From patchwork Thu Sep 23 12:34:45 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajendra Nayak X-Patchwork-Id: 201842 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 o8NCZ8UV003547 for ; Thu, 23 Sep 2010 12:35:08 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755187Ab0IWMfG (ORCPT ); Thu, 23 Sep 2010 08:35:06 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:50026 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755163Ab0IWMfC (ORCPT ); Thu, 23 Sep 2010 08:35:02 -0400 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id o8NCYvk8010046 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 23 Sep 2010 07:34:59 -0500 Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id o8NCYrng028410; Thu, 23 Sep 2010 18:04:53 +0530 (IST) Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by linfarm476.india.ti.com (8.12.11/8.12.11) with ESMTP id o8NCYrpJ026508; Thu, 23 Sep 2010 18:04:53 +0530 Received: (from a0131687@localhost) by linfarm476.india.ti.com (8.12.11/8.12.11/Submit) id o8NCYrA9026506; Thu, 23 Sep 2010 18:04:53 +0530 From: Rajendra Nayak To: linux-omap@vger.kernel.org Cc: paul@pwsan.com, khilman@deeprootsystems.com, b-cousson@ti.com, Rajendra Nayak Subject: [RFC 2/8] OMAP: powerdomain: Infrastructure to put arch specific code Date: Thu, 23 Sep 2010 18:04:45 +0530 Message-Id: <1285245291-26442-3-git-send-email-rnayak@ti.com> X-Mailer: git-send-email 1.5.6.6 In-Reply-To: <1285245291-26442-2-git-send-email-rnayak@ti.com> References: <1285245291-26442-1-git-send-email-rnayak@ti.com> <1285245291-26442-2-git-send-email-rnayak@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-4.2.3 (demeter1.kernel.org [140.211.167.41]); Thu, 23 Sep 2010 12:35:08 +0000 (UTC) diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index b9ea70b..6cb5a39 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -315,7 +315,7 @@ void __init omap2_init_common_hw(struct omap_sdrc_params *sdrc_cs0, { u8 skip_setup_idle = 0; - pwrdm_init(powerdomains_omap); + pwrdm_init(powerdomains_omap, NULL); clkdm_init(clockdomains_omap, clkdm_autodeps); if (cpu_is_omap242x()) omap2420_hwmod_init(); diff --git a/arch/arm/plat-omap/include/plat/powerdomain.h b/arch/arm/plat-omap/include/plat/powerdomain.h index 3ea7220..18b722d 100644 --- a/arch/arm/plat-omap/include/plat/powerdomain.h +++ b/arch/arm/plat-omap/include/plat/powerdomain.h @@ -117,8 +117,28 @@ struct powerdomain { #endif }; +struct pwrdm_functions { + int (*pwrdm_set_next_pwrst)(struct powerdomain *pwrdm, u8 pwrst); + int (*pwrdm_read_next_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_prev_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_set_logic_retst)(struct powerdomain *pwrdm, u8 pwrst); + int (*pwrdm_set_mem_onst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst); + int (*pwrdm_set_mem_retst)(struct powerdomain *pwrdm, u8 bank, u8 pwrst); + int (*pwrdm_read_logic_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_prev_logic_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_read_logic_retst)(struct powerdomain *pwrdm); + int (*pwrdm_read_mem_pwrst)(struct powerdomain *pwrdm, u8 bank); + int (*pwrdm_read_prev_mem_pwrst)(struct powerdomain *pwrdm, u8 bank); + int (*pwrdm_read_mem_retst)(struct powerdomain *pwrdm, u8 bank); + int (*pwrdm_clear_all_prev_pwrst)(struct powerdomain *pwrdm); + int (*pwrdm_enable_hdwr_sar)(struct powerdomain *pwrdm); + int (*pwrdm_disable_hdwr_sar)(struct powerdomain *pwrdm); + int (*pwrdm_set_lowpwrstchange)(struct powerdomain *pwrdm); + int (*pwrdm_wait_transition)(struct powerdomain *pwrdm); +}; -void pwrdm_init(struct powerdomain **pwrdm_list); +void pwrdm_init(struct powerdomain **pwrdm_list, struct pwrdm_functions *custom_funcs); struct powerdomain *pwrdm_lookup(const char *name); diff --git a/arch/arm/plat-omap/powerdomain.c b/arch/arm/plat-omap/powerdomain.c index 9204799..f90bfd3 100644 --- a/arch/arm/plat-omap/powerdomain.c +++ b/arch/arm/plat-omap/powerdomain.c @@ -80,6 +80,8 @@ static u16 pwrstst_reg_offs; /* pwrdm_list contains all registered struct powerdomains */ static LIST_HEAD(pwrdm_list); +static struct pwrdm_functions *arch_pwrdm; + /* Private functions */ static struct powerdomain *_pwrdm_lookup(const char *name) @@ -218,7 +220,7 @@ static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused) * registered. No return value. XXX pwrdm_list is not really a * "list"; it is an array. Rename appropriately. */ -void pwrdm_init(struct powerdomain **pwrdm_list) +void pwrdm_init(struct powerdomain **pwrdm_list, struct pwrdm_functions * custom_funcs) { struct powerdomain **p = NULL; @@ -234,6 +236,13 @@ void pwrdm_init(struct powerdomain **pwrdm_list) return; } + if (!custom_funcs) { + printk(KERN_ERR "No custom pwrdm functions registered\n"); + BUG(); + } + + arch_pwrdm = custom_funcs; + if (pwrdm_list) { for (p = pwrdm_list; *p; p++) _pwrdm_register(*p); @@ -1074,4 +1083,3 @@ int pwrdm_post_transition(void) pwrdm_for_each(_pwrdm_post_transition_cb, NULL); return 0; } -