From patchwork Thu Oct 17 14:00:11 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tzung-Bi Shih X-Patchwork-Id: 1178642 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=google.com header.i=@google.com header.b="co8u00mk"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46v9my2sNkz9sPJ for ; Fri, 18 Oct 2019 01:01:06 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2439757AbfJQOBG (ORCPT ); Thu, 17 Oct 2019 10:01:06 -0400 Received: from mail-vk1-f202.google.com ([209.85.221.202]:32923 "EHLO mail-vk1-f202.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2437401AbfJQOBF (ORCPT ); Thu, 17 Oct 2019 10:01:05 -0400 Received: by mail-vk1-f202.google.com with SMTP id a130so977636vke.0 for ; Thu, 17 Oct 2019 07:01:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=NOI1mPAa3UePrvEcyGGunRNPwSdTxXGP0axdxShAK4g=; b=co8u00mkNN4YqCXon4IqCiiYFPoEvBQ3dyNyGtx43GJvnTt1HTGWkdHp1AF7H295In ojScYXCnfdl607cZ3fMAhlTwq9G3/97EJ9XXNiHyAutDJhDBMDrM+xskz9VT0RDwOCNr HAmnARLBIZ4jRg1otlN3dmLatXmqQ6tOj2qFPQOQ8bsqhSjPmnlSKxO4mA761Trr9/sz 9l6r0JOVhV+08enzyZA1gc3p4FcZwkvrgMTY8vZ6nnJbM/8AkVD3dQQDwBH7rj2uWYbm rIg9rxmMeBYoEkccod418osq33OnrabkZ50XW4b8ylTN+RZUN7FqwaFQaw1ssV3sblNE Rfiw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=NOI1mPAa3UePrvEcyGGunRNPwSdTxXGP0axdxShAK4g=; b=JEDAHR7RrxQM0i+Eso6ukrWgONRzzpUs3TaU7+jP6u9POjRY43sBX3n9UgarpeDGlj Ad6qtgqgI1THN2XfgJg//1uX1x5Z2TwOtFIupAsBA/NaeoEY6xlBlbC+Kh6bTr9dLtAf U2GXCDFkw7AQMsnzfalB8DJzXLe68GO6dmdBQk79EOxdLQxphPDxNs8f+ENPXwu5ZRNf CgmZLNPtT/vXMWarSjD7qO7AOchP2mgku7Xt/5XuBzVE4N0A0a/0rxum6PyJ3mtAIu7E DQECr6CSu4NayLldjy8QVU17kb2wgwRcYNsjTjIrfheNIoDwLgPLnVyh3de7MYeubiS0 XdLg== X-Gm-Message-State: APjAAAUHrMLcLEd6VMPS1GKtenUPMogebV+3tzqF2DCNBW9sM4DD+IOc 4Um6qZuHCBZumijo1GBh3i8462QvpD57 X-Google-Smtp-Source: APXvYqxgcLB2fmxnEjzm9XFMmssqasHVsiK0nsCfeENxnDCDnfxF/CHrxmAxhwYjplMkMFfm0mGjb2gr9zfO X-Received: by 2002:a1f:5ed4:: with SMTP id s203mr1996971vkb.61.1571320863872; Thu, 17 Oct 2019 07:01:03 -0700 (PDT) Date: Thu, 17 Oct 2019 22:00:11 +0800 In-Reply-To: <20191017213539.00-tzungbi@google.com> Message-Id: <20191017213539.06.I0df85fe54162426e31f60a589d9b461c65df2faa@changeid> Mime-Version: 1.0 References: <20191017213539.00-tzungbi@google.com> X-Mailer: git-send-email 2.23.0.700.g56cf767bdb-goog Subject: [PATCH v4 06/10] ASoC: dt-bindings: cros_ec_codec: add SHM bindings From: Tzung-Bi Shih To: broonie@kernel.org Cc: alsa-devel@alsa-project.org, robh+dt@kernel.org, devicetree@vger.kernel.org, enric.balletbo@collabora.com, bleung@google.com, gwendal@google.com, drinkcat@google.com, cychiang@google.com, dgreid@google.com, tzungbi@google.com, Rob Herring , Benson Leung Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org - Add "reg" for binding to shared memory exposed by EC. - Add "memory-region" for binding to memory region shared by AP. Acked-by: Rob Herring Acked-by: Benson Leung Signed-off-by: Tzung-Bi Shih --- .../bindings/sound/google,cros-ec-codec.txt | 20 +++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt b/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt index 0ce9fafc78e2..8ca52dcc5572 100644 --- a/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt +++ b/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt @@ -10,8 +10,26 @@ Required properties: - compatible: Must contain "google,cros-ec-codec" - #sound-dai-cells: Should be 1. The cell specifies number of DAIs. +Optional properties: +- reg: Pysical base address and length of shared memory region from EC. + It contains 3 unsigned 32-bit integer. The first 2 integers + combine to become an unsigned 64-bit physical address. The last + one integer is length of the shared memory. +- memory-region: Shared memory region to EC. A "shared-dma-pool". See + ../reserved-memory/reserved-memory.txt for details. + Example: +{ + ... + + reserved_mem: reserved_mem { + compatible = "shared-dma-pool"; + reg = <0 0x52800000 0 0x100000>; + no-map; + }; +} + cros-ec@0 { compatible = "google,cros-ec-spi"; @@ -20,5 +38,7 @@ cros-ec@0 { cros_ec_codec: ec-codec { compatible = "google,cros-ec-codec"; #sound-dai-cells = <1>; + reg = <0x0 0x10500000 0x80000>; + memory-region = <&reserved_mem>; }; };