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ASoC: wm_adsp: factor out getting base register for a control

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The lookup of the base register corresponding to a control is
duplicated in read and write so factor it out into a separate
function.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Richard Fitzgerald 2016-11-09 17:14:14 +00:00 committed by Mark Brown
parent a23ebba845
commit b396ebca73
1 changed files with 24 additions and 22 deletions
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46
sound/soc/codecs/wm_adsp.c
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@ -756,6 +756,24 @@ static inline struct wm_coeff_ctl *bytes_ext_to_ctl(struct soc_bytes_ext *ext)
return container_of(ext, struct wm_coeff_ctl, bytes_ext);
}
static int wm_coeff_base_reg(struct wm_coeff_ctl *ctl, unsigned int *reg)
{
const struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
struct wm_adsp *dsp = ctl->dsp;
const struct wm_adsp_region *mem;
mem = wm_adsp_find_region(dsp, alg_region->type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n",
alg_region->type);
return -EINVAL;
}
*reg = wm_adsp_region_to_reg(mem, ctl->alg_region.base + ctl->offset);
return 0;
}
static int wm_coeff_info(struct snd_kcontrol *kctl,
struct snd_ctl_elem_info *uinfo)
{
@ -843,22 +861,14 @@ static int wm_coeff_write_acked_control(struct wm_coeff_ctl *ctl,
static int wm_coeff_write_control(struct wm_coeff_ctl *ctl,
const void *buf, size_t len)
{
struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
const struct wm_adsp_region *mem;
struct wm_adsp *dsp = ctl->dsp;
void *scratch;
int ret;
unsigned int reg;
mem = wm_adsp_find_region(dsp, alg_region->type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n",
alg_region->type);
return -EINVAL;
}
reg = ctl->alg_region.base + ctl->offset;
reg = wm_adsp_region_to_reg(mem, reg);
ret = wm_coeff_base_reg(ctl, &reg);
if (ret)
return ret;
scratch = kmemdup(buf, len, GFP_KERNEL | GFP_DMA);
if (!scratch)
@ -951,22 +961,14 @@ static int wm_coeff_put_acked(struct snd_kcontrol *kctl,
static int wm_coeff_read_control(struct wm_coeff_ctl *ctl,
void *buf, size_t len)
{
struct wm_adsp_alg_region *alg_region = &ctl->alg_region;
const struct wm_adsp_region *mem;
struct wm_adsp *dsp = ctl->dsp;
void *scratch;
int ret;
unsigned int reg;
mem = wm_adsp_find_region(dsp, alg_region->type);
if (!mem) {
adsp_err(dsp, "No base for region %x\n",
alg_region->type);
return -EINVAL;
}
reg = ctl->alg_region.base + ctl->offset;
reg = wm_adsp_region_to_reg(mem, reg);
ret = wm_coeff_base_reg(ctl, &reg);
if (ret)
return ret;
scratch = kmalloc(len, GFP_KERNEL | GFP_DMA);
if (!scratch)