From mboxrd@z Thu Jan 1 00:00:00 1970 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 1EC7EC433EF for ; Fri, 4 Mar 2022 13:35:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238939AbiCDNf5 (ORCPT ); Fri, 4 Mar 2022 08:35:57 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55572 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237222AbiCDNfr (ORCPT ); Fri, 4 Mar 2022 08:35:47 -0500 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E462D1B763C for ; Fri, 4 Mar 2022 05:34:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1646400898; x=1677936898; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Jti6Lf93/pkshsUoxGsmUk/NZEDKA40Cet1PtYYdvz4=; b=Uun02UYxsVxYivYMKpb82g6zKJoc3so64pkIYV5EkCEJj5PsyfpO4yNN Zbf2HTcXDQVwC/5fe9RwXaMzvjhOJMvYJVB+QybpXeJedRvACev1a6+kT 2kOoHYImoormtFc4Supzn1K7BkUxnrzfD3fX+po1EnwfxhwCGFySE7BQl Tuyc6+nTp/O+Ghy+6mX4gY/OjFO76FYBk9Y95PIxey79cY01aZG+uHnzh LAQYdM1iclgnxAP4TDv4ps5O+9qnNuGnNHnBFWj71gqWjlB9XQSn6Ef4G KcgnAQlkNQbefpvNwfttMaNxvxXPdbBeqVlEz6CoCmpHh296gbKWxugCD A==; X-IronPort-AV: E=Sophos;i="5.90,155,1643698800"; d="scan'208";a="148098685" Received: from smtpout.microchip.com (HELO email.microchip.com) ([198.175.253.82]) by esa4.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 04 Mar 2022 06:34:58 -0700 Received: from chn-vm-ex04.mchp-main.com (10.10.85.152) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Fri, 4 Mar 2022 06:34:58 -0700 Received: from localhost.localdomain (10.10.115.15) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Fri, 4 Mar 2022 06:34:56 -0700 From: Claudiu Beznea To: , CC: , , Claudiu Beznea Subject: [PATCH v3 3/6] clocksource/drivers/timer-microchip-pit64b: use 5MHz for clockevent Date: Fri, 4 Mar 2022 15:35:58 +0200 Message-ID: <20220304133601.2404086-4-claudiu.beznea@microchip.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20220304133601.2404086-1-claudiu.beznea@microchip.com> References: <20220304133601.2404086-1-claudiu.beznea@microchip.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Use 5MHz clock for clockevent timers. This increases timer's resolution. Signed-off-by: Claudiu Beznea --- drivers/clocksource/timer-microchip-pit64b.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/clocksource/timer-microchip-pit64b.c b/drivers/clocksource/timer-microchip-pit64b.c index 790d2c9b42a7..abce83d2f00b 100644 --- a/drivers/clocksource/timer-microchip-pit64b.c +++ b/drivers/clocksource/timer-microchip-pit64b.c @@ -42,8 +42,7 @@ #define MCHP_PIT64B_LSBMASK GENMASK_ULL(31, 0) #define MCHP_PIT64B_PRES_TO_MODE(p) (MCHP_PIT64B_MR_PRES & ((p) << 8)) #define MCHP_PIT64B_MODE_TO_PRES(m) ((MCHP_PIT64B_MR_PRES & (m)) >> 8) -#define MCHP_PIT64B_DEF_CS_FREQ 5000000UL /* 5 MHz */ -#define MCHP_PIT64B_DEF_CE_FREQ 32768 /* 32 KHz */ +#define MCHP_PIT64B_DEF_FREQ 5000000UL /* 5 MHz */ #define MCHP_PIT64B_NAME "pit64b" @@ -418,7 +417,6 @@ static int __init mchp_pit64b_init_clkevt(struct mchp_pit64b_timer *timer, static int __init mchp_pit64b_dt_init_timer(struct device_node *node, bool clkevt) { - u32 freq = clkevt ? MCHP_PIT64B_DEF_CE_FREQ : MCHP_PIT64B_DEF_CS_FREQ; struct mchp_pit64b_timer timer; unsigned long clk_rate; u32 irq = 0; @@ -446,7 +444,7 @@ static int __init mchp_pit64b_dt_init_timer(struct device_node *node, } /* Initialize mode (prescaler + SGCK bit). To be used at runtime. */ - ret = mchp_pit64b_init_mode(&timer, freq); + ret = mchp_pit64b_init_mode(&timer, MCHP_PIT64B_DEF_FREQ); if (ret) goto irq_unmap; -- 2.32.0