Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932577AbbLCJCX (ORCPT ); Thu, 3 Dec 2015 04:02:23 -0500 Received: from mail-pa0-f68.google.com ([209.85.220.68]:34723 "EHLO mail-pa0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932090AbbLCJCT (ORCPT ); Thu, 3 Dec 2015 04:02:19 -0500 From: Caesar Wang To: Eduardo Valentin Cc: huangtao@rock-chips.com, Heiko Stuebner , dmitry.torokhov@gmail.com, dianders@chromium.org, linux-rockchip@lists.infradead.org, computersforpeace@gmail.com, Dan Carpenter , Caesar Wang , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Zhang Rui , linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 4/5] thermal: rockchip: Support the RK3228 SoCs in thermal driver Date: Thu, 3 Dec 2015 16:48:42 +0800 Message-Id: <1449132523-18817-5-git-send-email-wxt@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1449132523-18817-1-git-send-email-wxt@rock-chips.com> References: <1449132523-18817-1-git-send-email-wxt@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3863 Lines: 140 The RK3228 SoCs has one Temperature Sensor, channel 0 is for CPU. Signed-off-by: Caesar Wang --- Changes in v3: None Changes in v2: None Changes in v1: None drivers/thermal/rockchip_thermal.c | 81 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c index 611de00..95415ac 100644 --- a/drivers/thermal/rockchip_thermal.c +++ b/drivers/thermal/rockchip_thermal.c @@ -154,6 +154,7 @@ struct rockchip_thermal_data { #define TSADCV2_SHUT_2GPIO_SRC_EN(chn) BIT(4 + (chn)) #define TSADCV2_SHUT_2CRU_SRC_EN(chn) BIT(8 + (chn)) +#define TSADCV1_INT_PD_CLEAR_MASK ~BIT(16) #define TSADCV2_INT_PD_CLEAR_MASK ~BIT(8) #define TSADCV2_DATA_MASK 0xfff @@ -169,6 +170,51 @@ struct tsadc_table { int temp; }; +/** + * Note: + * Code to Temperature mapping of the Temperature sensor is a piece wise linear + * curve.Any temperature, code faling between to 2 give temperatures can be + * linearly interpolated. + * Code to Temperature mapping should be updated based on sillcon results. + */ +static const struct tsadc_table v1_code_table[] = { + {TSADCV3_DATA_MASK, -40000}, + {436, -40000}, + {431, -35000}, + {426, -30000}, + {421, -25000}, + {416, -20000}, + {411, -15000}, + {406, -10000}, + {401, -5000}, + {395, 0}, + {390, 5000}, + {385, 10000}, + {380, 15000}, + {375, 20000}, + {370, 25000}, + {364, 30000}, + {359, 35000}, + {354, 40000}, + {349, 45000}, + {343, 50000}, + {338, 55000}, + {333, 60000}, + {328, 65000}, + {322, 70000}, + {317, 75000}, + {312, 80000}, + {307, 85000}, + {301, 90000}, + {296, 95000}, + {291, 100000}, + {286, 105000}, + {280, 110000}, + {275, 115000}, + {270, 120000}, + {264, 125000}, +}; + static const struct tsadc_table v2_code_table[] = { {TSADCV2_DATA_MASK, -40000}, {3800, -40000}, @@ -369,6 +415,14 @@ static void rk_tsadcv2_initialize(void __iomem *regs, regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE); } +static void rk_tsadcv1_irq_ack(void __iomem *regs) +{ + u32 val; + + val = readl_relaxed(regs + TSADCV2_INT_PD); + writel_relaxed(val & TSADCV1_INT_PD_CLEAR_MASK, regs + TSADCV2_INT_PD); +} + static void rk_tsadcv2_irq_ack(void __iomem *regs) { u32 val; @@ -430,6 +484,29 @@ static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs, writel_relaxed(val, regs + TSADCV2_INT_EN); } +static const struct rockchip_tsadc_chip rk3228_tsadc_data = { + .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */ + .chn_num = 1, /* one channel for tsadc */ + + .tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */ + .tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */ + .tshut_temp = 95000, + + .initialize = rk_tsadcv2_initialize, + .irq_ack = rk_tsadcv1_irq_ack, + .control = rk_tsadcv2_control, + .get_temp = rk_tsadcv2_get_temp, + .set_tshut_temp = rk_tsadcv2_tshut_temp, + .set_tshut_mode = rk_tsadcv2_tshut_mode, + + .table = { + .id = v1_code_table, + .length = ARRAY_SIZE(v1_code_table), + .data_mask = TSADCV3_DATA_MASK, + .mode = ADC_DECREMENT, + }, +}; + static const struct rockchip_tsadc_chip rk3288_tsadc_data = { .chn_id[SENSOR_CPU] = 1, /* cpu sensor is channel 1 */ .chn_id[SENSOR_GPU] = 2, /* gpu sensor is channel 2 */ @@ -480,6 +557,10 @@ static const struct rockchip_tsadc_chip rk3368_tsadc_data = { static const struct of_device_id of_rockchip_thermal_match[] = { { + .compatible = "rockchip,rk3228-tsadc", + .data = (void *)&rk3228_tsadc_data, + }, + { .compatible = "rockchip,rk3288-tsadc", .data = (void *)&rk3288_tsadc_data, }, -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/