From patchwork Tue Mar 12 09:41:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 13589709 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A6F7578274; Tue, 12 Mar 2024 09:41:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710236504; cv=none; b=DkFbcYNDPlVkjD1XCcA5IS0Z/jarFCKWsN9z1mSdLHjzyg9DrG7wt3162FC0L6D3WYMQkGHhi8zBn0VB5ae0L1T1sNSpNOKFELaHHPo++9JF+FzIsWRGnABSypNdDT/0mpev1KWkulx1H3iE7CVUoFx8obIfXitrqIx001aaiSk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710236504; c=relaxed/simple; bh=Y20q2GHyYvn4IMCZter81h5YE8yYywNCvuN8kMhR93Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=Dk8KdJJegKbdWqUC8yhYQzWOK+76ZTwYoxbO5hcI4XaT8u4UwWYiAumQepzhAYq3Fwk37a1q5MWF0LEtdFQUiNhFXfIgvQR/NfCM91NB1TivOKxQBG3QVidB0fql/YkWLTm4KO9jNdAgJYUeWBz1L6kGIu7kJUj876I8OZ3jmvY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=jc6uYaHG; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="jc6uYaHG" Received: from [127.0.1.1] (91-154-34-181.elisa-laajakaista.fi [91.154.34.181]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 675CADFB; Tue, 12 Mar 2024 10:41:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1710236473; bh=Y20q2GHyYvn4IMCZter81h5YE8yYywNCvuN8kMhR93Y=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=jc6uYaHGU7u2yNC5dKa5YQ1XkiLwVNzQIDUYAuwtx6ntZIwjn65AFWOcj9mWGq5Kr e97d1b4D2FYGHfNzTtlwlgGHo2WiBQM1LfzU4KUazirL1kUD6cJbGJWJlQr4ps6LSt svkxt/SBF2G0DkqWfrNmq76IjZOpxs4df+hcS4n0= From: Tomi Valkeinen Date: Tue, 12 Mar 2024 11:41:02 +0200 Subject: [PATCH 1/4] ASoC: dmaengine_pcm: Allow passing component name via config Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240312-xilinx-dp-audio-v1-1-696c79facbb9@ideasonboard.com> References: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> In-Reply-To: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> To: Lars-Peter Clausen , Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michal Simek Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Vishal Sagar , Anatoliy Klymenko , =?utf-8?q?P=C3=A9ter_Ujfalu?= =?utf-8?q?si?= , Tomi Valkeinen X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2760; i=tomi.valkeinen@ideasonboard.com; h=from:subject:message-id; bh=Y20q2GHyYvn4IMCZter81h5YE8yYywNCvuN8kMhR93Y=; b=owEBbQKS/ZANAwAIAfo9qoy8lh71AcsmYgBl8CNKmHTvKOCOEEFwtj9jcZSpkgC6g5K4s/BuU 3XtQVx35ZuJAjMEAAEIAB0WIQTEOAw+ll79gQef86f6PaqMvJYe9QUCZfAjSgAKCRD6PaqMvJYe 9fyiD/41i6r4AfXqSSPLB04IsYhdCuxvfRH3yFul6aSXRkSQEfUXAaskoggc5/Opc4cKTzBav7Z RszLw/BN2WmUWZqL2DSQQbIf6qAxFUXEFLsCi3MpyEIOU7cy42NbtI1ffxcwAYnsWxYGNzl30JO IlXhcIXjtMIlX4yVSgmDUDsbAHw7q93Ghh4paQ4ngzxWMRaqrTWhnAvfe7evIYJwlrD3MUqegvU ol4FV86A6d/939RKEk7VCKmr5dFeiPwfppbZmpGsRLf9GF95Q2NBlm6AxQ5gRU/Wih+cOvNy1Dc XbPWNEpLfBopB/rIkFW/bpOOoMa2H3Cf5yEYZeU5VnLt9tQWn9rtQY0uhOUhSx9jeQ5RWAX1C3/ StQZZaZhgpx0F6SGofJYU50mtbiXNQIdq/WcAU+2fPzCqhRkB5NLkU97rKdepxzWINRjyCGfilC DngtbhAq1caIa088k5MidS+1/SIsPPWZvhquL9fFUiUtXQg2+PYabQ10kR3yrOpDoFRKOqAlcLP x+SW2FvjhM9FLJk65MVABDLh54XgpnSX2Tt3QdyRSLe/dXjOuxDX4nknZ3MMQZhrhE8Bvkp3ELB YWLz+KtotBhkEKy/JFIgnGrjgufGmk4QEtjDwq9bKOWQ4Sl8WdryiXkmcQj0T4doThInY3ZKUX7 6FettnOo+TSUU+Q== X-Developer-Key: i=tomi.valkeinen@ideasonboard.com; a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 At the moment we cannot instantiate two dmaengine_pcms with the same parent device, as the components will be named the same, leading to conflicts. Add 'name' field to the snd_dmaengine_pcm_config, and use that (if defined) as the component name instead of deriving the component name from the device. Signed-off-by: Tomi Valkeinen --- include/sound/dmaengine_pcm.h | 2 ++ sound/soc/soc-core.c | 8 +++++--- sound/soc/soc-generic-dmaengine-pcm.c | 3 +++ 3 files changed, 10 insertions(+), 3 deletions(-) diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index d70c55f17df7..c11aaf8079fb 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -118,6 +118,7 @@ int snd_dmaengine_pcm_refine_runtime_hwparams( * which do not use devicetree. * @process: Callback used to apply processing on samples transferred from/to * user space. + * @name: Component name. If null, dev_name will be used. * @compat_filter_fn: Will be used as the filter function when requesting a * channel for platforms which do not use devicetree. The filter parameter * will be the DAI's DMA data. @@ -143,6 +144,7 @@ struct snd_dmaengine_pcm_config { int (*process)(struct snd_pcm_substream *substream, int channel, unsigned long hwoff, unsigned long bytes); + const char *name; dma_filter_fn compat_filter_fn; struct device *dma_dev; const char *chan_names[SNDRV_PCM_STREAM_LAST + 1]; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 516350533e73..772d67065611 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2792,10 +2792,12 @@ int snd_soc_component_initialize(struct snd_soc_component *component, INIT_LIST_HEAD(&component->list); mutex_init(&component->io_mutex); - component->name = fmt_single_name(dev, &component->id); if (!component->name) { - dev_err(dev, "ASoC: Failed to allocate name\n"); - return -ENOMEM; + component->name = fmt_single_name(dev, &component->id); + if (!component->name) { + dev_err(dev, "ASoC: Failed to allocate name\n"); + return -ENOMEM; + } } component->dev = dev; diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index 092ca09f3631..83db1a83d8ba 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -441,6 +441,9 @@ int snd_dmaengine_pcm_register(struct device *dev, pcm->config = config; pcm->flags = flags; + if (config->name) + pcm->component.name = config->name; + ret = dmaengine_pcm_request_chan_of(pcm, dev, config); if (ret) goto err_free_dma; From patchwork Tue Mar 12 09:41:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 13589710 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 71F9178670; Tue, 12 Mar 2024 09:41:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710236506; cv=none; b=WSPMO+rM2+f0yPT3FDWoiucTzn675TtrUGWp/3JwazB7iAAV8nqiwgxh92MckrhCYwlwrPtU10wT0eMHdJXh0QP9hwbJLEKB97H5+sREOJ48/SdSgIow5Fz2ulLYx7/Slfilk2d/gUodpG3jhzVgPusLzMd25paBhN3e+sRJsH8= ARC-Message-Signature: i=1; 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Tue, 12 Mar 2024 10:41:13 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1710236475; bh=eqk80KT5Hg0+A1d1PLo19GF//BADE5/tRXTctPDKUYs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=kx///rIW2/IU8urV9myiMh2wZ5sU3k0F7F/IwOVKKHosnMWgZ2jKfkT6C+fBH6SmM Q5KJwNYE0m4JaX0OTKa/j6VN/nl0r+METdxc7r1rlEu+qNSDIEpZIFcBPcNp6ZOmrc LdOtzlvH3Pu6vEufySVRiW0xCgghFO7wo+gSTndk= From: Tomi Valkeinen Date: Tue, 12 Mar 2024 11:41:03 +0200 Subject: [PATCH 2/4] dt-bindings: display/xlnx/zynqmp-dpsub: Add audio DMAs Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240312-xilinx-dp-audio-v1-2-696c79facbb9@ideasonboard.com> References: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> In-Reply-To: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> To: Lars-Peter Clausen , Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michal Simek Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Vishal Sagar , Anatoliy Klymenko , =?utf-8?q?P=C3=A9ter_Ujfalu?= =?utf-8?q?si?= , Tomi Valkeinen X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 The DP subsystem for ZynqMP support audio via two channels, and the DP DMA has dma-engines for those channels. For some reason the DT binding has not specified those channels, even if the picture included in xlnx,zynqmp-dpsub.yaml shows "2 x aud" DMAs. Add the two audio DMAs to the binding. Signed-off-by: Tomi Valkeinen --- .../devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml b/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml index 554f9d5809d4..8a56ab923cca 100644 --- a/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml +++ b/Documentation/devicetree/bindings/display/xlnx/xlnx,zynqmp-dpsub.yaml @@ -100,12 +100,16 @@ properties: - description: Video layer, plane 1 (U/V or U) - description: Video layer, plane 2 (V) - description: Graphics layer + - description: Audio channel 0 + - description: Audio channel 1 dma-names: items: - const: vid0 - const: vid1 - const: vid2 - const: gfx0 + - const: aud0 + - const: aud1 phys: description: PHYs for the DP data lanes @@ -194,11 +198,13 @@ examples: power-domains = <&pd_dp>; resets = <&reset ZYNQMP_RESET_DP>; - dma-names = "vid0", "vid1", "vid2", "gfx0"; + dma-names = "vid0", "vid1", "vid2", "gfx0", "aud0", "aud1; dmas = <&xlnx_dpdma 0>, <&xlnx_dpdma 1>, <&xlnx_dpdma 2>, - <&xlnx_dpdma 3>; + <&xlnx_dpdma 3>, + <&xlnx_dpdma 4>, + <&xlnx_dpdma 5>; phys = <&psgtr 1 PHY_TYPE_DP 0 3>, <&psgtr 0 PHY_TYPE_DP 1 3>; From patchwork Tue Mar 12 09:41:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 13589711 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1FE8479926; Tue, 12 Mar 2024 09:41:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710236507; cv=none; b=CgpCRu/EeoZLOktbFFYc8ouKrlwdD7VPxs46CamVrwMCw3T8VJfryLMLdXF2iwKX7CTG2iHENiXw9VjKveXxMFVsjylibMCzqObO6kg7a4rqosehqwjKjz0ytKC5JvTHkfR3yIIsc0aLV7eCVGCeUPvWpTkDIKNG8jAnBE/HuNA= ARC-Message-Signature: i=1; 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Tue, 12 Mar 2024 10:41:15 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1710236476; bh=j2a+fTDMVSBS7rEaJXfVLc+dzulfLunaNx5cADI5ti4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ac1FXk2B1qAQQkMqGZ+GPiSAtyiIQik+94LwBYT1JHvkMLASSOdwLDc9M35qTGtp8 LsHLFf0zwzNaqZ8bXSpdfajHfSqChmYKeIjdxsjBK4c1qGMEV3jQBF+vgrY6HgIoxx zBfzbx9jPNo+O50n+lAQIxER2uLV0tmJgiAEhDaY= From: Tomi Valkeinen Date: Tue, 12 Mar 2024 11:41:04 +0200 Subject: [PATCH 3/4] arm64: dts: zynqmp: Add DMA for DP audio Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240312-xilinx-dp-audio-v1-3-696c79facbb9@ideasonboard.com> References: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> In-Reply-To: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> To: Lars-Peter Clausen , Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michal Simek Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Vishal Sagar , Anatoliy Klymenko , =?utf-8?q?P=C3=A9ter_Ujfalu?= =?utf-8?q?si?= , Tomi Valkeinen X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 Add the two DMA channels used for the DisplayPort audio to the zynqmp_dpsub node. Signed-off-by: Tomi Valkeinen --- arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi index eaba466804bc..811d80cbf4c5 100644 --- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi +++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi @@ -1036,11 +1036,14 @@ zynqmp_dpsub: display@fd4a0000 { "dp_vtc_pixel_clk_in"; power-domains = <&zynqmp_firmware PD_DP>; resets = <&zynqmp_reset ZYNQMP_RESET_DP>; - dma-names = "vid0", "vid1", "vid2", "gfx0"; + dma-names = "vid0", "vid1", "vid2", "gfx0", + "aud0", "aud1"; dmas = <&zynqmp_dpdma ZYNQMP_DPDMA_VIDEO0>, <&zynqmp_dpdma ZYNQMP_DPDMA_VIDEO1>, <&zynqmp_dpdma ZYNQMP_DPDMA_VIDEO2>, - <&zynqmp_dpdma ZYNQMP_DPDMA_GRAPHICS>; + <&zynqmp_dpdma ZYNQMP_DPDMA_GRAPHICS>, + <&zynqmp_dpdma ZYNQMP_DPDMA_AUDIO0>, + <&zynqmp_dpdma ZYNQMP_DPDMA_AUDIO1>; ports { #address-cells = <1>; From patchwork Tue Mar 12 09:41:05 2024 Content-Type: text/plain; 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a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1710236478; bh=Omq365Kj1al0RkJPvgZIzFzSXcfY8a+g04YUU/Wsn9U=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=Me3+7XpkCvjOmgD0iGPMOG+c4XkBqN0bc8kelLSJ8HoS5h6iy9y3GEdh62J6Nd1EF p1p8TShvn5hXfT35+wbZqnoccgczZzAD8C+/DpqfUWd5S4WBrXSvKcRx69/xin9707 l4Dl5o1nGYUzJw1LE3rZZ8RfreGS9Mv/MOILGS9s= From: Tomi Valkeinen Date: Tue, 12 Mar 2024 11:41:05 +0200 Subject: [PATCH 4/4] drm: xlnx: zynqmp_dpsub: Add DP audio support Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240312-xilinx-dp-audio-v1-4-696c79facbb9@ideasonboard.com> References: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> In-Reply-To: <20240312-xilinx-dp-audio-v1-0-696c79facbb9@ideasonboard.com> To: Lars-Peter Clausen , Jaroslav Kysela , Takashi Iwai , Liam Girdwood , Mark Brown , Laurent Pinchart , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Michal Simek Cc: linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Vishal Sagar , Anatoliy Klymenko , =?utf-8?q?P=C3=A9ter_Ujfalu?= =?utf-8?q?si?= , Tomi Valkeinen X-Mailer: b4 0.13.0 X-Developer-Signature: v=1; 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a=openpgp; fpr=C4380C3E965EFD81079FF3A7FA3DAA8CBC961EF5 Add basic DisplayPort audio support. Support non-live audio playback from two PCMs (DMA channels), and the volume control in the audio mixer. As older dtb files may not have the audio DMA channels defined, the driver will just mark the audio support as disabled if the audio DMA is missing, and will continue with only display support. Note: Reset doesn't seem to work (ZYNQMP_DISP_AUD_SOFT_RESET). If we do a reset, audio playback won't start again even if, afaics, we do set up all the necessary registers. So, at the moment, resetting the audio block in dp_dai_hw_free() is commented out. Signed-off-by: Tomi Valkeinen --- drivers/gpu/drm/xlnx/Kconfig | 9 + drivers/gpu/drm/xlnx/Makefile | 1 + drivers/gpu/drm/xlnx/zynqmp_disp.c | 50 ---- drivers/gpu/drm/xlnx/zynqmp_disp_regs.h | 7 +- drivers/gpu/drm/xlnx/zynqmp_dp.c | 54 ++-- drivers/gpu/drm/xlnx/zynqmp_dp.h | 7 + drivers/gpu/drm/xlnx/zynqmp_dp_audio.c | 461 ++++++++++++++++++++++++++++++++ drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 39 +-- drivers/gpu/drm/xlnx/zynqmp_dpsub.h | 15 +- 9 files changed, 540 insertions(+), 103 deletions(-) diff --git a/drivers/gpu/drm/xlnx/Kconfig b/drivers/gpu/drm/xlnx/Kconfig index 68ee897de9d7..d88cfbaf2863 100644 --- a/drivers/gpu/drm/xlnx/Kconfig +++ b/drivers/gpu/drm/xlnx/Kconfig @@ -15,3 +15,12 @@ config DRM_ZYNQMP_DPSUB This is a DRM/KMS driver for ZynqMP DisplayPort controller. Choose this option if you have a Xilinx ZynqMP SoC with DisplayPort subsystem. + +config DRM_ZYNQMP_DPSUB_AUDIO + bool "ZynqMP DisplayPort Audio Support" + depends on DRM_ZYNQMP_DPSUB + depends on SND && SND_SOC + select SND_SOC_GENERIC_DMAENGINE_PCM + help + Choose this option to enable DisplayPort audio support in the ZynqMP + DisplayPort driver. diff --git a/drivers/gpu/drm/xlnx/Makefile b/drivers/gpu/drm/xlnx/Makefile index ea1422a39502..ab6e2ffd7e8d 100644 --- a/drivers/gpu/drm/xlnx/Makefile +++ b/drivers/gpu/drm/xlnx/Makefile @@ -1,2 +1,3 @@ zynqmp-dpsub-y := zynqmp_disp.o zynqmp_dpsub.o zynqmp_dp.o zynqmp_kms.o +zynqmp-dpsub-$(CONFIG_DRM_ZYNQMP_DPSUB_AUDIO) += zynqmp_dp_audio.o obj-$(CONFIG_DRM_ZYNQMP_DPSUB) += zynqmp-dpsub.o diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp.c b/drivers/gpu/drm/xlnx/zynqmp_disp.c index 407bc07cec69..d2bf0e2d0135 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_disp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_disp.c @@ -130,7 +130,6 @@ struct zynqmp_disp_layer { * @dpsub: Display subsystem * @blend.base: Register I/O base address for the blender * @avbuf.base: Register I/O base address for the audio/video buffer manager - * @audio.base: Registers I/O base address for the audio mixer * @layers: Layers (planes) */ struct zynqmp_disp { @@ -143,9 +142,6 @@ struct zynqmp_disp { struct { void __iomem *base; } avbuf; - struct { - void __iomem *base; - } audio; struct zynqmp_disp_layer layers[ZYNQMP_DPSUB_NUM_LAYERS]; }; @@ -807,42 +803,6 @@ static void zynqmp_disp_blend_layer_disable(struct zynqmp_disp *disp, csc_zero_offsets); } -/* ----------------------------------------------------------------------------- - * Audio Mixer - */ - -static void zynqmp_disp_audio_write(struct zynqmp_disp *disp, int reg, u32 val) -{ - writel(val, disp->audio.base + reg); -} - -/** - * zynqmp_disp_audio_enable - Enable the audio mixer - * @disp: Display controller - * - * Enable the audio mixer by de-asserting the soft reset. The audio state is set to - * default values by the reset, set the default mixer volume explicitly. - */ -static void zynqmp_disp_audio_enable(struct zynqmp_disp *disp) -{ - /* Clear the audio soft reset register as it's an non-reset flop. */ - zynqmp_disp_audio_write(disp, ZYNQMP_DISP_AUD_SOFT_RESET, 0); - zynqmp_disp_audio_write(disp, ZYNQMP_DISP_AUD_MIXER_VOLUME, - ZYNQMP_DISP_AUD_MIXER_VOLUME_NO_SCALE); -} - -/** - * zynqmp_disp_audio_disable - Disable the audio mixer - * @disp: Display controller - * - * Disable the audio mixer by asserting its soft reset. - */ -static void zynqmp_disp_audio_disable(struct zynqmp_disp *disp) -{ - zynqmp_disp_audio_write(disp, ZYNQMP_DISP_AUD_SOFT_RESET, - ZYNQMP_DISP_AUD_SOFT_RESET_AUD_SRST); -} - /* ----------------------------------------------------------------------------- * ZynqMP Display Layer & DRM Plane */ @@ -1169,8 +1129,6 @@ void zynqmp_disp_enable(struct zynqmp_disp *disp) true); zynqmp_disp_avbuf_enable_channels(disp); zynqmp_disp_avbuf_enable_audio(disp); - - zynqmp_disp_audio_enable(disp); } /** @@ -1179,8 +1137,6 @@ void zynqmp_disp_enable(struct zynqmp_disp *disp) */ void zynqmp_disp_disable(struct zynqmp_disp *disp) { - zynqmp_disp_audio_disable(disp); - zynqmp_disp_avbuf_disable_audio(disp); zynqmp_disp_avbuf_disable_channels(disp); zynqmp_disp_avbuf_disable(disp); @@ -1249,12 +1205,6 @@ int zynqmp_disp_probe(struct zynqmp_dpsub *dpsub) goto error; } - disp->audio.base = devm_platform_ioremap_resource_byname(pdev, "aud"); - if (IS_ERR(disp->audio.base)) { - ret = PTR_ERR(disp->audio.base); - goto error; - } - ret = zynqmp_disp_create_layers(disp); if (ret) goto error; diff --git a/drivers/gpu/drm/xlnx/zynqmp_disp_regs.h b/drivers/gpu/drm/xlnx/zynqmp_disp_regs.h index f92a006d5070..77cfa181a615 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_disp_regs.h +++ b/drivers/gpu/drm/xlnx/zynqmp_disp_regs.h @@ -177,12 +177,7 @@ #define ZYNQMP_DISP_AUD_MIXER_VOLUME 0x0 #define ZYNQMP_DISP_AUD_MIXER_VOLUME_NO_SCALE 0x20002000 #define ZYNQMP_DISP_AUD_MIXER_META_DATA 0x4 -#define ZYNQMP_DISP_AUD_CH_STATUS0 0x8 -#define ZYNQMP_DISP_AUD_CH_STATUS1 0xc -#define ZYNQMP_DISP_AUD_CH_STATUS2 0x10 -#define ZYNQMP_DISP_AUD_CH_STATUS3 0x14 -#define ZYNQMP_DISP_AUD_CH_STATUS4 0x18 -#define ZYNQMP_DISP_AUD_CH_STATUS5 0x1c +#define ZYNQMP_DISP_AUD_CH_STATUS(x) (0x8 + ((x) * 4)) #define ZYNQMP_DISP_AUD_CH_A_DATA0 0x20 #define ZYNQMP_DISP_AUD_CH_A_DATA1 0x24 #define ZYNQMP_DISP_AUD_CH_A_DATA2 0x28 diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index a0606fab0e22..4383ea93423c 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -1227,7 +1227,6 @@ static void zynqmp_dp_encoder_mode_set_stream(struct zynqmp_dp *dp, { u8 lane_cnt = dp->mode.lane_cnt; u32 reg, wpl; - unsigned int rate; zynqmp_dp_write(dp, ZYNQMP_DP_MAIN_STREAM_HTOTAL, mode->htotal); zynqmp_dp_write(dp, ZYNQMP_DP_MAIN_STREAM_VTOTAL, mode->vtotal); @@ -1252,18 +1251,8 @@ static void zynqmp_dp_encoder_mode_set_stream(struct zynqmp_dp *dp, reg = drm_dp_bw_code_to_link_rate(dp->mode.bw_code); zynqmp_dp_write(dp, ZYNQMP_DP_MAIN_STREAM_N_VID, reg); zynqmp_dp_write(dp, ZYNQMP_DP_MAIN_STREAM_M_VID, mode->clock); - rate = zynqmp_dpsub_get_audio_clk_rate(dp->dpsub); - if (rate) { - dev_dbg(dp->dev, "Audio rate: %d\n", rate / 512); - zynqmp_dp_write(dp, ZYNQMP_DP_TX_N_AUD, reg); - zynqmp_dp_write(dp, ZYNQMP_DP_TX_M_AUD, rate / 1000); - } } - /* Only 2 channel audio is supported now */ - if (zynqmp_dpsub_audio_enabled(dp->dpsub)) - zynqmp_dp_write(dp, ZYNQMP_DP_TX_AUDIO_CHANNELS, 1); - zynqmp_dp_write(dp, ZYNQMP_DP_USER_PIX_WIDTH, 1); /* Translate to the native 16 bit datapath based on IP core spec */ @@ -1272,6 +1261,44 @@ static void zynqmp_dp_encoder_mode_set_stream(struct zynqmp_dp *dp, zynqmp_dp_write(dp, ZYNQMP_DP_USER_DATA_COUNT_PER_LANE, reg); } +/* ----------------------------------------------------------------------------- + * Audio + */ + +void zynqmp_dp_audio_set_channels(struct zynqmp_dp *dp, + unsigned int num_channels) +{ + zynqmp_dp_write(dp, ZYNQMP_DP_TX_AUDIO_CHANNELS, num_channels - 1); +} + +void zynqmp_dp_audio_enable(struct zynqmp_dp *dp) +{ + zynqmp_dp_write(dp, ZYNQMP_DP_TX_AUDIO_CONTROL, 1); +} + +void zynqmp_dp_audio_disable(struct zynqmp_dp *dp) +{ + zynqmp_dp_write(dp, ZYNQMP_DP_TX_AUDIO_CONTROL, 0); +} + +void zynqmp_dp_audio_write_n_m(struct zynqmp_dp *dp) +{ + unsigned int rate; + u32 link_rate; + + if (!(dp->config.misc0 & ZYNQMP_DP_MAIN_STREAM_MISC0_SYNC_LOCK)) + return; + + link_rate = drm_dp_bw_code_to_link_rate(dp->mode.bw_code); + + rate = clk_get_rate(dp->dpsub->aud_clk); + + dev_dbg(dp->dev, "Audio rate: %d\n", rate / 512); + + zynqmp_dp_write(dp, ZYNQMP_DP_TX_N_AUD, link_rate); + zynqmp_dp_write(dp, ZYNQMP_DP_TX_M_AUD, rate / 1000); +} + /* ----------------------------------------------------------------------------- * DISP Configuration */ @@ -1445,8 +1472,7 @@ static void zynqmp_dp_bridge_atomic_enable(struct drm_bridge *bridge, /* Enable the encoder */ dp->enabled = true; zynqmp_dp_update_misc(dp); - if (zynqmp_dpsub_audio_enabled(dp->dpsub)) - zynqmp_dp_write(dp, ZYNQMP_DP_TX_AUDIO_CONTROL, 1); + zynqmp_dp_write(dp, ZYNQMP_DP_TX_PHY_POWER_DOWN, 0); if (dp->status == connector_status_connected) { for (i = 0; i < 3; i++) { @@ -1479,8 +1505,6 @@ static void zynqmp_dp_bridge_atomic_disable(struct drm_bridge *bridge, drm_dp_dpcd_writeb(&dp->aux, DP_SET_POWER, DP_SET_POWER_D3); zynqmp_dp_write(dp, ZYNQMP_DP_TX_PHY_POWER_DOWN, ZYNQMP_DP_TX_PHY_POWER_DOWN_ALL); - if (zynqmp_dpsub_audio_enabled(dp->dpsub)) - zynqmp_dp_write(dp, ZYNQMP_DP_TX_AUDIO_CONTROL, 0); zynqmp_dp_disp_disable(dp, old_bridge_state); diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.h b/drivers/gpu/drm/xlnx/zynqmp_dp.h index f077d7fbd0ad..a3257793e23a 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.h +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.h @@ -22,4 +22,11 @@ void zynqmp_dp_disable_vblank(struct zynqmp_dp *dp); int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub); void zynqmp_dp_remove(struct zynqmp_dpsub *dpsub); +void zynqmp_dp_audio_set_channels(struct zynqmp_dp *dp, + unsigned int num_channels); +void zynqmp_dp_audio_enable(struct zynqmp_dp *dp); +void zynqmp_dp_audio_disable(struct zynqmp_dp *dp); + +void zynqmp_dp_audio_write_n_m(struct zynqmp_dp *dp); + #endif /* _ZYNQMP_DP_H_ */ diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp_audio.c b/drivers/gpu/drm/xlnx/zynqmp_dp_audio.c new file mode 100644 index 000000000000..8fdab557f3b2 --- /dev/null +++ b/drivers/gpu/drm/xlnx/zynqmp_dp_audio.c @@ -0,0 +1,461 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ZynqMP DisplayPort Subsystem Driver - Audio support + * + * Copyright (C) 2015 - 2023 Xilinx, Inc. + * + * Authors: + * - Hyun Woo Kwon + * - Tomi Valkeinen + */ + +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include "zynqmp_disp_regs.h" +#include "zynqmp_dp.h" +#include "zynqmp_dpsub.h" + +#define ZYNQMP_DISP_AUD_SMPL_RATE_TO_CLK 512 +#define ZYNQMP_NUM_PCMS 2 + +struct zynqmp_dpsub_audio { + void __iomem *base; + + struct snd_soc_card card; + + const char *dai_name; + const char *link_names[ZYNQMP_NUM_PCMS]; + const char *pcm_names[ZYNQMP_NUM_PCMS]; + + struct snd_soc_dai_driver dai_driver; + struct snd_dmaengine_pcm_config pcm_configs[2]; + + struct snd_soc_dai_link links[ZYNQMP_NUM_PCMS]; + + struct { + struct snd_soc_dai_link_component cpu; + struct snd_soc_dai_link_component codec; + struct snd_soc_dai_link_component platform; + } components[ZYNQMP_NUM_PCMS]; + + /* + * Protects: + * - enabled_streams + * - volumes + * - current_rate + */ + struct mutex enable_lock; + + u32 enabled_streams; + u32 current_rate; + + u16 volumes[2]; +}; + +static const struct snd_pcm_hardware zynqmp_dp_pcm_hw = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_RESUME | + SNDRV_PCM_INFO_NO_PERIOD_WAKEUP, + + .buffer_bytes_max = 128 * 1024, + .period_bytes_min = 256, + .period_bytes_max = 1024 * 1024, + .periods_min = 2, + .periods_max = 256, +}; + +static int zynqmp_dp_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + + snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, + 256); + + return 0; +} + +static const struct snd_soc_ops zynqmp_dp_ops = { + .startup = zynqmp_dp_startup, +}; + +static void zynqmp_dp_audio_write(struct zynqmp_dpsub_audio *audio, int reg, + u32 val) +{ + writel(val, audio->base + reg); +} + +static int dp_dai_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params, + struct snd_soc_dai *socdai) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct zynqmp_dpsub *dpsub = + snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0)); + struct zynqmp_dpsub_audio *audio = dpsub->audio; + int ret; + u32 sample_rate; + struct snd_aes_iec958 iec = { 0 }; + unsigned long rate; + + sample_rate = params_rate(params); + + if (sample_rate != 48000 && sample_rate != 44100) + return -EINVAL; + + mutex_lock(&audio->enable_lock); + + if (audio->enabled_streams && audio->current_rate != sample_rate) { + dev_err(dpsub->dev, + "Can't change rate while playback enabled\n"); + ret = -EINVAL; + goto err_unlock; + } + + if (audio->enabled_streams > 0) { + /* Nothing to do */ + audio->enabled_streams++; + mutex_unlock(&audio->enable_lock); + return 0; + } + + audio->current_rate = sample_rate; + + /* Note: clock rate can only be changed if the clock is disabled */ + ret = clk_set_rate(dpsub->aud_clk, + sample_rate * ZYNQMP_DISP_AUD_SMPL_RATE_TO_CLK); + if (ret) { + dev_err(dpsub->dev, "can't set aud_clk to %u err:%d\n", + sample_rate * ZYNQMP_DISP_AUD_SMPL_RATE_TO_CLK, ret); + goto err_unlock; + } + + clk_prepare_enable(dpsub->aud_clk); + + rate = clk_get_rate(dpsub->aud_clk); + + /* Ignore some offset +- 10 */ + if (abs(sample_rate * ZYNQMP_DISP_AUD_SMPL_RATE_TO_CLK - rate) > 10) { + dev_err(dpsub->dev, "aud_clk offset is higher: %ld\n", + sample_rate * ZYNQMP_DISP_AUD_SMPL_RATE_TO_CLK - rate); + clk_disable_unprepare(dpsub->aud_clk); + ret = -EINVAL; + goto err_unlock; + } + + pm_runtime_get_sync(dpsub->dev); + + zynqmp_dp_audio_write(audio, ZYNQMP_DISP_AUD_MIXER_VOLUME, + audio->volumes[0] | (audio->volumes[1] << 16)); + + /* Clear the audio soft reset register as it's an non-reset flop. */ + zynqmp_dp_audio_write(audio, ZYNQMP_DISP_AUD_SOFT_RESET, 0); + + /* Only 2 channel audio is supported now */ + zynqmp_dp_audio_set_channels(dpsub->dp, 2); + + zynqmp_dp_audio_write_n_m(dpsub->dp); + + /* Channel status */ + + if (sample_rate == 48000) + iec.status[3] = IEC958_AES3_CON_FS_48000; + else + iec.status[3] = IEC958_AES3_CON_FS_44100; + + for (unsigned int i = 0; i < AES_IEC958_STATUS_SIZE / 4; ++i) { + u32 v; + + v = (iec.status[(i * 4) + 0] << 0) | + (iec.status[(i * 4) + 1] << 8) | + (iec.status[(i * 4) + 2] << 16) | + (iec.status[(i * 4) + 3] << 24); + + zynqmp_dp_audio_write(audio, ZYNQMP_DISP_AUD_CH_STATUS(i), v); + } + + zynqmp_dp_audio_enable(dpsub->dp); + + audio->enabled_streams++; + + mutex_unlock(&audio->enable_lock); + + return 0; + +err_unlock: + mutex_unlock(&audio->enable_lock); + return ret; +} + +static int dp_dai_hw_free(struct snd_pcm_substream *substream, + struct snd_soc_dai *socdai) +{ + struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); + struct zynqmp_dpsub *dpsub = + snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0)); + struct zynqmp_dpsub_audio *audio = dpsub->audio; + + mutex_lock(&audio->enable_lock); + + /* Nothing to do */ + if (audio->enabled_streams > 1) { + audio->enabled_streams--; + mutex_unlock(&audio->enable_lock); + return 0; + } + + pm_runtime_put(dpsub->dev); + + zynqmp_dp_audio_disable(dpsub->dp); + + /* + * Reset doesn't work. If we assert reset between audio stop and start, + * the audio won't start anymore. Probably we are missing writing + * some audio related registers. A/B buf? + */ + /* + zynqmp_disp_audio_write(audio, ZYNQMP_DISP_AUD_SOFT_RESET, + ZYNQMP_DISP_AUD_SOFT_RESET_AUD_SRST); + */ + + clk_disable_unprepare(dpsub->aud_clk); + + audio->current_rate = 0; + audio->enabled_streams--; + + mutex_unlock(&audio->enable_lock); + + return 0; +} + +static const struct snd_soc_dai_ops zynqmp_dp_dai_ops = { + .hw_params = dp_dai_hw_params, + .hw_free = dp_dai_hw_free, +}; + +/* + * Min = 10 * log10(0x1 / 0x2000) = -39.13 + * Max = 10 * log10(0xffffff / 0x2000) = 9.03 + */ +static const DECLARE_TLV_DB_RANGE(zynqmp_dp_tlv, + 0x0, 0x0, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, -3913, 1), + 0x1, 0x2000, TLV_DB_LINEAR_ITEM(-3913, 0), + 0x2000, 0xffff, TLV_DB_LINEAR_ITEM(0, 903), +); + +static const struct snd_kcontrol_new zynqmp_dp_snd_controls[] = { + SOC_SINGLE_TLV("Input0 Playback Volume", 0, + 0, 0xffff, 0, zynqmp_dp_tlv), + SOC_SINGLE_TLV("Input1 Playback Volume", 1, + 0, 0xffff, 0, zynqmp_dp_tlv), +}; + +/* + * Note: these read & write functions only support two "registers", 0 and 1, + * for volume 0 and 1. In other words, these are not real register read/write + * functions. + * + * This is done to support caching the volume value for the case where the + * hardware is not enabled, and also to support locking as volumes 0 and 1 + * are in the same register. + */ +static unsigned int zynqmp_dp_dai_read(struct snd_soc_component *component, + unsigned int reg) +{ + struct zynqmp_dpsub *dpsub = dev_get_drvdata(component->dev); + struct zynqmp_dpsub_audio *audio = dpsub->audio; + + return audio->volumes[reg]; +} + +static int zynqmp_dp_dai_write(struct snd_soc_component *component, + unsigned int reg, unsigned int val) +{ + struct zynqmp_dpsub *dpsub = dev_get_drvdata(component->dev); + struct zynqmp_dpsub_audio *audio = dpsub->audio; + + mutex_lock(&audio->enable_lock); + + audio->volumes[reg] = val; + + if (audio->enabled_streams) + zynqmp_dp_audio_write(audio, ZYNQMP_DISP_AUD_MIXER_VOLUME, + audio->volumes[0] | + (audio->volumes[1] << 16)); + + mutex_unlock(&audio->enable_lock); + + return 0; +} + +static const struct snd_soc_component_driver zynqmp_dp_component_driver = { + .idle_bias_on = 1, + .use_pmdown_time = 1, + .endianness = 1, + .controls = zynqmp_dp_snd_controls, + .num_controls = ARRAY_SIZE(zynqmp_dp_snd_controls), + .read = zynqmp_dp_dai_read, + .write = zynqmp_dp_dai_write, +}; + +int zynqmp_audio_init(struct zynqmp_dpsub *dpsub) +{ + struct platform_device *pdev = to_platform_device(dpsub->dev); + struct device *dev = dpsub->dev; + struct zynqmp_dpsub_audio *audio; + struct snd_soc_card *card; + void *dev_data; + int ret; + + if (!dpsub->aud_clk) + return 0; + + audio = devm_kzalloc(dev, sizeof(*audio), GFP_KERNEL); + if (!audio) + return -ENOMEM; + + dpsub->audio = audio; + + mutex_init(&audio->enable_lock); + + /* 0x2000 is the zero level, no change */ + audio->volumes[0] = 0x2000; + audio->volumes[1] = 0x2000; + + audio->dai_name = devm_kasprintf(dev, GFP_KERNEL, + "%s-dai", dev_name(dev)); + + for (unsigned int i = 0; i < ZYNQMP_NUM_PCMS; ++i) { + audio->link_names[i] = devm_kasprintf(dev, GFP_KERNEL, + "%s-dp-%u", dev_name(dev), i); + audio->pcm_names[i] = devm_kasprintf(dev, GFP_KERNEL, + "%s-pcm-%u", dev_name(dev), i); + } + + audio->base = devm_platform_ioremap_resource_byname(pdev, "aud"); + if (IS_ERR(audio->base)) + return PTR_ERR(audio->base); + + /* Create CPU DAI */ + + audio->dai_driver = (struct snd_soc_dai_driver) { + .name = audio->dai_name, + .ops = &zynqmp_dp_dai_ops, + .playback = { + .channels_min = 2, + .channels_max = 2, + .rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, + .formats = SNDRV_PCM_FMTBIT_S16_LE, + }, + }; + + ret = devm_snd_soc_register_component(dev, &zynqmp_dp_component_driver, + &audio->dai_driver, 1); + if (ret) { + dev_err(dev, "Failed to register CPU DAI\n"); + return ret; + } + + /* Create PCMs */ + + for (unsigned int i = 0; i < ZYNQMP_NUM_PCMS; ++i) { + struct snd_dmaengine_pcm_config *pcm_config = + &audio->pcm_configs[i]; + + *pcm_config = (struct snd_dmaengine_pcm_config){ + .name = audio->pcm_names[i], + .pcm_hardware = &zynqmp_dp_pcm_hw, + .prealloc_buffer_size = 64 * 1024, + .chan_names[SNDRV_PCM_STREAM_PLAYBACK] = + i == 0 ? "aud0" : "aud1", + }; + + ret = devm_snd_dmaengine_pcm_register(dev, pcm_config, 0); + if (ret) { + dev_err(dev, "Failed to register PCM %u\n", i); + return ret; + } + } + + /* Create card */ + + card = &audio->card; + card->name = "DisplayPort"; + card->long_name = "DisplayPort Monitor"; + card->driver_name = "zynqmp_dpsub"; + card->dev = dev; + card->owner = THIS_MODULE; + card->num_links = ZYNQMP_NUM_PCMS; + card->dai_link = audio->links; + + for (unsigned int i = 0; i < ZYNQMP_NUM_PCMS; ++i) { + struct snd_soc_dai_link *link = &card->dai_link[i]; + + link->ops = &zynqmp_dp_ops; + + link->name = audio->link_names[i]; + link->stream_name = audio->link_names[i]; + + link->cpus = &audio->components[i].cpu; + link->num_cpus = 1; + link->cpus[0].dai_name = audio->dai_name; + + link->codecs = &audio->components[i].codec; + link->num_codecs = 1; + link->codecs[0].name = "snd-soc-dummy"; + link->codecs[0].dai_name = "snd-soc-dummy-dai"; + + link->platforms = &audio->components[i].platform; + link->num_platforms = 1; + link->platforms[0].name = audio->pcm_names[i]; + } + + /* + * HACK: devm_snd_soc_register_card() overwrites current drvdata + * so we need to hack it back. + */ + dev_data = dev_get_drvdata(dev); + ret = devm_snd_soc_register_card(dev, card); + dev_set_drvdata(dev, dev_data); + if (ret) { + /* + * As older dtbs may not have the audio channel dmas defined, + * instead of returning an error here we'll continue and just + * mark the audio as disabled. + */ + dev_err(dev, "Failed to register sound card, disabling audio support\n"); + + devm_kfree(dev, audio); + dpsub->audio = NULL; + + return 0; + } + + return 0; +} + +void zynqmp_audio_uninit(struct zynqmp_dpsub *dpsub) +{ + struct zynqmp_dpsub_audio *audio = dpsub->audio; + + if (!audio) + return; + + if (!dpsub->aud_clk) + return; + + mutex_destroy(&audio->enable_lock); +} diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 88eb33acd5f0..2b7dd38d3def 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -56,36 +56,6 @@ static const struct dev_pm_ops zynqmp_dpsub_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(zynqmp_dpsub_suspend, zynqmp_dpsub_resume) }; -/* ----------------------------------------------------------------------------- - * DPSUB Configuration - */ - -/** - * zynqmp_dpsub_audio_enabled - If the audio is enabled - * @dpsub: DisplayPort subsystem - * - * Return if the audio is enabled depending on the audio clock. - * - * Return: true if audio is enabled, or false. - */ -bool zynqmp_dpsub_audio_enabled(struct zynqmp_dpsub *dpsub) -{ - return !!dpsub->aud_clk; -} - -/** - * zynqmp_dpsub_get_audio_clk_rate - Get the current audio clock rate - * @dpsub: DisplayPort subsystem - * - * Return: the current audio clock rate. - */ -unsigned int zynqmp_dpsub_get_audio_clk_rate(struct zynqmp_dpsub *dpsub) -{ - if (zynqmp_dpsub_audio_enabled(dpsub)) - return 0; - return clk_get_rate(dpsub->aud_clk); -} - /* ----------------------------------------------------------------------------- * Probe & Remove */ @@ -264,10 +234,17 @@ static int zynqmp_dpsub_probe(struct platform_device *pdev) drm_bridge_add(dpsub->bridge); } + ret = zynqmp_audio_init(dpsub); + if (ret) + goto err_drm_cleanup; + dev_info(&pdev->dev, "ZynqMP DisplayPort Subsystem driver probed"); return 0; +err_drm_cleanup: + if (dpsub->drm) + zynqmp_dpsub_drm_cleanup(dpsub); err_disp: zynqmp_disp_remove(dpsub); err_dp: @@ -286,6 +263,8 @@ static void zynqmp_dpsub_remove(struct platform_device *pdev) { struct zynqmp_dpsub *dpsub = platform_get_drvdata(pdev); + zynqmp_audio_uninit(dpsub); + if (dpsub->drm) zynqmp_dpsub_drm_cleanup(dpsub); else diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.h b/drivers/gpu/drm/xlnx/zynqmp_dpsub.h index 09ea01878f2a..9951d0176476 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.h +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.h @@ -12,6 +12,8 @@ #ifndef _ZYNQMP_DPSUB_H_ #define _ZYNQMP_DPSUB_H_ +#include + struct clk; struct device; struct drm_bridge; @@ -39,6 +41,8 @@ enum zynqmp_dpsub_format { ZYNQMP_DPSUB_FORMAT_YONLY, }; +struct zynqmp_dpsub_audio; + /** * struct zynqmp_dpsub - ZynqMP DisplayPort Subsystem * @dev: The physical device @@ -76,10 +80,17 @@ struct zynqmp_dpsub { struct zynqmp_dp *dp; unsigned int dma_align; + + struct zynqmp_dpsub_audio *audio; }; -bool zynqmp_dpsub_audio_enabled(struct zynqmp_dpsub *dpsub); -unsigned int zynqmp_dpsub_get_audio_clk_rate(struct zynqmp_dpsub *dpsub); +#ifdef CONFIG_DRM_ZYNQMP_DPSUB_AUDIO +int zynqmp_audio_init(struct zynqmp_dpsub *dpsub); +void zynqmp_audio_uninit(struct zynqmp_dpsub *dpsub); +#else +static inline int zynqmp_audio_init(struct zynqmp_dpsub *dpsub) { return 0; } +static inline void zynqmp_audio_uninit(struct zynqmp_dpsub *dpsub) { } +#endif void zynqmp_dpsub_release(struct zynqmp_dpsub *dpsub);