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Subject[PATCH 2/2] ASoC: wm_adsp: Make DSP name configurable by codec driver
Date
Instead of harcoding that a core must always be called "DSPn"
add a name member to struct wm_adsp so that the owning codec
driver can provide a custom name. This allows for re-use of
the wm_adsp driver with parts where the processing cores are
named differently.

If no name is provided the default DSPn name is used.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
---
sound/soc/codecs/wm_adsp.c | 69 ++++++++++++++++++++++++++++++++--------------
sound/soc/codecs/wm_adsp.h | 2 ++
2 files changed, 50 insertions(+), 21 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 1c12c78dbcce..f61656070225 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -10,6 +10,7 @@
* published by the Free Software Foundation.
*/

+#include <linux/ctype.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
@@ -35,15 +36,15 @@
#include "wm_adsp.h"

#define adsp_crit(_dsp, fmt, ...) \
- dev_crit(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
+ dev_crit(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_err(_dsp, fmt, ...) \
- dev_err(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
+ dev_err(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_warn(_dsp, fmt, ...) \
- dev_warn(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
+ dev_warn(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_info(_dsp, fmt, ...) \
- dev_info(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
+ dev_info(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)
#define adsp_dbg(_dsp, fmt, ...) \
- dev_dbg(_dsp->dev, "DSP%d: " fmt, _dsp->num, ##__VA_ARGS__)
+ dev_dbg(_dsp->dev, "%s: " fmt, _dsp->name, ##__VA_ARGS__)

#define ADSP1_CONTROL_1 0x00
#define ADSP1_CONTROL_2 0x02
@@ -608,7 +609,6 @@ static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
struct snd_soc_component *component)
{
struct dentry *root = NULL;
- char *root_name;
int i;

if (!component->debugfs_root) {
@@ -616,13 +616,7 @@ static void wm_adsp2_init_debugfs(struct wm_adsp *dsp,
goto err;
}

- root_name = kmalloc(PAGE_SIZE, GFP_KERNEL);
- if (!root_name)
- goto err;
-
- snprintf(root_name, PAGE_SIZE, "dsp%d", dsp->num);
- root = debugfs_create_dir(root_name, component->debugfs_root);
- kfree(root_name);
+ root = debugfs_create_dir(dsp->name, component->debugfs_root);

if (!root)
goto err;
@@ -1315,12 +1309,12 @@ static int wm_adsp_create_control(struct wm_adsp *dsp,
switch (dsp->fw_ver) {
case 0:
case 1:
- snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "DSP%d %s %x",
- dsp->num, region_name, alg_region->alg);
+ snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN, "%s %s %x",
+ dsp->name, region_name, alg_region->alg);
break;
default:
ret = snprintf(name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN,
- "DSP%d%c %.12s %x", dsp->num, *region_name,
+ "%s%c %.12s %x", dsp->name, *region_name,
wm_adsp_fw_text[dsp->fw], alg_region->alg);

/* Truncate the subname from the start if it is too long */
@@ -1648,7 +1642,7 @@ static int wm_adsp_load(struct wm_adsp *dsp)
if (file == NULL)
return -ENOMEM;

- snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.wmfw", dsp->part, dsp->num,
+ snprintf(file, PAGE_SIZE, "%s-%s-%s.wmfw", dsp->part, dsp->fwf_name,
wm_adsp_fw[dsp->fw].file);
file[PAGE_SIZE - 1] = '\0';

@@ -2226,7 +2220,7 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
if (file == NULL)
return -ENOMEM;

- snprintf(file, PAGE_SIZE, "%s-dsp%d-%s.bin", dsp->part, dsp->num,
+ snprintf(file, PAGE_SIZE, "%s-%s-%s.bin", dsp->part, dsp->fwf_name,
wm_adsp_fw[dsp->fw].file);
file[PAGE_SIZE - 1] = '\0';

@@ -2398,8 +2392,38 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
return ret;
}

+static int wm_adsp_create_name(struct wm_adsp *dsp)
+{
+ char *p;
+
+ if (!dsp->name) {
+ dsp->name = devm_kasprintf(dsp->dev, GFP_KERNEL, "DSP%d",
+ dsp->num);
+ if (!dsp->name)
+ return -ENOMEM;
+ }
+
+ if (!dsp->fwf_name) {
+ p = devm_kstrdup(dsp->dev, dsp->name, GFP_KERNEL);
+ if (!p)
+ return -ENOMEM;
+
+ dsp->fwf_name = p;
+ for (; *p != 0; ++p)
+ *p = tolower(*p);
+ }
+
+ return 0;
+}
+
int wm_adsp1_init(struct wm_adsp *dsp)
{
+ int ret;
+
+ ret = wm_adsp_create_name(dsp);
+ if (ret)
+ return ret;
+
INIT_LIST_HEAD(&dsp->alg_regions);

mutex_init(&dsp->pwr_lock);
@@ -2672,7 +2696,7 @@ int wm_adsp2_preloader_put(struct snd_kcontrol *kcontrol,
struct wm_adsp *dsp = &dsps[mc->shift - 1];
char preload[32];

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

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

@@ -2867,8 +2891,7 @@ int wm_adsp2_component_probe(struct wm_adsp *dsp, struct snd_soc_component *comp
{
char preload[32];

- snprintf(preload, ARRAY_SIZE(preload), "DSP%d Preload", dsp->num);
-
+ snprintf(preload, ARRAY_SIZE(preload), "%s Preload", dsp->name);
snd_soc_component_disable_pin(component, preload);

wm_adsp2_init_debugfs(dsp, component);
@@ -2891,6 +2914,10 @@ int wm_adsp2_init(struct wm_adsp *dsp)
{
int ret;

+ ret = wm_adsp_create_name(dsp);
+ if (ret)
+ return ret;
+
switch (dsp->rev) {
case 0:
/*
diff --git a/sound/soc/codecs/wm_adsp.h b/sound/soc/codecs/wm_adsp.h
index 8d58cb9d9bb9..4b8778b0b06c 100644
--- a/sound/soc/codecs/wm_adsp.h
+++ b/sound/soc/codecs/wm_adsp.h
@@ -57,6 +57,8 @@ struct wm_adsp_compr_buf;

struct wm_adsp {
const char *part;
+ const char *name;
+ const char *fwf_name;
int rev;
int num;
int type;
--
2.11.0
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