From patchwork Fri Apr 14 18:40:06 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fu Wei Fu X-Patchwork-Id: 97442 Delivered-To: patch@linaro.org Received: by 10.140.109.52 with SMTP id k49csp404278qgf; Fri, 14 Apr 2017 11:41:36 -0700 (PDT) X-Received: by 10.84.193.129 with SMTP id f1mr10611315pld.97.1492195296254; Fri, 14 Apr 2017 11:41:36 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 59si3115513plp.203.2017.04.14.11.41.36; Fri, 14 Apr 2017 11:41:36 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-acpi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-acpi-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-acpi-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754664AbdDNSl3 (ORCPT + 8 others); Fri, 14 Apr 2017 14:41:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:43232 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752052AbdDNSl1 (ORCPT ); Fri, 14 Apr 2017 14:41:27 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 14EF685542; Fri, 14 Apr 2017 18:41:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 14EF685542 Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: ext-mx04.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=fu.wei@linaro.org DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 14EF685542 Received: from Rei-Ayanami.localdomain.com (ovpn-8-47.pek2.redhat.com [10.72.8.47]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0C3D562925; Fri, 14 Apr 2017 18:41:11 +0000 (UTC) From: fu.wei@linaro.org To: rjw@rjwysocki.net, lenb@kernel.org, daniel.lezcano@linaro.org, tglx@linutronix.de, marc.zyngier@arm.com, mark.rutland@arm.com, lorenzo.pieralisi@arm.com, sudeep.holla@arm.com, hanjun.guo@linaro.org Cc: linux-arm-kernel@lists.infradead.org, linaro-acpi@lists.linaro.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, rruigrok@codeaurora.org, harba@codeaurora.org, cov@codeaurora.org, timur@codeaurora.org, graeme.gregory@linaro.org, al.stone@linaro.org, jcm@redhat.com, wei@redhat.com, arnd@arndb.de, catalin.marinas@arm.com, will.deacon@arm.com, Suravee.Suthikulpanit@amd.com, leo.duran@amd.com, wim@iguana.be, linux@roeck-us.net, linux-watchdog@vger.kernel.org, tn@semihalf.com, christoffer.dall@linaro.org, julien.grall@arm.com, Fu Wei Subject: [PATCH v24 03/11] clocksource: arm_arch_timer: move arch_timer_needs_of_probing into DT init call Date: Sat, 15 Apr 2017 02:40:06 +0800 Message-Id: <20170414184014.8524-4-fu.wei@linaro.org> In-Reply-To: <20170414184014.8524-1-fu.wei@linaro.org> References: <20170414184014.8524-1-fu.wei@linaro.org> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Fri, 14 Apr 2017 18:41:26 +0000 (UTC) Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Fu Wei To cleanly split code paths specific to ACPI or DT at a higher level, this patch removes arch_timer_init(), folding the relevant parts of its logic into existing callers. This paths the way for further rework, and saves a few lines. Signed-off-by: Fu Wei Reviewed-by: Hanjun Guo [Mark: reword commit message] Signed-off-by: Mark Rutland --- drivers/clocksource/arm_arch_timer.c | 46 ++++++++++++++++-------------------- 1 file changed, 21 insertions(+), 25 deletions(-) -- 2.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index 03d71d6..e5e8708 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -1105,9 +1105,6 @@ static bool __init arch_timer_needs_of_probing(void) static int __init arch_timer_common_init(void) { - if (acpi_disabled && arch_timer_needs_of_probing()) - return 0; - arch_timer_banner(arch_timers_present); arch_counter_register(arch_timers_present); return arch_timer_arch_init(); @@ -1145,26 +1142,9 @@ static enum arch_timer_ppi_nr __init arch_timer_select_ppi(void) return ARCH_TIMER_PHYS_SECURE_PPI; } -static int __init arch_timer_init(void) -{ - int ret; - - ret = arch_timer_register(); - if (ret) - return ret; - - ret = arch_timer_common_init(); - if (ret) - return ret; - - arch_timer_kvm_info.virtual_irq = arch_timer_ppi[ARCH_TIMER_VIRT_PPI]; - - return 0; -} - static int __init arch_timer_of_init(struct device_node *np) { - int i; + int i, ret; u32 rate; if (arch_timers_present & ARCH_TIMER_TYPE_CP15) { @@ -1176,6 +1156,8 @@ static int __init arch_timer_of_init(struct device_node *np) for (i = ARCH_TIMER_PHYS_SECURE_PPI; i < ARCH_TIMER_MAX_TIMER_PPI; i++) arch_timer_ppi[i] = irq_of_parse_and_map(np, i); + arch_timer_kvm_info.virtual_irq = arch_timer_ppi[ARCH_TIMER_VIRT_PPI]; + rate = arch_timer_get_cntfrq(); arch_timer_of_configure_rate(rate, np); @@ -1203,7 +1185,14 @@ static int __init arch_timer_of_init(struct device_node *np) arch_counter_suspend_stop = of_property_read_bool(np, "arm,no-tick-in-suspend"); - return arch_timer_init(); + ret = arch_timer_register(); + if (ret) + return ret; + + if (arch_timer_needs_of_probing()) + return 0; + + return arch_timer_common_init(); } CLOCKSOURCE_OF_DECLARE(armv7_arch_timer, "arm,armv7-timer", arch_timer_of_init); CLOCKSOURCE_OF_DECLARE(armv8_arch_timer, "arm,armv8-timer", arch_timer_of_init); @@ -1285,7 +1274,8 @@ static int __init arch_timer_mem_init(struct device_node *np) if (ret) goto out; - return arch_timer_common_init(); + if (!arch_timer_needs_of_probing()) + ret = arch_timer_common_init(); out: iounmap(cntctlbase); of_node_put(best_frame); @@ -1314,6 +1304,7 @@ static int __init map_generic_timer_interrupt(u32 interrupt, u32 flags) /* Initialize per-processor generic timer */ static int __init arch_timer_acpi_init(struct acpi_table_header *table) { + int ret; struct acpi_table_gtdt *gtdt; if (arch_timers_present & ARCH_TIMER_TYPE_CP15) { @@ -1341,6 +1332,8 @@ static int __init arch_timer_acpi_init(struct acpi_table_header *table) map_generic_timer_interrupt(gtdt->non_secure_el2_interrupt, gtdt->non_secure_el2_flags); + arch_timer_kvm_info.virtual_irq = arch_timer_ppi[ARCH_TIMER_VIRT_PPI]; + /* * When probing via ACPI, we have no mechanism to override the sysreg * CNTFRQ value. This *must* be correct. @@ -1363,8 +1356,11 @@ static int __init arch_timer_acpi_init(struct acpi_table_header *table) /* Check for globally applicable workarounds */ arch_timer_check_ool_workaround(ate_match_acpi_oem_info, table); - arch_timer_init(); - return 0; + ret = arch_timer_register(); + if (ret) + return ret; + + return arch_timer_common_init(); } CLOCKSOURCE_ACPI_DECLARE(arch_timer, ACPI_SIG_GTDT, arch_timer_acpi_init); #endif