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no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1 Message-ID-Hash: ZM6XBPNY5SIRSRLSSGRXPMSYM33WOJIA X-Message-ID-Hash: ZM6XBPNY5SIRSRLSSGRXPMSYM33WOJIA X-Mailman-Approved-At: Fri, 15 Mar 2024 08:36:44 +0000 X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: From: Dmitry Rokosov The 'link-name' property presents an optional DT feature that empowers users to customize the name associated with the DAI link and PCM stream. This functionality reflects the approach often employed in Qualcomm audio cards, providing enhanced flexibility in DAI naming conventions for improved system integration and userspace experience. It allows userspace program to easy determine PCM stream purpose, e.g.: ~ # cat /proc/asound/pcm 00-00: speaker (*) : : playback 1 00-01: mics (*) : : capture 1 00-02: loopback (*) : : capture 1 The previous naming approach using auto-generated fe or be strings continues to be utilized as a fallback. Signed-off-by: Dmitry Rokosov --- sound/soc/meson/meson-card-utils.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/sound/soc/meson/meson-card-utils.c b/sound/soc/meson/meson-card-utils.c index ed6c7e2f609c..7bae72905a9b 100644 --- a/sound/soc/meson/meson-card-utils.c +++ b/sound/soc/meson/meson-card-utils.c @@ -94,10 +94,14 @@ static int meson_card_set_link_name(struct snd_soc_card *card, struct device_node *node, const char *prefix) { - char *name = devm_kasprintf(card->dev, GFP_KERNEL, "%s.%s", - prefix, node->full_name); - if (!name) - return -ENOMEM; + const char *name; + + if (of_property_read_string(node, "link-name", &name)) { + name = devm_kasprintf(card->dev, GFP_KERNEL, "%s.%s", + prefix, node->full_name); + if (!name) + return -ENOMEM; + } link->name = name; link->stream_name = name;