From patchwork Sun Apr 19 17:07:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rob Herring X-Patchwork-Id: 11497613 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A62A66CA for ; Sun, 19 Apr 2020 17:08:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8E548221F4 for ; Sun, 19 Apr 2020 17:08:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587316095; bh=OFl0DgxoIf3Yo+GEOQZISzTrDAkAGWJkRNFX3IleGW0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=LGTXEvPTCT7FJ2zFlJ3yOPw2ZurTC37Uj4e1rrxLLsG64CWHEnx6+9yC09c4KxfdC BdKvds2NKS8T7BRgWtYugpi1AFmtkaCuO/O/grISpSsCRAwzd+7ImfKhaPYMtIQie/ O3AbDCrwNxqJ9U3L2WEvtiQ2XifT8LbJy+rApfX0= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726501AbgDSRIP (ORCPT ); Sun, 19 Apr 2020 13:08:15 -0400 Received: from mail-oi1-f195.google.com ([209.85.167.195]:36528 "EHLO mail-oi1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725932AbgDSRIO (ORCPT ); Sun, 19 Apr 2020 13:08:14 -0400 Received: by mail-oi1-f195.google.com with SMTP id s202so6772001oih.3; Sun, 19 Apr 2020 10:08:14 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=7u0a7x6gVwqXn6aqvyWZupXMzL8Fz9JGwbGpr6xl9qw=; b=eO0fliPgoog6YqL+nxl+R+wOQmXHdagxZmg9qeU8mBTaF8+58foeGa/JLdQ9ZW/UEE tmDSk89BQ/KNfum1fJRp9/cgbu73i8k/GnjakamE9JZKB7LkrCbZaU+fXBYbp40in3Qu OaXjl3A7+qSJQIImR1/HVtZSrw7iKNzouApLyg55BEYQjEOEyP++hs/1YS8mLhxqwhEX MyuQk6tkINEZmcCgKRiA6iR+gM6rgMy/Z8LdMF9l3cF1xxgaej4h3dApwG4wOMTWcQY6 P0r3rIMf/a3kLDe8xhwEGTKOeEHB9HhNNLiKVEiuerkeYtodksfu7kue2W8PHNUHUXY0 MasQ== X-Gm-Message-State: AGi0PuakPfKBFl9oUrMgDYfy5c4NenGSvnE0QvfX0HR/oTgegJFoTv02 bPjfXD5J3kV/IlsJqqH32A== X-Google-Smtp-Source: APiQypIylm12TEGbRXZrDBPw2xjm/2k4Np+huyFbHSGpX+YqkB9/f2+MfTS6wgL2Gcpce4PpGiVy8w== X-Received: by 2002:a05:6808:a91:: with SMTP id q17mr7982316oij.102.1587316093748; Sun, 19 Apr 2020 10:08:13 -0700 (PDT) Received: from xps15.herring.priv (24-155-109-49.dyn.grandenetworks.net. [24.155.109.49]) by smtp.googlemail.com with ESMTPSA id u205sm9661938oia.37.2020.04.19.10.08.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 19 Apr 2020 10:08:13 -0700 (PDT) From: Rob Herring To: Linus Walleij , Liviu Dudau , Lorenzo Pieralisi , Sudeep Holla Cc: Arnd Bergmann , Catalin Marinas , Greg Kroah-Hartman , Lee Jones , Sebastian Reichel , Stephen Boyd , Will Deacon , Kevin Brodsky , linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 01/17] ARM: vexpress: Move vexpress_flags_set() into arch code Date: Sun, 19 Apr 2020 12:07:54 -0500 Message-Id: <20200419170810.5738-2-robh@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200419170810.5738-1-robh@kernel.org> References: <20200419170810.5738-1-robh@kernel.org> MIME-Version: 1.0 Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org vexpress_flags_set() is only used by the platform SMP related code and has nothing to do with the vexpress-sysreg MFD driver other than both access the same h/w block. It's also only needed for 32-bit systems and must be built-in for them. Let's move vexpress_flags_set() closer to where it is being used. This will allow for vexpress-sysreg to be built as a module. Cc: Liviu Dudau Cc: Sudeep Holla Cc: Lorenzo Pieralisi Cc: Linus Walleij Cc: Lee Jones Signed-off-by: Rob Herring Acked-by: Arnd Bergmann Acked-by: Liviu Dudau Reviewed-by: Sudeep Holla --- arch/arm/mach-vexpress/Kconfig | 1 - arch/arm/mach-vexpress/core.h | 1 + arch/arm/mach-vexpress/dcscb.c | 1 + arch/arm/mach-vexpress/v2m.c | 23 +++++++++++++++++++++++ drivers/mfd/vexpress-sysreg.c | 19 ------------------- include/linux/vexpress.h | 4 ---- 6 files changed, 25 insertions(+), 24 deletions(-) diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index 726a68085c3b..18951cd20d9d 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -22,7 +22,6 @@ menuconfig ARCH_VEXPRESS select REGULATOR_FIXED_VOLTAGE if REGULATOR select VEXPRESS_CONFIG select VEXPRESS_SYSCFG - select MFD_VEXPRESS_SYSREG help This option enables support for systems using Cortex processor based ARM core and logic (FPGA) tiles on the Versatile Express motherboard, diff --git a/arch/arm/mach-vexpress/core.h b/arch/arm/mach-vexpress/core.h index f4a7519084f1..bda78675c55d 100644 --- a/arch/arm/mach-vexpress/core.h +++ b/arch/arm/mach-vexpress/core.h @@ -1,3 +1,4 @@ bool vexpress_smp_init_ops(void); +void vexpress_flags_set(u32 data); extern const struct smp_operations vexpress_smp_dt_ops; diff --git a/arch/arm/mach-vexpress/dcscb.c b/arch/arm/mach-vexpress/dcscb.c index 46a903c88c6a..a0554d7d04f7 100644 --- a/arch/arm/mach-vexpress/dcscb.c +++ b/arch/arm/mach-vexpress/dcscb.c @@ -20,6 +20,7 @@ #include #include +#include "core.h" #define RST_HOLD0 0x0 #define RST_HOLD1 0x4 diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 95886b3bb9dd..ffe7c7a85ae9 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -1,8 +1,31 @@ // SPDX-License-Identifier: GPL-2.0 +#include +#include #include #include "core.h" +#define SYS_FLAGSSET 0x030 +#define SYS_FLAGSCLR 0x034 + +void vexpress_flags_set(u32 data) +{ + static void __iomem *base; + + if (!base) { + struct device_node *node = of_find_compatible_node(NULL, NULL, + "arm,vexpress-sysreg"); + + base = of_iomap(node, 0); + } + + if (WARN_ON(!base)) + return; + + writel(~0, base + SYS_FLAGSCLR); + writel(data, base + SYS_FLAGSSET); +} + static const char * const v2m_dt_match[] __initconst = { "arm,vexpress", NULL, diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c index c68ff56dbdb1..0b9cc67706c7 100644 --- a/drivers/mfd/vexpress-sysreg.c +++ b/drivers/mfd/vexpress-sysreg.c @@ -8,7 +8,6 @@ #include #include #include -#include #include #include #include @@ -42,24 +41,6 @@ #define SYS_MISC_MASTERSITE (1 << 14) -void vexpress_flags_set(u32 data) -{ - static void __iomem *base; - - if (!base) { - struct device_node *node = of_find_compatible_node(NULL, NULL, - "arm,vexpress-sysreg"); - - base = of_iomap(node, 0); - } - - if (WARN_ON(!base)) - return; - - writel(~0, base + SYS_FLAGSCLR); - writel(data, base + SYS_FLAGSSET); -} - /* The sysreg block is just a random collection of various functions... */ static struct syscon_platform_data vexpress_sysreg_sys_id_pdata = { diff --git a/include/linux/vexpress.h b/include/linux/vexpress.h index 0e130b5077a5..2ec7992b054c 100644 --- a/include/linux/vexpress.h +++ b/include/linux/vexpress.h @@ -40,8 +40,4 @@ struct device *vexpress_config_bridge_register(struct device *parent, struct regmap *devm_regmap_init_vexpress_config(struct device *dev); -/* Platform control */ - -void vexpress_flags_set(u32 data); - #endif