Commit Graph

6 Commits

Author SHA1 Message Date
Jonathan Cameron
41a316c8e5 iio: dac: ad8460: Stop using iio_device_claim_direct_scoped()
This complex cleanup.h use case of conditional guards has proved
to be more trouble that it is worth in terms of false positive compiler
warnings and hard to read code.

Move directly to the new claim/release_direct() that allow sparse
to check for unbalanced context.

Cc: Mariel Tinaco <Mariel.Tinaco@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://patch.msgid.link/20250209180624.701140-24-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-02-17 13:03:24 +00:00
Peter Zijlstra
cdd30ebb1b module: Convert symbol namespace to string literal
Clean up the existing export namespace code along the same lines of
commit 33def8498f ("treewide: Convert macro and uses of __section(foo)
to __section("foo")") and for the same reason, it is not desired for the
namespace argument to be a macro expansion itself.

Scripted using

  git grep -l -e MODULE_IMPORT_NS -e EXPORT_SYMBOL_NS | while read file;
  do
    awk -i inplace '
      /^#define EXPORT_SYMBOL_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /^#define MODULE_IMPORT_NS/ {
        gsub(/__stringify\(ns\)/, "ns");
        print;
        next;
      }
      /MODULE_IMPORT_NS/ {
        $0 = gensub(/MODULE_IMPORT_NS\(([^)]*)\)/, "MODULE_IMPORT_NS(\"\\1\")", "g");
      }
      /EXPORT_SYMBOL_NS/ {
        if ($0 ~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+),/) {
  	if ($0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/ &&
  	    $0 !~ /(EXPORT_SYMBOL_NS[^(]*)\(\)/ &&
  	    $0 !~ /^my/) {
  	  getline line;
  	  gsub(/[[:space:]]*\\$/, "");
  	  gsub(/[[:space:]]/, "", line);
  	  $0 = $0 " " line;
  	}

  	$0 = gensub(/(EXPORT_SYMBOL_NS[^(]*)\(([^,]+), ([^)]+)\)/,
  		    "\\1(\\2, \"\\3\")", "g");
        }
      }
      { print }' $file;
  done

Requested-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://mail.google.com/mail/u/2/#inbox/FMfcgzQXKWgMmjdFwwdsfgxzKpVHWPlc
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2024-12-02 11:34:44 -08:00
Julien Stephan
b4b42f28a0 iio: fix write_event_config signature
write_event_config callback use an int for state, but it is actually a
boolean. iio_ev_state_store is actually using kstrtobool to check user
input, then gives the converted boolean value to write_event_config.

Fix signature and update all iio drivers to use the new signature.

This patch has been partially written using coccinelle with the
following script:

$ cat iio-bool.cocci
// Options: --all-includes

virtual patch

@c1@
identifier iioinfo;
identifier wecfunc;
@@
 static const struct iio_info iioinfo = {
        ...,
        .write_event_config =
(
 wecfunc
|
 &wecfunc
),
        ...,
 };

@@
identifier c1.wecfunc;
identifier indio_dev, chan, type, dir, state;
@@
 int wecfunc(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir,
-int
+bool
 state) {
  ...
 }

make coccicheck MODE=patch COCCI=iio-bool.cocci M=drivers/iio

Unfortunately, this script didn't match all files:
* all write_event_config callbacks using iio_device_claim_direct_scoped
  were not detected and not patched.
* all files that do not assign and declare the write_event_config
  callback in the same file.

iio.h was also manually updated.

The patch was build tested using allmodconfig config.

cc: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20241031-iio-fix-write-event-config-signature-v2-7-2bcacbb517a2@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-11-03 20:33:44 +00:00
David Lechner
4b0cc9c0d6 iio: dac: ad8460: add SPI device match table
Add SPI device match table for ADI AD8460 DAC. As described in [1], this
is required for the module to automatically load, even when using DT.

[1]: https://lore.kernel.org/all/20210921192149.50740-1-broonie@kernel.org/

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20241018-iio-dac-ad8460-add-spi-match-table-v1-1-84a5f903bf50@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-10-21 19:19:24 +01:00
David Lechner
5d33455a90 iio: dac: ad8460: fix DT compatible
Fix the DT compatible string in the of_device_id table to match the
binding documentation. There should not be a space after the comma.

Fixes: a976ef24c6 ("iio: dac: support the ad8460 Waveform DAC")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20241018-iio-adc-ad8460-fix-dt-compatible-v1-1-058231638527@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-10-21 19:19:24 +01:00
Mariel Tinaco
a976ef24c6 iio: dac: support the ad8460 Waveform DAC
The AD8460 is a “bits in, power out” high voltage, high-power,
high-speed driver optimized for large output current (up to ±1 A)
and high slew rate (up to ±1800 V/μs) at high voltage (up to ±40 V)
into capacitive loads.

A digital engine implements user-configurable features: modes for
digital input, programmable supply current, and fault monitoring
and programmable protection settings for output current,
output voltage, and junction temperature. The AD8460 operates on
high voltage dual supplies up to ±55 V and a single low voltage
supply of 5 V.

Signed-off-by: Mariel Tinaco <Mariel.Tinaco@analog.com>
Link: https://patch.msgid.link/20240912095435.18639-3-Mariel.Tinaco@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-09-30 09:21:03 +01:00