From: Peter Hung <hpeter@gmail.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linus.walleij@linaro.org, gnurou@gmail.com,
gregkh@linuxfoundation.org, paul.gortmaker@windriver.com,
lee.jones@linaro.org, jslaby@suse.com,
gnomes@lxorguk.ukuu.org.uk, peter_hong@fintek.com.tw
Cc: heikki.krogerus@linux.intel.com, peter@hurleysoftware.com,
soeren.grunewald@desy.de, udknight@gmail.com,
adam.lee@canonical.com, arnd@arndb.de, manabian@gmail.com,
scottwood@freescale.com, yamada.masahiro@socionext.com,
paul.burton@imgtec.com, mans@mansr.com, matthias.bgg@gmail.com,
ralf@linux-mips.org, linux-kernel@vger.kernel.org,
linux-gpio@vger.kernel.org, linux-serial@vger.kernel.org,
tom_tsai@fintek.com.tw,
Peter Hung <hpeter+linux_kernel@gmail.com>
Subject: Re: [PATCH V4 1/4] mfd: f81504-core: Add Fintek F81504/508/512 PCIE-to-UART/GPIO core support
Date: Wed, 2 Mar 2016 15:34:13 +0800 [thread overview]
Message-ID: <56D69775.7080309@gmail.com> (raw)
In-Reply-To: <1456225517.13244.41.camel@linux.intel.com>
Hi Andy,
Andy Shevchenko 於 2016/2/23 下午 07:05 寫道:
> On Tue, 2016-02-23 at 14:30 +0800, Peter Hung wrote:
>> +config MFD_FINTEK_F81504_CORE
>> + tristate "Fintek F81504/508/512 PCIE-to-UART/GPIO MFD
>> support"
>> + depends on PCI
>> + select MFD_CORE
>> + default SERIAL_8250
>
> SERIAL_8250_PCI ?
In my opinion, 8250_pci & f81504_core are independently drivers.
So I'll set the default to SERIAL_8250.
>> +static bool f81504_is_gpio(unsigned int idx, u8 gpio_en)
>> +{
>> + unsigned int i;
>> +
>> + /* Find every port to check is multi-function port */
>> + for (i = 0; i < ARRAY_SIZE(fintek_gpio_mapping); i++) {
>
>
>> + if (fintek_gpio_mapping[i] != idx || !(gpio_en &
>> BIT(i)))
>> + continue;
>> +
>> + /*
>> + * This port is multi-function and enabled as gpio
>> mode.
>> + * So we'll not configure it as serial port.
>> + */
>> + return true;
>
> Perhaps
>
> if (fintek_gpio_mapping[i] == idx && (gpio_en & BIT(i)))
> return true;
Your code is more simple and readable. I'll change it for V5
Thanks for your advices.
--
With Best Regards,
Peter Hung
next prev parent reply other threads:[~2016-03-02 7:34 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 6:29 [PATCH V4 0/4] Transform Fintek PCIE driver from 8250 to MFD Peter Hung
2016-02-23 6:30 ` [PATCH V4 1/4] mfd: f81504-core: Add Fintek F81504/508/512 PCIE-to-UART/GPIO core support Peter Hung
2016-02-23 11:05 ` Andy Shevchenko
2016-03-02 7:34 ` Peter Hung [this message]
2016-02-23 6:30 ` [PATCH V4 2/4] gpio: gpio-f81504: Add Fintek F81504/508/512 PCIE-to-UART/GPIO GPIOLIB support Peter Hung
2016-02-25 9:59 ` Linus Walleij
2016-02-23 6:30 ` [PATCH V4 3/4] 8250: 8250_f81504: Add Fintek F81504/508/512 PCIE-to-UART/GPIO UART support Peter Hung
2016-02-23 6:30 ` [PATCH V4 4/4] serial: 8250_pci: Remove Fintek F81504/508/512 UART driver Peter Hung
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