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Date:   Mon, 24 Jun 2019 09:15:01 +0100
Message-ID: <86d0j3pfga.wl-marc.zyngier@arm.com>
From:   Marc Zyngier <marc.zyngier@arm.com>
To:     Sowjanya Komatineni <skomatineni@nvidia.com>
Cc:     <thierry.reding@gmail.com>, <jonathanh@nvidia.com>,
        <tglx@linutronix.de>, <jason@lakedaemon.net>,
        <linus.walleij@linaro.org>, <stefan@agner.ch>,
        <mark.rutland@arm.com>, <pdeschrijver@nvidia.com>,
        <pgaikwad@nvidia.com>, <sboyd@kernel.org>,
        <linux-clk@vger.kernel.org>, <linux-gpio@vger.kernel.org>,
        <jckuo@nvidia.com>, <josephl@nvidia.com>, <talho@nvidia.com>,
        <linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <mperttunen@nvidia.com>, <spatra@nvidia.com>, <robh+dt@kernel.org>,
        <digetx@gmail.com>, <devicetree@vger.kernel.org>
Subject: Re: [PATCH V4 13/18] soc/tegra: pmc: allow support for more tegra wake
In-Reply-To: <1561345379-2429-14-git-send-email-skomatineni@nvidia.com>
References: <1561345379-2429-1-git-send-email-skomatineni@nvidia.com>
        <1561345379-2429-14-git-send-email-skomatineni@nvidia.com>
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On Mon, 24 Jun 2019 04:02:54 +0100,
Sowjanya Komatineni <skomatineni@nvidia.com> wrote:
> 
> This patch allows to create separate irq_set_wake and irq_set_type
> implementations for different tegra designs PMC that has different
> wake models which require difference wake registers and different
> programming sequence.
> 
> AOWAKE model support is available for Tegra186 and Tegra194 only
> and it resides within PMC and supports tiered wake architecture.
> 
> Tegra210 and prior tegra designs uses PMC directly to receive wake
> events and coordinate the wake sequence.
> 
> Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
> ---
>  drivers/soc/tegra/pmc.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
> index edd4fe06810f..e87f29a35fcf 100644
> --- a/drivers/soc/tegra/pmc.c
> +++ b/drivers/soc/tegra/pmc.c
> @@ -226,6 +226,8 @@ struct tegra_pmc_soc {
>  	void (*setup_irq_polarity)(struct tegra_pmc *pmc,
>  				   struct device_node *np,
>  				   bool invert);
> +	int (*irq_set_wake)(struct irq_data *data, unsigned int on);
> +	int (*irq_set_type)(struct irq_data *data, unsigned int type);
>  
>  	const char * const *reset_sources;
>  	unsigned int num_reset_sources;
> @@ -1919,7 +1921,7 @@ static const struct irq_domain_ops tegra_pmc_irq_domain_ops = {
>  	.alloc = tegra_pmc_irq_alloc,
>  };
>  
> -static int tegra_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
> +static int tegra186_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
>  {
>  	struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
>  	unsigned int offset, bit;
> @@ -1951,7 +1953,7 @@ static int tegra_pmc_irq_set_wake(struct irq_data *data, unsigned int on)
>  	return 0;
>  }
>  
> -static int tegra_pmc_irq_set_type(struct irq_data *data, unsigned int type)
> +static int tegra186_pmc_irq_set_type(struct irq_data *data, unsigned int type)
>  {
>  	struct tegra_pmc *pmc = irq_data_get_irq_chip_data(data);
>  	u32 value;
> @@ -2005,8 +2007,10 @@ static int tegra_pmc_irq_init(struct tegra_pmc *pmc)
>  	pmc->irq.irq_unmask = irq_chip_unmask_parent;
>  	pmc->irq.irq_eoi = irq_chip_eoi_parent;
>  	pmc->irq.irq_set_affinity = irq_chip_set_affinity_parent;
> -	pmc->irq.irq_set_type = tegra_pmc_irq_set_type;
> -	pmc->irq.irq_set_wake = tegra_pmc_irq_set_wake;
> +	if (pmc->soc->irq_set_type)
> +		pmc->irq.irq_set_type = pmc->soc->irq_set_type;
> +	if (pmc->soc->irq_set_wake)
> +		pmc->irq.irq_set_wake = pmc->soc->irq_set_wake;

I already commented on how superfluous these 'if ()' where. If you
disagree, please let me know why.

Thanks,

	M.

-- 
Jazz is not dead, it just smells funny.