Thread (9 messages) 9 messages, 2 authors, 2023-03-25

Re: [PATCH v4 5/5] pinctrl: s32: separate const device data from struct s32_pinctrl_soc_info

From: Andy Shevchenko <hidden>
Date: 2023-03-24 14:56:19
Also in: linux-gpio, lkml

On Fri, Mar 24, 2023 at 4:38 PM Chester Lin [off-list ref] wrote:
The .data field in struct of_device_id is used as a const member so it's
inappropriate to attach struct s32_pinctrl_soc_info with of_device_id
because some members in s32_pinctrl_soc_info need to be filled by
pinctrl-s32cc at runtime.

For this reason, struct s32_pinctrl_soc_info must be allocated in
pinctrl-s32cc and then create a new struct s32_pinctrl_soc_data in order
to represent const .data in of_device_id. To combine these two structures,
a s32_pinctrl_soc_data pointer is introduced in s32_pinctrl_soc_info.

Besides, use of_device_get_match_data() instead of of_match_device() since
the driver only needs to retrieve the .data from of_device_id.
...
                .compatible = "nxp,s32g2-siul2-pinctrl",
-               .data = (void *) &s32_pinctrl_info,
+               .data = (void *) &s32_pinctrl_data,
Do you need casting now?

-- 
With Best Regards,
Andy Shevchenko

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