[v2,1/5] OMAP: powerdomain: Infrastructure to put arch specific code

Message ID	1291131848-31640-2-git-send-email-rnayak@ti.com (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 oAUFiQuk023182 for <patchwork-omap@patchwork.kernel.org>; Tue, 30 Nov 2010 15:44:27 GMT From: Rajendra Nayak <rnayak@ti.com> To: linux-omap@vger.kernel.org Cc: paul@pwsan.com, khilman@deeprootsystems.com, b-cousson@ti.com, Rajendra Nayak <rnayak@ti.com> Subject: [PATCH v2 1/5] OMAP: powerdomain: Infrastructure to put arch specific code Date: Tue, 30 Nov 2010 21:14:04 +0530 Message-Id: <1291131848-31640-2-git-send-email-rnayak@ti.com> In-Reply-To: <1291131848-31640-1-git-send-email-rnayak@ti.com> References: <1291131848-31640-1-git-send-email-rnayak@ti.com> Sender: linux-omap-owner@vger.kernel.org Precedence: bulk

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 40562dd..76c531a 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -316,7 +316,7 @@ 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/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c index 6527ec3..3aa3eb3 100644 --- a/arch/arm/mach-omap2/powerdomain.c +++ b/arch/arm/mach-omap2/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_ops *arch_pwrdm; + /* Private functions */ static struct powerdomain *_pwrdm_lookup(const char *name) @@ -211,6 +213,7 @@ static int _pwrdm_post_transition_cb(struct powerdomain *pwrdm, void *unused) /** * pwrdm_init - set up the powerdomain layer * @pwrdm_list: array of struct powerdomain pointers to register + * @custom_funcs: func pointers for arch specfic implementations * * Loop through the array of powerdomains @pwrdm_list, registering all * that are available on the current CPU. If pwrdm_list is supplied @@ -218,7 +221,7 @@ 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_ops *custom_funcs) { struct powerdomain **p = NULL; @@ -234,6 +237,11 @@ void pwrdm_init(struct powerdomain **pwrdm_list) return; } + if (!custom_funcs) + WARN(1, "powerdomain: No custom pwrdm functions registered\n"); + else + arch_pwrdm = custom_funcs; + if (pwrdm_list) { for (p = pwrdm_list; *p; p++) _pwrdm_register(*p); @@ -1074,4 +1082,3 @@ int pwrdm_post_transition(void) pwrdm_for_each(_pwrdm_post_transition_cb, NULL); return 0; } - diff --git a/arch/arm/plat-omap/include/plat/powerdomain.h b/arch/arm/plat-omap/include/plat/powerdomain.h index 9ca420d..36364f2 100644 --- a/arch/arm/plat-omap/include/plat/powerdomain.h +++ b/arch/arm/plat-omap/include/plat/powerdomain.h @@ -117,8 +117,49 @@ struct powerdomain { #endif }; +/** + * struct pwrdm_ops - Arch specfic function implementations + * @pwrdm_set_next_pwrst: Set the target power state for a pd + * @pwrdm_read_next_pwrst: Read the target power state set for a pd + * @pwrdm_read_pwrst: Read the current power state of a pd + * @pwrdm_read_prev_pwrst: Read the prev power state entered by the pd + * @pwrdm_set_logic_retst: Set the logic state in RET for a pd + * @pwrdm_set_mem_onst: Set the Memory state in ON for a pd + * @pwrdm_set_mem_retst: Set the Memory state in RET for a pd + * @pwrdm_read_logic_pwrst: Read the current logic state of a pd + * @pwrdm_read_prev_logic_pwrst: Read the previous logic state entered by a pd + * @pwrdm_read_logic_retst: Read the logic state in RET for a pd + * @pwrdm_read_mem_pwrst: Read the current memory state of a pd + * @pwrdm_read_prev_mem_pwrst: Read the previous memory state entered by a pd + * @pwrdm_read_mem_retst: Read the memory state in RET for a pd + * @pwrdm_clear_all_prev_pwrst: Clear all previous power states logged for a pd + * @pwrdm_enable_hdwr_sar: Enable Hardware Save-Restore feature for the pd + * @pwrdm_disable_hdwr_sar: Disable Hardware Save-Restore feature for a pd + * @pwrdm_set_lowpwrstchange: Enable pd transitions from a shallow to deep sleep + * @pwrdm_wait_transition: Wait for a pd state transition to complete + */ +struct pwrdm_ops { + 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_ops *custom_funcs); struct powerdomain *pwrdm_lookup(const char *name);

[v2,1/5] OMAP: powerdomain: Infrastructure to put arch specific code

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