diff options
| -rw-r--r-- | sound/soc/fsl/p1022_ds.c | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c index 2c064a9824ad..309162652287 100644 --- a/sound/soc/fsl/p1022_ds.c +++ b/sound/soc/fsl/p1022_ds.c @@ -540,12 +540,6 @@ static struct platform_driver p1022_ds_driver = { .probe = p1022_ds_probe, .remove = __devexit_p(p1022_ds_remove), .driver = { - /* The name must match the 'model' property in the device tree, - * in lowercase letters, but only the part after that last - * comma. This is because some model properties have a "fsl," - * prefix. - */ - .name = "snd-soc-p1022", .owner = THIS_MODULE, }, }; @@ -559,13 +553,39 @@ static int __init p1022_ds_init(void) { struct device_node *guts_np; struct resource res; + const char *sprop; + + /* + * Check if we're actually running on a P1022DS. Older device trees + * have a model of "fsl,P1022" and newer ones use "fsl,P1022DS", so we + * need to support both. The SSI driver uses that property to link to + * the machine driver, so have to match it. + */ + sprop = of_get_property(of_find_node_by_path("/"), "model", NULL); + if (!sprop) { + pr_err("snd-soc-p1022ds: missing /model node"); + return -ENODEV; + } + + pr_debug("snd-soc-p1022ds: board model name is %s\n", sprop); - pr_info("Freescale P1022 DS ALSA SoC machine driver\n"); + /* + * The name of this board, taken from the device tree. Normally, this is a* + * fixed string, but some P1022DS device trees have a /model property of + * "fsl,P1022", and others have "fsl,P1022DS". + */ + if (strcasecmp(sprop, "fsl,p1022ds") == 0) + p1022_ds_driver.driver.name = "snd-soc-p1022ds"; + else if (strcasecmp(sprop, "fsl,p1022") == 0) + p1022_ds_driver.driver.name = "snd-soc-p1022"; + else + return -ENODEV; /* Get the physical address of the global utilities registers */ guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts"); if (of_address_to_resource(guts_np, 0, &res)) { - pr_err("p1022-ds: missing/invalid global utilities node\n"); + pr_err("snd-soc-p1022ds: missing/invalid global utils node\n"); + of_node_put(guts_np); return -EINVAL; } guts_phys = res.start; |