size(), but compiles to just PAGE_SIZE if CONFIG_TRANSPARENT_HUGEPAGE
is disabled.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: William Kucharski <william.kucharski@oracle.com>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Link: http://lkml.kernel.org/r/20200629151959.15779-5-willy@infradead.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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As of commit 37744feebc086908 ("sh: remove sh5 support"), support for
the SH5-based Cayman platform can no longer be selected.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Rich Felker <dalias@libc.org>
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Pull more SCSI updates from James Bottomley:
"This is the set of patches which arrived too late to stabilise in
-next for the first pull.
It's really just an lpfc driver update and an assortment of minor
fixes, all in drivers. The only core update is to the zone block
device driver, which isn't the one most people use"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: lpfc: Update lpfc version to 12.8.0.3
scsi: lpfc: Fix LUN loss after cable pull
scsi: lpfc: Fix validation of bsg reply lengths
scsi: lpfc: Fix retry of PRLI when status indicates its unsupported
scsi: lpfc: Fix oops when unloading driver while running mds diags
scsi: lpfc: Fix RSCN timeout due to incorrect gidft counter
scsi: lpfc: Fix no message shown for lpfc_hdw_queue out of range value
scsi: lpfc: Fix FCoE speed reporting
scsi: lpfc: Add missing misc_deregister() for lpfc_init()
scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetport
scsi: scsi_transport_sas: Add spaces around binary operator "|"
scsi: sd_zbc: Improve zone revalidation
scsi: libfc: Free skb in fc_disc_gpn_id_resp() for valid cases
scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del()
scsi: target: Make iscsit_register_transport() return void
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git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"The majority of this batch is conversion of the PWM period and duty
cycle to 64-bit unsigned integers, which is required so that some
types of hardware can generate the full range of signals that they're
capable of.
The remainder is mostly minor fixes and cleanups"
* tag 'pwm/for-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: bcm-iproc: handle clk_get_rate() return
pwm: Replace HTTP links with HTTPS ones
pwm: omap-dmtimer: Repair pwm_omap_dmtimer_chip's broken kerneldoc header
pwm: mediatek: Provide missing kerneldoc description for 'soc' arg
pwm: bcm-kona: Remove impossible comparison when validating duty cycle
pwm: bcm-iproc: Remove impossible comparison when validating duty cycle
pwm: iqs620a: Use lowercase hexadecimal literals for consistency
pwm: Convert period and duty cycle to u64
clk: pwm: Use 64-bit division function
backlight: pwm_bl: Use 64-bit division function
pwm: sun4i: Use nsecs_to_jiffies to avoid a division
pwm: sifive: Use 64-bit division macro
pwm: iqs620a: Use 64-bit division
pwm: imx27: Use 64-bit division macro
pwm: imx-tpm: Use 64-bit division macro
pwm: clps711x: Use 64-bit division macro
hwmon: pwm-fan: Use 64-bit division macro
drm/i915: Use 64-bit division macro
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull more xen updates from Juergen Gross:
- Remove support for running as 32-bit Xen PV-guest.
32-bit PV guests are rarely used, are lacking security fixes for
Meltdown, and can be easily replaced by PVH mode. Another series for
doing more cleanup will follow soon (removal of 32-bit-only pvops
functionality).
- Fixes and additional features for the Xen display frontend driver.
* tag 'for-linus-5.9-rc1b-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
drm/xen-front: Pass dumb buffer data offset to the backend
xen: Sync up with the canonical protocol definition in Xen
drm/xen-front: Add YUYV to supported formats
drm/xen-front: Fix misused IS_ERR_OR_NULL checks
xen/gntdev: Fix dmabuf import with non-zero sgt offset
x86/xen: drop tests for highmem in pv code
x86/xen: eliminate xen-asm_64.S
x86/xen: remove 32-bit Xen PV guest support
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