From patchwork Sat Aug 10 21:46:19 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Fainelli X-Patchwork-Id: 13759641 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7FD06C3DA4A for ; Sat, 10 Aug 2024 21:47:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=ouMrUz1p5LYJt2HafZsWSeYkfY79CRhUnbjRWmiQDQo=; b=Ii5sXx25MKRDdHGM8G14XfV8Sa gAI7ow0YuBnfMyAGhvyTxzNMsiUM25Vum3YSzhuC4395b7Fw9YIoGPZVqgEXhiH/RuIpZ5CQgVsnf VCq6OSMaw8w8M7dkG0t64amVTyBszLioY/3NYulqEGnuNNyw/+NR+vf1F5en29IhpKj4g/WpuGfwA TGRS7QgJbvQpGMFw8/DwVDxSSHlbtniqS7cd56lDPJQr6D2Uz6qJo/7wCVw3js4dBCjO88vpx/jGF eJXGVbG4EXCy22jWL3+Tbhgetcs4zjeeS0ytPM2mQvJRnsW4R76JjKv1uJXSaEYsTduNR7TRSQsY1 W++Tb+VQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sctvv-0000000Ee3e-1pGc; Sat, 10 Aug 2024 21:47:31 +0000 Received: from relay.smtp-ext.broadcom.com ([192.19.144.207]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sctuo-0000000Edv5-0iU8 for linux-arm-kernel@lists.infradead.org; Sat, 10 Aug 2024 21:46:24 +0000 Received: from mail-lvn-it-01.lvn.broadcom.net (mail-lvn-it-01.lvn.broadcom.net [10.36.132.253]) by relay.smtp-ext.broadcom.com (Postfix) with ESMTP id 60DC4C0000D8; Sat, 10 Aug 2024 14:46:19 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 relay.smtp-ext.broadcom.com 60DC4C0000D8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1723326379; bh=F5mbExSO0dCKsn3DSvEd5rpr3bEqPzn3aeGGkmFpwvo=; h=From:To:Cc:Subject:Date:From; b=odtIilGnfMhlQnA0zVWxh7JqiEdMH/V+aO9iOLVgk/6aamr47tgNvlMVuo0Vmn7YH RN4qQcsekZceV8Pum8shCqclosMwnW9Hl4LC0akiXkiwi5xC+zK1Bj4RGK4f5ciDHj 7LIt58xhirDOovLRCGHBJnrvElNmLGjxCzu7hTMk= Received: from 7YHHR73.igp.broadcom.net (unknown [10.230.29.203]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail-lvn-it-01.lvn.broadcom.net (Postfix) with ESMTPSA id 04BFD18041CAC4; Sat, 10 Aug 2024 14:46:15 -0700 (PDT) From: Florian Fainelli To: linux-arm-kernel@lists.infradead.org Cc: Florian Fainelli , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sudeep Holla , Cristian Marussi , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), arm-scmi@vger.kernel.org, james.quinlan@broadcom.com, justin.chen@broadcom.com, kapil.hali@broadcom.com, bcm-kernel-feedback-list@broadcom.com Subject: [PATCH 0/2] Support for I/O width within ARM SCMI SHMEM Date: Sat, 10 Aug 2024 14:46:19 -0700 Message-Id: <20240810214621.14417-1-florian.fainelli@broadcom.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240810_144622_603003_8A3C482B X-CRM114-Status: GOOD ( 11.03 ) 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 We just got our hands on hardware that only supports 32-bit access width to the SRAM being used. This patch series adds support for the 'reg-io-width' property and allows us to specify the exact access width that the SRAM supports. Thanks! Florian Fainelli (2): dt-bindings: sram: Document reg-io-width property firmware: arm_scmi: Support 'reg-io-width' property for shared memory .../devicetree/bindings/sram/sram.yaml | 6 ++ drivers/firmware/arm_scmi/common.h | 14 +++- .../arm_scmi/scmi_transport_mailbox.c | 12 ++- .../firmware/arm_scmi/scmi_transport_optee.c | 7 +- .../firmware/arm_scmi/scmi_transport_smc.c | 10 ++- drivers/firmware/arm_scmi/shmem.c | 77 ++++++++++++++++--- 6 files changed, 102 insertions(+), 24 deletions(-)