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These new helpers simplify implementing multi-driver modules and
properly handle failure to register one driver by unregistering all
previously registered drivers.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: Kiran Padwal <kiran.padwal@smartplayin.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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A semantic patch approach was proposed with the subject
"[PATCH with Coccinelle?] Deletion of unnecessary checks
before specific function calls" on 2014-03-05.
https://lkml.org/lkml/2014/3/5/344
http://article.gmane.org/gmane.comp.version-control.coccinelle/3513/
This patch pattern application was repeated with the help of
the software "Coccinelle 1.0.0-rc22" on the source files for
Linux 3.17.1. An extract of the automatically generated
update suggestions is shown here.
It was determined that the affected source code places call
functions which perform input parameter validation already.
It is therefore not needed that a similar safety check is
repeated at the call site.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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Use devm_ioremap_resource() to make the code simpler, drop unused variable,
redundant return value check, and error-handing code.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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The driver core clears the driver data to NULL after device_release or
on probe failure. Thus, it is not needed to manually clear the device
driver data to NULL.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: David Brown <davidb@codeaurora.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Suman Anna <s-anna@ti.com>
Acked-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Two header files exist in mach-msm's include/mach directory that
are only used by the MSM iommu driver. Move these files to the
iommu driver directory and prefix them with "msm_". This allows
us to compile the MSM iommu driver on multi-platform kernels.
Acked-by: Joerg Roedel <joro@8bytes.org>
Cc: Stepan Moskovchenko <stepanm@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Fix two obvious problems:
1. We have registered msm_iommu_driver first, and need unregister it
when registered msm_iommu_ctx_driver fail
2. We don't need to kfree drvdata before kzalloc was successful.
[akpm@linux-foundation.org: remove now-unneeded initialization of ctx_drvdata, remove unneeded braces]
Signed-off-by: Libo Chen <libo.chen@huawei.com>
Acked-by: David Brown <davidb@codeaurora.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Calling clk_set_min_rate() is no better than just calling
clk_set_rate() because MSM clock code already takes care of
calling the min_rate ops if the clock really needs
clk_set_min_rate() called on it.
Cc: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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Add calls to clk_prepare and unprepare so that MSM can migrate to
the common clock framework. We never unprepare the clocks until
driver remove because the clocks are enabled and disabled in irq
context. Finer grained power management is possible in the future
via runtime power management techniques.
Cc: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
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This should ease finding similarities with different platforms,
with the intention of solving problems once in a generic framework
which everyone can use.
Compile-tested for MSM8X60.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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