| Commit message (Collapse) | Author | Age | Files | Lines |
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It seems that the old developer is no longer with the company producing
this device, and the company has no plans on getting this out of the
staging directory at all, so let's drop the driver for now as it's
pretty much abandonded.
If someone want to support this and get it out of staging, we can easily
revert this change and bring it back.
Cc: Matt Sickler <matt.sickler@msk4.com>
Link: https://lore.kernel.org/r/20210610183153.2397760-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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This patch fixes the following checkpatch.pl check:
CHECK: Alignment should match open parenthesis
in files kpc2000_i2c.c kpc2000_spi.c
Signed-off-by: Nikolay Kyx <knv418@gmail.com>
Link: https://lore.kernel.org/r/20210221132246.1154-1-knv418@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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In a recent change to the SPI subsystem in commit <bebcfd272df6>
("spi: introduce `delay` field for `spi_transfer` +
spi_transfer_delay_exec()"), a new `delay` struct was added
to replace the `delay_usecs`. This change replaces the current
`delay_usecs` with `delay` for this driver.
The `spi_transfer_delay_exec()` function [in the SPI framework] makes sure
that both `delay_usecs` & `delay` are used (in this order to preserve
backwards compatibility).
Signed-off-by: Sergiu Cuciurean <sergiu.cuciurean@analog.com>
Link: https://lore.kernel.org/r/20200304073746.19664-1-sergiu.cuciurean@analog.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Resolved: CHECK: Unnecessary parentheses around table[i]
Signed-off-by: Chandra Annamaneni <chandra627@gmail.com>
Link: https://lore.kernel.org/r/20191029091638.16101-4-chandra627@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Resolved: "CHECK: Alignment should match open parenthesis" from checkpatch
Signed-off-by: Chandra Annamaneni <chandra627@gmail.com>
Link: https://lore.kernel.org/r/20191029091638.16101-3-chandra627@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Resolved: ERROR: else should follow close brace '}'
Signed-off-by: Chandra Annamaneni <chandra627@gmail.com>
Link: https://lore.kernel.org/r/20191029091638.16101-2-chandra627@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Resolved: "CHECK: Please use a blank line after.." from checkpatch.pl
Signed-off-by: Chandra Annamaneni <chandra627@gmail.com>
Link: https://lore.kernel.org/r/20191029091638.16101-1-chandra627@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Remove unnecessary variable `val` in kp_spi_read_reg() that only holds
the return value from readq().
Issue found by coccinelle using the script:
@@
local idexpression ret;
expression e;
@@
-ret =
+return
e;
-return ret;
Signed-off-by: Wambui Karuga <wambui.karugax@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Link: https://lore.kernel.org/r/20191009170703.GA2869@wambui
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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A null check before a kfree is redundant, so remove it.
This is detected by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190711140726.46732-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes checkpatch warning "Comparison to NULL could be written [...]".
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Link: https://lore.kernel.org/r/20190704060811.10330-2-simon@nikanor.nu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes issues found by checkpatch:
- "WARNING: braces {} are not necessary for single statement blocks"
- "WARNING: braces {} are not necessary for any arm of this statement"
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Link: https://lore.kernel.org/r/20190701091819.18528-1-simon@nikanor.nu
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The unconditioned jump will prohibit to ever reach the break-statement.
Deleting this needless statement, the code becomes more understandable.
Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Instead of using the function name hard coded as string, using __func__
and the '%s'-placeholder will always give the current name of the
function. When renaming a function, the debugging-messages won't have to
be rewritten.
Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replaced 'unsigned' with it's equivalent 'unsigned int' to reduce
confusion while reading the code.
Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Replaced __attribute__((packed)) with __packed. Both ways of attributing
are equivalent, but being shorter, __packed should be preferred.
This refactoring makes the core more readable.
Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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After the declarations in a function, there should be a blank line, so
that the declaration part is visibly separated from the rest.
This refactoring makes the code more readable.
Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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To fix some checkpatch-warnings some lines of this module had to be
shortened so that they do not exceed 80 characters per line.
This refactoring makes the code more readable.
Signed-off-by: Fabian Krueger <fabian.krueger@fau.de>
Signed-off-by: Michael Scheiderer <michael.scheiderer@fau.de>
Cc: <linux-kernel@i4.cs.fau.de>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Fixes checkpatch errors:
- spaces required around that '=' (ctx:VxV)
- space required before the open parenthesis '('
- spaces preferred around that '-' (ctx:VxV)
- space required before the open brace '{'
Signed-off-by: Simon Sandström <simon@nikanor.nu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since whitespace should not appear between asterisk and
variable name in a declaration statement, remove it and
fix checkpatch.pl error "foo * bar" should be "foo *bar".
Signed-off-by: Naoto Kobayashi <naoto.kobayashi4c@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kpc_spi driver unnecessarily casts from a (u64 __iomem *) to a (void
*) when invoking readq and writeq which both take a (void __iomem *) arg.
There is no need for this cast, and it actually harms us by discarding
the sparse cookie, __iomem. Make the driver stop performing this casting
operation.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kpc_spi driver stashes off an unsigned long representation of the
i/o mapping returned by devm_ioremap_nocache(). This is unnecessary, as
the only use of the unsigned long repr is to eventually be re-cast to
an (u64 __iomem *). Instead of casting the (void __iomem *) to an
(unsigned long) then a (u64 __iomem *), just remove this intermediate
step. As this intermediary is no longer used, also remove it from its
structure.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The structure kp_spi_controller_state, defined in the kpc2000_spi
driver, contains a member named chip_select which is never used after
initialization. Therefore, it should be removed for simplicity's sake.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The structure kp_spi_controller_state, defined in the kpc2000_spi
driver, contains a member named word_len which is never used after
initialization. Therefore, it should be removed for simplicity's sake.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The structure kpc_spi, defined in in the kpc2000_spi driver, contains
a member named pin_dir which is never used after initialization.
Therefore, it should be removed for simplicity's sake.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The structure kp_spi_controller_state, defined in the kpc2000_spi
driver, contains a member named phys which is never used after
initialization. Therefore, it should be removed for simplicity's sake.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kpc_spi driver does not unmap its I/O space upon error cases in the
probe() function or upon remove(). Make the driver clean up after itself
more maintainably by migrating to using the managed resource API.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The static function kp_spi_bytes_per_word() is defined in kpc2000_spi.c,
but it is completely unused. As this function is unused, it can and
should be removed.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kp_spi structure contains a member 'fifo_depth'. This member is
never used. Therefore, it should be removed.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The linux style guide prescribes that switch statements and their
subordinate case labels should be column-aligned rather than
double-indenting the case label. Make kpc2000_spi.c follow the desired
style with respect to switch/case alignment.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The kpc2000_spi.c file contains instances of unnecessary consecutive
newlines which negatively impact the readability of the file. Remove
all unnecessary consecutive newlines.
Signed-off-by: Geordan Neukum <gneukum1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There are multiple wrong formats in kpc2000_spi.c,
is time to do clean work for it.
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is an error condition that's not reported to
the spi core in kp_spi_transfer_one_message().
It should restore status value to m->status, and
return it in error path.
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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There is no need for a subdirectory for just a single .c file. So move
it out of kpc_spi/ and rename it to the module name that we want the
file to build to, saving one more linking stage.
Cc: Matt Sickler <Matt.Sickler@daktronics.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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