On Tue, Aug 20, 2013 at 04:30:43PM +0200, Wolfram Sang wrote: > On Tue, Aug 20, 2013 at 12:28:13PM +0300, Mika Westerberg wrote: > > [Added Jerry as he found out a problem when acpi_i2c is being build as a > > module, this should solve it as well.] > > > > On Tue, Aug 20, 2013 at 01:25:27AM +0200, Rafael J. Wysocki wrote: > > > On Monday, August 19, 2013 04:56:19 PM Stephen Warren wrote: > > > > On 08/19/2013 05:04 PM, Rafael J. Wysocki wrote: > > > > > On Monday, August 19, 2013 03:19:18 PM Wolfram Sang wrote: > > > > >> I2C of helpers used to live in of_i2c.c but experience (from SPI) shows > > > > >> that it is much cleaner to have this in the core. This also removes a > > > > >> circular dependency between the helpers and the core, and so we can > > > > >> finally register child nodes in the core instead of doing this manually > > > > >> in each driver. So, fix the drivers and documentation, too. > > > > > > > > > > Perhaps we should do the analogous for ACPI then? > > > > Here is the ACPI version based on the current patch from Wolfram (there is > > a compile error because of missing dummy implementation of > > of_i2c_register_devices()) > > > > From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> > > Subject: [PATCH] i2c: move ACPI helpers into the core > > > > This follows what has already been done for the DeviceTree helpers. Move > > the ACPI helpers from drivers/acpi/acpi_i2c.c to the I2C core and update > > documentation accordingly. > > > > This also solves a problem reported by Jerry Snitselaar that we can't build > > the ACPI I2C helpers as a module. > > > > Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> > > Nice, one thing, though: > > > /* create pre-declared device nodes */ > > of_i2c_register_devices(adap); > > + acpi_i2c_register_devices(adap); > > I prefer the if (IS_ENABLED()) solution and will use this in my V2 as > well. For the ACPI part we need to have the dummy stub because CONFIG_ACPI is needed in order to be able to call the ACPI APIs -- there are still functions that are only available when CONFIG_ACPI is enabled. -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
