From patchwork Tue Feb 18 15:34:44 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Zabel X-Patchwork-Id: 3672831 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id AC8FFBF13A for ; Tue, 18 Feb 2014 15:36:59 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CA2292016C for ; Tue, 18 Feb 2014 15:36:58 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E01102015E for ; Tue, 18 Feb 2014 15:36:57 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WFmiZ-0002Rv-Be; Tue, 18 Feb 2014 15:36:19 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WFmiO-00021R-2P; Tue, 18 Feb 2014 15:36:08 +0000 Received: from bombadil.infradead.org ([2001:1868:205::9]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WFmhq-0001ye-1R for linux-arm-kernel@merlin.infradead.org; Tue, 18 Feb 2014 15:35:34 +0000 Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WFmhn-0001Df-Fe for linux-arm-kernel@lists.infradead.org; Tue, 18 Feb 2014 15:35:32 +0000 Received: from pizza.hi.pengutronix.de ([10.1.0.104] helo=pizza.pengutronix.de.) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1WFmhE-0004uq-NI; Tue, 18 Feb 2014 16:34:56 +0100 From: Philipp Zabel To: Shawn Guo Subject: [PATCH v4 4/7] ARM: imx6: gpc: Add observed worst case latencies Date: Tue, 18 Feb 2014 16:34:44 +0100 Message-Id: <1392737687-25003-5-git-send-email-p.zabel@pengutronix.de> X-Mailer: git-send-email 1.9.0.rc3 In-Reply-To: <1392737687-25003-1-git-send-email-p.zabel@pengutronix.de> References: <1392737687-25003-1-git-send-email-p.zabel@pengutronix.de> X-SA-Exim-Connect-IP: 10.1.0.104 X-SA-Exim-Mail-From: p.zabel@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140218_073531_759439_1B26AA6E X-CRM114-Status: GOOD ( 11.61 ) X-Spam-Score: -0.6 (/) Cc: Mark Rutland , devicetree@vger.kernel.org, kernel@pengutronix.de, Rob Herring , Philipp Zabel , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.8 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This avoids the "... latency exceeded, new value ..." warnings emitted by the power domain framework code whenever the PU domain is enabled or disabled. Signed-off-by: Philipp Zabel --- arch/arm/mach-imx/gpc.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c index c126d22..427d1d1 100644 --- a/arch/arm/mach-imx/gpc.c +++ b/arch/arm/mach-imx/gpc.c @@ -225,6 +225,8 @@ static struct generic_pm_domain imx6q_pu_domain = { .name = "PU", .power_off = imx6q_pm_pu_power_off, .power_on = imx6q_pm_pu_power_on, + .power_off_latency_ns = 25000, + .power_on_latency_ns = 2000000, }; int imx6q_pm_clk_add(struct device *dev) @@ -289,6 +291,13 @@ int imx6q_pm_clk_remove(struct device *dev) return 0; } +static struct gpd_timing_data pu_timing_data = { + .stop_latency_ns = 2000, + .start_latency_ns = 2000, + .save_state_latency_ns = 5000, + .restore_state_latency_ns = 20000000, /* VPU firmware reload */ +}; + static int imx6q_pm_notifier_call(struct notifier_block *nb, unsigned long event, void *data) { @@ -303,7 +312,7 @@ static int imx6q_pm_notifier_call(struct notifier_block *nb, if (!np || np != imx6q_pu_domain.of_node) return NOTIFY_DONE; - ret = pm_genpd_of_add_device(np, dev); + ret = __pm_genpd_of_add_device(np, dev, &pu_timing_data); if (ret) dev_err(dev, "failed to add to power domain: %d\n", ret);