From patchwork Mon Feb 17 10:05:00 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Philipp Zabel X-Patchwork-Id: 320907 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:770:15f::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id B1F162C00AF for ; Mon, 17 Feb 2014 21:14:55 +1100 (EST) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WFL6O-0002BK-Rq; Mon, 17 Feb 2014 10:07:05 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WFL5X-0008B9-KG; Mon, 17 Feb 2014 10:06:11 +0000 Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WFL4v-00082g-7M for linux-arm-kernel@lists.infradead.org; Mon, 17 Feb 2014 10:05:42 +0000 Received: from dude.hi.pengutronix.de ([10.1.0.7] helo=dude.pengutronix.de) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1WFL4T-0002Sz-OG; Mon, 17 Feb 2014 11:05:05 +0100 From: Philipp Zabel To: Shawn Guo Subject: [PATCH v3 4/7] ARM: imx6: gpc: Add observed worst case latencies Date: Mon, 17 Feb 2014 11:05:00 +0100 Message-Id: <1392631503-17283-5-git-send-email-p.zabel@pengutronix.de> X-Mailer: git-send-email 1.8.5.3 In-Reply-To: <1392631503-17283-1-git-send-email-p.zabel@pengutronix.de> References: <1392631503-17283-1-git-send-email-p.zabel@pengutronix.de> X-SA-Exim-Connect-IP: 10.1.0.7 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-20140217_050534_285460_97F3BFAF X-CRM114-Status: GOOD ( 13.44 ) X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.6 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] 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-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org 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 e16e36a..9ca81d8 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);