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Message-ID: <CAHp75Vd+UnqOigOV9aDrpdczFD2R+gm1iFhUe-C6vc5U-x3e1g@mail.gmail.com>
Date: Fri, 6 Nov 2015 21:39:29 +0200
From: Andy Shevchenko <andy.shevchenko@...il.com>
To: Caesar Wang <wxt@...k-chips.com>
Cc: Heiko Stuebner <heiko@...ech.de>,
Eduardo Valentin <edubezval@...il.com>,
linux-rockchip@...ts.infradead.org,
"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
Zhang Rui <rui.zhang@...el.com>,
linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v2 6/9] thermal: rockchip: Support the RK3368 SoCs in
thermal drivers
On Thu, Nov 5, 2015 at 7:18 AM, Caesar Wang <wxt@...k-chips.com> wrote:
> The RK3368 SoCs support to 2 channel TS-ADC, the temperature criteria
> of each channel can be configurable.
>
> The system has two Temperature Sensors, channel 0 is for CPU,
> and channel 1 is for GPU.
>
> Signed-off-by: Caesar Wang <wxt@...k-chips.com>
> ---
>
> Changes in v2:
> - remove some unused, completed on other patchs.
>
> Changes in v1: None
>
> drivers/thermal/rockchip_thermal.c | 72 ++++++++++++++++++++++++++++++++++++++
> 1 file changed, 72 insertions(+)
>
> diff --git a/drivers/thermal/rockchip_thermal.c b/drivers/thermal/rockchip_thermal.c
> index 9df027f..47a8873 100644
> --- a/drivers/thermal/rockchip_thermal.c
> +++ b/drivers/thermal/rockchip_thermal.c
> @@ -1,6 +1,9 @@
> /*
> * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
> *
> + * Copyright (c) 2015, Fuzhou Rockchip Electronics Co., Ltd
> + * Caesar Wang <wxt@...k-chips.com>
> + *
> * This program is free software; you can redistribute it and/or modify it
> * under the terms and conditions of the GNU General Public License,
> * version 2, as published by the Free Software Foundation.
> @@ -152,6 +155,8 @@ struct rockchip_thermal_data {
> #define TSADCV2_INT_PD_CLEAR_MASK ~BIT(8)
>
> #define TSADCV2_DATA_MASK 0xfff
> +#define TSADCV3_DATA_MASK 0x3ff
> +
> #define TSADCV2_HIGHT_INT_DEBOUNCE_COUNT 4
> #define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT 4
> #define TSADCV2_AUTO_PERIOD_TIME 250 /* msec */
> @@ -200,6 +205,45 @@ static const struct tsadc_table v2_code_table[] = {
> {3421, 125000},
> };
>
> +static const struct tsadc_table v3_code_table[] = {
> + {0, -40000},
> + {106, -40000},
> + {108, -35000},
> + {110, -30000},
> + {112, -25000},
> + {114, -20000},
> + {116, -15000},
> + {118, -10000},
> + {120, -5000},
> + {122, 0},
> + {124, 5000},
> + {126, 10000},
> + {128, 15000},
> + {130, 20000},
> + {132, 25000},
> + {134, 30000},
> + {136, 35000},
> + {138, 40000},
> + {140, 45000},
> + {142, 50000},
> + {144, 55000},
> + {146, 60000},
> + {148, 65000},
> + {150, 70000},
> + {152, 75000},
> + {154, 80000},
> + {156, 85000},
> + {158, 90000},
> + {160, 95000},
> + {162, 100000},
> + {163, 105000},
> + {165, 110000},
> + {167, 115000},
> + {169, 120000},
> + {171, 125000},
> + {TSADCV3_DATA_MASK, 125000},
Why not function which returns one value based on the other?
x < 106: -40000
161 >= x >= 106: -40000 + 5000 * (x - 106) / 2
171 >= x >= 162: 100000 + 5000 * (x - 162)
x > 171 = 125000
> +};
> +
> static u32 rk_tsadcv2_temp_to_code(struct chip_tsadc_table table,
> long temp)
> {
> @@ -408,11 +452,39 @@ static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
> },
> };
>
> +static const struct rockchip_tsadc_chip rk3368_tsadc_data = {
> + .chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
> + .chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
> + .chn_num = 2, /* two channels 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_tsadcv2_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 = v3_code_table,
> + .length = ARRAY_SIZE(v3_code_table),
> + .data_mask = TSADCV3_DATA_MASK,
> + .flag = ADC_DECREMENT,
> + },
> +};
> +
> static const struct of_device_id of_rockchip_thermal_match[] = {
> {
> .compatible = "rockchip,rk3288-tsadc",
> .data = (void *)&rk3288_tsadc_data,
> },
> + {
> + .compatible = "rockchip,rk3368-tsadc",
> + .data = (void *)&rk3368_tsadc_data,
> + },
> { /* end */ },
> };
> MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match);
> --
> 1.9.1
>
> --
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--
With Best Regards,
Andy Shevchenko
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