From patchwork Fri Sep 28 14:16:52 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ulf Hansson X-Patchwork-Id: 1519761 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork1.kernel.org (Postfix) with ESMTP id 854A13FE80 for ; Fri, 28 Sep 2012 14:20:02 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1THbNz-0000f0-Lj; Fri, 28 Sep 2012 14:17:47 +0000 Received: from eu1sys200aog118.obsmtp.com ([207.126.144.145]) by merlin.infradead.org with smtps (Exim 4.76 #1 (Red Hat Linux)) id 1THbNa-0000YX-Vx for linux-arm-kernel@lists.infradead.org; Fri, 28 Sep 2012 14:17:24 +0000 Received: from beta.dmz-us.st.com ([167.4.1.35]) (using TLSv1) by eu1sys200aob118.postini.com ([207.126.147.11]) with SMTP ID DSNKUGWxajBJLAOc4Den7zfq3diSeuM4+vGh@postini.com; Fri, 28 Sep 2012 14:17:22 UTC Received: from zeta.dmz-us.st.com (ns4.st.com [167.4.16.71]) by beta.dmz-us.st.com (STMicroelectronics) with ESMTP id 9CB233B; Fri, 28 Sep 2012 14:16:36 +0000 (GMT) Received: from relay2.stm.gmessaging.net (unknown [10.230.100.18]) by zeta.dmz-us.st.com (STMicroelectronics) with ESMTP id 273BE59; Fri, 28 Sep 2012 10:05:11 +0000 (GMT) Received: from exdcvycastm022.EQ1STM.local (alteon-source-exch [10.230.100.61]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (Client CN "exdcvycastm022", Issuer "exdcvycastm022" (not verified)) by relay2.stm.gmessaging.net (Postfix) with ESMTPS id 1F690A8088; Fri, 28 Sep 2012 16:17:01 +0200 (CEST) Received: from steludxu1397.stericsson.com (10.230.100.153) by smtp.stericsson.com (10.230.100.30) with Microsoft SMTP Server (TLS) id 8.3.83.0; Fri, 28 Sep 2012 16:17:06 +0200 From: Ulf Hansson To: "Rafael J. Wysocki" , , Subject: [PATCH 2/4] mfd: db8500: Provide cpufreq table as platform data Date: Fri, 28 Sep 2012 16:16:52 +0200 Message-ID: <1348841814-13645-3-git-send-email-ulf.hansson@stericsson.com> X-Mailer: git-send-email 1.7.10 In-Reply-To: <1348841814-13645-1-git-send-email-ulf.hansson@stericsson.com> References: <1348841814-13645-1-git-send-email-ulf.hansson@stericsson.com> MIME-Version: 1.0 X-Spam-Note: CRM114 invocation failed X-Spam-Score: -4.2 (----) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-4.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [207.126.144.145 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Philippe Begnic , Ulf Hansson , Vincent Guittot , Samuel Ortiz , Jonas Aberg , Linus Walleij , Rickard Andersson , Lee Jones , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Ulf Hansson The cpufreq table needs dynamically update due to what the PRCMU firmware is supporting. The table is then provided through to the mfd child device as platform data. Cc: Samuel Ortiz Signed-off-by: Ulf Hansson --- drivers/mfd/db8500-prcmu.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index bac4876..163d1b3 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include @@ -3001,6 +3002,15 @@ static struct regulator_init_data db8500_regulators[DB8500_NUM_REGULATORS] = { }, }; +/* CPU FREQ table, may be changed due to if MAX_OPP is supported. */ +static struct cpufreq_frequency_table db8500_cpufreq_table[] = { + { .frequency = 200000, .index = ARM_EXTCLK,}, + { .frequency = 400000, .index = ARM_50_OPP,}, + { .frequency = 800000, .index = ARM_100_OPP,}, + { .frequency = CPUFREQ_TABLE_END,}, /* To be used for MAX_OPP. */ + { .frequency = CPUFREQ_TABLE_END,}, +}; + static struct resource ab8500_resources[] = { [0] = { .start = IRQ_DB8500_AB8500, @@ -3019,6 +3029,8 @@ static struct mfd_cell db8500_prcmu_devs[] = { { .name = "cpufreq-u8500", .of_compatible = "stericsson,cpufreq-u8500", + .platform_data = &db8500_cpufreq_table, + .pdata_size = sizeof(db8500_cpufreq_table), }, { .name = "ab8500-core", @@ -3029,6 +3041,14 @@ static struct mfd_cell db8500_prcmu_devs[] = { }, }; +static void db8500_prcmu_update_cpufreq(void) +{ + if (prcmu_has_arm_maxopp()) { + db8500_cpufreq_table[3].frequency = 1000000; + db8500_cpufreq_table[3].index = ARM_MAX_OPP; + } +} + /** * prcmu_fw_init - arch init call for the Linux PRCMU fw init logic * @@ -3073,6 +3093,8 @@ static int __devinit db8500_prcmu_probe(struct platform_device *pdev) if (cpu_is_u8500v20_or_later()) prcmu_config_esram0_deep_sleep(ESRAM0_DEEP_SLEEP_STATE_RET); + db8500_prcmu_update_cpufreq(); + err = mfd_add_devices(&pdev->dev, 0, db8500_prcmu_devs, ARRAY_SIZE(db8500_prcmu_devs), NULL, 0, NULL); if (err) {