From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Barada Subject: cpufreq-info doesn't work in linux-3.0 on DM3730 Date: Sat, 01 Oct 2011 13:32:19 -0400 Message-ID: <4E874EA3.6060903@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-gy0-f174.google.com ([209.85.160.174]:58532 "EHLO mail-gy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750782Ab1JARbL (ORCPT ); Sat, 1 Oct 2011 13:31:11 -0400 Received: by gyg10 with SMTP id 10so2355457gyg.19 for ; Sat, 01 Oct 2011 10:31:10 -0700 (PDT) Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "linux-omap@vger.kernel.org" I'm trying to get frequency scaling working in linux-3.0, and it after digging into why cpufreq-info works in 2.6.32 and doesn't in 3.0, I've found that omap_cpu_init() returs -ENOENT due to clk_get(NULL, "virt_prcm_set") failing. In the older 2.6.32 kernel it used "arm_fck" for MPU_CLK instead of "virt_prcm_set", but that option isn't in the linux-3.0 source (or the current source in tony's tree on github.com). I tried reverting to "arm_fck", but on a DM3730 cpupfreq-info only shows 600Mhz as a possibility, and none of the other operating points. Does anyone have CPU frequency scaling working in linux-3.0 and have any suggestions on what I'm doing wrong? -- Peter Barada peter.barada@gmail.com