From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932224Ab3ENKBX (ORCPT ); Tue, 14 May 2013 06:01:23 -0400 Received: from mail-da0-f42.google.com ([209.85.210.42]:51223 "EHLO mail-da0-f42.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932281Ab3ENKBR (ORCPT ); Tue, 14 May 2013 06:01:17 -0400 From: Amit Daniel Kachhap To: linux-pm@vger.kernel.org Cc: Zhang Rui , linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, amit.kachhap@gmail.com, Kukjin Kim , Eduardo Valentin Subject: [PATCH V4 25/30] thermal: exynos: Add a compensation logic on swapped e-fuse values Date: Tue, 14 May 2013 15:28:55 +0530 Message-Id: <1368525540-15034-26-git-send-email-amit.daniel@samsung.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1368525540-15034-1-git-send-email-amit.daniel@samsung.com> References: <1368525540-15034-1-git-send-email-amit.daniel@samsung.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds compensation logic on swapped e-fuse values with boundary conditions. Currently, e-fused trim values for sensor0 is swapped with sensor2 so the logic in this patch is needed. sensor1 e-fused trim value is correct. Signed-off-by: Jungseok Lee Signed-off-by: Amit Daniel Kachhap --- drivers/thermal/samsung/exynos_tmu.c | 23 +++++++++++++++++++++-- drivers/thermal/samsung/exynos_tmu_data.h | 1 + 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 671061b..f32d275 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -137,7 +137,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev) struct exynos_tmu_data *data = platform_get_drvdata(pdev); struct exynos_tmu_platform_data *pdata = data->pdata; const struct exynos_tmu_registers *reg = pdata->registers; - unsigned int status, trim_info, con; + unsigned int status, trim_info = 0, con; unsigned int rising_threshold = 0, falling_threshold = 0; int ret = 0, threshold_code, i, trigger_levs = 0; @@ -156,7 +156,26 @@ static int exynos_tmu_initialize(struct platform_device *pdev) __raw_writel(1, data->base + reg->triminfo_ctrl); /* Save trimming info in order to perform calibration */ - trim_info = readl(data->base + reg->triminfo_data); + if (data->soc == SOC_ARCH_EXYNOS5440) { + /* + * For exynos5440 soc triminfo value is swapped between TMU0 and + * TMU2, so the below logic is needed. + */ + switch (data->id) { + case 0: + trim_info = readl(data->base + + EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data); + break; + case 1: + trim_info = readl(data->base + reg->triminfo_data); + break; + case 2: + trim_info = readl(data->base - + EXYNOS5440_EFUSE_SWAP_OFFSET + reg->triminfo_data); + } + } else { + trim_info = readl(data->base + reg->triminfo_data); + } data->temp_error1 = trim_info & EXYNOS_TMU_TEMP_MASK; data->temp_error2 = ((trim_info >> reg->triminfo_85_shift) & EXYNOS_TMU_TEMP_MASK); diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h index eb7250d..a1cc8ab 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.h +++ b/drivers/thermal/samsung/exynos_tmu_data.h @@ -127,6 +127,7 @@ #define EXYNOS5440_TMU_TH_RISE2_SHIFT 16 #define EXYNOS5440_TMU_TH_RISE3_SHIFT 24 #define EXYNOS5440_TMU_TH_RISE4_SHIFT 24 +#define EXYNOS5440_EFUSE_SWAP_OFFSET 8 #if defined(CONFIG_CPU_EXYNOS4210) extern struct exynos_tmu_platform_data const exynos4210_default_tmu_data; -- 1.7.1