From patchwork Thu Oct 28 12:53:40 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 1547482 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=microchip.com header.i=@microchip.com header.a=rsa-sha256 header.s=mchp header.b=Yq5ai5sM; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=linux-i2c-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4Hg5841Yl5z9sS8 for ; Thu, 28 Oct 2021 23:53:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230260AbhJ1Mzd (ORCPT ); Thu, 28 Oct 2021 08:55:33 -0400 Received: from esa.microchip.iphmx.com ([68.232.153.233]:7110 "EHLO esa.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230248AbhJ1Mzc (ORCPT ); Thu, 28 Oct 2021 08:55:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1635425585; x=1666961585; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ApmTtNYykL0F0HhfQGV4INCWvBCa1XW3z80iRjKyXhQ=; b=Yq5ai5sMHnjkPdD8ndKqTu1tiVmEWPgndeJvhyjSEUVXJ5p02dj5Aff/ CMMFjf5WiFsyawc278JFnq06Cu1BjO6aHfj7EhO3jkSF1fvlB0fED5a1q dGvbgzPNkHohM8yqBy+DMxnV+/6PYP+wyABGZiJTstFJpelSsU1NLvPAQ Foj915tyh7fC1tf1HxplsOsi4BEmfTt2K+cB0tjDMViF/zYv3WJGH03nk 9J+PF8aNFC0B6HaCZGFvMyTV1DojkI8vnjy21npaOVr2OftK6MGk/Ct5Z IhT9mVCCESp8AWW4uZaTD//FjaJe1pweZoP6SFyNgAD4OmEH3eByIpj+s A==; IronPort-SDR: cTpWb38hlSYKwR/R48NuvONxcxkNkuBkaSUQ9xfNGAZnzLOaJrFOa+3buvld8HFEuRMa9NNYrl wUpPHit/DvMbwmgKv/HKU2STprx0k1z/Sttt7WdSNlhHifLaFd8ENb75GL87ZG1gCEyRwB5OQN 12rn0p4tDhXKkoJ3BTNR1bgVuZt8jU2UD3wlYTeYF7YBh0b2MWiyd5KfsmDgcK901BVu0b4IO0 Z0GW/fuI7KKEJdbgEM+7D6djiAlcGxb98q+PsaaSgBshqGjzM/3UZswETkk4CejfFOI5Yr738b Fp9XxTWmFz888CgwAIGn5cKA X-IronPort-AV: E=Sophos;i="5.87,189,1631602800"; d="scan'208";a="141996004" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa3.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 28 Oct 2021 05:53:05 -0700 Received: from chn-vm-ex02.mchp-main.com (10.10.85.144) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.14; Thu, 28 Oct 2021 05:53:04 -0700 Received: from soft-dev3-1.microsemi.net (10.10.115.15) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server id 15.1.2176.14 via Frontend Transport; Thu, 28 Oct 2021 05:53:03 -0700 From: Horatiu Vultur To: , , , , CC: Horatiu Vultur Subject: [PATCH v2 1/2] dt-bindings: i2c-mux-gpmux: Add property for settle time Date: Thu, 28 Oct 2021 14:53:40 +0200 Message-ID: <20211028125341.2457171-2-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20211028125341.2457171-1-horatiu.vultur@microchip.com> References: <20211028125341.2457171-1-horatiu.vultur@microchip.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-i2c@vger.kernel.org Some HW requires some time for the signals to settle after the muxing is changed. Allow this time to be specified in device tree. Signed-off-by: Horatiu Vultur --- Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.yaml b/Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.yaml index 9b0603a72f40..4fef5aad360b 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.yaml +++ b/Documentation/devicetree/bindings/i2c/i2c-mux-gpmux.yaml @@ -67,6 +67,11 @@ properties: The properties of mux-locked and parent-locked multiplexers are discussed in more detail in Documentation/i2c/i2c-topology.rst. + settle-time-us: + default: 0 + description: + The time required for the signals to settle. + required: - compatible - i2c-parent