Re: [PATCH v7 4/8] add ufshcd_get_variant ufshcd_set_variant

[subhashj@codeaurora.org]

Looks good to me.
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>


> Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
>
> ---
>  drivers/scsi/ufs/ufs-qcom.c | 34 +++++++++++++++++-----------------
>  drivers/scsi/ufs/ufshcd.h   | 21 +++++++++++++++++++++
>  2 files changed, 38 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
> index 6c23bbf..64c54b7 100644
> --- a/drivers/scsi/ufs/ufs-qcom.c
> +++ b/drivers/scsi/ufs/ufs-qcom.c
> @@ -155,7 +155,7 @@ out:
>
>  static int ufs_qcom_link_startup_post_change(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	struct phy *phy = host->generic_phy;
>  	u32 tx_lanes;
>  	int err = 0;
> @@ -211,7 +211,7 @@ static int ufs_qcom_check_hibern8(struct ufs_hba *hba)
>
>  static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	struct phy *phy = host->generic_phy;
>  	int ret = 0;
>  	bool is_rate_B = (UFS_QCOM_LIMIT_HS_RATE == PA_HS_MODE_B)
> @@ -273,7 +273,7 @@ static void ufs_qcom_enable_hw_clk_gating(struct
> ufs_hba *hba)
>
>  static int ufs_qcom_hce_enable_notify(struct ufs_hba *hba, bool status)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	int err = 0;
>
>  	switch (status) {
> @@ -307,7 +307,7 @@ static int ufs_qcom_hce_enable_notify(struct ufs_hba
> *hba, bool status)
>  static unsigned long
>  ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear, u32 hs, u32 rate)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	struct ufs_clk_info *clki;
>  	u32 core_clk_period_in_ns;
>  	u32 tx_clk_cycles_per_us = 0;
> @@ -448,7 +448,7 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba
> *hba, bool status)
>
>  static int ufs_qcom_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	struct phy *phy = host->generic_phy;
>  	int ret = 0;
>
> @@ -479,7 +479,7 @@ out:
>
>  static int ufs_qcom_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	struct phy *phy = host->generic_phy;
>  	int err;
>
> @@ -621,7 +621,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba
> *hba,
>  				struct ufs_pa_layer_attr *dev_req_params)
>  {
>  	u32 val;
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	struct phy *phy = host->generic_phy;
>  	struct ufs_qcom_dev_params ufs_qcom_cap;
>  	int ret = 0;
> @@ -696,7 +696,7 @@ out:
>
>  static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>
>  	if (host->hw_ver.major == 0x1)
>  		return UFSHCI_VERSION_11;
> @@ -715,7 +715,7 @@ static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba
> *hba)
>   */
>  static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>
>  	if (host->hw_ver.major == 0x01) {
>  		hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS
> @@ -740,7 +740,7 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba
> *hba)
>
>  static void ufs_qcom_set_caps(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>
>  	if (host->hw_ver.major >= 0x2)
>  		host->caps = UFS_QCOM_CAP_QUNIPRO;
> @@ -811,7 +811,7 @@ static void ufs_qcom_get_speed_mode(struct
> ufs_pa_layer_attr *p, char *result)
>
>  static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	int err = 0;
>  	int vote = 0;
>
> @@ -866,7 +866,7 @@ show_ufs_to_mem_max_bus_bw(struct device *dev, struct
> device_attribute *attr,
>  			char *buf)
>  {
>  	struct ufs_hba *hba = dev_get_drvdata(dev);
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>
>  	return snprintf(buf, PAGE_SIZE, "%u\n",
>  			host->bus_vote.is_max_bw_needed);
> @@ -877,7 +877,7 @@ store_ufs_to_mem_max_bus_bw(struct device *dev, struct
> device_attribute *attr,
>  		const char *buf, size_t count)
>  {
>  	struct ufs_hba *hba = dev_get_drvdata(dev);
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	uint32_t value;
>
>  	if (!kstrtou32(buf, 0, &value)) {
> @@ -954,7 +954,7 @@ static int ufs_qcom_init(struct ufs_hba *hba)
>  	}
>
>  	host->hba = hba;
> -	hba->priv = (void *)host;
> +	ufshcd_set_variant(hba, host);
>
>  	host->generic_phy = devm_phy_get(dev, "ufsphy");
>
> @@ -1003,14 +1003,14 @@ out_unregister_bus:
>  	phy_exit(host->generic_phy);
>  out_host_free:
>  	devm_kfree(dev, host);
> -	hba->priv = NULL;
> +	ufshcd_set_variant(hba, NULL);
>  out:
>  	return err;
>  }
>
>  static void ufs_qcom_exit(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>
>  	ufs_qcom_disable_lane_clks(host);
>  	phy_power_off(host->generic_phy);
> @@ -1019,7 +1019,7 @@ static void ufs_qcom_exit(struct ufs_hba *hba)
>  static
>  void ufs_qcom_clk_scale_notify(struct ufs_hba *hba)
>  {
> -	struct ufs_qcom_host *host = hba->priv;
> +	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
>  	struct ufs_pa_layer_attr *dev_req_params = &host->dev_req_params;
>
>  	if (!dev_req_params)
> diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
> index c40a0e7..54e7afb 100644
> --- a/drivers/scsi/ufs/ufshcd.h
> +++ b/drivers/scsi/ufs/ufshcd.h
> @@ -594,6 +594,27 @@ static inline void check_upiu_size(void)
>  		GENERAL_UPIU_REQUEST_SIZE + QUERY_DESC_MAX_SIZE);
>  }
>
> +/**
> + * ufshcd_set_variant - set variant specific data to the hba
> + * @hba - per adapter instance
> + * @variant - pointer to variant specific data
> + */
> +static inline void ufshcd_set_variant(struct ufs_hba *hba, void *variant)
> +{
> +	BUG_ON(!hba);
> +	hba->priv = variant;
> +}
> +
> +/**
> + * ufshcd_get_variant - get variant specific data from the hba
> + * @hba - per adapter instance
> + */
> +static inline void *ufshcd_get_variant(struct ufs_hba *hba)
> +{
> +	BUG_ON(!hba);
> +	return hba->priv;
> +}
> +
>  extern int ufshcd_runtime_suspend(struct ufs_hba *hba);
>  extern int ufshcd_runtime_resume(struct ufs_hba *hba);
>  extern int ufshcd_runtime_idle(struct ufs_hba *hba);
> --
> 1.8.5.2
>
> --
> QUALCOMM ISRAEL, on behalf of Qualcomm Innovation Center, Inc. is a member
> of Code Aurora Forum, hosted by The Linux Foundation
>