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Mon, 24 Jul 2023 03:46:53 -0500 Received: from SATLEXMB04.amd.com (10.181.40.145) by SATLEXMB06.amd.com (10.181.40.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Mon, 24 Jul 2023 03:46:21 -0500 Received: from xhdlakshmis40.xilinx.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server id 15.1.2507.27 via Frontend Transport; Mon, 24 Jul 2023 03:46:16 -0500 From: Sai Krishna Potthuri To: Linus Walleij , Michal Simek , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mathieu Poirier , Tanmay Shah , Ben Levinsky , Marek Vasut , Roman Gushchin , Arnd Bergmann CC: , , , , , , Sai Krishna Potthuri Subject: [PATCH v2 2/4] firmware: xilinx: Add version check for TRISTATE configuration Date: Mon, 24 Jul 2023 14:15:52 +0530 Message-ID: <20230724084554.1924378-3-sai.krishna.potthuri@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230724084554.1924378-1-sai.krishna.potthuri@amd.com> References: <20230724084554.1924378-1-sai.krishna.potthuri@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT100:EE_|SA1PR12MB7039:EE_ X-MS-Office365-Filtering-Correlation-Id: 64d3006a-4672-4c85-0519-08db8c228903 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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If the requested configuration is TRISTATE and platform is ZYNQMP then check the version before requesting Xilinx firmware to set the configuration. Signed-off-by: Sai Krishna Potthuri Reviewed-by: Michal Simek Signed-off-by: Sai Krishna Potthuri mailto:sai.krishna.potthuri@amd.com --- drivers/firmware/xilinx/zynqmp.c | 9 +++++++++ include/linux/firmware/xlnx-zynqmp.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c index f9498e7ea694..307717f24a98 100644 --- a/drivers/firmware/xilinx/zynqmp.c +++ b/drivers/firmware/xilinx/zynqmp.c @@ -1150,6 +1150,15 @@ EXPORT_SYMBOL_GPL(zynqmp_pm_pinctrl_get_config); int zynqmp_pm_pinctrl_set_config(const u32 pin, const u32 param, u32 value) { + int ret; + + if (pm_family_code == ZYNQMP_FAMILY_CODE && + param == PM_PINCTRL_CONFIG_TRI_STATE) { + ret = zynqmp_pm_feature(PM_PINCTRL_CONFIG_PARAM_SET); + if (ret < PM_PINCTRL_PARAM_SET_VERSION) + return -EOPNOTSUPP; + } + return zynqmp_pm_invoke_fn(PM_PINCTRL_CONFIG_PARAM_SET, pin, param, value, 0, NULL); } diff --git a/include/linux/firmware/xlnx-zynqmp.h b/include/linux/firmware/xlnx-zynqmp.h index d7f94b42ad4c..6359eeea8dd7 100644 --- a/include/linux/firmware/xlnx-zynqmp.h +++ b/include/linux/firmware/xlnx-zynqmp.h @@ -34,6 +34,8 @@ /* PM API versions */ #define PM_API_VERSION_2 2 +#define PM_PINCTRL_PARAM_SET_VERSION 2 + #define ZYNQMP_FAMILY_CODE 0x23 #define VERSAL_FAMILY_CODE 0x26