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scsi: ufs: ufs-qcom: Setup host power mode during init

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Setup host power mode and its limitations during UFS host driver init to
avoid repetitive work during every power mode change.

Acked-by: Andrew Halaney <ahalaney@redhat.com>
Reviewed-by: Nitin Rawat <quic_nitirawa@quicinc.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Co-developed-by: Bao D. Nguyen <quic_nguyenb@quicinc.com>
Signed-off-by: Bao D. Nguyen <quic_nguyenb@quicinc.com>
Signed-off-by: Can Guo <quic_cang@quicinc.com>
Link: https://lore.kernel.org/r/1701520577-31163-4-git-send-email-quic_cang@quicinc.com
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-QRD
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Can Guo 2023-12-02 04:36:09 -08:00 committed by Martin K. Petersen
parent dc604b4c9d
commit 55820a7f2c
2 changed files with 15 additions and 7 deletions
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21
drivers/ufs/host/ufs-qcom.c
View File

@ -898,7 +898,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
struct ufs_pa_layer_attr *dev_req_params)
{
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
struct ufs_host_params host_params;
struct ufs_host_params *host_params = &host->host_params;
int ret = 0;
if (!dev_req_params) {
@ -908,12 +908,7 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba,
switch (status) {
case PRE_CHANGE:
ufshcd_init_host_params(&host_params);
/* This driver only supports symmetic gear setting i.e., hs_tx_gear == hs_rx_gear */
host_params.hs_tx_gear = host_params.hs_rx_gear = ufs_qcom_get_hs_gear(hba);
ret = ufshcd_negotiate_pwr_params(&host_params, dev_max_params, dev_req_params);
ret = ufshcd_negotiate_pwr_params(host_params, dev_max_params, dev_req_params);
if (ret) {
dev_err(hba->dev, "%s: failed to determine capabilities\n",
__func__);
@ -1048,6 +1043,17 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
hba->quirks |= UFSHCD_QUIRK_REINIT_AFTER_MAX_GEAR_SWITCH;
}
static void ufs_qcom_set_host_params(struct ufs_hba *hba)
{
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
struct ufs_host_params *host_params = &host->host_params;
ufshcd_init_host_params(host_params);
/* This driver only supports symmetic gear setting i.e., hs_tx_gear == hs_rx_gear */
host_params->hs_tx_gear = host_params->hs_rx_gear = ufs_qcom_get_hs_gear(hba);
}
static void ufs_qcom_set_caps(struct ufs_hba *hba)
{
struct ufs_qcom_host *host = ufshcd_get_variant(hba);
@ -1272,6 +1278,7 @@ static int ufs_qcom_init(struct ufs_hba *hba)
ufs_qcom_set_caps(hba);
ufs_qcom_advertise_quirks(hba);
ufs_qcom_set_host_params(hba);
err = ufs_qcom_ice_init(host);
if (err)

1
drivers/ufs/host/ufs-qcom.h
View File

@ -238,6 +238,7 @@ struct ufs_qcom_host {
struct gpio_desc *device_reset;
struct ufs_host_params host_params;
u32 phy_gear;
bool esi_enabled;