From patchwork Tue Dec 19 22:03:09 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: 757671 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 030953D0A7; Tue, 19 Dec 2023 22:03:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tk3vhMhv" Received: by smtp.kernel.org (Postfix) with ESMTPS id A0E10C433CD; 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=PvOL9owNF2Ng6LxW7GH7pqhSC0pz/LAIOTcjgaK0OH4=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=tk3vhMhvqHmOnXWItGr8nAQvwmYbUhB3feES7BPxAn8Hcie4cRM1hYReHXfQjXaKT tEOhRGzwg8CS8+PTABIuRcFS1AxYb2J0YA0frp/bH1Fi7VK/LnTSX/VgDTErEkgy0h uIc8Usem7yKoHIMfSdZYIh4JdGhT06fj3wEpJffC2zPN/F5kAieNgB/qaYeJANEfwH JuV3tTk1XWyf1vlVbpqsPBrDsDWuNJMGpEB93ZxdgbrHgJLaVM56thLRNBFFHzTcZY 8dMzLa9dhpKpYgvqLNDmRUO0dajPof1OmPIUbKVRGM4Hr5lM+IoAZQ4g65ZaiUf45n tjeX79QI4MuoQ== 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 8A399C46CD7; Tue, 19 Dec 2023 22:03:15 +0000 (UTC) From: Sam Ravnborg via B4 Relay Date: Tue, 19 Dec 2023 23:03:09 +0100 Subject: [PATCH 04/27] sparc32: Drop sun4m specific led driver 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-v1-4-64bb44b598c5@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=5266; i=sam@ravnborg.org; s=20230107; h=from:subject:message-id; bh=w/RBrmmZ8Yg5ZhjQjAlbJAmo7mwa0rCWWJGIHV2crps=; =?utf-8?q?b=3DTeV6xXOFygK5?= =?utf-8?q?5e17IwhpcZDv8UodKRmHjUsOo5OdOB31c5kiG9eX2d59myzar3EODv/zPQnrG0Nr?= easM3BasDDyIMfs3BRDC5uRzyD9VOZoN+HRnA+lB7XfHNrrOW/MI 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 The led driver is only relevant for the sun4m machines. Signed-off-by: Sam Ravnborg Cc: "David S. Miller" Cc: Arnd Bergmann Cc: Andreas Larsson --- arch/sparc/Kconfig | 9 --- arch/sparc/kernel/Makefile | 1 - arch/sparc/kernel/led.c | 146 --------------------------------------------- 3 files changed, 156 deletions(-) diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 54c91431724b..1520f68e944a 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -331,15 +331,6 @@ config SUN_PM Enable power management and CPU standby features on supported SPARC platforms. -config SPARC_LED - tristate "Sun4m LED driver" - depends on SPARC32 - help - This driver toggles the front-panel LED on sun4m systems - in a user-specifiable manner. Its state can be probed - by reading /proc/led and its blinking mode can be changed - via writes to /proc/led - config SERIAL_CONSOLE bool depends on SPARC32 diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index 0984bb6f0f17..95687af45d20 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -90,7 +90,6 @@ obj-y += termios.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_MODULES) += sparc_ksyms.o -obj-$(CONFIG_SPARC_LED) += led.o obj-$(CONFIG_KGDB) += kgdb_$(BITS).o obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c deleted file mode 100644 index ab657b359789..000000000000 --- a/arch/sparc/kernel/led.c +++ /dev/null @@ -1,146 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#define LED_MAX_LENGTH 8 /* maximum chars written to proc file */ - -static inline void led_toggle(void) -{ - unsigned char val = get_auxio(); - unsigned char on, off; - - if (val & AUXIO_LED) { - on = 0; - off = AUXIO_LED; - } else { - on = AUXIO_LED; - off = 0; - } - - set_auxio(on, off); -} - -static struct timer_list led_blink_timer; -static unsigned long led_blink_timer_timeout; - -static void led_blink(struct timer_list *unused) -{ - unsigned long timeout = led_blink_timer_timeout; - - led_toggle(); - - /* reschedule */ - if (!timeout) { /* blink according to load */ - led_blink_timer.expires = jiffies + - ((1 + (avenrun[0] >> FSHIFT)) * HZ); - } else { /* blink at user specified interval */ - led_blink_timer.expires = jiffies + (timeout * HZ); - } - add_timer(&led_blink_timer); -} - -#ifdef CONFIG_PROC_FS -static int led_proc_show(struct seq_file *m, void *v) -{ - if (get_auxio() & AUXIO_LED) - seq_puts(m, "on\n"); - else - seq_puts(m, "off\n"); - return 0; -} - -static int led_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, led_proc_show, NULL); -} - -static ssize_t led_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *ppos) -{ - char *buf = NULL; - - if (count > LED_MAX_LENGTH) - count = LED_MAX_LENGTH; - - buf = memdup_user_nul(buffer, count); - if (IS_ERR(buf)) - return PTR_ERR(buf); - - /* work around \n when echo'ing into proc */ - if (buf[count - 1] == '\n') - buf[count - 1] = '\0'; - - /* before we change anything we want to stop any running timers, - * otherwise calls such as on will have no persistent effect - */ - del_timer_sync(&led_blink_timer); - - if (!strcmp(buf, "on")) { - auxio_set_led(AUXIO_LED_ON); - } else if (!strcmp(buf, "toggle")) { - led_toggle(); - } else if ((*buf > '0') && (*buf <= '9')) { - led_blink_timer_timeout = simple_strtoul(buf, NULL, 10); - led_blink(&led_blink_timer); - } else if (!strcmp(buf, "load")) { - led_blink_timer_timeout = 0; - led_blink(&led_blink_timer); - } else { - auxio_set_led(AUXIO_LED_OFF); - } - - kfree(buf); - - return count; -} - -static const struct proc_ops led_proc_ops = { - .proc_open = led_proc_open, - .proc_read = seq_read, - .proc_lseek = seq_lseek, - .proc_release = single_release, - .proc_write = led_proc_write, -}; -#endif - -#define LED_VERSION "0.1" - -static int __init led_init(void) -{ - timer_setup(&led_blink_timer, led_blink, 0); - -#ifdef CONFIG_PROC_FS - if (!proc_create("led", 0, NULL, &led_proc_ops)) - return -ENOMEM; -#endif - printk(KERN_INFO - "led: version %s, Lars Kotthoff \n", - LED_VERSION); - - return 0; -} - -static void __exit led_exit(void) -{ - remove_proc_entry("led", NULL); - del_timer_sync(&led_blink_timer); -} - -module_init(led_init); -module_exit(led_exit); - -MODULE_AUTHOR("Lars Kotthoff "); -MODULE_DESCRIPTION("Provides control of the front LED on SPARC systems."); -MODULE_LICENSE("GPL"); -MODULE_VERSION(LED_VERSION);