From patchwork Tue Dec 19 22:03:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Ravnborg via B4 Relay X-Patchwork-Id: 13499216 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 498B93D0D8; Tue, 19 Dec 2023 22:03:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="UUvylM7r" Received: by smtp.kernel.org (Postfix) with ESMTPS id AF230C43391; Tue, 19 Dec 2023 22:03:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1703023395; bh=i8P0wIY8MHNR0IMtWcJ3lmr2A2+O0+vGlp41TmDW9Ws=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=UUvylM7rIglGvj739qnp45YIczwIDgMAS6sj4ktXX+qZAcpZL9Jp1WoQr6g87GoMT pLUhCNvqCas0JWFfGHFTPAygsN3pkDyof2ZD0Ie1cnVS7fE4uG5xZWfbpciFCCK0r0 X/+AcDWmp8fqzdAGPwGGogrZ/Yh62oz0c7A+S0BAUOJYmpfoytBo1c3tRFK1GCGhXK 2oyRge7VChXNjdfCAYqNHhk+0E250TKp/K5PHy+efwk3TGep784q+1SrFcVi/YD1pG 1F4waGytTQygWFsvPn1iiw2nuN703RGjG5ylwG1Bwj8/qSHLSms/M7YFWmzgFJONgq aeiEdjRwgQh9A== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 98D24C46CCD; Tue, 19 Dec 2023 22:03:15 +0000 (UTC) From: Sam Ravnborg via B4 Relay Date: Tue, 19 Dec 2023 23:03:10 +0100 Subject: [PATCH 05/27] sparc32: Drop sun specific power management drivers Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231219-sam-sparc32-sunset-v3-v1-5-64bb44b598c5@ravnborg.org> References: <20231219-sam-sparc32-sunset-v3-v1-0-64bb44b598c5@ravnborg.org> In-Reply-To: <20231219-sam-sparc32-sunset-v3-v1-0-64bb44b598c5@ravnborg.org> To: "David S. Miller" , Arnd Bergmann , Andreas Larsson Cc: Helge Deller , Alexander Viro , Greg Kroah-Hartman , Alan Stern , Jaroslav Kysela , Takashi Iwai , sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-sound@vger.kernel.org, Sam Ravnborg X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=ed25519-sha256; t=1703023392; l=8689; i=sam@ravnborg.org; s=20230107; h=from:subject:message-id; bh=fThpDz4+PMLtttr9htY2gCawX85PeqZND9L6UPVn/AU=; =?utf-8?q?b=3DOtsYhDQL2gfc?= =?utf-8?q?36sjUQEkqHM5Gpi2qOmZo9mUeeInVwO/EiodJOjzL2CLQ6HIKMCVVNmZbBU88Oyw?= 1xqlbiSlCV4/vr/mH/KffmBQTiaOxktZzxxr8w0r28UXQfg8ZBhV X-Developer-Key: i=sam@ravnborg.org; a=ed25519; pk=R0+pqV7BRYOAeOIGkyOrSNke7arx5y3LkEuNi37YEyU= X-Endpoint-Received: by B4 Relay for sam@ravnborg.org/20230107 with auth_id=22 X-Original-From: Sam Ravnborg Reply-To: From: Sam Ravnborg Drop the two sun specific apc and pmc drivers. Signed-off-by: Sam Ravnborg Cc: "David S. Miller" Cc: Arnd Bergmann Cc: Andreas Larsson --- arch/sparc/Kconfig | 7 -- arch/sparc/kernel/Makefile | 1 - arch/sparc/kernel/apc.c | 196 --------------------------------------------- arch/sparc/kernel/pmc.c | 100 ----------------------- 4 files changed, 304 deletions(-) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 1520f68e944a..55a9e67c482e 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -324,13 +324,6 @@ config CMDLINE NOTE: This option WILL override the PROM bootargs setting! -config SUN_PM - bool - default y if SPARC32 - help - Enable power management and CPU standby features on supported - SPARC platforms. - config SERIAL_CONSOLE bool depends on SPARC32 diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 95687af45d20..ab47823f8b4e 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -84,7 +84,6 @@ obj-$(CONFIG_SPARC32_SMP) += sun4m_smp.o sun4d_smp.o leon_smp.o obj-$(CONFIG_SPARC64_SMP) += hvtramp.o obj-y += auxio_$(BITS).o -obj-$(CONFIG_SUN_PM) += apc.o pmc.o obj-y += termios.o diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c deleted file mode 100644 index d44725d37e30..000000000000 --- a/arch/sparc/kernel/apc.c +++ /dev/null @@ -1,196 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* apc - Driver implementation for power management functions - * of Aurora Personality Chip (APC) on SPARCstation-4/5 and - * derivatives. - * - * Copyright (c) 2002 Eric Brower (ebrower@usa.net) - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include - -/* Debugging - * - * #define APC_DEBUG_LED - */ - -#define APC_MINOR MISC_DYNAMIC_MINOR -#define APC_OBPNAME "power-management" -#define APC_DEVNAME "apc" - -static u8 __iomem *regs; -static int apc_no_idle = 0; - -#define apc_readb(offs) (sbus_readb(regs+offs)) -#define apc_writeb(val, offs) (sbus_writeb(val, regs+offs)) - -/* Specify "apc=noidle" on the kernel command line to - * disable APC CPU standby support. Certain prototype - * systems (SPARCstation-Fox) do not play well with APC - * CPU idle, so disable this if your system has APC and - * crashes randomly. - */ -static int __init apc_setup(char *str) -{ - if(!strncmp(str, "noidle", strlen("noidle"))) { - apc_no_idle = 1; - return 1; - } - return 0; -} -__setup("apc=", apc_setup); - -/* - * CPU idle callback function - * See .../arch/sparc/kernel/process.c - */ -static void apc_swift_idle(void) -{ -#ifdef APC_DEBUG_LED - set_auxio(0x00, AUXIO_LED); -#endif - - apc_writeb(apc_readb(APC_IDLE_REG) | APC_IDLE_ON, APC_IDLE_REG); - -#ifdef APC_DEBUG_LED - set_auxio(AUXIO_LED, 0x00); -#endif -} - -static inline void apc_free(struct platform_device *op) -{ - of_iounmap(&op->resource[0], regs, resource_size(&op->resource[0])); -} - -static int apc_open(struct inode *inode, struct file *f) -{ - return 0; -} - -static int apc_release(struct inode *inode, struct file *f) -{ - return 0; -} - -static long apc_ioctl(struct file *f, unsigned int cmd, unsigned long __arg) -{ - __u8 inarg, __user *arg = (__u8 __user *) __arg; - - switch (cmd) { - case APCIOCGFANCTL: - if (put_user(apc_readb(APC_FANCTL_REG) & APC_REGMASK, arg)) - return -EFAULT; - break; - - case APCIOCGCPWR: - if (put_user(apc_readb(APC_CPOWER_REG) & APC_REGMASK, arg)) - return -EFAULT; - break; - - case APCIOCGBPORT: - if (put_user(apc_readb(APC_BPORT_REG) & APC_BPMASK, arg)) - return -EFAULT; - break; - - case APCIOCSFANCTL: - if (get_user(inarg, arg)) - return -EFAULT; - apc_writeb(inarg & APC_REGMASK, APC_FANCTL_REG); - break; - - case APCIOCSCPWR: - if (get_user(inarg, arg)) - return -EFAULT; - apc_writeb(inarg & APC_REGMASK, APC_CPOWER_REG); - break; - - case APCIOCSBPORT: - if (get_user(inarg, arg)) - return -EFAULT; - apc_writeb(inarg & APC_BPMASK, APC_BPORT_REG); - break; - - default: - return -EINVAL; - } - - return 0; -} - -static const struct file_operations apc_fops = { - .unlocked_ioctl = apc_ioctl, - .open = apc_open, - .release = apc_release, - .llseek = noop_llseek, -}; - -static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops }; - -static int apc_probe(struct platform_device *op) -{ - int err; - - regs = of_ioremap(&op->resource[0], 0, - resource_size(&op->resource[0]), APC_OBPNAME); - if (!regs) { - printk(KERN_ERR "%s: unable to map registers\n", APC_DEVNAME); - return -ENODEV; - } - - err = misc_register(&apc_miscdev); - if (err) { - printk(KERN_ERR "%s: unable to register device\n", APC_DEVNAME); - apc_free(op); - return -ENODEV; - } - - /* Assign power management IDLE handler */ - if (!apc_no_idle) - sparc_idle = apc_swift_idle; - - printk(KERN_INFO "%s: power management initialized%s\n", - APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : ""); - - return 0; -} - -static const struct of_device_id apc_match[] = { - { - .name = APC_OBPNAME, - }, - {}, -}; -MODULE_DEVICE_TABLE(of, apc_match); - -static struct platform_driver apc_driver = { - .driver = { - .name = "apc", - .of_match_table = apc_match, - }, - .probe = apc_probe, -}; - -static int __init apc_init(void) -{ - return platform_driver_register(&apc_driver); -} - -/* This driver is not critical to the boot process - * and is easiest to ioremap when SBus is already - * initialized, so we install ourselves thusly: - */ -__initcall(apc_init); diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c deleted file mode 100644 index 69a0206e56f0..000000000000 --- a/arch/sparc/kernel/pmc.c +++ /dev/null @@ -1,100 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* pmc - Driver implementation for power management functions - * of Power Management Controller (PMC) on SPARCstation-Voyager. - * - * Copyright (c) 2002 Eric Brower (ebrower@usa.net) - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include - -/* Debug - * - * #define PMC_DEBUG_LED - * #define PMC_NO_IDLE - */ - -#define PMC_OBPNAME "SUNW,pmc" -#define PMC_DEVNAME "pmc" - -#define PMC_IDLE_REG 0x00 -#define PMC_IDLE_ON 0x01 - -static u8 __iomem *regs; - -#define pmc_readb(offs) (sbus_readb(regs+offs)) -#define pmc_writeb(val, offs) (sbus_writeb(val, regs+offs)) - -/* - * CPU idle callback function - * See .../arch/sparc/kernel/process.c - */ -static void pmc_swift_idle(void) -{ -#ifdef PMC_DEBUG_LED - set_auxio(0x00, AUXIO_LED); -#endif - - pmc_writeb(pmc_readb(PMC_IDLE_REG) | PMC_IDLE_ON, PMC_IDLE_REG); - -#ifdef PMC_DEBUG_LED - set_auxio(AUXIO_LED, 0x00); -#endif -} - -static int pmc_probe(struct platform_device *op) -{ - regs = of_ioremap(&op->resource[0], 0, - resource_size(&op->resource[0]), PMC_OBPNAME); - if (!regs) { - printk(KERN_ERR "%s: unable to map registers\n", PMC_DEVNAME); - return -ENODEV; - } - -#ifndef PMC_NO_IDLE - /* Assign power management IDLE handler */ - sparc_idle = pmc_swift_idle; -#endif - - printk(KERN_INFO "%s: power management initialized\n", PMC_DEVNAME); - return 0; -} - -static const struct of_device_id pmc_match[] = { - { - .name = PMC_OBPNAME, - }, - {}, -}; -MODULE_DEVICE_TABLE(of, pmc_match); - -static struct platform_driver pmc_driver = { - .driver = { - .name = "pmc", - .of_match_table = pmc_match, - }, - .probe = pmc_probe, -}; - -static int __init pmc_init(void) -{ - return platform_driver_register(&pmc_driver); -} - -/* This driver is not critical to the boot process - * and is easiest to ioremap when SBus is already - * initialized, so we install ourselves thusly: - */ -__initcall(pmc_init);