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Date: Thu, 3 Oct 2013 18:01:40 -0400
From: Eduardo Valentin <eduardo.valentin@...com>
To: Lukasz Majewski <l.majewski@...sung.com>
CC: Zhang Rui <rui.zhang@...el.com>,
Eduardo Valentin <eduardo.valentin@...com>,
Amit Daniel Kachhap <amit.daniel@...sung.com>,
"Rafael J. Wysocki" <rjw@...k.pl>,
Linux PM list <linux-pm@...r.kernel.org>,
Jonghwa Lee <jonghwa3.lee@...sung.com>,
Lukasz Majewski <l.majewski@...ess.pl>,
linux-kernel <linux-kernel@...r.kernel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
Tomasz Figa <t.figa@...sung.com>,
Myungjoo Ham <myungjoo.ham@...sung.com>,
<devicetree@...r.kernel.org>, <linux-samsung-soc@...r.kernel.org>
Subject: Re: [PATCH 2/6] thermal: exynos: Provide separate TMU data for Exynos4412
Lukasz,
Just minor comments.
On 24-09-2013 04:08, Lukasz Majewski wrote:
> Up till now Exynos5250 and Exynos4412 had the same definitions for TMU
> data. Following commit changes that, by introducing separate
> exynos4412_default_tmu_data structure.
>
> Since Exynos4412 was chronologically first, the corresponding name for
> TMU registers and default data was renamed.
>
> Additionally, new SOC_ARCH_EXYNOS4412 type has been defined.
It is not clear the objective of the patch itself. Was it just to make
the code more readable or are you fixing something?
>
> Signed-off-by: Lukasz Majewski <l.majewski@...sung.com>
> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> Reviewed-by: Tomasz Figa <t.figa@...sung.com>
> ---
> drivers/thermal/samsung/exynos_tmu.c | 7 ++++---
> drivers/thermal/samsung/exynos_tmu.h | 1 +
> drivers/thermal/samsung/exynos_tmu_data.c | 26 ++++++++++++++++++++------
> drivers/thermal/samsung/exynos_tmu_data.h | 9 ++++++++-
> 4 files changed, 33 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c
> index b43afda..a858cc4 100644
> --- a/drivers/thermal/samsung/exynos_tmu.c
> +++ b/drivers/thermal/samsung/exynos_tmu.c
> @@ -488,7 +488,7 @@ static const struct of_device_id exynos_tmu_match[] = {
> },
> {
> .compatible = "samsung,exynos4412-tmu",
> - .data = (void *)EXYNOS5250_TMU_DRV_DATA,
> + .data = (void *)EXYNOS4412_TMU_DRV_DATA,
> },
> {
> .compatible = "samsung,exynos5250-tmu",
> @@ -630,8 +630,9 @@ static int exynos_tmu_probe(struct platform_device *pdev)
> return ret;
>
> if (pdata->type == SOC_ARCH_EXYNOS ||
> - pdata->type == SOC_ARCH_EXYNOS4210 ||
> - pdata->type == SOC_ARCH_EXYNOS5440)
> + pdata->type == SOC_ARCH_EXYNOS4210 ||
> + pdata->type == SOC_ARCH_EXYNOS4412 ||
> + pdata->type == SOC_ARCH_EXYNOS5440)
> data->soc = pdata->type;
> else {
> ret = -EINVAL;
> diff --git a/drivers/thermal/samsung/exynos_tmu.h b/drivers/thermal/samsung/exynos_tmu.h
> index b364c9e..db37df0 100644
> --- a/drivers/thermal/samsung/exynos_tmu.h
> +++ b/drivers/thermal/samsung/exynos_tmu.h
> @@ -41,6 +41,7 @@ enum calibration_mode {
>
> enum soc_type {
> SOC_ARCH_EXYNOS4210 = 1,
> + SOC_ARCH_EXYNOS4412,
> SOC_ARCH_EXYNOS,
> SOC_ARCH_EXYNOS5440,
> };
I believe the above enum needs some documentation. SOC_ARCH_EXYNOS seams
to be a bit confusing.
> diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c
> index 9002499..bd08093 100644
> --- a/drivers/thermal/samsung/exynos_tmu_data.c
> +++ b/drivers/thermal/samsung/exynos_tmu_data.c
> @@ -90,8 +90,8 @@ struct exynos_tmu_init_data const exynos4210_default_tmu_data = {
> };
> #endif
>
> -#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412)
> -static const struct exynos_tmu_registers exynos5250_tmu_registers = {
> +#if defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
> +static const struct exynos_tmu_registers exynos4412_tmu_registers = {
> .triminfo_data = EXYNOS_TMU_REG_TRIMINFO,
> .triminfo_25_shift = EXYNOS_TRIMINFO_25_SHIFT,
> .triminfo_85_shift = EXYNOS_TRIMINFO_85_SHIFT,
> @@ -128,7 +128,7 @@ static const struct exynos_tmu_registers exynos5250_tmu_registers = {
> .emul_time_mask = EXYNOS_EMUL_TIME_MASK,
> };
>
> -#define EXYNOS5250_TMU_DATA \
> +#define EXYNOS4412_TMU_DATA \
> .threshold_falling = 10, \
> .trigger_levels[0] = 85, \
> .trigger_levels[1] = 103, \
> @@ -162,15 +162,29 @@ static const struct exynos_tmu_registers exynos5250_tmu_registers = {
> .temp_level = 103, \
> }, \
> .freq_tab_count = 2, \
> - .type = SOC_ARCH_EXYNOS, \
> - .registers = &exynos5250_tmu_registers, \
> + .registers = &exynos4412_tmu_registers, \
> .features = (TMU_SUPPORT_EMULATION | TMU_SUPPORT_TRIM_RELOAD | \
> TMU_SUPPORT_FALLING_TRIP | TMU_SUPPORT_READY_STATUS | \
> TMU_SUPPORT_EMUL_TIME)
> +#endif
>
> +#if defined(CONFIG_SOC_EXYNOS4412)
> +struct exynos_tmu_init_data const exynos4412_default_tmu_data = {
> + .tmu_data = {
> + { EXYNOS4412_TMU_DATA,
> + .type = SOC_ARCH_EXYNOS4412,
> + },
> + },
> + .tmu_count = 1,
> +};
> +#endif
> +
> +#if defined(CONFIG_SOC_EXYNOS5250)
> struct exynos_tmu_init_data const exynos5250_default_tmu_data = {
> .tmu_data = {
> - { EXYNOS5250_TMU_DATA },
> + { EXYNOS4412_TMU_DATA,
> + .type = SOC_ARCH_EXYNOS,
> + },
Please add a comment on this initialization, specially because we start
to mix macros with inline initialization. Starts to be hard to follow.
Besides, I believe
+ {
+ EXYNOS4412_TMU_DATA,
+ .type = SOC_ARCH_EXYNOS,
+ },
is a much more common style.
> },
> .tmu_count = 1,
> };
> diff --git a/drivers/thermal/samsung/exynos_tmu_data.h b/drivers/thermal/samsung/exynos_tmu_data.h
> index dc7feb5..b130b1e 100644
> --- a/drivers/thermal/samsung/exynos_tmu_data.h
> +++ b/drivers/thermal/samsung/exynos_tmu_data.h
> @@ -138,7 +138,14 @@ extern struct exynos_tmu_init_data const exynos4210_default_tmu_data;
> #define EXYNOS4210_TMU_DRV_DATA (NULL)
> #endif
>
> -#if (defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412))
> +#if defined(CONFIG_SOC_EXYNOS4412)
> +extern struct exynos_tmu_init_data const exynos4412_default_tmu_data;
> +#define EXYNOS4412_TMU_DRV_DATA (&exynos4412_default_tmu_data)
> +#else
> +#define EXYNOS4412_TMU_DRV_DATA (NULL)
> +#endif
> +
> +#if defined(CONFIG_SOC_EXYNOS5250)
> extern struct exynos_tmu_init_data const exynos5250_default_tmu_data;
> #define EXYNOS5250_TMU_DRV_DATA (&exynos5250_default_tmu_data)
> #else
>
--
You have got to be excited about what you are doing. (L. Lamport)
Eduardo Valentin
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