From: Mengdong Lin mengdong.lin@linux.intel.com
Users start to use topology ABI from v4. ABI v5 updated existing manifest and PCM elements. Two previous patches can support these ABI updates in a backward compatible way. So if the topology file from user space is generated by ABI v4, kernel will no longer quit but continue parsing.
Signed-off-by: Mengdong Lin mengdong.lin@linux.intel.com
diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h index 33d00a4..ed9090f 100644 --- a/include/uapi/sound/asoc.h +++ b/include/uapi/sound/asoc.h @@ -83,7 +83,8 @@ #define SND_SOC_TPLG_NUM_TEXTS 16
/* ABI version */ -#define SND_SOC_TPLG_ABI_VERSION 0x5 +#define SND_SOC_TPLG_ABI_VERSION 0x5 /* current version */ +#define SND_SOC_TPLG_ABI_VERSION_MIN 0x4 /* oldest version supported */
/* Max size of TLV data */ #define SND_SOC_TPLG_TLV_SIZE 32 diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c index 0f1c8eb..2f9b64e 100644 --- a/sound/soc/soc-topology.c +++ b/sound/soc/soc-topology.c @@ -2056,7 +2056,9 @@ static int soc_valid_header(struct soc_tplg *tplg, return -EINVAL; }
- if (hdr->abi != SND_SOC_TPLG_ABI_VERSION) { + /* Support ABI from version 4 */ + if (hdr->abi > SND_SOC_TPLG_ABI_VERSION + || hdr->abi < SND_SOC_TPLG_ABI_VERSION_MIN) { dev_err(tplg->dev, "ASoC: pass %d invalid ABI version got 0x%x need 0x%x at offset 0x%lx size 0x%zx.\n", tplg->pass, hdr->abi,