From patchwork Mon Sep 19 19:12:13 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Jarzmik X-Patchwork-Id: 9340375 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C2C0A6022E for ; Mon, 19 Sep 2016 19:42:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AD3A7297D8 for ; Mon, 19 Sep 2016 19:42:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A02142984D; Mon, 19 Sep 2016 19:42:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,FREEMAIL_FROM, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4D97B297D8 for ; Mon, 19 Sep 2016 19:42:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751817AbcISTme (ORCPT ); Mon, 19 Sep 2016 15:42:34 -0400 Received: from smtp12.smtpout.orange.fr ([80.12.242.134]:28151 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751229AbcISTme (ORCPT ); Mon, 19 Sep 2016 15:42:34 -0400 Received: from belgarion.home ([109.220.51.14]) by mwinf5d23 with ME id lXCP1t00T0JP8pp03XCU9q; Mon, 19 Sep 2016 21:12:29 +0200 X-ME-Helo: belgarion.home X-ME-Date: Mon, 19 Sep 2016 21:12:29 +0200 X-ME-IP: 109.220.51.14 From: Robert Jarzmik To: Daniel Mack , Haojian Zhuang , Robert Jarzmik , Russell King , Michael Turquette , Stephen Boyd , Daniel Lezcano , Thomas Gleixner , Wim Van Sebroeck Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [PATCH 2/4] ARM: sa11x0/pxa: acquire timer rate from the clock rate Date: Mon, 19 Sep 2016 21:12:13 +0200 Message-Id: <1474312335-20997-3-git-send-email-robert.jarzmik@free.fr> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1474312335-20997-1-git-send-email-robert.jarzmik@free.fr> References: <1474312335-20997-1-git-send-email-robert.jarzmik@free.fr> Sender: linux-clk-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP As both pxa and sa1100 provide a clock to the timer, the rate can be inferred from the clock rather than hard encoded in a functional call. This patch changes the pxa timer to have a mandatory clock which is used as the timer rate. Signed-off-by: Robert Jarzmik Acked-by: Daniel Lezcano Acked-by: Russell King --- arch/arm/mach-pxa/generic.c | 3 +-- arch/arm/mach-sa1100/generic.c | 2 +- drivers/clocksource/pxa_timer.c | 11 +++++------ include/clocksource/pxa.h | 3 +-- 4 files changed, 8 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c index ec510ecf8370..2a9297991d74 100644 --- a/arch/arm/mach-pxa/generic.c +++ b/arch/arm/mach-pxa/generic.c @@ -69,8 +69,7 @@ void __init pxa_timer_init(void) pxa27x_clocks_init(); if (cpu_is_pxa3xx()) pxa3xx_clocks_init(); - pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000), - get_clock_tick_rate()); + pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x40a00000)); } /* diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index 3e09beddb6e8..2eb00691b07d 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -378,7 +378,7 @@ void __init sa1100_map_io(void) void __init sa1100_timer_init(void) { - pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x90000000), 3686400); + pxa_timer_nodt_init(IRQ_OST0, io_p2v(0x90000000)); } static struct resource irq_resource = diff --git a/drivers/clocksource/pxa_timer.c b/drivers/clocksource/pxa_timer.c index 3e1cb512f3ce..9cae38eebec2 100644 --- a/drivers/clocksource/pxa_timer.c +++ b/drivers/clocksource/pxa_timer.c @@ -220,17 +220,16 @@ CLOCKSOURCE_OF_DECLARE(pxa_timer, "marvell,pxa-timer", pxa_timer_dt_init); /* * Legacy timer init for non device-tree boards. */ -void __init pxa_timer_nodt_init(int irq, void __iomem *base, - unsigned long clock_tick_rate) +void __init pxa_timer_nodt_init(int irq, void __iomem *base) { struct clk *clk; timer_base = base; clk = clk_get(NULL, "OSTIMER0"); - if (clk && !IS_ERR(clk)) + if (clk && !IS_ERR(clk)) { clk_prepare_enable(clk); - else + pxa_timer_common_init(irq, clk_get_rate(clk)); + } else { pr_crit("%s: unable to get clk\n", __func__); - - pxa_timer_common_init(irq, clock_tick_rate); + } } diff --git a/include/clocksource/pxa.h b/include/clocksource/pxa.h index 1efbe5a66958..a9a0f03024a4 100644 --- a/include/clocksource/pxa.h +++ b/include/clocksource/pxa.h @@ -12,7 +12,6 @@ #ifndef _CLOCKSOURCE_PXA_H #define _CLOCKSOURCE_PXA_H -extern void pxa_timer_nodt_init(int irq, void __iomem *base, - unsigned long clock_tick_rate); +extern void pxa_timer_nodt_init(int irq, void __iomem *base); #endif