From patchwork Mon Jun 24 10:50:40 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Kachhap X-Patchwork-Id: 2770221 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id AE6BC9F245 for ; Mon, 24 Jun 2013 10:56:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id A715F2016A for ; Mon, 24 Jun 2013 10:56:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9BC0E201D4 for ; Mon, 24 Jun 2013 10:56:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752599Ab3FXK4J (ORCPT ); Mon, 24 Jun 2013 06:56:09 -0400 Received: from mail-pa0-f44.google.com ([209.85.220.44]:52137 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753196Ab3FXKw3 (ORCPT ); Mon, 24 Jun 2013 06:52:29 -0400 Received: by mail-pa0-f44.google.com with SMTP id lj1so10866573pab.3 for ; Mon, 24 Jun 2013 03:52:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=byeQ/5dpff1oulG9OC0OG0SQAes1LpnmXzSSrs4kH6w=; b=B6ExFcoDdHtDApMRYPiazTt4QJukJ+RNUdQ4ojwB5FBj8ofYWlSJ1zT0qOnQI8aSXm Uy1tDGSXq8JLjFbppq2eBbHC+A5pgRBlOwPml98nvMnqLP+0eRanOSxsgkCXgoNwldBC zw5X5Dwrmat1QusXPAsKtj+c1tBXluwd2yAlynxWkYOvS0afcA55Jp8LNJbwzPAWRftT E7dvMHqyTL2XUVvzFkVvLYwfmRCPXYOneYlbZFssQL+G5MPFx9fs0Eid98FK0XHJ1ovg saLc4FdkwevytgrknsXjQG/mIRCEFLbTK1cyQfbn1MPVgVlaGGVGY1sCBwoevugGfpUm RQlA== X-Received: by 10.68.221.69 with SMTP id qc5mr5647605pbc.60.1372071148910; Mon, 24 Jun 2013 03:52:28 -0700 (PDT) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPSA id tq8sm17631973pbc.30.2013.06.24.03.52.24 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 24 Jun 2013 03:52:27 -0700 (PDT) From: Amit Daniel Kachhap To: linux-pm@vger.kernel.org, Zhang Rui , Eduardo Valentin Cc: linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, amit.kachhap@gmail.com, Kukjin Kim Subject: [PATCH V7 19/30] thermal: exynos: Add TMU features to check instead of using SOC type Date: Mon, 24 Jun 2013 16:20:40 +0530 Message-Id: <1372071051-3167-20-git-send-email-amit.daniel@samsung.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1372071051-3167-1-git-send-email-amit.daniel@samsung.com> References: <1372071051-3167-1-git-send-email-amit.daniel@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds several features supported by TMU as bitfields. This features varies across different SOC type and comparing the features present in the TMU is more logical than comparing the soc itself. Acked-by: Kukjin Kim Acked-by: Jonghwa Lee Acked-by: Eduardo Valentin Signed-off-by: Amit Daniel Kachhap --- drivers/thermal/samsung/exynos_tmu.c | 26 +++++++++++++++--------- drivers/thermal/samsung/exynos_tmu.h | 31 +++++++++++++++++++++++++++++ drivers/thermal/samsung/exynos_tmu_data.c | 6 ++++- 3 files changed, 52 insertions(+), 11 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 7f65fe0..05b95c6 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -142,13 +142,15 @@ static int exynos_tmu_initialize(struct platform_device *pdev) mutex_lock(&data->lock); clk_enable(data->clk); - status = readb(data->base + reg->tmu_status); - if (!status) { - ret = -EBUSY; - goto out; + if (TMU_SUPPORTS(pdata, READY_STATUS)) { + status = readb(data->base + reg->tmu_status); + if (!status) { + ret = -EBUSY; + goto out; + } } - if (data->soc == SOC_ARCH_EXYNOS) + if (TMU_SUPPORTS(pdata, TRIM_RELOAD)) __raw_writel(1, data->base + reg->triminfo_ctrl); /* Save trimming info in order to perform calibration */ @@ -287,7 +289,7 @@ static void exynos_tmu_control(struct platform_device *pdev, bool on) pdata->trigger_enable[2] << reg->inten_rise2_shift | pdata->trigger_enable[1] << reg->inten_rise1_shift | pdata->trigger_enable[0] << reg->inten_rise0_shift; - if (pdata->threshold_falling) + if (TMU_SUPPORTS(pdata, FALLING_TRIP)) interrupt_en |= interrupt_en << reg->inten_fall0_shift; } else { @@ -329,7 +331,7 @@ static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp) unsigned int val; int ret = -EINVAL; - if (data->soc == SOC_ARCH_EXYNOS4210) + if (!TMU_SUPPORTS(pdata, EMULATION)) goto out; if (temp && temp < MCELSIUS) @@ -343,9 +345,13 @@ static int exynos_tmu_set_emulation(void *drv_data, unsigned long temp) if (temp) { temp /= MCELSIUS; - val = (EXYNOS_EMUL_TIME << reg->emul_time_shift) | - (temp_to_code(data, temp) - << reg->emul_temp_shift) | EXYNOS_EMUL_ENABLE; + if (TMU_SUPPORTS(pdata, EMUL_TIME)) { + val &= ~(EXYNOS_EMUL_TIME_MASK << reg->emul_time_shift); + val |= (EXYNOS_EMUL_TIME << reg->emul_time_shift); + } + val &= ~(EXYNOS_EMUL_DATA_MASK << reg->emul_temp_shift); + val |= (temp_to_code(data, temp) << reg->emul_temp_shift) | + EXYNOS_EMUL_ENABLE; } else { val &= ~EXYNOS_EMUL_ENABLE; } diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h index 53fa702..ff8844f 100644 --- a/drivers/thermal/samsung/exynos_tmu.h +++ b/drivers/thermal/samsung/exynos_tmu.h @@ -43,6 +43,34 @@ enum soc_type { }; /** + * EXYNOS TMU supported features. + * TMU_SUPPORT_EMULATION - This features is used to set user defined + * temperature to the TMU controller. + * TMU_SUPPORT_MULTI_INST - This features denotes that the soc + * has many instances of TMU. + * TMU_SUPPORT_TRIM_RELOAD - This features shows that trimming can + * be reloaded. + * TMU_SUPPORT_FALLING_TRIP - This features shows that interrupt can + * be registered for falling trips also. + * TMU_SUPPORT_READY_STATUS - This feature tells that the TMU current + * state(active/idle) can be checked. + * TMU_SUPPORT_EMUL_TIME - This features allows to set next temp emulation + * sample time. + * TMU_SUPPORT_SHARED_MEMORY - This feature tells that the different TMU + * sensors shares some common registers. + * TMU_SUPPORT - macro to compare the above features with the supplied. + */ +#define TMU_SUPPORT_EMULATION BIT(0) +#define TMU_SUPPORT_MULTI_INST BIT(1) +#define TMU_SUPPORT_TRIM_RELOAD BIT(2) +#define TMU_SUPPORT_FALLING_TRIP BIT(3) +#define TMU_SUPPORT_READY_STATUS BIT(4) +#define TMU_SUPPORT_EMUL_TIME BIT(5) +#define TMU_SUPPORT_SHARED_MEMORY BIT(6) + +#define TMU_SUPPORTS(a, b) (a->features & TMU_SUPPORT_ ## b) + +/** * struct exynos_tmu_register - register descriptors to access registers and * bitfields. The register validity, offsets and bitfield values may vary * slightly across different exynos SOC's. @@ -222,6 +250,8 @@ struct exynos_tmu_registers { * applicable to only some of the trigger levels. * @registers: Pointer to structure containing all the TMU controller registers * and bitfields shifts and masks. + * @features: a bitfield value indicating the features supported in SOC like + * emulation, multi instance etc * * This structure is required for configuration of exynos_tmu driver. */ @@ -249,6 +279,7 @@ struct exynos_tmu_platform_data { struct freq_clip_table freq_tab[4]; unsigned int freq_tab_count; const struct exynos_tmu_registers *registers; + unsigned int features; }; /** diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index a5c25b4..2612b45 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -83,6 +83,7 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = { .freq_tab_count = 2, .type = SOC_ARCH_EXYNOS4210, .registers = &exynos4210_tmu_registers, + .features = TMU_SUPPORT_READY_STATUS, }, }, .tmu_count = 1, @@ -162,7 +163,10 @@ static const struct exynos_tmu_registers exynos5250_tmu_registers = { }, \ .freq_tab_count = 2, \ .type = SOC_ARCH_EXYNOS, \ - .registers = &exynos5250_tmu_registers, + .registers = &exynos5250_tmu_registers, \ + .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \ + TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \ + TMU_SUPPORT_EMUL_TIME) struct exynos_tmu_init_data const exynos5250_default_tmu_data = { .tmu_data = {