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Subject[PATCH 4.18 075/123] ASoC: wm_adsp: Correct DSP pointer for preloader control
Date
4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ajit Pandey <ajit.pandey@cirrus.com>

commit b1470d4ce77c2d60661c7d5325d4fb8063e15ff8 upstream.

The offset of the DSP core needs to be taken into account for the DSP
preloader control get and put. Currently the dsp->preloaded variable
will only ever be read/updated on the first DSP, whilst this doesn't
affect the operation of the control the readback will be incorrect.

Signed-off-by: Ajit Pandey <ajit.pandey@cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
sound/soc/codecs/wm_adsp.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)

--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -2642,7 +2642,10 @@ int wm_adsp2_preloader_get(struct snd_kc
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
- struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
+ struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
+ struct soc_mixer_control *mc =
+ (struct soc_mixer_control *)kcontrol->private_value;
+ struct wm_adsp *dsp = &dsps[mc->shift - 1];

ucontrol->value.integer.value[0] = dsp->preloaded;

@@ -2654,10 +2657,11 @@ int wm_adsp2_preloader_put(struct snd_kc
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
- struct wm_adsp *dsp = snd_soc_component_get_drvdata(component);
+ struct wm_adsp *dsps = snd_soc_component_get_drvdata(component);
struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
struct soc_mixer_control *mc =
(struct soc_mixer_control *)kcontrol->private_value;
+ struct wm_adsp *dsp = &dsps[mc->shift - 1];
char preload[32];

snprintf(preload, ARRAY_SIZE(preload), "DSP%u Preload", mc->shift);

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