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Fri, 17 Jun 2022 03:47:54 -0700 Envelope-to: git@xilinx.com, saikrishna12468@gmail.com, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, linus.walleij@linaro.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Received: from [172.23.64.1] (port=60019 helo=xhdvnc101.xilinx.com) by smtp.xilinx.com with esmtp (Exim 4.90) (envelope-from ) id 1o29W6-000B0E-6x; Fri, 17 Jun 2022 03:47:54 -0700 Received: by xhdvnc101.xilinx.com (Postfix, from userid 14964) id B974621637; Fri, 17 Jun 2022 16:17:08 +0530 (IST) From: Sai Krishna Potthuri To: Linus Walleij , Rob Herring , Michal Simek , "Krzysztof Kozlowski" CC: , , , , , , Sai Krishna Potthuri Subject: [PATCH 3/4] pinctrl: pinctrl-zynqmp: Add support for output-enable and bias-high-impedance Date: Fri, 17 Jun 2022 16:16:58 +0530 Message-ID: <1655462819-28801-4-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1655462819-28801-1-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com> References: <1655462819-28801-1-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 1babcc64-0787-41ca-b0e3-08da504ed6d0 X-MS-TrafficTypeDiagnostic: BYAPR02MB4981:EE_ X-Microsoft-Antispam-PRVS: X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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DIR:OUT; SFP:1101; X-OriginatorOrg: xilinx.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jun 2022 10:47:56.7081 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 1babcc64-0787-41ca-b0e3-08da504ed6d0 X-MS-Exchange-CrossTenant-Id: 657af505-d5df-48d0-8300-c31994686c5c X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=657af505-d5df-48d0-8300-c31994686c5c; Ip=[149.199.62.198]; Helo=[xsj-pvapexch01.xlnx.xilinx.com] X-MS-Exchange-CrossTenant-AuthSource: DM3NAM02FT020.eop-nam02.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR02MB4981 Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org Add support to handle 'output-enable' and 'bias-high-impedance' configurations. As part of the output-enable configuration, ZynqMP pinctrl driver takes care of removing the pins from tri-state. Signed-off-by: Sai Krishna Potthuri --- drivers/pinctrl/pinctrl-zynqmp.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/pinctrl/pinctrl-zynqmp.c b/drivers/pinctrl/pinctrl-zynqmp.c index e14012209992..b25e9e76fbf8 100644 --- a/drivers/pinctrl/pinctrl-zynqmp.c +++ b/drivers/pinctrl/pinctrl-zynqmp.c @@ -410,6 +410,10 @@ static int zynqmp_pinconf_cfg_set(struct pinctrl_dev *pctldev, break; case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: + param = PM_PINCTRL_CONFIG_TRI_STATE; + arg = PM_PINCTRL_TRI_STATE_ENABLE; + ret = zynqmp_pm_pinctrl_set_config(pin, param, arg); + break; case PIN_CONFIG_MODE_LOW_POWER: /* * These cases are mentioned in dts but configurable @@ -418,6 +422,11 @@ static int zynqmp_pinconf_cfg_set(struct pinctrl_dev *pctldev, */ ret = 0; break; + case PIN_CONFIG_OUTPUT_ENABLE: + param = PM_PINCTRL_CONFIG_TRI_STATE; + arg = PM_PINCTRL_TRI_STATE_DISABLE; + ret = zynqmp_pm_pinctrl_set_config(pin, param, arg); + break; default: dev_warn(pctldev->dev, "unsupported configuration parameter '%u'\n",