From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.1 (2015-04-28) on sa.local.altlinux.org X-Spam-Level: X-Spam-Status: No, score=-3.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,RP_MATCHES_RCVD autolearn=unavailable autolearn_force=no version=3.4.1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=basealt.ru; s=dkim; t=1772188378; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Y3EvL2Biu/FgxAk3uRxyPBzLFmQxAVTOUFDAMtEPICg=; b=Rm8CT+6/Rqm5yRcp86R3agwEefcSLmFF137EUPdm99qxQzfC3iS+42lZjBFVcsolsKuZPu R8jsDL1E2Tvb+chTDq0oO6KQN6CdTgL0VP4pvF/A6A4ka51lfsGOgx4E6RNBaX/uMNaGt6 WcO8uVDUYJuWbxJGATo0qsm1J2cnBF3u/N8ibBBG6Uz3eLoztkFRma4ed08Q3fNW3IrFlB MpQHYohkjsrPpbzUPn6SxvNA+hLs9RpM9xv+5O1nygtLPC+uLfaCP712NQiLNzOzYpZfrP WLQHrAlXuui2w/ZZZVPmehzoMUdrrHNFI7+hZigQnsIBcPjtGxoJJ7CvgWsaDg== From: Daniil Gnusarev To: gnusarevda@basealt.ru, devel-kernel@lists.altlinux.org Date: Fri, 27 Feb 2026 14:32:25 +0400 Message-ID: <20260227103236.785736-25-gnusarevda@basealt.ru> X-Mailer: git-send-email 2.42.2 In-Reply-To: <20260227103236.785736-1-gnusarevda@basealt.ru> References: <20260227103236.785736-1-gnusarevda@basealt.ru> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: [d-kernel] [PATCH 24/35] dw-hdmi: add flag SNDRV_PCM_INFO_BATCH for audio via hdmi on Baikal-M X-BeenThere: devel-kernel@lists.altlinux.org X-Mailman-Version: 2.1.12 Precedence: list Reply-To: ALT Linux kernel packages development List-Id: ALT Linux kernel packages development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Feb 2026 10:33:22 -0000 Archived-At: List-Archive: List-Post: There is an unstable sound output via HDMI with the dw-hdmi-ahb-audiŠ¾ driver when working on Baikal-M. Additional setting of the SNDRV_PCM_INFO_BATCH flag solves this problem. Let's use it. Signed-off-by: Daniil Gnusarev Do-not-upstream: this is a feature of Baikal-M --- drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c | 2 ++ drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h | 1 + drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 4 +++- 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c index e0215e635473c3..9afa3ee2b0ee8c 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c @@ -356,6 +356,8 @@ static int dw_hdmi_open(struct snd_pcm_substream *substream) int ret; runtime->hw = dw_hdmi_hw; + if (dw->data.batch_mode) + runtime->hw.info |= SNDRV_PCM_INFO_BATCH; eld = dw->data.get_eld(dw->data.hdmi); if (eld) { diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h index 3250588d39ff03..aa9f470fcd03a6 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h @@ -11,6 +11,7 @@ struct dw_hdmi_audio_data { struct dw_hdmi *hdmi; u8 *(*get_eld)(struct dw_hdmi *hdmi); unsigned regshift; + bool batch_mode; }; struct dw_hdmi_i2s_audio_data { diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index 87d03939ed1c10..d1911b94650ece 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -3531,7 +3531,9 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, audio.regshift = 2; dev_info(dev, "setting audio.regshift=%d for BE-M1000 SoC\n", audio.regshift); - } + audio.batch_mode = true; + } else + audio.batch_mode = false; hdmi->enable_audio = dw_hdmi_ahb_audio_enable; hdmi->disable_audio = dw_hdmi_ahb_audio_disable; -- 2.42.2