From: Tony Lindgren <tony@atomide.com>
To: Andrew de Quincey <adq_dvb@lidskialf.net>
Cc: linux-omap@vger.kernel.org, ladis@linux-mips.org
Subject: Re: Tracking N770 breakage
Date: Mon, 1 Jun 2009 16:18:39 -0700 [thread overview]
Message-ID: <20090601231839.GD22956@atomide.com> (raw)
In-Reply-To: <20090523142542.10985fjvcwu3k9s0@lidskialf.net>
* Andrew de Quincey <adq_dvb@lidskialf.net> [090523 06:25]:
<snip snip>
> Ok, I spent some time looking for the magic code in
> drivers/base/platform.c that would mean you could use a device
> registered with register_platform_device() with a driver which had been
> registered with just driver_register().
>
> As it turns out, there is no magic code: it appears you must always use
> register_platform_driver() for platform_devices (because the
> drivers/base/platform.c code expects to be able to cast things
> internally to a struct platform_driver, which is NOT the case when using
> driver_register())
>
> Attached is v1 of a patch which converts everything in drivers/cbus to
> use register_platform_driver(). This means the USB gadget stuff is now
> working properly, but obviously this needs review!
>
> One problem though: Juha Yrjölä's name is being corrupted in the file
> headers. I'm using all-UTF8 here, but obviously the files are in a
> different encoding. What one is the correct to use? I can easily convert
> them to the appropriate UTF8 characters, but I don't want to piss people
> off by just doing so.
Can you please repost the patch with proper Signed-off-by? And with
the subject that makes sense for commit.. That way I can apply it
cleanly using patchworks and no editing needed ;)
Tony
> diff --git a/drivers/cbus/retu-rtc.c b/drivers/cbus/retu-rtc.c
> index 1ebc33b..76343f9 100644
> --- a/drivers/cbus/retu-rtc.c
> +++ b/drivers/cbus/retu-rtc.c
> @@ -361,7 +361,7 @@ static int retu_rtc_init_irq(void)
> }
>
>
> -static int __devinit retu_rtc_probe(struct device *dev)
> +static int __devinit retu_rtc_probe(struct platform_device *pdev)
> {
> int r;
>
> @@ -380,48 +380,49 @@ static int __devinit retu_rtc_probe(struct device *dev)
> else
> retu_rtc_do_reset();
>
> - if ((r = device_create_file(dev, &dev_attr_time)) != 0)
> + if ((r = device_create_file(&(pdev->dev), &dev_attr_time)) != 0)
> return r;
> - else if ((r = device_create_file(dev, &dev_attr_reset)) != 0)
> + else if ((r = device_create_file(&(pdev->dev), &dev_attr_reset)) != 0)
> goto err_unregister_time;
> - else if ((r = device_create_file(dev, &dev_attr_alarm)) != 0)
> + else if ((r = device_create_file(&(pdev->dev), &dev_attr_alarm)) != 0)
> goto err_unregister_reset;
> - else if ((r = device_create_file(dev, &dev_attr_alarm_expired)) != 0)
> + else if ((r = device_create_file(&(pdev->dev), &dev_attr_alarm_expired)) != 0)
> goto err_unregister_alarm;
> - else if ((r = device_create_file(dev, &dev_attr_cal)) != 0)
> + else if ((r = device_create_file(&(pdev->dev), &dev_attr_cal)) != 0)
> goto err_unregister_alarm_expired;
> else
> return r;
>
> err_unregister_alarm_expired:
> - device_remove_file(dev, &dev_attr_alarm_expired);
> + device_remove_file(&(pdev->dev), &dev_attr_alarm_expired);
> err_unregister_alarm:
> - device_remove_file(dev, &dev_attr_alarm);
> + device_remove_file(&(pdev->dev), &dev_attr_alarm);
> err_unregister_reset:
> - device_remove_file(dev, &dev_attr_reset);
> + device_remove_file(&(pdev->dev), &dev_attr_reset);
> err_unregister_time:
> - device_remove_file(dev, &dev_attr_time);
> + device_remove_file(&(pdev->dev), &dev_attr_time);
> return r;
> }
>
> -static int __devexit retu_rtc_remove(struct device *dev)
> +static int __devexit retu_rtc_remove(struct platform_device *pdev)
> {
> retu_disable_irq(RETU_INT_RTCS);
> retu_free_irq(RETU_INT_RTCS);
> retu_free_irq(RETU_INT_RTCA);
> - device_remove_file(dev, &dev_attr_cal);
> - device_remove_file(dev, &dev_attr_alarm_expired);
> - device_remove_file(dev, &dev_attr_alarm);
> - device_remove_file(dev, &dev_attr_reset);
> - device_remove_file(dev, &dev_attr_time);
> + device_remove_file(&(pdev->dev), &dev_attr_cal);
> + device_remove_file(&(pdev->dev), &dev_attr_alarm_expired);
> + device_remove_file(&(pdev->dev), &dev_attr_alarm);
> + device_remove_file(&(pdev->dev), &dev_attr_reset);
> + device_remove_file(&(pdev->dev), &dev_attr_time);
> return 0;
> }
>
> -static struct device_driver retu_rtc_driver = {
> - .name = "retu-rtc",
> - .bus = &platform_bus_type,
> +static struct platform_driver retu_rtc_driver = {
> .probe = retu_rtc_probe,
> .remove = __devexit_p(retu_rtc_remove),
> + .driver = {
> + .name = "retu-rtc",
> + }
> };
>
> static struct platform_device retu_rtc_device = {
> @@ -448,7 +449,7 @@ static int __init retu_rtc_init(void)
>
> init_completion(&retu_rtc_exited);
>
> - if ((ret = driver_register(&retu_rtc_driver)) != 0)
> + if ((ret = platform_driver_register(&retu_rtc_driver)) != 0)
> return ret;
>
> if ((ret = platform_device_register(&retu_rtc_device)) != 0)
> @@ -457,14 +458,14 @@ static int __init retu_rtc_init(void)
> return 0;
>
> err_unregister_driver:
> - driver_unregister(&retu_rtc_driver);
> + platform_driver_unregister(&retu_rtc_driver);
> return ret;
> }
>
> static void __exit retu_rtc_exit(void)
> {
> platform_device_unregister(&retu_rtc_device);
> - driver_unregister(&retu_rtc_driver);
> + platform_driver_unregister(&retu_rtc_driver);
>
> wait_for_completion(&retu_rtc_exited);
> }
> diff --git a/drivers/cbus/retu-wdt.c b/drivers/cbus/retu-wdt.c
> index b7b20b7..1fa181e 100644
> --- a/drivers/cbus/retu-wdt.c
> +++ b/drivers/cbus/retu-wdt.c
> @@ -104,20 +104,20 @@ static DEVICE_ATTR(period, S_IRUGO | S_IWUSR, retu_wdt_period_show, \
> retu_wdt_period_store);
> static DEVICE_ATTR(counter, S_IRUGO, retu_wdt_counter_show, NULL);
>
> -static int __devinit retu_wdt_probe(struct device *dev)
> +static int __devinit retu_wdt_probe(struct platform_device *pdev)
> {
> int ret;
>
> - ret = device_create_file(dev, &dev_attr_period);
> + ret = device_create_file(&(pdev->dev), &dev_attr_period);
> if (ret) {
> printk(KERN_ERR "retu_wdt_probe: Error creating "
> "sys device file: period\n");
> return ret;
> }
>
> - ret = device_create_file(dev, &dev_attr_counter);
> + ret = device_create_file(&(pdev->dev), &dev_attr_counter);
> if (ret) {
> - device_remove_file(dev, &dev_attr_period);
> + device_remove_file(&(pdev->dev), &dev_attr_period);
> printk(KERN_ERR "retu_wdt_probe: Error creating "
> "sys device file: counter\n");
> }
> @@ -125,10 +125,10 @@ static int __devinit retu_wdt_probe(struct device *dev)
> return ret;
> }
>
> -static int __devexit retu_wdt_remove(struct device *dev)
> +static int __devexit retu_wdt_remove(struct platform_device *pdev)
> {
> - device_remove_file(dev, &dev_attr_period);
> - device_remove_file(dev, &dev_attr_counter);
> + device_remove_file(&(pdev->dev), &dev_attr_period);
> + device_remove_file(&(pdev->dev), &dev_attr_counter);
> return 0;
> }
>
> @@ -145,11 +145,12 @@ static struct platform_device retu_wdt_device = {
> },
> };
>
> -static struct device_driver retu_wdt_driver = {
> - .name = "retu-watchdog",
> - .bus = &platform_bus_type,
> +static struct platform_driver retu_wdt_driver = {
> .probe = retu_wdt_probe,
> .remove = __devexit_p(retu_wdt_remove),
> + .driver = {
> + .name = "retu-watchdog",
> + }
> };
>
> static int __init retu_wdt_init(void)
> @@ -158,7 +159,7 @@ static int __init retu_wdt_init(void)
>
> init_completion(&retu_wdt_completion);
>
> - ret = driver_register(&retu_wdt_driver);
> + ret = platform_driver_register(&retu_wdt_driver);
> if (ret)
> return ret;
>
> @@ -178,7 +179,7 @@ static int __init retu_wdt_init(void)
> return ret;
>
> exit1:
> - driver_unregister(&retu_wdt_driver);
> + platform_driver_unregister(&retu_wdt_driver);
> wait_for_completion(&retu_wdt_completion);
>
> return ret;
> @@ -187,7 +188,7 @@ exit1:
> static void __exit retu_wdt_exit(void)
> {
> platform_device_unregister(&retu_wdt_device);
> - driver_unregister(&retu_wdt_driver);
> + platform_driver_unregister(&retu_wdt_driver);
>
> wait_for_completion(&retu_wdt_completion);
> }
> diff --git a/drivers/cbus/retu.c b/drivers/cbus/retu.c
> index 84d7840..d9f28d5 100644
> --- a/drivers/cbus/retu.c
> +++ b/drivers/cbus/retu.c
> @@ -5,7 +5,7 @@
> *
> * Copyright (C) 2004, 2005 Nokia Corporation
> *
> - * Written by Juha Yrj?l? <juha.yrjola@nokia.com>,
> + * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
> * David Weinehall <david.weinehall@nokia.com>, and
> * Mikko Ylinen <mikko.k.ylinen@nokia.com>
> *
> @@ -319,7 +319,7 @@ static void retu_power_off(void)
> * Probe for the Retu ASIC and allocate memory
> * for its device-struct if found
> */
> -static int __devinit retu_probe(struct device *dev)
> +static int __devinit retu_probe(struct platform_device *pdev)
> {
> const struct omap_em_asic_bb5_config * em_asic_config;
> int rev, ret;
> @@ -384,7 +384,7 @@ static int __devinit retu_probe(struct device *dev)
> return 0;
> }
>
> -static int retu_remove(struct device *dev)
> +static int retu_remove(struct platform_device *pdev)
> {
> #ifdef CONFIG_CBUS_RETU_USER
> retu_user_cleanup();
> @@ -403,11 +403,12 @@ static void retu_device_release(struct device *dev)
> complete(&device_release);
> }
>
> -static struct device_driver retu_driver = {
> - .name = "retu",
> - .bus = &platform_bus_type,
> +static struct platform_driver retu_driver = {
> .probe = retu_probe,
> .remove = retu_remove,
> + .driver = {
> + .name = "retu",
> + }
> };
>
> static struct platform_device retu_device = {
> @@ -431,11 +432,11 @@ static int __init retu_init(void)
>
> init_completion(&device_release);
>
> - if ((ret = driver_register(&retu_driver)) < 0)
> + if ((ret = platform_driver_register(&retu_driver)) < 0)
> return ret;
>
> if ((ret = platform_device_register(&retu_device)) < 0) {
> - driver_unregister(&retu_driver);
> + platform_driver_unregister(&retu_driver);
> return ret;
> }
> return 0;
> @@ -447,7 +448,7 @@ static int __init retu_init(void)
> static void __exit retu_exit(void)
> {
> platform_device_unregister(&retu_device);
> - driver_unregister(&retu_driver);
> + platform_driver_unregister(&retu_driver);
> wait_for_completion(&device_release);
> }
>
> @@ -464,4 +465,4 @@ module_exit(retu_exit);
>
> MODULE_DESCRIPTION("Retu ASIC control");
> MODULE_LICENSE("GPL");
> -MODULE_AUTHOR("Juha Yrj?l?, David Weinehall, and Mikko Ylinen");
> +MODULE_AUTHOR("Juha Yrj�l�, David Weinehall, and Mikko Ylinen");
> diff --git a/drivers/cbus/tahvo-usb.c b/drivers/cbus/tahvo-usb.c
> index d8ad836..df74d28 100644
> --- a/drivers/cbus/tahvo-usb.c
> +++ b/drivers/cbus/tahvo-usb.c
> @@ -9,9 +9,9 @@
> * Copyright (C) 2004 Texas Instruments
> * Copyright (C) 2004 David Brownell
> *
> - * Written by Juha Yrj?l? <juha.yrjola@nokia.com>,
> + * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
> * Tony Lindgren <tony@atomide.com>, and
> - * Timo Ter?s <timo.teras@nokia.com>
> + * Timo Ter�s <timo.teras@nokia.com>
> *
> * This file is subject to the terms and conditions of the GNU General
> * Public License. See the file "COPYING" in the main directory of this
> @@ -186,11 +186,11 @@ static int omap_otg_init(void)
> return 0;
> }
>
> -static int omap_otg_probe(struct device *dev)
> +static int omap_otg_probe(struct platform_device *pdev)
> {
> int ret;
>
> - tahvo_otg_dev = to_platform_device(dev);
> + tahvo_otg_dev = pdev;
> ret = omap_otg_init();
> if (ret != 0) {
> printk(KERN_ERR "tahvo-usb: omap_otg_init failed\n");
> @@ -202,19 +202,21 @@ static int omap_otg_probe(struct device *dev)
> &tahvo_usb_device);
> }
>
> -static int omap_otg_remove(struct device *dev)
> +static int omap_otg_remove(struct platform_device *pdev)
> {
> - free_irq(tahvo_otg_dev->resource[1].start, &tahvo_usb_device);
> + if (tahvo_otg_dev != NULL)
> + free_irq(tahvo_otg_dev->resource[1].start, &tahvo_usb_device);
> tahvo_otg_dev = NULL;
>
> return 0;
> }
>
> -struct device_driver omap_otg_driver = {
> - .name = "omap_otg",
> - .bus = &platform_bus_type,
> +struct platform_driver omap_otg_driver = {
> .probe = omap_otg_probe,
> .remove = omap_otg_remove,
> + .driver = {
> + .name = "omap_otg",
> + }
> };
>
> /*
> @@ -641,19 +643,19 @@ static ssize_t otg_mode_store(struct device *device,
> static DEVICE_ATTR(otg_mode, 0644, otg_mode_show, otg_mode_store);
> #endif
>
> -static int tahvo_usb_probe(struct device *dev)
> +static int tahvo_usb_probe(struct platform_device *pdev)
> {
> struct tahvo_usb *tu;
> int ret;
>
> - dev_dbg(dev, "probe\n");
> + dev_dbg(&(pdev->dev), "probe\n");
>
> /* Create driver data */
> tu = kmalloc(sizeof(*tu), GFP_KERNEL);
> if (!tu)
> return -ENOMEM;
> memset(tu, 0, sizeof(*tu));
> - tu->pt_dev = container_of(dev, struct platform_device, dev);
> + tu->pt_dev = pdev;
> #ifdef CONFIG_USB_OTG
> /* Default mode */
> #ifdef CONFIG_CBUS_TAHVO_USB_HOST_BY_DEFAULT
> @@ -680,9 +682,9 @@ static int tahvo_usb_probe(struct device *dev)
> }
>
> /* Attributes */
> - ret = device_create_file(dev, &dev_attr_vbus_state);
> + ret = device_create_file(&(pdev->dev), &dev_attr_vbus_state);
> #ifdef CONFIG_USB_OTG
> - ret |= device_create_file(dev, &dev_attr_otg_mode);
> + ret |= device_create_file(&(pdev->dev), &dev_attr_otg_mode);
> #endif
> if (ret)
> printk(KERN_ERR "attribute creation failed: %d\n", ret);
> @@ -706,7 +708,7 @@ static int tahvo_usb_probe(struct device *dev)
> return ret;
> }
>
> - dev->driver_data = tu;
> + pdev->dev.driver_data = tu;
>
> /* Act upon current vbus state once at startup. A vbus state irq may or
> * may not be generated in addition to this. */
> @@ -714,25 +716,26 @@ static int tahvo_usb_probe(struct device *dev)
> return 0;
> }
>
> -static int tahvo_usb_remove(struct device *dev)
> +static int tahvo_usb_remove(struct platform_device *pdev)
> {
> - dev_dbg(dev, "remove\n");
> + dev_dbg(&(pdev->dev), "remove\n");
>
> tahvo_free_irq(TAHVO_INT_VBUSON);
> flush_scheduled_work();
> otg_set_transceiver(0);
> - device_remove_file(dev, &dev_attr_vbus_state);
> + device_remove_file(&(pdev->dev), &dev_attr_vbus_state);
> #ifdef CONFIG_USB_OTG
> - device_remove_file(dev, &dev_attr_otg_mode);
> + device_remove_file(&(pdev->dev), &dev_attr_otg_mode);
> #endif
> return 0;
> }
>
> -static struct device_driver tahvo_usb_driver = {
> - .name = "tahvo-usb",
> - .bus = &platform_bus_type,
> +static struct platform_driver tahvo_usb_driver = {
> .probe = tahvo_usb_probe,
> .remove = tahvo_usb_remove,
> + .driver = {
> + .name = "tahvo-usb",
> + }
> };
>
> static struct platform_device tahvo_usb_device = {
> @@ -745,18 +748,18 @@ static int __init tahvo_usb_init(void)
> int ret = 0;
>
> printk(KERN_INFO "Tahvo USB transceiver driver initializing\n");
> - ret = driver_register(&tahvo_usb_driver);
> + ret = platform_driver_register(&tahvo_usb_driver);
> if (ret)
> return ret;
> ret = platform_device_register(&tahvo_usb_device);
> if (ret < 0) {
> - driver_unregister(&tahvo_usb_driver);
> + platform_driver_unregister(&tahvo_usb_driver);
> return ret;
> }
> - ret = driver_register(&omap_otg_driver);
> + ret = platform_driver_register(&omap_otg_driver);
> if (ret) {
> platform_device_unregister(&tahvo_usb_device);
> - driver_unregister(&tahvo_usb_driver);
> + platform_driver_unregister(&tahvo_usb_driver);
> return ret;
> }
> return 0;
> @@ -766,12 +769,12 @@ subsys_initcall(tahvo_usb_init);
>
> static void __exit tahvo_usb_exit(void)
> {
> - driver_unregister(&omap_otg_driver);
> + platform_driver_unregister(&omap_otg_driver);
> platform_device_unregister(&tahvo_usb_device);
> - driver_unregister(&tahvo_usb_driver);
> + platform_driver_unregister(&tahvo_usb_driver);
> }
> module_exit(tahvo_usb_exit);
>
> MODULE_DESCRIPTION("Tahvo USB OTG Transceiver Driver");
> MODULE_LICENSE("GPL");
> -MODULE_AUTHOR("Juha Yrj?l?, Tony Lindgren, and Timo Ter?s");
> +MODULE_AUTHOR("Juha Yrj�l�, Tony Lindgren, and Timo Ter�s");
> diff --git a/drivers/cbus/tahvo.c b/drivers/cbus/tahvo.c
> index e734c4c..29fd4b8 100644
> --- a/drivers/cbus/tahvo.c
> +++ b/drivers/cbus/tahvo.c
> @@ -5,7 +5,7 @@
> *
> * Copyright (C) 2004, 2005 Nokia Corporation
> *
> - * Written by Juha Yrj?l? <juha.yrjola@nokia.com>,
> + * Written by Juha Yrj�l� <juha.yrjola@nokia.com>,
> * David Weinehall <david.weinehall@nokia.com>, and
> * Mikko Ylinen <mikko.k.ylinen@nokia.com>
> *
> @@ -287,7 +287,7 @@ void tahvo_free_irq(int id)
> * Probe for the Tahvo ASIC and allocate memory
> * for its device-struct if found
> */
> -static int __devinit tahvo_probe(struct device *dev)
> +static int __devinit tahvo_probe(struct platform_device *pdev)
> {
> const struct omap_em_asic_bb5_config * em_asic_config;
> int rev, id, ret;
> @@ -356,7 +356,7 @@ static int __devinit tahvo_probe(struct device *dev)
> return 0;
> }
>
> -static int tahvo_remove(struct device *dev)
> +static int tahvo_remove(struct platform_device *pdev)
> {
> #ifdef CONFIG_CBUS_TAHVO_USER
> tahvo_user_cleanup();
> @@ -375,11 +375,12 @@ static void tahvo_device_release(struct device *dev)
> complete(&device_release);
> }
>
> -static struct device_driver tahvo_driver = {
> - .name = "tahvo",
> - .bus = &platform_bus_type,
> +static struct platform_driver tahvo_driver = {
> .probe = tahvo_probe,
> .remove = tahvo_remove,
> + .driver = {
> + .name = "tahvo",
> + }
> };
>
> static struct platform_device tahvo_device = {
> @@ -403,11 +404,11 @@ static int __init tahvo_init(void)
>
> init_completion(&device_release);
>
> - if ((ret = driver_register(&tahvo_driver)) < 0)
> + if ((ret = platform_driver_register(&tahvo_driver)) < 0)
> return ret;
>
> if ((ret = platform_device_register(&tahvo_device)) < 0) {
> - driver_unregister(&tahvo_driver);
> + platform_driver_unregister(&tahvo_driver);
> return ret;
> }
> return 0;
> @@ -419,7 +420,7 @@ static int __init tahvo_init(void)
> static void __exit tahvo_exit(void)
> {
> platform_device_unregister(&tahvo_device);
> - driver_unregister(&tahvo_driver);
> + platform_driver_unregister(&tahvo_driver);
> wait_for_completion(&device_release);
> }
>
> @@ -439,4 +440,4 @@ module_exit(tahvo_exit);
>
> MODULE_DESCRIPTION("Tahvo ASIC control");
> MODULE_LICENSE("GPL");
> -MODULE_AUTHOR("Juha Yrj?l?, David Weinehall, and Mikko Ylinen");
> +MODULE_AUTHOR("Juha Yrj�l�, David Weinehall, and Mikko Ylinen");
--
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next prev parent reply other threads:[~2009-06-01 23:18 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-16 13:06 Tracking N770 breakage Andrew de Quincey
2009-05-17 2:17 ` Andrew de Quincey
2009-05-19 23:15 ` Tony Lindgren
2009-05-20 5:15 ` Andrew de Quincey
2009-05-20 15:19 ` Tony Lindgren
2009-05-22 17:47 ` Andrew de Quincey
2009-05-22 18:33 ` Andrew de Quincey
2009-05-22 22:18 ` Andrew de Quincey
2009-05-23 1:39 ` Andrew de Quincey
2009-05-23 1:47 ` Tony Lindgren
2009-05-23 11:11 ` Andrew de Quincey
2009-05-23 11:30 ` Andrew de Quincey
2009-05-23 12:28 ` Andrew de Quincey
2009-05-23 13:25 ` Andrew de Quincey
2009-06-01 23:18 ` Tony Lindgren [this message]
2009-06-08 19:55 ` [patch] Convert cbus driver code to use platform APIs consistently Andrew de Quincey
2009-06-09 10:20 ` Tony Lindgren
2009-06-09 17:13 ` Andrew de Quincey
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