Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753139AbcDUPH5 (ORCPT ); Thu, 21 Apr 2016 11:07:57 -0400 Received: from mail-wm0-f46.google.com ([74.125.82.46]:36975 "EHLO mail-wm0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752879AbcDUPH4 (ORCPT ); Thu, 21 Apr 2016 11:07:56 -0400 From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: kernel@stlinux.com, maxime.coquelin@st.com, Lee Jones Subject: [[PATCH v2] 7/8] ARM: dts: STiH407: Move over to using the 'reserved-memory' API for obtaining DMA memory Date: Thu, 21 Apr 2016 16:07:46 +0100 Message-Id: <1461251267-14897-7-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 2.8.0 In-Reply-To: <1461251267-14897-1-git-send-email-lee.jones@linaro.org> References: <1461251267-14897-1-git-send-email-lee.jones@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2927 Lines: 105 Doing so saves quite a bit of code in the driver. For more information on the 'reserved-memory' bindings see: Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt Suggested-by: Suman Anna Signed-off-by: Lee Jones Signed-off-by: Maxime Coquelin --- arch/arm/boot/dts/stih407-family.dtsi | 47 +++++++++++++++++++++++++++++------ 1 file changed, 39 insertions(+), 8 deletions(-) diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi index 7cd358b..33de7361 100644 --- a/arch/arm/boot/dts/stih407-family.dtsi +++ b/arch/arm/boot/dts/stih407-family.dtsi @@ -15,6 +15,36 @@ #address-cells = <1>; #size-cells = <1>; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + gp0_reserved: rproc@40000000 { + compatible = "shared-dma-pool"; + reg = <0x40000000 0x01000000>; + no-map; + }; + + gp1_reserved: rproc@41000000 { + compatible = "shared-dma-pool"; + reg = <0x41000000 0x01000000>; + no-map; + }; + + audio_reserved: rproc@42000000 { + compatible = "shared-dma-pool"; + reg = <0x42000000 0x01000000>; + no-map; + }; + + dmu_reserved: rproc@43000000 { + compatible = "shared-dma-pool"; + reg = <0x43000000 0x01000000>; + no-map; + }; + }; + cpus { #address-cells = <1>; #size-cells = <0>; @@ -748,9 +778,9 @@ status = "okay"; }; - st231_gp0: remote-processor@40000000 { + st231_gp0: remote-processor { compatible = "st,st231-rproc"; - reg = <0x40000000 0x01000000>; + memory-region = <&gp0_reserved>; resets = <&softreset STIH407_ST231_GP0_SOFTRESET>; reset-names = "sw_reset"; clocks = <&clk_s_c0_flexgen CLK_ST231_GP_0>; @@ -758,9 +788,10 @@ st,syscfg = <&syscfg_core 0x22c>; }; - st231_gp1: remote-processor@41000000 { + + st231_gp1: remote-processor { compatible = "st,st231-rproc"; - reg = <0x41000000 0x01000000>; + memory-region = <&gp1_reserved>; resets = <&softreset STIH407_ST231_GP1_SOFTRESET>; reset-names = "sw_reset"; clocks = <&clk_s_c0_flexgen CLK_ST231_GP_1>; @@ -768,9 +799,9 @@ st,syscfg = <&syscfg_core 0x220>; }; - st231_audio: remote-processor@42000000 { + st231_audio: remote-processor { compatible = "st,st231-rproc"; - reg = <0x42000000 0x01000000>; + memory-region = <&audio_reserved>; resets = <&softreset STIH407_ST231_AUD_SOFTRESET>; reset-names = "sw_reset"; clocks = <&clk_s_c0_flexgen CLK_ST231_AUD_0>; @@ -778,9 +809,9 @@ st,syscfg = <&syscfg_core 0x228>; }; - st231_dmu: remote-processor@43000000 { + st231_dmu: remote-processor { compatible = "st,st231-rproc"; - reg = <0x43000000 0x01000000>; + memory-region = <&dmu_reserved>; resets = <&softreset STIH407_ST231_DMU_SOFTRESET>; reset-names = "sw_reset"; clocks = <&clk_s_c0_flexgen CLK_ST231_DMU>; -- 2.8.0