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SubjectRe: [PATCH] pinctrl: Rename Broadcom Capri pinctrl driver
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On Tue, Jan 21, 2014 at 5:35 PM, Matt Porter <mporter@linaro.org> wrote:
> On Tue, Jan 21, 2014 at 04:59:35PM -0800, Olof Johansson wrote:
>> Hi,
>>
>>
>> On Tue, Jan 21, 2014 at 2:38 PM, Sherman Yin <syin@broadcom.com> wrote:
>> > To be consistent with other Broadcom drivers, the Broadcom Capri pinctrl
>> > driver and its related CONFIG option are renamed to bcm281xx.
>> >
>> > Devicetree compatible string and binding documentation use
>> > "brcm,bcm11351-pinctrl" to match the machine binding here:
>> > Documentation/devicetree/bindings/arm/bcm/bcm11351.txt
>> >
>> > This driver supports pinctrl on BCM11130, BCM11140, BCM11351, BCM28145
>> > and BCM28155 SoCs.
>> >
>> > Signed-off-by: Sherman Yin <syin@broadcom.com>
>> > Reviewed-by: Matt Porter <mporter@linaro.org>
>> > ---
>> > ...capri-pinctrl.txt => brcm,bcm11351-pinctrl.txt} | 8 +-
>> > arch/arm/boot/dts/bcm11351.dtsi | 2 +-
>> > arch/arm/configs/bcm_defconfig | 2 +-
>> > drivers/pinctrl/Kconfig | 8 +-
>> > drivers/pinctrl/Makefile | 2 +-
>> > .../{pinctrl-capri.c => pinctrl-bcm281xx.c} | 1521 ++++++++++----------
>> > 6 files changed, 775 insertions(+), 768 deletions(-)
>> > rename Documentation/devicetree/bindings/pinctrl/{brcm,capri-pinctrl.txt => brcm,bcm11351-pinctrl.txt} (98%)
>> > rename drivers/pinctrl/{pinctrl-capri.c => pinctrl-bcm281xx.c} (25%)
>> >
>> > diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,capri-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/brcm,bcm11351-pinctrl.txt
>> > similarity index 98%
>> > rename from Documentation/devicetree/bindings/pinctrl/brcm,capri-pinctrl.txt
>> > rename to Documentation/devicetree/bindings/pinctrl/brcm,bcm11351-pinctrl.txt
>> > index 9e9e9ef..c119deb 100644
>> > --- a/Documentation/devicetree/bindings/pinctrl/brcm,capri-pinctrl.txt
>> > +++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm11351-pinctrl.txt
>> > @@ -1,4 +1,4 @@
>> > -Broadcom Capri Pin Controller
>> > +Broadcom BCM281xx Pin Controller
>> >
>> > This is a pin controller for the Broadcom BCM281xx SoC family, which includes
>> > BCM11130, BCM11140, BCM11351, BCM28145, and BCM28155 SoCs.
>> > @@ -7,14 +7,14 @@ BCM11130, BCM11140, BCM11351, BCM28145, and BCM28155 SoCs.
>> >
>> > Required Properties:
>> >
>> > -- compatible: Must be "brcm,capri-pinctrl".
>> > +- compatible: Must be "brcm,bcm11351-pinctrl"
>>
>> Since the original binding is queued for 3.14 (I believe?), if this
>> rename isn't merged for 3.14 then you will still need to accept the
>> old compatible string (binding). You can document it as deprecated,
>> but the driver needs to still probe with it.
>
> Linus had mentioned that he could take a rename in 3.14-rc for this
> driver which is really what we had in mind here. Since the binding
> doesn't become stable until 3.14 is actually released I was under the
> impression that this is ok without keeping a deprecated compatible
> string. I notice that Tomasz had comments about this type of situation
> in http://www.spinics.net/lists/devicetree/msg18010.html

Yes, if the rename goes in before the binding has been in one stable
release then we can make noncompatible changes. Which is why I said if
this isn't merged for 3.14, etc.


-Olof


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