From: Daniel Baluta <daniel.baluta@nxp.com>
To: Anson Huang <anson.huang@nxp.com>,
Aisheng Dong <aisheng.dong@nxp.com>,
"festevam@gmail.com" <festevam@gmail.com>,
"shawnguo@kernel.org" <shawnguo@kernel.org>,
"stefan@agner.ch" <stefan@agner.ch>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"linus.walleij@linaro.org" <linus.walleij@linaro.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Cc: dl-linux-imx <linux-imx@nxp.com>
Subject: Re: [PATCH 1/2] pinctrl: imx: Support building SCU pinctrl driver as module
Date: Fri, 17 Jul 2020 11:39:53 +0300 [thread overview]
Message-ID: <c27109aa-280f-db0d-980b-fbd735bab0a6@nxp.com> (raw)
In-Reply-To: <DB3PR0402MB3916AAEE01257A7F9A25A657F57F0@DB3PR0402MB3916.eurprd04.prod.outlook.com>
On 7/17/20 2:44 AM, Anson Huang wrote:
> Hi, Daniel
>
>
>> Subject: Re: [PATCH 1/2] pinctrl: imx: Support building SCU pinctrl driver as
>> module
>>
>> On 7/16/20 6:21 PM, Anson Huang wrote:
>>> Hi, Daniel
>>>
>>>
>>>> Subject: Re: [PATCH 1/2] pinctrl: imx: Support building SCU pinctrl
>>>> driver as module
>>>>
>>>> Hi Anson,
>>>>
>>>> Few comments inline:
>>>>
>>>> On 7/16/20 6:06 PM, Anson Huang wrote:
>>>>> To support building i.MX SCU pinctrl driver as module, below things
>>>>> need to
>>>> be changed:
>>>>> - Export SCU related functions and use "IS_ENABLED" instead of
>>>>> "ifdef" to support SCU pinctrl driver user and itself to be
>>>>> built as module;
>>>>> - Use function callbacks for SCU related functions in pinctrl-imx.c
>>>>> in order to support the scenario of PINCTRL_IMX is built in
>>>>> while PINCTRL_IMX_SCU is built as module;
>>>>> - All drivers using SCU pinctrl driver need to initialize the
>>>>> SCU related function callback;
>>>>> - Change PINCTR_IMX_SCU to tristate;
>>>>> - Add module author, description and license.
>>>>>
>>>>> With above changes, i.MX SCU pinctrl driver can be built as module.
>>>> There are a lot of changes here. I think it would be better to try to
>>>> split them
>>>>
>>>> per functionality. One functional change per patch.
>>> Actually, I ever tried to split them, but the function will be broken.
>>> All the changes are just to support the module build. If split them,
>>> the bisect will have pinctrl build or function broken.
>> Hi Anson,
>>
>>
>> I see your point and I know that this is a very hard task to get it right from
>>
>> the first patches.
>>
>> But let me suggest at least that:
>>
>> - changes in drivers/pinctrl/freescale/pinctrl-imx.c (include file and
>> MODULE_ macros should go to a separate patch).
> You meant in patch #2, the changes in Kconfig and the changes in .c file should
> be split to 2 patches?
No. I mean look at path #1.
The section above should be placed in a separate patch.
static const struct of_device_id imx8qxp_pinctrl_of_match[] = {
diff --git a/drivers/pinctrl/freescale/pinctrl-scu.c b/drivers/pinctrl/freescale/pinctrl-scu.c
index 9df45d3..59b5f8a 100644
--- a/drivers/pinctrl/freescale/pinctrl-scu.c
+++ b/drivers/pinctrl/freescale/pinctrl-scu.c
@@ -7,6 +7,7 @@
#include <linux/err.h>
#include <linux/firmware/imx/sci.h>
+#include <linux/module.h>
#include <linux/of_address.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/platform_device.h>
@@ -123,3 +124,7 @@ void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
pin_scu->mux_mode, pin_scu->config);
}
EXPORT_SYMBOL_GPL(imx_pinctrl_parse_pin_scu);
+
+MODULE_AUTHOR("Dong Aisheng<aisheng.dong@nxp.com>");
+MODULE_DESCRIPTION("NXP i.MX SCU common pinctrl driver");
+MODULE_LICENSE("GPL v2");
This can be in a separate patch.
next prev parent reply other threads:[~2020-07-17 8:40 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-16 15:06 [PATCH 1/2] pinctrl: imx: Support building SCU pinctrl driver as module Anson Huang
2020-07-16 15:06 ` [PATCH 2/2] pinctrl: imx: Support building i.MX " Anson Huang
2020-09-07 8:33 ` Aisheng Dong
2020-09-07 8:35 ` Anson Huang
2020-07-16 15:14 ` [PATCH 1/2] pinctrl: imx: Support building SCU " Daniel Baluta
2020-07-16 15:21 ` Anson Huang
2020-07-16 15:58 ` Daniel Baluta
2020-07-16 23:44 ` Anson Huang
2020-07-17 8:39 ` Daniel Baluta [this message]
2020-07-17 9:22 ` Anson Huang
2020-07-17 9:45 ` Arnd Bergmann
2020-07-17 9:53 ` Anson Huang
2020-09-07 8:17 ` Aisheng Dong
2020-09-01 2:15 ` Anson Huang
2020-09-07 8:27 ` Aisheng Dong
2020-09-07 8:34 ` Anson Huang
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