From patchwork Mon Oct 24 15:38:07 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13017859 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B7FEEFA3746 for ; Mon, 24 Oct 2022 17:05:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230102AbiJXRFb (ORCPT ); Mon, 24 Oct 2022 13:05:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235445AbiJXREg (ORCPT ); Mon, 24 Oct 2022 13:04:36 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8D86DD8EF5; Mon, 24 Oct 2022 08:40:38 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1748A6148E; Mon, 24 Oct 2022 15:38:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 49D89C433D7; Mon, 24 Oct 2022 15:38:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666625910; bh=KwMZrO00iVnxwnhEpYpfBtEpyDgfWlroRyU4bRtZWH4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YKpn0jSnwzMlsvSYThZiufeQx1e/whTC74gY5Nd2K8R6wv4gSGXrVakmoOyPx3tof yGWyVwmerRVWNSjLTxBM8InjUU/OGvY6xgwZY1IB8GVQStJThdgZ9iNn1jezWHDkMr bZkOzToUxKlo+qqR/iJeltBZ/FM4tLoSOqc8Asp0XDB80kTwbg2/OZrbkVYu7BvzJw LbX8jQhlNCkMssgMaIA+9gLYXcyS72WUE4RiI2GGWH1HzI2OcXyoj+pXc/4f5w8UdJ EvUuBmfLggxsqTev4mO1gMd47rn20mn8e940nbnIqjdhn2KUbtztNWGkXiHblmCFy6 Dxs2TDS5b5pkQ== From: Arnd Bergmann To: Tony Lindgren , linux-omap@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Arnd Bergmann Subject: [PATCH 03/10] ARM: omap2: remove unused omap_hwmod_reset.c Date: Mon, 24 Oct 2022 17:38:07 +0200 Message-Id: <20221024153814.254652-4-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20221024153814.254652-1-arnd@kernel.org> References: <20221024153814.254652-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org From: Arnd Bergmann Since commit 90aa4ed5a43f ("ARM: OMAP2+: Drop legacy platform data for dra7 rtcss"), this is not used any more and can be removed. Signed-off-by: Arnd Bergmann --- arch/arm/mach-omap2/Makefile | 2 +- arch/arm/mach-omap2/omap_hwmod.h | 7 -- arch/arm/mach-omap2/omap_hwmod_reset.c | 98 -------------------------- 3 files changed, 1 insertion(+), 106 deletions(-) delete mode 100644 arch/arm/mach-omap2/omap_hwmod_reset.c diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 2feb9f6630af..43b44e0858c1 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -7,7 +7,7 @@ obj-y := id.o io.o control.o devices.o fb.o pm.o \ common.o dma.o omap-headsmp.o sram.o -hwmod-common = omap_hwmod.o omap_hwmod_reset.o \ +hwmod-common = omap_hwmod.o \ omap_hwmod_common_data.o \ omap_hwmod_common_ipblock_data.o \ omap_device.o display.o hdq1w.o \ diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h index 6962a8d267e7..1bb42f3d2e83 100644 --- a/arch/arm/mach-omap2/omap_hwmod.h +++ b/arch/arm/mach-omap2/omap_hwmod.h @@ -669,13 +669,6 @@ omap_hwmod_for_each_by_class(const char *classname, } #endif /* CONFIG_OMAP_HWMOD */ -/* - * - */ - -void omap_hwmod_rtc_unlock(struct omap_hwmod *oh); -void omap_hwmod_rtc_lock(struct omap_hwmod *oh); - /* * Chip variant-specific hwmod init routines - XXX should be converted * to use initcalls once the initial boot ordering is straightened out diff --git a/arch/arm/mach-omap2/omap_hwmod_reset.c b/arch/arm/mach-omap2/omap_hwmod_reset.c deleted file mode 100644 index 143623bb056d..000000000000 --- a/arch/arm/mach-omap2/omap_hwmod_reset.c +++ /dev/null @@ -1,98 +0,0 @@ -/* - * OMAP IP block custom reset and preprogramming stubs - * - * Copyright (C) 2012 Texas Instruments, Inc. - * Paul Walmsley - * - * A small number of IP blocks need custom reset and preprogramming - * functions. The stubs in this file provide a standard way for the - * hwmod code to call these functions, which are to be located under - * drivers/. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation version 2. - * - * This program is distributed "as is" WITHOUT ANY WARRANTY of any - * kind, whether express or implied; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA - * 02110-1301 USA - */ -#include -#include - -#include "omap_hwmod.h" -#include "common.h" - -#define OMAP_RTC_STATUS_REG 0x44 -#define OMAP_RTC_KICK0_REG 0x6c -#define OMAP_RTC_KICK1_REG 0x70 - -#define OMAP_RTC_KICK0_VALUE 0x83E70B13 -#define OMAP_RTC_KICK1_VALUE 0x95A4F1E0 -#define OMAP_RTC_STATUS_BUSY BIT(0) -#define OMAP_RTC_MAX_READY_TIME 50 - -/** - * omap_rtc_wait_not_busy - Wait for the RTC BUSY flag - * @oh: struct omap_hwmod * - * - * For updating certain RTC registers, the MPU must wait - * for the BUSY status in OMAP_RTC_STATUS_REG to become zero. - * Once the BUSY status is zero, there is a 15 microseconds access - * period in which the MPU can program. - */ -static void omap_rtc_wait_not_busy(struct omap_hwmod *oh) -{ - int i; - - /* BUSY may stay active for 1/32768 second (~30 usec) */ - omap_test_timeout(omap_hwmod_read(oh, OMAP_RTC_STATUS_REG) - & OMAP_RTC_STATUS_BUSY, OMAP_RTC_MAX_READY_TIME, i); - /* now we have ~15 microseconds to read/write various registers */ -} - -/** - * omap_hwmod_rtc_unlock - Unlock the Kicker mechanism. - * @oh: struct omap_hwmod * - * - * RTC IP have kicker feature. This prevents spurious writes to its registers. - * In order to write into any of the RTC registers, KICK values has te be - * written in respective KICK registers. This is needed for hwmod to write into - * sysconfig register. - */ -void omap_hwmod_rtc_unlock(struct omap_hwmod *oh) -{ - unsigned long flags; - - local_irq_save(flags); - omap_rtc_wait_not_busy(oh); - omap_hwmod_write(OMAP_RTC_KICK0_VALUE, oh, OMAP_RTC_KICK0_REG); - omap_hwmod_write(OMAP_RTC_KICK1_VALUE, oh, OMAP_RTC_KICK1_REG); - local_irq_restore(flags); -} - -/** - * omap_hwmod_rtc_lock - Lock the Kicker mechanism. - * @oh: struct omap_hwmod * - * - * RTC IP have kicker feature. This prevents spurious writes to its registers. - * Once the RTC registers are written, KICK mechanism needs to be locked, - * in order to prevent any spurious writes. This function locks back the RTC - * registers once hwmod completes its write into sysconfig register. - */ -void omap_hwmod_rtc_lock(struct omap_hwmod *oh) -{ - unsigned long flags; - - local_irq_save(flags); - omap_rtc_wait_not_busy(oh); - omap_hwmod_write(0x0, oh, OMAP_RTC_KICK0_REG); - omap_hwmod_write(0x0, oh, OMAP_RTC_KICK1_REG); - local_irq_restore(flags); -}