Re: [PATCH v9 3/6] remoteproc: pru: Add enum for PRU Core Indentifiers.

[Roger Quadros <rogerq@kernel.org>]

Hi,

On 18/11/2022 13:19, MD Danish Anwar wrote:
> Introducing enum pruss_pru_id for PRU Core Identifiers.
> PRUSS_PRU0 indicates PRU Core 0.
> PRUSS_PRU1 indicates PRU Core 1.
> PRUSS_NUM_PRUS indicates the total number of PRU Cores.
> 
> Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
> ---
>  drivers/remoteproc/pru_rproc.c | 6 +++---
>  include/linux/pruss.h          | 9 +++++++++
>  2 files changed, 12 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/remoteproc/pru_rproc.c b/drivers/remoteproc/pru_rproc.c
> index 4769ade9c316..7d4ed39b3772 100644
> --- a/drivers/remoteproc/pru_rproc.c
> +++ b/drivers/remoteproc/pru_rproc.c
> @@ -564,7 +564,7 @@ static void *pru_d_da_to_va(struct pru_rproc *pru, u32 da, size_t len)
>  	dram0 = pruss->mem_regions[PRUSS_MEM_DRAM0];
>  	dram1 = pruss->mem_regions[PRUSS_MEM_DRAM1];
>  	/* PRU1 has its local RAM addresses reversed */
> -	if (pru->id == 1)
> +	if (pru->id == PRUSS_PRU1)
>  		swap(dram0, dram1);
>  	shrd_ram = pruss->mem_regions[PRUSS_MEM_SHRD_RAM2];
>  
> @@ -873,14 +873,14 @@ static int pru_rproc_set_id(struct pru_rproc *pru)
>  	case RTU0_IRAM_ADDR_MASK:
>  		fallthrough;
>  	case PRU0_IRAM_ADDR_MASK:
> -		pru->id = 0;
> +		pru->id = PRUSS_PRU0;
>  		break;
>  	case TX_PRU1_IRAM_ADDR_MASK:
>  		fallthrough;
>  	case RTU1_IRAM_ADDR_MASK:
>  		fallthrough;
>  	case PRU1_IRAM_ADDR_MASK:
> -		pru->id = 1;
> +		pru->id = PRUSS_PRU1;
>  		break;
>  	default:
>  		ret = -EINVAL;
> diff --git a/include/linux/pruss.h b/include/linux/pruss.h
> index 4909226f14a9..fdc719b43db0 100644
> --- a/include/linux/pruss.h
> +++ b/include/linux/pruss.h
> @@ -14,6 +14,15 @@
>  
>  #define PRU_RPROC_DRVNAME "pru-rproc"
>  
> +/*
> + * enum pruss_pru_id - PRU core identifiers
> + */

This does not follow kernel-doc style
https://www.kernel.org/doc/html/v6.0/doc-guide/kernel-doc.html#structure-union-and-enumeration-documentation

> +enum pruss_pru_id {
> +	PRUSS_PRU0 = 0,
> +	PRUSS_PRU1,
> +	PRUSS_NUM_PRUS,
> +};
> +
>  struct device_node;
>  
>  #if IS_ENABLED(CONFIG_PRU_REMOTEPROC)

cheers,
-roger