From 0b1d96d515ef99ea244a372134538147144f490a Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Sat, 16 Mar 2019 13:04:43 +0800 Subject: [PATCH] scsi: ufs-hisi: Re-factor ufshcd_get_pwr_dev_param ufshcd_get_pwr_dev_param function and ufs_dev_params struct have been relocated to ufs core. Switch ufs-hisi to the common interface. Signed-off-by: Stanley Chu Reviewed-by: Avri Altman Acked-by: Bean Huo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-hisi.c | 109 ++---------------------------------- 1 file changed, 4 insertions(+), 105 deletions(-) diff --git a/drivers/scsi/ufs/ufs-hisi.c b/drivers/scsi/ufs/ufs-hisi.c index 2f592df921d9..7aed0a1a794e 100644 --- a/drivers/scsi/ufs/ufs-hisi.c +++ b/drivers/scsi/ufs/ufs-hisi.c @@ -293,108 +293,7 @@ static int ufs_hisi_link_startup_notify(struct ufs_hba *hba, return err; } -struct ufs_hisi_dev_params { - u32 pwm_rx_gear; /* pwm rx gear to work in */ - u32 pwm_tx_gear; /* pwm tx gear to work in */ - u32 hs_rx_gear; /* hs rx gear to work in */ - u32 hs_tx_gear; /* hs tx gear to work in */ - u32 rx_lanes; /* number of rx lanes */ - u32 tx_lanes; /* number of tx lanes */ - u32 rx_pwr_pwm; /* rx pwm working pwr */ - u32 tx_pwr_pwm; /* tx pwm working pwr */ - u32 rx_pwr_hs; /* rx hs working pwr */ - u32 tx_pwr_hs; /* tx hs working pwr */ - u32 hs_rate; /* rate A/B to work in HS */ - u32 desired_working_mode; -}; - -static int ufs_hisi_get_pwr_dev_param( - struct ufs_hisi_dev_params *hisi_param, - struct ufs_pa_layer_attr *dev_max, - struct ufs_pa_layer_attr *agreed_pwr) -{ - int min_hisi_gear; - int min_dev_gear; - bool is_dev_sup_hs = false; - bool is_hisi_max_hs = false; - - if (dev_max->pwr_rx == FASTAUTO_MODE || dev_max->pwr_rx == FAST_MODE) - is_dev_sup_hs = true; - - if (hisi_param->desired_working_mode == FAST) { - is_hisi_max_hs = true; - min_hisi_gear = min_t(u32, hisi_param->hs_rx_gear, - hisi_param->hs_tx_gear); - } else { - min_hisi_gear = min_t(u32, hisi_param->pwm_rx_gear, - hisi_param->pwm_tx_gear); - } - - /* - * device doesn't support HS but - * hisi_param->desired_working_mode is HS, - * thus device and hisi_param don't agree - */ - if (!is_dev_sup_hs && is_hisi_max_hs) { - pr_err("%s: device not support HS\n", __func__); - return -ENOTSUPP; - } else if (is_dev_sup_hs && is_hisi_max_hs) { - /* - * since device supports HS, it supports FAST_MODE. - * since hisi_param->desired_working_mode is also HS - * then final decision (FAST/FASTAUTO) is done according - * to hisi_params as it is the restricting factor - */ - agreed_pwr->pwr_rx = agreed_pwr->pwr_tx = - hisi_param->rx_pwr_hs; - } else { - /* - * here hisi_param->desired_working_mode is PWM. - * it doesn't matter whether device supports HS or PWM, - * in both cases hisi_param->desired_working_mode will - * determine the mode - */ - agreed_pwr->pwr_rx = agreed_pwr->pwr_tx = - hisi_param->rx_pwr_pwm; - } - - /* - * we would like tx to work in the minimum number of lanes - * between device capability and vendor preferences. - * the same decision will be made for rx - */ - agreed_pwr->lane_tx = - min_t(u32, dev_max->lane_tx, hisi_param->tx_lanes); - agreed_pwr->lane_rx = - min_t(u32, dev_max->lane_rx, hisi_param->rx_lanes); - - /* device maximum gear is the minimum between device rx and tx gears */ - min_dev_gear = min_t(u32, dev_max->gear_rx, dev_max->gear_tx); - - /* - * if both device capabilities and vendor pre-defined preferences are - * both HS or both PWM then set the minimum gear to be the chosen - * working gear. - * if one is PWM and one is HS then the one that is PWM get to decide - * what is the gear, as it is the one that also decided previously what - * pwr the device will be configured to. - */ - if ((is_dev_sup_hs && is_hisi_max_hs) || - (!is_dev_sup_hs && !is_hisi_max_hs)) - agreed_pwr->gear_rx = agreed_pwr->gear_tx = - min_t(u32, min_dev_gear, min_hisi_gear); - else - agreed_pwr->gear_rx = agreed_pwr->gear_tx = min_hisi_gear; - - agreed_pwr->hs_rate = hisi_param->hs_rate; - - pr_info("ufs final power mode: gear = %d, lane = %d, pwr = %d, rate = %d\n", - agreed_pwr->gear_rx, agreed_pwr->lane_rx, agreed_pwr->pwr_rx, - agreed_pwr->hs_rate); - return 0; -} - -static void ufs_hisi_set_dev_cap(struct ufs_hisi_dev_params *hisi_param) +static void ufs_hisi_set_dev_cap(struct ufs_dev_params *hisi_param) { hisi_param->rx_lanes = UFS_HISI_LIMIT_NUM_LANES_RX; hisi_param->tx_lanes = UFS_HISI_LIMIT_NUM_LANES_TX; @@ -477,7 +376,7 @@ static int ufs_hisi_pwr_change_notify(struct ufs_hba *hba, struct ufs_pa_layer_attr *dev_max_params, struct ufs_pa_layer_attr *dev_req_params) { - struct ufs_hisi_dev_params ufs_hisi_cap; + struct ufs_dev_params ufs_hisi_cap; int ret = 0; if (!dev_req_params) { @@ -490,8 +389,8 @@ static int ufs_hisi_pwr_change_notify(struct ufs_hba *hba, switch (status) { case PRE_CHANGE: ufs_hisi_set_dev_cap(&ufs_hisi_cap); - ret = ufs_hisi_get_pwr_dev_param( - &ufs_hisi_cap, dev_max_params, dev_req_params); + ret = ufshcd_get_pwr_dev_param(&ufs_hisi_cap, + dev_max_params, dev_req_params); if (ret) { dev_err(hba->dev, "%s: failed to determine capabilities\n", __func__); -- 2.45.2