From patchwork Fri Feb 18 01:42:27 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: omar ramirez X-Patchwork-Id: 572841 X-Patchwork-Delegate: tony@atomide.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by demeter1.kernel.org (8.14.4/8.14.3) with ESMTP id p1I1rnEd009463 for ; Fri, 18 Feb 2011 01:53:49 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753320Ab1BRBxr (ORCPT ); Thu, 17 Feb 2011 20:53:47 -0500 Received: from arroyo.ext.ti.com ([192.94.94.40]:33643 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752318Ab1BRBxr (ORCPT ); Thu, 17 Feb 2011 20:53:47 -0500 Received: from dlep35.itg.ti.com ([157.170.170.118]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id p1I1rffG000941 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 17 Feb 2011 19:53:41 -0600 Received: from legion.dal.design.ti.com (localhost [127.0.0.1]) by dlep35.itg.ti.com (8.13.7/8.13.7) with ESMTP id p1I1rdhU014614; Thu, 17 Feb 2011 19:53:39 -0600 (CST) Received: from localhost (bacab.am.dhcp.ti.com [128.247.77.143]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id p1I1rdf21044; Thu, 17 Feb 2011 19:53:39 -0600 (CST) From: Omar Ramirez Luna To: Tony Lindgren Cc: Russell King , Kevin Hilman , Benoit Cousson , Hiroshi DOYU , Sourav Poddar , lo , lak , Omar Ramirez Luna Subject: [PATCH v6 4/4] OMAP: mailbox: use runtime pm for clk and sysc handling Date: Thu, 17 Feb 2011 19:42:27 -0600 Message-Id: <1297993347-5654-5-git-send-email-omar.ramirez@ti.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1297993347-5654-1-git-send-email-omar.ramirez@ti.com> References: <1297993347-5654-1-git-send-email-omar.ramirez@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter1.kernel.org [140.211.167.41]); Fri, 18 Feb 2011 01:53:49 +0000 (UTC) diff --git a/arch/arm/mach-omap2/mailbox.c b/arch/arm/mach-omap2/mailbox.c index de352bd..9a61e1f 100644 --- a/arch/arm/mach-omap2/mailbox.c +++ b/arch/arm/mach-omap2/mailbox.c @@ -14,12 +14,11 @@ #include #include #include +#include #include #include #define MAILBOX_REVISION 0x000 -#define MAILBOX_SYSCONFIG 0x010 -#define MAILBOX_SYSSTATUS 0x014 #define MAILBOX_MESSAGE(m) (0x040 + 4 * (m)) #define MAILBOX_FIFOSTATUS(m) (0x080 + 4 * (m)) #define MAILBOX_MSGSTATUS(m) (0x0c0 + 4 * (m)) @@ -33,17 +32,6 @@ #define MAILBOX_IRQ_NEWMSG(m) (1 << (2 * (m))) #define MAILBOX_IRQ_NOTFULL(m) (1 << (2 * (m) + 1)) -/* SYSCONFIG: register bit definition */ -#define AUTOIDLE (1 << 0) -#define SOFTRESET (1 << 1) -#define SMARTIDLE (2 << 3) -#define OMAP4_SOFTRESET (1 << 0) -#define OMAP4_NOIDLE (1 << 2) -#define OMAP4_SMARTIDLE (2 << 2) - -/* SYSSTATUS: register bit definition */ -#define RESETDONE (1 << 0) - #define MBOX_REG_SIZE 0x120 #define OMAP4_MBOX_REG_SIZE 0x130 @@ -70,8 +58,6 @@ struct omap_mbox2_priv { unsigned long irqdisable; }; -static struct clk *mbox_ick_handle; - static void omap2_mbox_enable_irq(struct omap_mbox *mbox, omap_mbox_type_t irq); @@ -89,53 +75,13 @@ static inline void mbox_write_reg(u32 val, size_t ofs) static int omap2_mbox_startup(struct omap_mbox *mbox) { u32 l; - unsigned long timeout; - mbox_ick_handle = clk_get(NULL, "mailboxes_ick"); - if (IS_ERR(mbox_ick_handle)) { - printk(KERN_ERR "Could not get mailboxes_ick: %ld\n", - PTR_ERR(mbox_ick_handle)); - return PTR_ERR(mbox_ick_handle); - } - clk_enable(mbox_ick_handle); - - if (cpu_is_omap44xx()) { - mbox_write_reg(OMAP4_SOFTRESET, MAILBOX_SYSCONFIG); - timeout = jiffies + msecs_to_jiffies(20); - do { - l = mbox_read_reg(MAILBOX_SYSCONFIG); - if (!(l & OMAP4_SOFTRESET)) - break; - } while (!time_after(jiffies, timeout)); - - if (l & OMAP4_SOFTRESET) { - pr_err("Can't take mailbox out of reset\n"); - return -ENODEV; - } - } else { - mbox_write_reg(SOFTRESET, MAILBOX_SYSCONFIG); - timeout = jiffies + msecs_to_jiffies(20); - do { - l = mbox_read_reg(MAILBOX_SYSSTATUS); - if (l & RESETDONE) - break; - } while (!time_after(jiffies, timeout)); - - if (!(l & RESETDONE)) { - pr_err("Can't take mailbox out of reset\n"); - return -ENODEV; - } - } + pm_runtime_enable(mbox->dev->parent); + pm_runtime_get_sync(mbox->dev->parent); l = mbox_read_reg(MAILBOX_REVISION); pr_debug("omap mailbox rev %d.%d\n", (l & 0xf0) >> 4, (l & 0x0f)); - if (cpu_is_omap44xx()) - l = OMAP4_SMARTIDLE; - else - l = SMARTIDLE | AUTOIDLE; - mbox_write_reg(l, MAILBOX_SYSCONFIG); - omap2_mbox_enable_irq(mbox, IRQ_RX); return 0; @@ -143,9 +89,8 @@ static int omap2_mbox_startup(struct omap_mbox *mbox) static void omap2_mbox_shutdown(struct omap_mbox *mbox) { - clk_disable(mbox_ick_handle); - clk_put(mbox_ick_handle); - mbox_ick_handle = NULL; + pm_runtime_put_sync(mbox->dev->parent); + pm_runtime_disable(mbox->dev->parent); } /* Mailbox FIFO handle functions */