From patchwork Wed Feb 16 06:52:48 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Paul Walmsley X-Patchwork-Id: 566001 X-Patchwork-Delegate: paul@pwsan.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 p1G6sGtV021604 for ; Wed, 16 Feb 2011 06:54:52 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751378Ab1BPGyP (ORCPT ); Wed, 16 Feb 2011 01:54:15 -0500 Received: from utopia.booyaka.com ([72.9.107.138]:47515 "EHLO utopia.booyaka.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752039Ab1BPGyD (ORCPT ); Wed, 16 Feb 2011 01:54:03 -0500 Received: (qmail 11981 invoked by uid 1019); 16 Feb 2011 06:54:02 -0000 MBOX-Line: From nobody Tue Feb 15 23:52:48 2011 Subject: [PATCH 05/11] OMAP2+: clock: add interface clock type code with autoidle support To: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org From: Paul Walmsley Date: Tue, 15 Feb 2011 23:52:48 -0700 Message-ID: <20110216065247.22089.10049.stgit@twilight.localdomain> In-Reply-To: <20110216065030.22089.61217.stgit@twilight.localdomain> References: <20110216065030.22089.61217.stgit@twilight.localdomain> User-Agent: StGit/0.15 MIME-Version: 1.0 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]); Wed, 16 Feb 2011 06:54:52 +0000 (UTC) diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 41cb404..a28ba5a 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -107,19 +107,21 @@ obj-$(CONFIG_ARCH_OMAP3) += clockdomain.o \ clockdomains2xxx_3xxx_data.o obj-$(CONFIG_ARCH_OMAP4) += clockdomain.o \ clockdomains44xx_data.o + # Clock framework obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) clock2xxx.o \ clkt2xxx_sys.o \ clkt2xxx_dpllcore.o \ clkt2xxx_virt_prcm_set.o \ clkt2xxx_apll.o clkt2xxx_osc.o \ - clkt2xxx_dpll.o + clkt2xxx_dpll.o clkt_iclk.o obj-$(CONFIG_ARCH_OMAP2420) += clock2420_data.o obj-$(CONFIG_ARCH_OMAP2430) += clock2430.o clock2430_data.o obj-$(CONFIG_ARCH_OMAP3) += $(clock-common) clock3xxx.o \ clock34xx.o clkt34xx_dpll3m2.o \ clock3517.o clock36xx.o \ - dpll3xxx.o clock3xxx_data.o + dpll3xxx.o clock3xxx_data.o \ + clkt_iclk.o obj-$(CONFIG_ARCH_OMAP4) += $(clock-common) clock44xx_data.o \ dpll3xxx.o dpll44xx.o diff --git a/arch/arm/mach-omap2/clkt_iclk.c b/arch/arm/mach-omap2/clkt_iclk.c new file mode 100644 index 0000000..dd8a6d3 --- /dev/null +++ b/arch/arm/mach-omap2/clkt_iclk.c @@ -0,0 +1,73 @@ +/* + * OMAP2/3 interface clock control + * + * Copyright (C) 2011 Nokia Corporation + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#undef DEBUG + +#include +#include +#include + +#include +#include + +#include "clock.h" +#include "clock2xxx.h" +#include "cm2xxx_3xxx.h" +#include "cm-regbits-24xx.h" + +/* Private functions */ + +/* XXX */ +void omap2_clkt_iclk_allow_idle(struct clk *clk) +{ + u32 v, r; + + r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); + + v = __raw_readl((__force void __iomem *)r); + v |= (1 << clk->enable_bit); + __raw_writel(v, (__force void __iomem *)r); +} + +/* XXX */ +void omap2_clkt_iclk_deny_idle(struct clk *clk) +{ + u32 v, r; + + r = ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); + + v = __raw_readl((__force void __iomem *)r); + v &= ~(1 << clk->enable_bit); + __raw_writel(v, (__force void __iomem *)r); +} + +/* Public data */ + +const struct clkops clkops_omap2_iclk_dflt_wait = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .find_companion = omap2_clk_dflt_find_companion, + .find_idlest = omap2_clk_dflt_find_idlest, + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, +}; + +const struct clkops clkops_omap2_iclk_dflt = { + .enable = omap2_dflt_clk_enable, + .disable = omap2_dflt_clk_disable, + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, +}; + +const struct clkops clkops_omap2_iclk_idle_only = { + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, +}; + diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 9972d89..5008f14 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -2,7 +2,7 @@ * linux/arch/arm/mach-omap2/clock.h * * Copyright (C) 2005-2009 Texas Instruments, Inc. - * Copyright (C) 2004-2009 Nokia Corporation + * Copyright (C) 2004-2011 Nokia Corporation * * Contacts: * Richard Woodruff @@ -86,6 +86,10 @@ long omap2_clksel_round_rate(struct clk *clk, unsigned long target_rate); int omap2_clksel_set_rate(struct clk *clk, unsigned long rate); int omap2_clksel_set_parent(struct clk *clk, struct clk *new_parent); +/* clkt_iclk.c public functions */ +extern void omap2_clkt_iclk_allow_idle(struct clk *clk); +extern void omap2_clkt_iclk_deny_idle(struct clk *clk); + u32 omap2_get_dpll_rate(struct clk *clk); void omap2_init_dpll_parent(struct clk *clk); @@ -148,6 +152,9 @@ extern void omap2_clk_exit_cpufreq_table(struct cpufreq_frequency_table **table) #define omap2_clk_exit_cpufreq_table 0 #endif +extern const struct clkops clkops_omap2_iclk_dflt_wait; +extern const struct clkops clkops_omap2_iclk_dflt; +extern const struct clkops clkops_omap2_iclk_idle_only; extern const struct clkops clkops_omap2xxx_dpll_ops; extern const struct clkops clkops_omap3_noncore_dpll_ops; extern const struct clkops clkops_omap3_core_dpll_ops;