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Received: from AS8PR04MB8247.eurprd04.prod.outlook.com (2603:10a6:20b:3f2::13) by AS5PR04MB10057.eurprd04.prod.outlook.com (2603:10a6:20b:67d::9) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8445.18; Tue, 18 Feb 2025 08:58:02 +0000 Received: from AS8PR04MB8247.eurprd04.prod.outlook.com ([fe80::84f7:e2c3:ceed:c0a6]) by AS8PR04MB8247.eurprd04.prod.outlook.com ([fe80::84f7:e2c3:ceed:c0a6%5]) with mapi id 15.20.8445.017; Tue, 18 Feb 2025 08:58:02 +0000 From: Daniel Baluta To: p.zabel@pengutronix.de, shawnguo@kernel.org, mathieu.poirier@linaro.org Cc: s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, andersson@kernel.org, linux-remoteproc@vger.kernel.org, iuliana.prodan@nxp.com, laurentiu.mihalcea@nxp.com, shengjiu.wang@nxp.com, Frank.Li@nxp.com, krzk@kernel.org, Daniel Baluta Subject: [PATCH 4/5] reset: imx8mp-audiomix: Add support for DSP run/stall Date: Tue, 18 Feb 2025 10:57:11 +0200 Message-Id: <20250218085712.66690-5-daniel.baluta@nxp.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250218085712.66690-1-daniel.baluta@nxp.com> References: <20250218085712.66690-1-daniel.baluta@nxp.com> Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: VI1PR07CA0286.eurprd07.prod.outlook.com (2603:10a6:800:130::14) To AS8PR04MB8247.eurprd04.prod.outlook.com (2603:10a6:20b:3f2::13) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS8PR04MB8247:EE_|AS5PR04MB10057:EE_ X-MS-Office365-Filtering-Correlation-Id: 400a47e9-8a19-4d6e-f75f-08dd4ffa5989 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|366016|376014|52116014|7416014|1800799024|10070799003; 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charset="utf-8" We can Run/Stall the DSP via audio block control bits found in audiomix. Implement this functionality using the reset controller and use assert for Stall and deassert for Run. Signed-off-by: Daniel Baluta Reviewed-by: Frank Li Reviewed-by: Philipp Zabel --- drivers/reset/reset-imx8mp-audiomix.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/reset/reset-imx8mp-audiomix.c b/drivers/reset/reset-im= x8mp-audiomix.c index 8cc0a6b58cbc..ee56d52a7278 100644 --- a/drivers/reset/reset-imx8mp-audiomix.c +++ b/drivers/reset/reset-imx8mp-audiomix.c @@ -15,10 +15,14 @@ #define IMX8MP_AUDIOMIX_EARC_RESET_MASK 0x1 #define IMX8MP_AUDIOMIX_EARC_PHY_RESET_MASK 0x2 =20 +#define IMX8MP_AUDIOMIX_DSP_OFFSET 0x108 +#define IMX8MP_AUDIOMIX_DSP_RUNSTALL_MASK 0x20 + #define IMX8MP_AUDIOMIX_EARC 0 #define IMX8MP_AUDIOMIX_EARC_PHY 1 +#define IMX8MP_AUDIOMIX_DSP 2 =20 -#define IMX8MP_AUDIOMIX_RESET_NUM 2 +#define IMX8MP_AUDIOMIX_RESET_NUM 3 =20 struct imx8mp_reset_map { unsigned int offset; @@ -37,7 +41,11 @@ static const struct imx8mp_reset_map reset_map[IMX8MP_AU= DIOMIX_RESET_NUM] =3D { .mask =3D IMX8MP_AUDIOMIX_EARC_PHY_RESET_MASK, .active_low =3D true, }, - + [IMX8MP_AUDIOMIX_DSP] =3D { + .offset =3D IMX8MP_AUDIOMIX_DSP_OFFSET, + .mask =3D IMX8MP_AUDIOMIX_DSP_RUNSTALL_MASK, + .active_low =3D false, + }, }; =20 struct imx8mp_audiomix_reset { --=20 2.25.1