From patchwork Mon Dec 28 20:44:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexandre Belloni X-Patchwork-Id: 11991657 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 89EB7C433E0 for ; Mon, 28 Dec 2020 20:45:57 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3B7F0222B3 for ; Mon, 28 Dec 2020 20:45:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3B7F0222B3 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bootlin.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=7eQuDxXZLobjMhMdY0xt5xunaaXeoCBV1WZ1wAVqbqg=; b=JOoUG8irIzJ2pvaRcmqVIUDH5Y 4JWePYjrJa3AheKLFQ1slvKmEgI5SAw+QZlUBgdOxXBpMW0H1ltqWG8mq/aqQenYIrrz6CX7stSwo QjjLXOMQf5n40uUxCXI8e9ljzFIdAzPfmvvWgKKfOjPEynDd25H8lQkqgDiFgLNTGVYNUOvNZPQDP iy2h9RDhmnsr0CPUDglLUAsIIfcf5nECXHQ016bErXOz/YmauJpumEQ8OEvELxtBr3++ImuTRqb4t 7Le/4Ezy+g31Ku1cOoRRHCIWtZdzrcf4zRJzXn0QvQjCzyJtMjaAj6oeWN4spCmTVEEs+GgIuM2Lx XikIYtAg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ktzNN-0001P9-N5; Mon, 28 Dec 2020 20:44:21 +0000 Received: from relay5-d.mail.gandi.net ([217.70.183.197]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ktzNK-0001OZ-Gx for linux-arm-kernel@lists.infradead.org; Mon, 28 Dec 2020 20:44:19 +0000 X-Originating-IP: 86.202.109.140 Received: from localhost (lfbn-lyo-1-13-140.w86-202.abo.wanadoo.fr [86.202.109.140]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id A50D21C0002; Mon, 28 Dec 2020 20:44:15 +0000 (UTC) From: Alexandre Belloni To: Arnd Bergmann , Greg Kroah-Hartman , Nicolas Ferre , Ludovic Desroches Subject: [PATCH] misc: remove atmel_tclib Date: Mon, 28 Dec 2020 21:44:13 +0100 Message-Id: <20201228204413.2677762-1-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201228_154418_774099_4009433B X-CRM114-Status: GOOD ( 22.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alexandre Belloni , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org There is no driver depending on atmel_tclib anymore. Remove this driver. Signed-off-by: Alexandre Belloni --- drivers/misc/Kconfig | 8 -- drivers/misc/Makefile | 1 - drivers/misc/atmel_tclib.c | 200 ------------------------------------- 3 files changed, 209 deletions(-) delete mode 100644 drivers/misc/atmel_tclib.c diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index fafa8b0d8099..e90c2524e46c 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -50,14 +50,6 @@ config AD525X_DPOT_SPI To compile this driver as a module, choose M here: the module will be called ad525x_dpot-spi. -config ATMEL_TCLIB - bool "Atmel AT32/AT91 Timer/Counter Library" - depends on ARCH_AT91 - help - Select this if you want a library to allocate the Timer/Counter - blocks found on many Atmel processors. This facilitates using - these blocks by different drivers despite processor differences. - config DUMMY_IRQ tristate "Dummy IRQ handler" help diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index d23231e73330..f65e8b18ecd8 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -10,7 +10,6 @@ obj-$(CONFIG_AD525X_DPOT_I2C) += ad525x_dpot-i2c.o obj-$(CONFIG_AD525X_DPOT_SPI) += ad525x_dpot-spi.o obj-$(CONFIG_INTEL_MID_PTI) += pti.o obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o -obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o obj-$(CONFIG_DUMMY_IRQ) += dummy-irq.o obj-$(CONFIG_ICS932S401) += ics932s401.o obj-$(CONFIG_LKDTM) += lkdtm/ diff --git a/drivers/misc/atmel_tclib.c b/drivers/misc/atmel_tclib.c deleted file mode 100644 index 7de7840f613c..000000000000 --- a/drivers/misc/atmel_tclib.c +++ /dev/null @@ -1,200 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* - * This is a thin library to solve the problem of how to portably allocate - * one of the TC blocks. For simplicity, it doesn't currently expect to - * share individual timers between different drivers. - */ - -#if defined(CONFIG_AVR32) -/* AVR32 has these divide PBB */ -const u8 atmel_tc_divisors[5] = { 0, 4, 8, 16, 32, }; -EXPORT_SYMBOL(atmel_tc_divisors); - -#elif defined(CONFIG_ARCH_AT91) -/* AT91 has these divide MCK */ -const u8 atmel_tc_divisors[5] = { 2, 8, 32, 128, 0, }; -EXPORT_SYMBOL(atmel_tc_divisors); - -#endif - -static DEFINE_SPINLOCK(tc_list_lock); -static LIST_HEAD(tc_list); - -/** - * atmel_tc_alloc - allocate a specified TC block - * @block: which block to allocate - * - * Caller allocates a block. If it is available, a pointer to a - * pre-initialized struct atmel_tc is returned. The caller can access - * the registers directly through the "regs" field. - */ -struct atmel_tc *atmel_tc_alloc(unsigned block) -{ - struct atmel_tc *tc; - struct platform_device *pdev = NULL; - - spin_lock(&tc_list_lock); - list_for_each_entry(tc, &tc_list, node) { - if (tc->allocated) - continue; - - if ((tc->pdev->dev.of_node && tc->id == block) || - (tc->pdev->id == block)) { - pdev = tc->pdev; - tc->allocated = true; - break; - } - } - spin_unlock(&tc_list_lock); - - return pdev ? tc : NULL; -} -EXPORT_SYMBOL_GPL(atmel_tc_alloc); - -/** - * atmel_tc_free - release a specified TC block - * @tc: Timer/counter block that was returned by atmel_tc_alloc() - * - * This reverses the effect of atmel_tc_alloc(), invalidating the resource - * returned by that routine and making the TC available to other drivers. - */ -void atmel_tc_free(struct atmel_tc *tc) -{ - spin_lock(&tc_list_lock); - if (tc->allocated) - tc->allocated = false; - spin_unlock(&tc_list_lock); -} -EXPORT_SYMBOL_GPL(atmel_tc_free); - -#if defined(CONFIG_OF) -static struct atmel_tcb_config tcb_rm9200_config = { - .counter_width = 16, -}; - -static struct atmel_tcb_config tcb_sam9x5_config = { - .counter_width = 32, -}; - -static const struct of_device_id atmel_tcb_dt_ids[] = { - { - .compatible = "atmel,at91rm9200-tcb", - .data = &tcb_rm9200_config, - }, { - .compatible = "atmel,at91sam9x5-tcb", - .data = &tcb_sam9x5_config, - }, { - /* sentinel */ - } -}; - -MODULE_DEVICE_TABLE(of, atmel_tcb_dt_ids); -#endif - -static int __init tc_probe(struct platform_device *pdev) -{ - struct atmel_tc *tc; - struct clk *clk; - int irq; - unsigned int i; - - if (of_get_child_count(pdev->dev.of_node)) - return -EBUSY; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return -EINVAL; - - tc = devm_kzalloc(&pdev->dev, sizeof(struct atmel_tc), GFP_KERNEL); - if (!tc) - return -ENOMEM; - - tc->pdev = pdev; - - clk = devm_clk_get(&pdev->dev, "t0_clk"); - if (IS_ERR(clk)) - return PTR_ERR(clk); - - tc->slow_clk = devm_clk_get(&pdev->dev, "slow_clk"); - if (IS_ERR(tc->slow_clk)) - return PTR_ERR(tc->slow_clk); - - tc->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(tc->regs)) - return PTR_ERR(tc->regs); - - /* Now take SoC information if available */ - if (pdev->dev.of_node) { - const struct of_device_id *match; - match = of_match_node(atmel_tcb_dt_ids, pdev->dev.of_node); - if (match) - tc->tcb_config = match->data; - - tc->id = of_alias_get_id(tc->pdev->dev.of_node, "tcb"); - } else { - tc->id = pdev->id; - } - - tc->clk[0] = clk; - tc->clk[1] = devm_clk_get(&pdev->dev, "t1_clk"); - if (IS_ERR(tc->clk[1])) - tc->clk[1] = clk; - tc->clk[2] = devm_clk_get(&pdev->dev, "t2_clk"); - if (IS_ERR(tc->clk[2])) - tc->clk[2] = clk; - - tc->irq[0] = irq; - tc->irq[1] = platform_get_irq(pdev, 1); - if (tc->irq[1] < 0) - tc->irq[1] = irq; - tc->irq[2] = platform_get_irq(pdev, 2); - if (tc->irq[2] < 0) - tc->irq[2] = irq; - - for (i = 0; i < 3; i++) - writel(ATMEL_TC_ALL_IRQ, tc->regs + ATMEL_TC_REG(i, IDR)); - - spin_lock(&tc_list_lock); - list_add_tail(&tc->node, &tc_list); - spin_unlock(&tc_list_lock); - - platform_set_drvdata(pdev, tc); - - return 0; -} - -static void tc_shutdown(struct platform_device *pdev) -{ - int i; - struct atmel_tc *tc = platform_get_drvdata(pdev); - - for (i = 0; i < 3; i++) - writel(ATMEL_TC_ALL_IRQ, tc->regs + ATMEL_TC_REG(i, IDR)); -} - -static struct platform_driver tc_driver = { - .driver = { - .name = "atmel_tcb", - .of_match_table = of_match_ptr(atmel_tcb_dt_ids), - }, - .shutdown = tc_shutdown, -}; - -static int __init tc_init(void) -{ - return platform_driver_probe(&tc_driver, tc_probe); -} -arch_initcall(tc_init);