linux-kernel - Re: [RESEND PATCH] tpm: nuvoton: Use i2c_get_match

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Date:   Wed, 15 Nov 2023 23:37:55 +0200
From:   "Jarkko Sakkinen" <jarkko@...nel.org>
To:     "Rob Herring" <robh@...nel.org>, "Peter Huewe" <peterhuewe@....de>,
        "Jason Gunthorpe" <jgg@...pe.ca>
Cc:     <linux-integrity@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND PATCH] tpm: nuvoton: Use i2c_get_match_data()

On Wed Nov 15, 2023 at 11:02 PM EET, Rob Herring wrote:
> Use preferred i2c_get_match_data() instead of of_match_device() to
> get the driver match data. With this, adjust the includes to explicitly
> include the correct headers.
>
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
>  drivers/char/tpm/tpm_i2c_nuvoton.c | 15 ++++-----------
>  1 file changed, 4 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c
> index d7be03c41098..5490f7e0fa43 100644
> --- a/drivers/char/tpm/tpm_i2c_nuvoton.c
> +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
> @@ -19,7 +19,8 @@
>  #include <linux/interrupt.h>
>  #include <linux/wait.h>
>  #include <linux/i2c.h>
> -#include <linux/of_device.h>
> +#include <linux/of.h>
> +#include <linux/property.h>
>  #include "tpm.h"
>  
>  /* I2C interface offsets */
> @@ -524,7 +525,6 @@ static int get_vid(struct i2c_client *client, u32 *res)
>  
>  static int i2c_nuvoton_probe(struct i2c_client *client)
>  {
> -	const struct i2c_device_id *id = i2c_client_get_device_id(client);
>  	int rc;
>  	struct tpm_chip *chip;
>  	struct device *dev = &client->dev;
> @@ -546,15 +546,8 @@ static int i2c_nuvoton_probe(struct i2c_client *client)
>  	if (!priv)
>  		return -ENOMEM;
>  
> -	if (dev->of_node) {
> -		const struct of_device_id *of_id;
> -
> -		of_id = of_match_device(dev->driver->of_match_table, dev);
> -		if (of_id && of_id->data == OF_IS_TPM2)
> -			chip->flags |= TPM_CHIP_FLAG_TPM2;
> -	} else
> -		if (id->driver_data == I2C_IS_TPM2)
> -			chip->flags |= TPM_CHIP_FLAG_TPM2;
> +	if (i2c_get_match_data(client))
> +		chip->flags |= TPM_CHIP_FLAG_TPM2;
>  
>  	init_waitqueue_head(&priv->read_queue);
>  

OK, apologies for having to do a resend. I'll pick this, thanks!

Reviewed-by: Jarkko Sakkinen <jarkko@...nel.org>

BR, Jarkko