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Date: Fri, 17 Jun 2016 09:01:59 +0100
From: Lee Jones <lee.jones@...aro.org>
To: Bin Gao <bin.gao@...ux.intel.com>
Cc: Zhang Rui <rui.zhang@...el.com>,
Eduardo Valentin <edubezval@...il.com>,
linux-kernel@...r.kernel.org, ysiyer <yegnesh.s.iyer@...el.com>,
Ajay Thomas <ajay.thomas.david.rajamanickam@...el.com>,
Bin Gao <bin.gao@...el.com>, broonie@...nel.org
Subject: Re: [PATCH v2] mfd: intel_soc_pmic_bxtwc: Add Intel BXT WhiskeyCove
PMIC ADC thermal channel-zone mapping
On Thu, 16 Jun 2016, Bin Gao wrote:
> This patch adds the mapping of PMIC ADC channel to thermal zone.
> This mapping is used in the pmic thermal driver to notify the thermal
> zone with the pmic adc channel alert interrupts.
> This patch also adds three new data structures to
> include/linux/mfd/intel_soc_pmic.h: struct trip_config_map{},
> struct thermal_irq_map {} and struct pmic_thermal_data {} which are
> required by changes we did on intel_soc_pmic_bxtwc.c.
>
> Signed-off-by: Yegnesh S Iyer <yegnesh.s.iyer@...el.com>
> Signed-off-by: Bin Gao <bin.gao@...el.com>
> ---
> Changes in v2:
> - Fixed subject line.
> - Combined two patches into one.
> drivers/mfd/intel_soc_pmic_bxtwc.c | 109 +++++++++++++++++++++++++++++++++++++
> include/linux/mfd/intel_soc_pmic.h | 21 +++++++
> 2 files changed, 130 insertions(+)
>
> diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c
> index b942876..ec50788 100644
> --- a/drivers/mfd/intel_soc_pmic_bxtwc.c
> +++ b/drivers/mfd/intel_soc_pmic_bxtwc.c
> @@ -58,6 +58,10 @@
> #define BXTWC_MGPIO1IRQ 0x4E1A
> #define BXTWC_MCRITIRQ 0x4E1B
>
> +#define BXTWC_STHRM0IRQ 0x4F19
> +#define BXTWC_STHRM1IRQ 0x4F1A
> +#define BXTWC_STHRM2IRQ 0x4F1B
> +
> /* Whiskey Cove PMIC share same ACPI ID between different platforms */
> #define BROXTON_PMIC_WC_HRV 4
>
> @@ -116,6 +120,109 @@ static const struct regmap_irq bxtwc_regmap_irqs_level2[] = {
> REGMAP_IRQ_REG(BXTWC_CRIT_IRQ, 9, 0x03),
> };
>
> +static struct trip_config_map str0_trip_config[] = {
> + {
> + .irq_reg = BXTWC_THRM0IRQ,
> + .irq_mask = 0x01,
> + .irq_en = BXTWC_MTHRM0IRQ,
> + .irq_en_mask = 0x01,
> + .evt_stat = BXTWC_STHRM0IRQ,
> + .evt_mask = 0x01,
> + .trip_num = 0
> + },
> + {
> + .irq_reg = BXTWC_THRM0IRQ,
> + .irq_mask = 0x10,
> + .irq_en = BXTWC_MTHRM0IRQ,
> + .irq_en_mask = 0x10,
> + .evt_stat = BXTWC_STHRM0IRQ,
> + .evt_mask = 0x10,
> + .trip_num = 1
> + }
> +};
> +
> +static struct trip_config_map str1_trip_config[] = {
> + {
> + .irq_reg = BXTWC_THRM0IRQ,
> + .irq_mask = 0x02,
> + .irq_en = BXTWC_MTHRM0IRQ,
> + .irq_en_mask = 0x02,
> + .evt_stat = BXTWC_STHRM0IRQ,
> + .evt_mask = 0x02,
> + .trip_num = 0
> + },
> + {
> + .irq_reg = BXTWC_THRM0IRQ,
> + .irq_mask = 0x20,
> + .irq_en = BXTWC_MTHRM0IRQ,
> + .irq_en_mask = 0x20,
> + .evt_stat = BXTWC_STHRM0IRQ,
> + .evt_mask = 0x20,
> + .trip_num = 1
> + },
> +};
> +
> +static struct trip_config_map str2_trip_config[] = {
> + {
> + .irq_reg = BXTWC_THRM0IRQ,
> + .irq_mask = 0x04,
> + .irq_en = BXTWC_MTHRM0IRQ,
> + .irq_en_mask = 0x04,
> + .evt_stat = BXTWC_STHRM0IRQ,
> + .evt_mask = 0x04,
> + .trip_num = 0
> + },
> + {
> + .irq_reg = BXTWC_THRM0IRQ,
> + .irq_mask = 0x40,
> + .irq_en = BXTWC_MTHRM0IRQ,
> + .irq_en_mask = 0x40,
> + .evt_stat = BXTWC_STHRM0IRQ,
> + .evt_mask = 0x40,
> + .trip_num = 1
> + },
> +};
> +
> +static struct trip_config_map str3_trip_config[] = {
> + {
> + .irq_reg = BXTWC_THRM2IRQ,
> + .irq_mask = 0x10,
> + .irq_en = BXTWC_MTHRM2IRQ,
> + .irq_en_mask = 0x10,
> + .evt_stat = BXTWC_STHRM2IRQ,
> + .evt_mask = 0x10,
> + .trip_num = 0
> + },
> +};
This looks like a register map to me.
Can you use the regmap framework instead?
> +static struct thermal_irq_map bxtwc_thermal_irq_map[] = {
> + {
> + .handle = "STR0",
> + .trip_config = str0_trip_config,
> + .num_trips = ARRAY_SIZE(str0_trip_config),
> + },
> + {
> + .handle = "STR1",
> + .trip_config = str1_trip_config,
> + .num_trips = ARRAY_SIZE(str1_trip_config),
> + },
> + {
> + .handle = "STR2",
> + .trip_config = str2_trip_config,
> + .num_trips = ARRAY_SIZE(str2_trip_config),
> + },
> + {
> + .handle = "STR3",
> + .trip_config = str3_trip_config,
> + .num_trips = ARRAY_SIZE(str3_trip_config),
> + },
> +};
> +
> +static struct pmic_thermal_data bxtwc_thermal_data = {
> + .maps = bxtwc_thermal_irq_map,
> + .num_maps = ARRAY_SIZE(bxtwc_thermal_irq_map),
> +};
> +
> static struct regmap_irq_chip bxtwc_regmap_irq_chip = {
> .name = "bxtwc_irq_chip",
> .status_base = BXTWC_IRQLVL1,
> @@ -168,6 +275,8 @@ static struct mfd_cell bxt_wc_dev[] = {
> .name = "bxt_wcove_thermal",
> .num_resources = ARRAY_SIZE(thermal_resources),
> .resources = thermal_resources,
> + .platform_data = &bxtwc_thermal_data,
> + .pdata_size = sizeof(bxtwc_thermal_data),
> },
> {
> .name = "bxt_wcove_ext_charger",
> diff --git a/include/linux/mfd/intel_soc_pmic.h b/include/linux/mfd/intel_soc_pmic.h
> index cf619db..7df4302 100644
> --- a/include/linux/mfd/intel_soc_pmic.h
> +++ b/include/linux/mfd/intel_soc_pmic.h
> @@ -21,6 +21,27 @@
>
> #include <linux/regmap.h>
>
> +struct trip_config_map {
> + u16 irq_reg;
> + u16 irq_en;
> + u16 evt_stat;
> + u8 irq_mask;
> + u8 irq_en_mask;
> + u8 evt_mask;
> + u8 trip_num;
> +};
> +
> +struct thermal_irq_map {
> + char handle[20];
> + int num_trips;
> + struct trip_config_map *trip_config;
> +};
> +
> +struct pmic_thermal_data {
> + struct thermal_irq_map *maps;
> + int num_maps;
> +};
> +
> struct intel_soc_pmic {
> int irq;
> struct regmap *regmap;
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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