From mboxrd@z Thu Jan 1 00:00:00 1970 From: Durgadoss R Subject: [PATCH 13/13] Thermal: Platform layer changes to provide thermal data Date: Thu, 9 Aug 2012 18:16:05 +0530 Message-ID: <1344516365-7230-14-git-send-email-durgadoss.r@intel.com> References: <1344516365-7230-1-git-send-email-durgadoss.r@intel.com> Return-path: Received: from mga02.intel.com ([134.134.136.20]:14321 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932469Ab2HIMqu (ORCPT ); Thu, 9 Aug 2012 08:46:50 -0400 In-Reply-To: <1344516365-7230-1-git-send-email-durgadoss.r@intel.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: lenb@kernel.org, rui.zhang@intel.com, rjw@sisk.pl, linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org Cc: eduardo.valentin@ti.com, amit.kachhap@linaro.org, wni@nvidia.com, Durgadoss R This patch shows how can we add platform specific thermal data required by the thermal framework. This is just an example patch, and _not_ for merge. Signed-off-by: Durgadoss R --- arch/x86/platform/mrst/mrst.c | 42 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c index fd41a92..0440db5 100644 --- a/arch/x86/platform/mrst/mrst.c +++ b/arch/x86/platform/mrst/mrst.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -78,6 +79,30 @@ struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX]; EXPORT_SYMBOL_GPL(sfi_mrtc_array); int sfi_mrtc_num; +#define MRST_THERMAL_ZONES 3 +struct thermal_zone_params tzp[MRST_THERMAL_ZONES] = { + { .thermal_zone_name = "CPU", + .throttle_policy = THERMAL_FAIR_SHARE, + .num_cdevs = 2, + .cdevs_name = {"CPU", "Battery"}, + .trip_mask = {0x0F, 0x08}, + .weights = {80, 20}, }, + + { .thermal_zone_name = "Battery", + .throttle_policy = THERMAL_FAIR_SHARE, + .num_cdevs = 1, + .cdevs_name = {"Battery"}, + .trip_mask = {0x0F}, + .weights = {100}, }, + + { .thermal_zone_name = "Skin", + .throttle_policy = THERMAL_FAIR_SHARE, + .num_cdevs = 2, + .cdevs_name = {"Display", "Battery"}, + .trip_mask = {0x0F, 0x0F}, + .weights = {50, 50}, } +}; + static void mrst_power_off(void) { } @@ -983,10 +1008,27 @@ static int __init sfi_parse_devs(struct sfi_table_header *table) return 0; } +static int mrst_get_thermal_params(struct thermal_zone_device *tz) +{ + int i; + + for (i = 0; i < MRST_THERMAL_ZONES; i++) { + if (!strcmp(tzp[i].thermal_zone_name, tz->type)) { + tz->tzp = &tzp[i]; + return 0; + } + } + return -ENODEV; +} + static int __init mrst_platform_init(void) { sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio); sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs); + + /* Set platform thermal data pointer */ + get_platform_thermal_params = mrst_get_thermal_params; + return 0; } arch_initcall(mrst_platform_init); -- 1.7.9.5