Re: [PATCH V2 1/3] ufs: core: Add CPU latency QoS support for ufs driver

[Bart Van Assche <bvanassche@acm.org>]

On 12/4/23 06:30, Maramaina Naresh wrote:
> +	u32	(*config_qos_vote)(struct ufs_hba *hba);

Please remove the above callback since this patch series does not
introduce any instances of this callback.

> +
> +	/* This capability allows the host controller driver to use the PM QoS
> +	 * feature.
> +	 */
> +	UFSHCD_CAP_PM_QOS				= 1 << 13,
>   };

Why does it depend on the host driver whether or not PM QoS is
enabled? Why isn't it enabled unconditionally?

> + * @pm_qos_req: PM QoS request handle
> + * @pm_qos_init: flag to check if pm qos init completed
>    */

Documentation for pm_qos_init is missing.

>   struct ufs_hba {
>   	void __iomem *mmio_base;
> @@ -1076,6 +1089,9 @@ struct ufs_hba {
>   	struct ufs_hw_queue *uhq;
>   	struct ufs_hw_queue *dev_cmd_queue;
>   	struct ufshcd_mcq_opr_info_t mcq_opr[OPR_MAX];
> +	struct pm_qos_request pm_qos_req;
> +	bool pm_qos_init;
> +	u32 qos_vote;

Please rename "pm_qos_init" into "pm_qos_initialized".

Thanks,

Bart.