Commit 65858014 authored by Stanley Chu's avatar Stanley Chu Committed by Martin K. Petersen
Browse files

scsi: ufs: Introduce device parameter initialization function 

Nowadays many vendors initialize their device parameters in their own
vendor drivers. The initialization code is almost the same as well as the
pre-defined definitions. Introduce a common device parameter initialization
function which assign the most common initial values. With this function,
we could remove those duplicated codes in vendor drivers.

Link: https://lore.kernel.org/r/20201116065054.7658-3-stanley.chu@mediatek.com


Reviewed-by: default avatarBean Huo <beanhuo@micron.com>
Signed-off-by: default avatarStanley Chu <stanley.chu@mediatek.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 54770cbe

drivers/scsi/ufs/ufshcd-pltfrm.c

+17 −0
Original line number Diff line number Diff line
@@ -354,6 +354,23 @@ int ufshcd_get_pwr_dev_param(struct ufs_dev_params *pltfrm_param, 
}

EXPORT_SYMBOL_GPL(ufshcd_get_pwr_dev_param);



void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param)

{

	dev_param->tx_lanes = 2;

	dev_param->rx_lanes = 2;

	dev_param->hs_rx_gear = UFS_HS_G3;

	dev_param->hs_tx_gear = UFS_HS_G3;

	dev_param->pwm_rx_gear = UFS_PWM_G4;

	dev_param->pwm_tx_gear = UFS_PWM_G4;

	dev_param->rx_pwr_pwm = SLOW_MODE;

	dev_param->tx_pwr_pwm = SLOW_MODE;

	dev_param->rx_pwr_hs = FAST_MODE;

	dev_param->tx_pwr_hs = FAST_MODE;

	dev_param->hs_rate = PA_HS_MODE_B;

	dev_param->desired_working_mode = UFS_HS_MODE;

}

EXPORT_SYMBOL_GPL(ufshcd_init_pwr_dev_param);



/**

 * ufshcd_pltfrm_init - probe routine of the driver

 * @pdev: pointer to Platform device handle

drivers/scsi/ufs/ufshcd-pltfrm.h

+1 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ struct ufs_dev_params { 
int ufshcd_get_pwr_dev_param(struct ufs_dev_params *dev_param,

			     struct ufs_pa_layer_attr *dev_max,

			     struct ufs_pa_layer_attr *agreed_pwr);

void ufshcd_init_pwr_dev_param(struct ufs_dev_params *dev_param);

int ufshcd_pltfrm_init(struct platform_device *pdev,

		       const struct ufs_hba_variant_ops *vops);

void ufshcd_pltfrm_shutdown(struct platform_device *pdev);