Hi, Dmitry, On Wed, 2014-07-30 at 14:45 +0800, Zhang Rui wrote: > Hi, Dmitry, > > On Wed, 2014-07-09 at 09:57 -0700, Dmitry Torokhov wrote: > > On Tue, Jul 08, 2014 at 10:50:04PM +0200, Rafael J. Wysocki wrote: > > > On Wednesday, July 02, 2014 10:01:53 PM Zhang Rui wrote: > > > > From c2ee1886ba230d9d93d2ea2f350b1dc1a2d5ead5 Mon Sep 17 00:00:00 2001 > > > > From: Jin Yao <[email protected]> > > > > Date: Thu, 26 Jun 2014 10:26:44 +0800 > > > > Subject: [PATCH] soc_button_array: fix the issue that button device > > > > can't be > > > > enumerated since 3.16-rc1 > > > > > > Hi Rui, > > > > > > For 3.16 I'm afraid we need to add the missing device ID to the PNP list. > > > It is too late to do the conversion at this point IMO and we can do it > > > later. > > > > But for 3.17 this patch is the right way of doing things, right? > > This is the patch we should use for 3.17. > Compared with the previous version, I just removed the soc_button_array id > from acpi pnp id list, which was added in 3.16-rc5, as an urgent fix. > > Please review. > Can you please take a look at this patch?
thanks, rui > From f09ff78ba75a9de0f6df333be6238a5b1bf36464 Mon Sep 17 00:00:00 2001 > From: Jin Yao <[email protected]> > Date: Thu, 26 Jun 2014 10:26:44 +0800 > Subject: [PATCH] convert soc_button_array driver to platform bus > > ACPI device enumeration mechanism changed a lot since 3.16-rc1. > ACPI device objects with _HID will be enumerated to platform bus by default. > For the existing PNP drivers that probe the PNPACPI devices, the device ids > are listed explicitly in drivers/acpi/acpi_pnp.c. > But ACPI folks will continue their effort on shrinking this id list by > converting the PNP drivers to platform drivers, for the devices that don't > belong to PNP bus in nature. > > convert soc_button_array driver from PNP bus to platform bus in this patch. > > Signed-off-by: Jin Yao <[email protected]> > Signed-off-by: Zhang Rui <[email protected]> > --- > drivers/acpi/acpi_pnp.c | 2 -- > drivers/input/misc/soc_button_array.c | 60 > ++++++++++++++++++----------------- > 2 files changed, 31 insertions(+), 31 deletions(-) > > diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c > index 4ddb0dc..6703c1f 100644 > --- a/drivers/acpi/acpi_pnp.c > +++ b/drivers/acpi/acpi_pnp.c > @@ -14,8 +14,6 @@ > #include <linux/module.h> > > static const struct acpi_device_id acpi_pnp_device_ids[] = { > - /* soc_button_array */ > - {"PNP0C40"}, > /* pata_isapnp */ > {"PNP0600"}, /* Generic ESDI/IDE/ATA compatible hard disk > controller */ > /* floppy */ > diff --git a/drivers/input/misc/soc_button_array.c > b/drivers/input/misc/soc_button_array.c > index 5a6334b..16ca162 100644 > --- a/drivers/input/misc/soc_button_array.c > +++ b/drivers/input/misc/soc_button_array.c > @@ -18,7 +18,7 @@ > #include <linux/gpio/consumer.h> > #include <linux/gpio_keys.h> > #include <linux/platform_device.h> > -#include <linux/pnp.h> > +#include <linux/acpi.h> > > /* > * Definition of buttons on the tablet. The ACPI index of each button > @@ -67,7 +67,7 @@ static int soc_button_lookup_gpio(struct device *dev, int > acpi_index) > } > > static struct platform_device * > -soc_button_device_create(struct pnp_dev *pdev, > +soc_button_device_create(struct platform_device *pdev, > const struct soc_button_info *button_info, > bool autorepeat) > { > @@ -135,30 +135,40 @@ soc_button_device_create(struct pnp_dev *pdev, > return ERR_PTR(error); > } > > -static void soc_button_remove(struct pnp_dev *pdev) > +static int soc_button_remove(struct platform_device *pdev) > { > - struct soc_button_data *priv = pnp_get_drvdata(pdev); > + struct soc_button_data *priv = platform_get_drvdata(pdev); > + > int i; > > for (i = 0; i < BUTTON_TYPES; i++) > if (priv->children[i]) > platform_device_unregister(priv->children[i]); > + > + return 0; > } > > -static int soc_button_pnp_probe(struct pnp_dev *pdev, > - const struct pnp_device_id *id) > +static int soc_button_probe(struct platform_device *pdev) > { > - const struct soc_button_info *button_info = (void *)id->driver_data; > + struct device *dev = &pdev->dev; > + const struct acpi_device_id *id; > + struct soc_button_info *button_info; > struct soc_button_data *priv; > struct platform_device *pd; > int i; > int error; > > + id = acpi_match_device(dev->driver->acpi_match_table, dev); > + if (!id) > + return -ENODEV; > + > + button_info = (struct soc_button_info *)id->driver_data; > + > priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); > if (!priv) > return -ENOMEM; > > - pnp_set_drvdata(pdev, priv); > + platform_set_drvdata(pdev, priv); > > for (i = 0; i < BUTTON_TYPES; i++) { > pd = soc_button_device_create(pdev, button_info, i == 0); > @@ -189,30 +199,22 @@ static struct soc_button_info soc_button_PNP0C40[] = { > { } > }; > > -static const struct pnp_device_id soc_button_pnp_match[] = { > - { .id = "PNP0C40", .driver_data = (long)soc_button_PNP0C40 }, > - { .id = "" } > +static const struct acpi_device_id soc_button_acpi_match[] = { > + { "PNP0C40", (unsigned long)soc_button_PNP0C40 }, > + { } > }; > -MODULE_DEVICE_TABLE(pnp, soc_button_pnp_match); > > -static struct pnp_driver soc_button_pnp_driver = { > - .name = KBUILD_MODNAME, > - .id_table = soc_button_pnp_match, > - .probe = soc_button_pnp_probe, > +MODULE_DEVICE_TABLE(acpi, soc_button_acpi_match); > + > +static struct platform_driver soc_button_driver = { > + .probe = soc_button_probe, > .remove = soc_button_remove, > + .driver = { > + .name = KBUILD_MODNAME, > + .owner = THIS_MODULE, > + .acpi_match_table = ACPI_PTR(soc_button_acpi_match), > + }, > }; > - > -static int __init soc_button_init(void) > -{ > - return pnp_register_driver(&soc_button_pnp_driver); > -} > - > -static void __exit soc_button_exit(void) > -{ > - pnp_unregister_driver(&soc_button_pnp_driver); > -} > - > -module_init(soc_button_init); > -module_exit(soc_button_exit); > +module_platform_driver(soc_button_driver); > > MODULE_LICENSE("GPL"); -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
