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Merge "dsp: Add restart interface for adsp"

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Linux Build Service Account 2018-10-16 20:46:42 -07:00 • committed by Gerrit - the friendly Code Review server
commit 9d536a42c5
1 changed files with 49 additions and 0 deletions
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49
dsp/adsp-loader.c
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@ -26,12 +26,17 @@
#define Q6_PIL_GET_DELAY_MS 100
#define BOOT_CMD 1
#define SSR_RESET_CMD 1
#define IMAGE_UNLOAD_CMD 0
static ssize_t adsp_boot_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count);
static ssize_t adsp_ssr_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf, size_t count);
struct adsp_loader_private {
void *pil_h;
struct kobject *boot_adsp_obj;
@ -41,8 +46,12 @@ struct adsp_loader_private {
static struct kobj_attribute adsp_boot_attribute =
__ATTR(boot, 0220, NULL, adsp_boot_store);
static struct kobj_attribute adsp_ssr_attribute =
__ATTR(ssr, 0220, NULL, adsp_ssr_store);
static struct attribute *attrs[] = {
&adsp_boot_attribute.attr,
&adsp_ssr_attribute.attr,
NULL,
};
@ -151,6 +160,46 @@ static void adsp_loader_do(struct platform_device *pdev)
schedule_work(&adsp_ldr_work);
}
static ssize_t adsp_ssr_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf,
size_t count)
{
int ssr_command = 0;
struct subsys_device *adsp_dev = NULL;
struct platform_device *pdev = adsp_private;
struct adsp_loader_private *priv = NULL;
int rc;
dev_dbg(&pdev->dev, "%s: going to call adsp ssr\n ", __func__);
if (kstrtoint(buf, 10, &ssr_command) < 0)
return -EINVAL;
if (ssr_command != SSR_RESET_CMD)
return -EINVAL;
priv = platform_get_drvdata(pdev);
if (!priv)
return -EINVAL;
adsp_dev = (struct subsys_device *)priv->pil_h;
if (!adsp_dev)
return -EINVAL;
dev_err(&pdev->dev, "requesting for ADSP restart\n");
/* subsystem_restart_dev has worker queue to handle */
rc = subsystem_restart_dev(adsp_dev);
if (rc) {
dev_err(&pdev->dev, "subsystem_restart_dev failed\n");
return rc;
}
dev_dbg(&pdev->dev, "ADSP restarted\n");
return count;
}
static ssize_t adsp_boot_store(struct kobject *kobj,
struct kobj_attribute *attr,
const char *buf,