Am 2021-05-06 16:00, schrieb Rob Herring:
On Fri, Apr 30, 2021 at 02:35:08PM +0200, Robert Marko wrote:
Delta TN48M CPLD is used as a GPIO expander for the SFP GPIOs.
It is a mix of input only and output only pins.
Since there is no logical GPIO numbering arbitrary one is used
along dt-bindings to make it humanly readable.
Signed-off-by: Robert Marko <robert.marko@xxxxxxxxxx>
---
drivers/gpio/Kconfig | 12 +++
drivers/gpio/Makefile | 1 +
drivers/gpio/gpio-tn48m.c | 191
++++++++++++++++++++++++++++++++++++++
drivers/mfd/tn48m-cpld.c | 6 +-
include/linux/mfd/tn48m.h | 3 +
5 files changed, 212 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpio/gpio-tn48m.c
+static const struct platform_device_id tn48m_gpio_id_table[] = {
+ { "delta,tn48m-gpio", },
Looks like a compatible, but is not. I think you can drop this and just
use 'tm48m-gpio' (the driver name).
I'm just curious, why isn't the vendor included here (as there
might be a chance for name clashes in the future).
-michael
