Commit Graph

5 Commits

Author SHA1 Message Date
Nicolin Chen 4e13eb7221 ASoC: fsl_asrc: Don't access members of config before checking it
sound/soc/fsl/fsl_asrc.c:250 fsl_asrc_config_pair()
	warn: variable dereferenced before check 'config' (see line 243)

git remote add next git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git remote update next
git checkout 3117bb3109
vim +/config +250 sound/soc/fsl/fsl_asrc.c

  237   */
  238  static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair)
  239  {
  240   struct asrc_config *config = pair->config;
  241   struct fsl_asrc *asrc_priv = pair->asrc_priv;
  242   enum asrc_pair_index index = pair->index;
 @243   u32 inrate = config->input_sample_rate, indiv;
  244   u32 outrate = config->output_sample_rate, outdiv;
  245   bool ideal = config->inclk == INCLK_NONE;
  246   u32 clk_index[2], div[2];
  247   int in, out, channels;
  248   struct clk *clk;
  249
 @250   if (!config) {
  251           pair_err("invalid pair config\n");
  252           return -EINVAL;
  253   }

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-08-04 15:48:41 +01:00
Dan Carpenter d387dd08e4 ASoC: fsl_asrc: fix an error code in fsl_asrc_probe()
There is a cut and paste bug so it returns success instead of the error
code.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-31 20:23:24 +01:00
Nicolin Chen d526416c4f ASoC: fsl_asrc: Fix sparse warnings in FSL_ASRC_FORMATS due to typo
reproduce: make C=1 CF=-D__CHECK_ENDIAN__

sparse warnings: (new ones prefixed by >>)

>> sound/soc/fsl/fsl_asrc.c:563:28: sparse: restricted snd_pcm_format_t degrades to integer
>> sound/soc/fsl/fsl_asrc.c:570:28: sparse: restricted snd_pcm_format_t degrades to integer

vim +563 sound/soc/fsl/fsl_asrc.c

  557          .probe = fsl_asrc_dai_probe,
  558          .playback = {
  559                  .stream_name = "ASRC-Playback",
  560                  .channels_min = 1,
  561                  .channels_max = 10,
  562                  .rates = FSL_ASRC_RATES,
> 563                  .formats = FSL_ASRC_FORMATS,
  564          },
  565          .capture = {
  566                  .stream_name = "ASRC-Capture",
  567                  .channels_min = 1,
  568                  .channels_max = 10,
  569                  .rates = FSL_ASRC_RATES,
> 570                  .formats = FSL_ASRC_FORMATS,
  571          },
  572          .ops = &fsl_asrc_dai_ops,
  573  };

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-31 20:22:33 +01:00
Fabio Estevam d3dacda939 ASoC: fsl_asrc: Use 'ifdef' for config options
Fix the following build errors that were observed by building with
make ARCH=microblaze allyesconfig:

>> sound/soc/fsl/fsl_asrc.c:906:5: warning: "CONFIG_PM_RUNTIME" is not defined [-Wundef]
    #if CONFIG_PM_RUNTIME
        ^
>> sound/soc/fsl/fsl_asrc.c:934:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]
    #if CONFIG_PM_SLEEP
        ^
>> sound/soc/fsl/fsl_asrc.c:906:5: warning: "CONFIG_PM_RUNTIME" is not defined [-Wundef]
    #if CONFIG_PM_RUNTIME
        ^
>> sound/soc/fsl/fsl_asrc.c:934:5: warning: "CONFIG_PM_SLEEP" is not defined [-Wundef]
    #if CONFIG_PM_SLEEP

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-29 20:15:47 +01:00
Nicolin Chen 3117bb3109 ASoC: fsl_asrc: Add ASRC ASoC CPU DAI and platform drivers
The Asynchronous Sample Rate Converter (ASRC) converts the sampling rate of a
signal associated with an input clock into a signal associated with a different
output clock. The driver currently works as a Front End of DPCM with other Back
Ends DAI links such as ESAI<->CS42888 and SSI<->WM8962 and SAI. It converts the
original sample rate to a common rate supported by Back Ends for playback while
converts the common rate of Back Ends to a desired rate for capture. It has 3
pairs to support three different substreams within totally 10 channels.

Signed-off-by: Nicolin Chen <nicoleotsuka@gmail.com>
Reviewed-by: Varka Bhadram <varkabhadram@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
2014-07-29 19:22:49 +01:00