[03/14] OMAP: powerdomain: Arch specific funcs for state control

Message ID	20101207012504.3708.7909.stgit@twilight.localdomain (mailing list archive)
State	New, archived
Delegated to:	Paul Walmsley
Headers	show 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 oB71hrH2028138 for <patchwork-omap@patchwork.kernel.org>; Tue, 7 Dec 2010 01:43:54 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754322Ab0LGBnw (ORCPT <rfc822;patchwork-omap@patchwork.kernel.org>); Mon, 6 Dec 2010 20:43:52 -0500 Received: from utopia.booyaka.com ([72.9.107.138]:41208 "EHLO utopia.booyaka.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752901Ab0LGBnv (ORCPT <rfc822; linux-omap@vger.kernel.org>); Mon, 6 Dec 2010 20:43:51 -0500 Received: (qmail 7718 invoked by uid 1019); 7 Dec 2010 01:43:44 -0000 MBOX-Line: From nobody Mon Dec 6 18:25:06 2010 Subject: [PATCH 03/14] OMAP: powerdomain: Arch specific funcs for state control To: linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org From: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@deeprootsystems.com>, Rajendra Nayak <rnayak@ti.com>, Benoit Cousson <b-cousson@ti.com> Date: Mon, 06 Dec 2010 18:25:06 -0700 Message-ID: <20101207012504.3708.7909.stgit@twilight.localdomain> In-Reply-To: <20101207012242.3708.45451.stgit@twilight.localdomain> References: <20101207012242.3708.45451.stgit@twilight.localdomain> User-Agent: StGit/0.15 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: <linux-omap.vger.kernel.org> X-Mailing-List: linux-omap@vger.kernel.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.3 (demeter1.kernel.org [140.211.167.41]); Tue, 07 Dec 2010 01:43:54 +0000 (UTC)

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index ddc0a6f..f8dcaf8 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -70,7 +70,12 @@ obj-$(CONFIG_ARCH_OMAP4) += prcm.o cm4xxx.o # OMAP powerdomain framework powerdomain-common += powerdomain.o powerdomains_data.o -obj-y += $(powerdomain-common) +obj-$(CONFIG_ARCH_OMAP2) += $(powerdomain-common) \ + powerdomain2xxx_3xxx.o +obj-$(CONFIG_ARCH_OMAP3) += $(powerdomain-common) \ + powerdomain2xxx_3xxx.o +obj-$(CONFIG_ARCH_OMAP4) += $(powerdomain-common) \ + powerdomain44xx.o # Clock framework obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) clock2xxx.o \ diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 3aa3eb3..0ae1ebf 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/powerdomain.c @@ -439,6 +439,8 @@ int pwrdm_get_mem_bank_count(struct powerdomain *pwrdm) */ int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) { + int ret = -EINVAL; + if (!pwrdm) return -EINVAL; @@ -448,11 +450,10 @@ int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) pr_debug("powerdomain: setting next powerstate for %s to %0x\n", pwrdm->name, pwrst); - prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, - (pwrst << OMAP_POWERSTATE_SHIFT), - pwrdm->prcm_offs, pwrstctrl_reg_offs); + if (arch_pwrdm && arch_pwrdm->pwrdm_set_next_pwrst) + ret = arch_pwrdm->pwrdm_set_next_pwrst(pwrdm, pwrst); - return 0; + return ret; } /** @@ -465,11 +466,15 @@ int pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) */ int pwrdm_read_next_pwrst(struct powerdomain *pwrdm) { + int ret = -EINVAL; + if (!pwrdm) return -EINVAL; - return prm_read_mod_bits_shift(pwrdm->prcm_offs, - pwrstctrl_reg_offs, OMAP_POWERSTATE_MASK); + if (arch_pwrdm && arch_pwrdm->pwrdm_read_next_pwrst) + ret = arch_pwrdm->pwrdm_read_next_pwrst(pwrdm); + + return ret; } /** @@ -482,11 +487,15 @@ int pwrdm_read_next_pwrst(struct powerdomain *pwrdm) */ int pwrdm_read_pwrst(struct powerdomain *pwrdm) { + int ret = -EINVAL; + if (!pwrdm) return -EINVAL; - return prm_read_mod_bits_shift(pwrdm->prcm_offs, - pwrstst_reg_offs, OMAP_POWERSTATEST_MASK); + if (arch_pwrdm && arch_pwrdm->pwrdm_read_pwrst) + ret = arch_pwrdm->pwrdm_read_pwrst(pwrdm); + + return ret; } /** @@ -499,11 +508,15 @@ int pwrdm_read_pwrst(struct powerdomain *pwrdm) */ int pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) { + int ret = -EINVAL; + if (!pwrdm) return -EINVAL; - return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST, - OMAP3430_LASTPOWERSTATEENTERED_MASK); + if (arch_pwrdm && arch_pwrdm->pwrdm_read_prev_pwrst) + ret = arch_pwrdm->pwrdm_read_prev_pwrst(pwrdm); + + return ret; } /** diff --git a/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c b/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c new file mode 100644 index 0000000..a25dd64 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomain2xxx_3xxx.c @@ -0,0 +1,62 @@ +/* + * OMAP2 and OMAP3 powerdomain control + * + * Copyright (C) 2009-2010 Texas Instruments, Inc. + * Copyright (C) 2007-2009 Nokia Corporation + * + * Derived from mach-omap2/powerdomain.c written by Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + * + * 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. + */ + +#include <linux/io.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <plat/prcm.h> +#include "prm.h" +#include "prm-regbits-34xx.h" +#include "powerdomains.h" + +/* Common functions across OMAP2 and OMAP3 */ +static int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, OMAP2_PM_PWSTCTRL); + return 0; +} + +static int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + return prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTCTRL, OMAP_POWERSTATE_MASK); +} + +static int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + return prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP2_PM_PWSTST, OMAP_POWERSTATEST_MASK); +} + +/* Applicable only for OMAP3. Not supported on OMAP2 */ +static int omap3_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP3430_PM_PREPWSTST, + OMAP3430_LASTPOWERSTATEENTERED_MASK); +} + +struct pwrdm_ops omap2_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, +}; + +struct pwrdm_ops omap3_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap2_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap2_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap2_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = omap3_pwrdm_read_prev_pwrst, +}; diff --git a/arch/arm/mach-omap2/powerdomain44xx.c b/arch/arm/mach-omap2/powerdomain44xx.c new file mode 100644 index 0000000..5dc337c --- /dev/null +++ b/arch/arm/mach-omap2/powerdomain44xx.c @@ -0,0 +1,55 @@ +/* + * OMAP4 powerdomain control + * + * Copyright (C) 2009-2010 Texas Instruments, Inc. + * Copyright (C) 2007-2009 Nokia Corporation + * + * Derived from mach-omap2/powerdomain.c written by Paul Walmsley + * Rajendra Nayak <rnayak@ti.com> + * + * 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. + */ + +#include <linux/io.h> +#include <linux/errno.h> +#include <linux/delay.h> +#include <plat/powerdomain.h> +#include <plat/prcm.h> +#include "prm.h" +#include "prm-regbits-44xx.h" +#include "powerdomains.h" + +static int omap4_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst) +{ + prm_rmw_mod_reg_bits(OMAP_POWERSTATE_MASK, + (pwrst << OMAP_POWERSTATE_SHIFT), + pwrdm->prcm_offs, OMAP4_PM_PWSTCTRL); + return 0; +} + +static int omap4_pwrdm_read_next_pwrst(struct powerdomain *pwrdm) +{ + return prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP4_PM_PWSTCTRL, OMAP_POWERSTATE_MASK); +} + +static int omap4_pwrdm_read_pwrst(struct powerdomain *pwrdm) +{ + return prm_read_mod_bits_shift(pwrdm->prcm_offs, + OMAP4_PM_PWSTST, OMAP_POWERSTATEST_MASK); +} + +static int omap4_pwrdm_read_prev_pwrst(struct powerdomain *pwrdm) +{ + return prm_read_mod_bits_shift(pwrdm->prcm_offs, OMAP4_PM_PWSTST, + OMAP4430_LASTPOWERSTATEENTERED_MASK); +} + +struct pwrdm_ops omap4_pwrdm_operations = { + .pwrdm_set_next_pwrst = omap4_pwrdm_set_next_pwrst, + .pwrdm_read_next_pwrst = omap4_pwrdm_read_next_pwrst, + .pwrdm_read_pwrst = omap4_pwrdm_read_pwrst, + .pwrdm_read_prev_pwrst = omap4_pwrdm_read_prev_pwrst, +}; diff --git a/arch/arm/mach-omap2/powerdomains.h b/arch/arm/mach-omap2/powerdomains.h new file mode 100644 index 0000000..e57bc41 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains.h @@ -0,0 +1,22 @@ +/* + * OMAP2+ powerdomain prototypes + * + * Copyright (C) 2010 Texas Instruments, Inc. + * + * Rajendra Nayak <rnayak@ti.com> + * + * 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. + */ + +#ifndef ARCH_ARM_MACH_OMAP2_POWERDOMAINS +#define ARCH_ARM_MACH_OMAP2_POWERDOMAINS + +#include <plat/powerdomain.h> + +extern struct pwrdm_ops omap2_pwrdm_operations; +extern struct pwrdm_ops omap3_pwrdm_operations; +extern struct pwrdm_ops omap4_pwrdm_operations; + +#endif /* ARCH_ARM_MACH_OMAP2_POWERDOMAINS */ diff --git a/arch/arm/mach-omap2/powerdomains_data.c b/arch/arm/mach-omap2/powerdomains_data.c index bf5b39b..29690c6 100644 --- a/arch/arm/mach-omap2/powerdomains_data.c +++ b/arch/arm/mach-omap2/powerdomains_data.c @@ -55,6 +55,7 @@ #include "powerdomains24xx.h" #include "powerdomains34xx.h" #include "powerdomains44xx.h" +#include "powerdomains.h" /* OMAP2/3-common powerdomains */ @@ -149,5 +150,10 @@ static struct powerdomain *powerdomains_omap[] __initdata = { void pwrdm_fw_init(void) { - pwrdm_init(powerdomains_omap, NULL); + if (cpu_is_omap24xx()) + pwrdm_init(powerdomains_omap, &omap2_pwrdm_operations); + else if (cpu_is_omap34xx()) + pwrdm_init(powerdomains_omap, &omap3_pwrdm_operations); + else if (cpu_is_omap44xx()) + pwrdm_init(powerdomains_omap, &omap4_pwrdm_operations); }

[03/14] OMAP: powerdomain: Arch specific funcs for state control

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