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Wed, 10 Jun 2026 14:17:15 +0800 (CST) From: joakim.zhang@cixtech.com To: mturquette@baylibre.com, sboyd@kernel.org, bmasney@redhat.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, p.zabel@pengutronix.de, gary.yang@cixtech.com Cc: cix-kernel-upstream@cixtech.com, linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Joakim Zhang Subject: [PATCH v3 2/5] reset: cix: add audss support to sky1 reset driver Date: Wed, 10 Jun 2026 14:17:09 +0800 Message-ID: <20260610061712.3203984-3-joakim.zhang@cixtech.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20260610061712.3203984-1-joakim.zhang@cixtech.com> References: <20260610061712.3203984-1-joakim.zhang@cixtech.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SG2PEPF000B66CE:EE_|TY0PR06MB5731:EE_ Content-Type: text/plain X-MS-Office365-Filtering-Correlation-Id: 89ba2c35-446d-42ad-d2bd-08dec6b7eb6b X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|36860700016|7416014|1800799024|376014|82310400026|22082099003|18002099003|56012099006; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: UPPs+k6ziT80dBH5NSvYEfA46Vr1Bub25AKuoHOAC+tlrx0ucCIBNQVG4na8sR9u6cr5SEERYoYq8MZ2Y+lNVMwOSZ8X5Kc0+LpPn89ynr+LjgRRqMJcfGe3/9/kTtV5fYsKJ/1GYT5q4Y81bQxKL527f5KcVxLa7nh+8zCYjTCyAV+o1R36+270Ypaj+5EflySjYD/o8vp1pk/ew9NYytvz/gdOA9q7mRUQhkcW+NMk+XDTVKf7+woz0W6AmLWujmAN/VMHuW/4VJAHLwm2J8BX3uBASj3TNjHvM2txWcBdq4FSnyOqK2Dr6dqmzYt0gWNfAUn911x4GlpK2w0MhFl/3/gwbwzRcDjoLThihrotMU0u6QrU5kuVGs2XYjs9Ow0W/bpFLfDWm52m3/NSeo/XpTbUis+VPcsC1ph8noea7NLFL48aHu1EoTD7On/u X-OriginatorOrg: cixtech.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 10 Jun 2026 06:17:16.2570 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 89ba2c35-446d-42ad-d2bd-08dec6b7eb6b X-MS-Exchange-CrossTenant-Id: 0409f77a-e53d-4d23-943e-ccade7cb4811 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=0409f77a-e53d-4d23-943e-ccade7cb4811;Ip=[222.71.101.198];Helo=[smtprelay.cixcomputing.com] X-MS-Exchange-CrossTenant-AuthSource: SG2PEPF000B66CE.apcprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: TY0PR06MB5731 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260609_231726_249712_AD6A8070 X-CRM114-Status: GOOD ( 14.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Joakim Zhang Extend the Sky1 reset controller driver for the AUDSS CRU syscon. The AUDSS block provides sixteen active-low software reset bits in one register for audio subsystem peripherals. Add a device tree match for cix,sky1-audss-system-control and the corresponding reset signal table in reset-sky1.c, reusing the existing regmap-based reset ops used by the FCH and S5 system control variants. Signed-off-by: Joakim Zhang --- drivers/reset/reset-sky1.c | 36 ++++++++++++++++++++++++++++++++++-- 1 file changed, 34 insertions(+), 2 deletions(-) diff --git a/drivers/reset/reset-sky1.c b/drivers/reset/reset-sky1.c index 78e80a533c39..88100c631cee 100644 --- a/drivers/reset/reset-sky1.c +++ b/drivers/reset/reset-sky1.c @@ -16,6 +16,7 @@ #include #include +#include #define SKY1_RESET_SLEEP_MIN_US 50 #define SKY1_RESET_SLEEP_MAX_US 100 @@ -258,6 +259,34 @@ static const struct sky1_src_variant variant_sky1_fch = { .signals_num = ARRAY_SIZE(sky1_src_fch_signals), }; +enum { + AUDSS_SW_RST = 0x78, +}; + +static const struct sky1_src_signal sky1_audss_signals[] = { + [AUDSS_I2S0_SW_RST] = { AUDSS_SW_RST, BIT(0) }, + [AUDSS_I2S1_SW_RST] = { AUDSS_SW_RST, BIT(1) }, + [AUDSS_I2S2_SW_RST] = { AUDSS_SW_RST, BIT(2) }, + [AUDSS_I2S3_SW_RST] = { AUDSS_SW_RST, BIT(3) }, + [AUDSS_I2S4_SW_RST] = { AUDSS_SW_RST, BIT(4) }, + [AUDSS_I2S5_SW_RST] = { AUDSS_SW_RST, BIT(5) }, + [AUDSS_I2S6_SW_RST] = { AUDSS_SW_RST, BIT(6) }, + [AUDSS_I2S7_SW_RST] = { AUDSS_SW_RST, BIT(7) }, + [AUDSS_I2S8_SW_RST] = { AUDSS_SW_RST, BIT(8) }, + [AUDSS_I2S9_SW_RST] = { AUDSS_SW_RST, BIT(9) }, + [AUDSS_WDT_SW_RST] = { AUDSS_SW_RST, BIT(10) }, + [AUDSS_TIMER_SW_RST] = { AUDSS_SW_RST, BIT(11) }, + [AUDSS_MB0_SW_RST] = { AUDSS_SW_RST, BIT(12) }, + [AUDSS_MB1_SW_RST] = { AUDSS_SW_RST, BIT(13) }, + [AUDSS_HDA_SW_RST] = { AUDSS_SW_RST, BIT(14) }, + [AUDSS_DMAC_SW_RST] = { AUDSS_SW_RST, BIT(15) }, +}; + +static const struct sky1_src_variant variant_sky1_audss = { + .signals = sky1_audss_signals, + .signals_num = ARRAY_SIZE(sky1_audss_signals), +}; + static struct sky1_src *to_sky1_src(struct reset_controller_dev *rcdev) { return container_of(rcdev, struct sky1_src, rcdev); @@ -329,6 +358,8 @@ static int sky1_reset_probe(struct platform_device *pdev) return -ENOMEM; variant = of_device_get_match_data(dev); + if (!variant) + return -ENODEV; sky1src->regmap = device_node_to_regmap(dev->of_node); if (IS_ERR(sky1src->regmap)) { @@ -347,8 +378,9 @@ static int sky1_reset_probe(struct platform_device *pdev) } static const struct of_device_id sky1_sysreg_of_match[] = { - { .compatible = "cix,sky1-system-control", .data = &variant_sky1_fch}, - { .compatible = "cix,sky1-s5-system-control", .data = &variant_sky1}, + { .compatible = "cix,sky1-system-control", .data = &variant_sky1_fch }, + { .compatible = "cix,sky1-s5-system-control", .data = &variant_sky1 }, + { .compatible = "cix,sky1-audss-system-control", .data = &variant_sky1_audss }, {}, }; MODULE_DEVICE_TABLE(of, sky1_sysreg_of_match); -- 2.50.1