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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 12DD3ECE58C for ; Wed, 9 Oct 2019 22:40:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EBE4B218AC for ; Wed, 9 Oct 2019 22:40:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732346AbfJIWkW (ORCPT ); Wed, 9 Oct 2019 18:40:22 -0400 Received: from relay7-d.mail.gandi.net ([217.70.183.200]:54289 "EHLO relay7-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732260AbfJIWkT (ORCPT ); Wed, 9 Oct 2019 18:40:19 -0400 X-Originating-IP: 86.202.229.42 Received: from localhost (lfbn-lyo-1-146-42.w86-202.abo.wanadoo.fr [86.202.229.42]) (Authenticated sender: alexandre.belloni@bootlin.com) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id EF3B920003; Wed, 9 Oct 2019 22:40:16 +0000 (UTC) From: Alexandre Belloni To: Daniel Lezcano Cc: Thomas Gleixner , Nicolas Ferre , Sebastian Andrzej Siewior , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Alexandre Belloni Subject: [PATCH 8/8] clocksource/drivers/timer-atmel-tcb: add sama5d2 support Date: Thu, 10 Oct 2019 00:40:06 +0200 Message-Id: <20191009224006.5021-9-alexandre.belloni@bootlin.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191009224006.5021-1-alexandre.belloni@bootlin.com> References: <20191009224006.5021-1-alexandre.belloni@bootlin.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The first divisor for the sama5d2 is actually the gclk selector. Because the currently remaining divisors are fitting the use case, currently ensure it is skipped. Signed-off-by: Alexandre Belloni --- drivers/clocksource/timer-atmel-tcb.c | 11 ++++++++++- include/soc/at91/atmel_tcb.h | 1 + 2 files changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/clocksource/timer-atmel-tcb.c b/drivers/clocksource/timer-atmel-tcb.c index ccb77b9cb489..e373b02d509a 100644 --- a/drivers/clocksource/timer-atmel-tcb.c +++ b/drivers/clocksource/timer-atmel-tcb.c @@ -359,9 +359,15 @@ static struct atmel_tcb_config tcb_sam9x5_config = { .counter_width = 32, }; +static struct atmel_tcb_config tcb_sama5d2_config = { + .counter_width = 32, + .has_gclk = 1, +}; + static const struct of_device_id atmel_tcb_of_match[] = { { .compatible = "atmel,at91rm9200-tcb", .data = &tcb_rm9200_config, }, { .compatible = "atmel,at91sam9x5-tcb", .data = &tcb_sam9x5_config, }, + { .compatible = "atmel,sama5d2-tcb", .data = &tcb_sama5d2_config, }, { /* sentinel */ } }; @@ -426,7 +432,10 @@ static int __init tcb_clksrc_init(struct device_node *node) /* How fast will we be counting? Pick something over 5 MHz. */ rate = (u32) clk_get_rate(t0_clk); - for (i = 0; i < ARRAY_SIZE(atmel_tcb_divisors); i++) { + i = 0; + if (tc.tcb_config->has_gclk) + i = 1; + for (; i < ARRAY_SIZE(atmel_tcb_divisors); i++) { unsigned divisor = atmel_tcb_divisors[i]; unsigned tmp; diff --git a/include/soc/at91/atmel_tcb.h b/include/soc/at91/atmel_tcb.h index c3c7200ce151..fbf5474f4484 100644 --- a/include/soc/at91/atmel_tcb.h +++ b/include/soc/at91/atmel_tcb.h @@ -39,6 +39,7 @@ struct clk; */ struct atmel_tcb_config { size_t counter_width; + unsigned int has_gclk:1; }; /** -- 2.21.0