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GET /api/1.1/patches/2229277/?format=api
{ "id": 2229277, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2229277/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260428-asoc-fsl-xcvr-event-generation-v1-1-f21cf0812c4f@gmail.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/1.1/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/" }, "msgid": "<20260428-asoc-fsl-xcvr-event-generation-v1-1-f21cf0812c4f@gmail.com>", "date": "2026-04-28T03:07:08", "name": "ASoC: fsl_xcvr: Fix event generation for cached controls", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "6e9aa706b97014afb89ac6dccfd736b2bc0865f4", "submitter": { "id": 93004, "url": "http://patchwork.ozlabs.org/api/1.1/people/93004/?format=api", "name": "Cássio Gabriel", "email": "cassiogabrielcontato@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260428-asoc-fsl-xcvr-event-generation-v1-1-f21cf0812c4f@gmail.com/mbox/", "series": [ { "id": 501752, "url": "http://patchwork.ozlabs.org/api/1.1/series/501752/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=501752", "date": "2026-04-28T03:07:08", "name": "ASoC: fsl_xcvr: Fix event generation for cached controls", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/501752/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2229277/comments/", "check": "success", "checks": "http://patchwork.ozlabs.org/api/patches/2229277/checks/", "tags": {}, "headers": { "Return-Path": "\n <linuxppc-dev+bounces-20204-incoming=patchwork.ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=cWxElCeO;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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charset=\"utf-8\"", "Content-Transfer-Encoding": "8bit", "Message-Id": "\n <20260428-asoc-fsl-xcvr-event-generation-v1-1-f21cf0812c4f@gmail.com>", "X-B4-Tracking": "v=1; b=H4sIAAAAAAAC/yXNwQrCMBCE4Vcpe3ahRmvVVxEPcTupEUllN4ZC6\n bsb9fgd5p+FDBphdG4WUpRocUoV201DcvdpBMehmlzrDu3e9extEg725FmKMgpS5hEJ6nOdsgt\n dL93uNMAdqUZeihDn38Hl+re9bw9I/lZpXT8IVeqlggAAAA==", "X-Change-ID": "20260427-asoc-fsl-xcvr-event-generation-2f57c539de28", "To": "Shengjiu Wang <shengjiu.wang@gmail.com>, Xiubo Li <Xiubo.Lee@gmail.com>,\n Fabio Estevam <festevam@gmail.com>, Nicolin Chen <nicoleotsuka@gmail.com>,\n Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>,\n Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,\n Viorel Suman <viorel.suman@nxp.com>", "Cc": "linux-sound@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,\n linux-kernel@vger.kernel.org,\n =?utf-8?q?C=C3=A1ssio_Gabriel?= <cassiogabrielcontato@gmail.com>", "X-Mailer": "b4 0.15.2", "X-Developer-Signature": "v=1; a=openpgp-sha256; l=2246;\n i=cassiogabrielcontato@gmail.com; h=from:subject:message-id;\n bh=M/DH4mZdkREffdwKLGoyCTZnaJGwxzLtvZ0z5kxN6cI=;\n b=owGbwMvMwCV2IdZeKur/u2bG02pJDJkfVJKXHzPrqixb3+9XfsVgqkItf7+RfpXZtTP9Deq/S\n jZfifPrKGVhEONikBVTZFmdtMhyT9eDq/VxKzxg5rAygQxh4OIUgIm8tGdk2Lwz0nZ2ey1L96Iz\n u3XPnJoS4KWwbMpO/92bpKpvuPkHSjH8d2rKLBb46RjkuLldvGmG3OGflg65Mp08TbM53vQbC1c\n yAQA=", "X-Developer-Key": "i=cassiogabrielcontato@gmail.com; a=openpgp;\n fpr=AB62A239BC8AE0D57F5EA848D05D3F1A5AFFEE83", "X-Spam-Status": "No, score=-0.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tDKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,RCVD_IN_DNSWL_NONE,\n\tSPF_HELO_NONE,SPF_PASS autolearn=disabled version=4.0.1 OzLabs 8", "X-Spam-Checker-Version": "SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org" }, "content": "ALSA controls should return 1 from a put callback when the control\nvalue changes. fsl_xcvr_capds_put() and fsl_xcvr_tx_cs_put() both\nupdate cached control data but always return 0, so ALSA suppresses\nchange notifications for the Capabilities Data Structure and playback\nIEC958 channel status controls.\n\nCompare the old and new cached values before copying the new data,\nand return whether the control value changed.\n\nFixes: 28564486866f (\"ASoC: fsl_xcvr: Add XCVR ASoC CPU DAI driver\")\nSigned-off-by: Cássio Gabriel <cassiogabrielcontato@gmail.com>\n---\n sound/soc/fsl/fsl_xcvr.c | 17 +++++++++++++----\n 1 file changed, 13 insertions(+), 4 deletions(-)\n\n\n---\nbase-commit: 98421d94a1a6dcc3e8582eb62bedeccecda93339\nchange-id: 20260427-asoc-fsl-xcvr-event-generation-2f57c539de28\n\nBest regards,\n-- \nCássio Gabriel <cassiogabrielcontato@gmail.com>", "diff": "diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c\nindex ee16cf681488..6677d3bf36ec 100644\n--- a/sound/soc/fsl/fsl_xcvr.c\n+++ b/sound/soc/fsl/fsl_xcvr.c\n@@ -228,10 +228,14 @@ static int fsl_xcvr_capds_put(struct snd_kcontrol *kcontrol,\n {\n \tstruct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);\n \tstruct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);\n+\tint changed;\n \n-\tmemcpy(xcvr->cap_ds, ucontrol->value.bytes.data, FSL_XCVR_CAPDS_SIZE);\n+\tchanged = memcmp(xcvr->cap_ds, ucontrol->value.bytes.data,\n+\t\t\t sizeof(xcvr->cap_ds)) != 0;\n+\tmemcpy(xcvr->cap_ds, ucontrol->value.bytes.data,\n+\t sizeof(xcvr->cap_ds));\n \n-\treturn 0;\n+\treturn changed;\n }\n \n static struct snd_kcontrol_new fsl_xcvr_earc_capds_kctl = {\n@@ -1040,10 +1044,15 @@ static int fsl_xcvr_tx_cs_put(struct snd_kcontrol *kcontrol,\n {\n \tstruct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);\n \tstruct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);\n+\tint changed;\n \n-\tmemcpy(xcvr->tx_iec958.status, ucontrol->value.iec958.status, 24);\n+\tchanged = memcmp(xcvr->tx_iec958.status,\n+\t\t\t ucontrol->value.iec958.status,\n+\t\t\t sizeof(xcvr->tx_iec958.status)) != 0;\n+\tmemcpy(xcvr->tx_iec958.status, ucontrol->value.iec958.status,\n+\t sizeof(xcvr->tx_iec958.status));\n \n-\treturn 0;\n+\treturn changed;\n }\n \n static struct snd_kcontrol_new fsl_xcvr_rx_ctls[] = {\n", "prefixes": [] }