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Commit a36032db authored by Johan Hovold's avatar Johan Hovold Committed by Vinod Koul
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phy: qcom-qmp-ufs: merge driver data 

The UFS QMP PHY driver only manages a single PHY so merge the old
qcom_qmp and qmp_phy structures and drop the PHY array.
Signed-off-by: default avatarJohan Hovold <johan+linaro@kernel.org>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20221024090041.19574-3-johan+linaro@kernel.orgSigned-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent d907774e
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Showing with 63 additions and 108 deletions
drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
View file @ a36032db
......@@ -548,54 +548,24 @@ struct qmp_phy_cfg {
bool no_pcs_sw_reset;
};
/**
* struct qmp_phy - per-lane phy descriptor
*
* @phy: generic phy
* @cfg: phy specific configuration
* @serdes: iomapped memory space for phy's serdes (i.e. PLL)
* @tx: iomapped memory space for lane's tx
* @rx: iomapped memory space for lane's rx
* @pcs: iomapped memory space for lane's pcs
* @tx2: iomapped memory space for second lane's tx (in dual lane PHYs)
* @rx2: iomapped memory space for second lane's rx (in dual lane PHYs)
* @pcs_misc: iomapped memory space for lane's pcs_misc
* @qmp: QMP phy to which this lane belongs
*/
struct qmp_phy {
struct phy *phy;
struct qmp_ufs {
struct device *dev;
const struct qmp_phy_cfg *cfg;
void __iomem *serdes;
void __iomem *pcs;
void __iomem *pcs_misc;
void __iomem *tx;
void __iomem *rx;
void __iomem *pcs;
void __iomem *tx2;
void __iomem *rx2;
void __iomem *pcs_misc;
struct qcom_qmp *qmp;
};
/**
* struct qcom_qmp - structure holding QMP phy block attributes
*
* @dev: device
*
* @clks: array of clocks required by phy
* @resets: array of resets required by phy
* @vregs: regulator supplies bulk data
*
* @phys: array of per-lane phy descriptors
* @ufs_reset: optional UFS PHY reset handle
*/
struct qcom_qmp {
struct device *dev;
struct clk_bulk_data *clks;
struct regulator_bulk_data *vregs;
struct qmp_phy **phys;
struct reset_control *ufs_reset;
struct phy *phy;
};
static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val)
......@@ -782,10 +752,10 @@ static void qmp_ufs_configure(void __iomem *base,
qmp_ufs_configure_lane(base, tbl, num, 0xff);
}
static int qmp_ufs_serdes_init(struct qmp_phy *qphy)
static int qmp_ufs_serdes_init(struct qmp_ufs *qmp)
{
const struct qmp_phy_cfg *cfg = qphy->cfg;
void __iomem *serdes = qphy->serdes;
const struct qmp_phy_cfg *cfg = qmp->cfg;
void __iomem *serdes = qmp->serdes;
const struct qmp_phy_init_tbl *serdes_tbl = cfg->serdes_tbl;
int serdes_tbl_num = cfg->serdes_tbl_num;
......@@ -794,11 +764,10 @@ static int qmp_ufs_serdes_init(struct qmp_phy *qphy)
return 0;
}
static int qmp_ufs_com_init(struct qmp_phy *qphy)
static int qmp_ufs_com_init(struct qmp_ufs *qmp)
{
struct qcom_qmp *qmp = qphy->qmp;
const struct qmp_phy_cfg *cfg = qphy->cfg;
void __iomem *pcs = qphy->pcs;
const struct qmp_phy_cfg *cfg = qmp->cfg;
void __iomem *pcs = qmp->pcs;
int ret;
ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs);
......@@ -821,10 +790,9 @@ static int qmp_ufs_com_init(struct qmp_phy *qphy)
return ret;
}
static int qmp_ufs_com_exit(struct qmp_phy *qphy)
static int qmp_ufs_com_exit(struct qmp_ufs *qmp)
{
struct qcom_qmp *qmp = qphy->qmp;
const struct qmp_phy_cfg *cfg = qphy->cfg;
const struct qmp_phy_cfg *cfg = qmp->cfg;
reset_control_assert(qmp->ufs_reset);
......@@ -837,9 +805,8 @@ static int qmp_ufs_com_exit(struct qmp_phy *qphy)
static int qmp_ufs_init(struct phy *phy)
{
struct qmp_phy *qphy = phy_get_drvdata(phy);
struct qcom_qmp *qmp = qphy->qmp;
const struct qmp_phy_cfg *cfg = qphy->cfg;
struct qmp_ufs *qmp = phy_get_drvdata(phy);
const struct qmp_phy_cfg *cfg = qmp->cfg;
int ret;
dev_vdbg(qmp->dev, "Initializing QMP phy\n");
......@@ -870,7 +837,7 @@ static int qmp_ufs_init(struct phy *phy)
return ret;
}
ret = qmp_ufs_com_init(qphy);
ret = qmp_ufs_com_init(qmp);
if (ret)
return ret;
......@@ -879,28 +846,27 @@ static int qmp_ufs_init(struct phy *phy)
static int qmp_ufs_power_on(struct phy *phy)
{
struct qmp_phy *qphy = phy_get_drvdata(phy);
struct qcom_qmp *qmp = qphy->qmp;
const struct qmp_phy_cfg *cfg = qphy->cfg;
void __iomem *tx = qphy->tx;
void __iomem *rx = qphy->rx;
void __iomem *pcs = qphy->pcs;
struct qmp_ufs *qmp = phy_get_drvdata(phy);
const struct qmp_phy_cfg *cfg = qmp->cfg;
void __iomem *tx = qmp->tx;
void __iomem *rx = qmp->rx;
void __iomem *pcs = qmp->pcs;
void __iomem *status;
unsigned int val;
int ret;
qmp_ufs_serdes_init(qphy);
qmp_ufs_serdes_init(qmp);
/* Tx, Rx, and PCS configurations */
qmp_ufs_configure_lane(tx, cfg->tx_tbl, cfg->tx_tbl_num, 1);
if (cfg->lanes >= 2)
qmp_ufs_configure_lane(qphy->tx2, cfg->tx_tbl, cfg->tx_tbl_num, 2);
qmp_ufs_configure_lane(qmp->tx2, cfg->tx_tbl, cfg->tx_tbl_num, 2);
qmp_ufs_configure_lane(rx, cfg->rx_tbl, cfg->rx_tbl_num, 1);
if (cfg->lanes >= 2)
qmp_ufs_configure_lane(qphy->rx2, cfg->rx_tbl, cfg->rx_tbl_num, 2);
qmp_ufs_configure_lane(qmp->rx2, cfg->rx_tbl, cfg->rx_tbl_num, 2);
qmp_ufs_configure(pcs, cfg->pcs_tbl, cfg->pcs_tbl_num);
......@@ -928,18 +894,18 @@ static int qmp_ufs_power_on(struct phy *phy)
static int qmp_ufs_power_off(struct phy *phy)
{
struct qmp_phy *qphy = phy_get_drvdata(phy);
const struct qmp_phy_cfg *cfg = qphy->cfg;
struct qmp_ufs *qmp = phy_get_drvdata(phy);
const struct qmp_phy_cfg *cfg = qmp->cfg;
/* PHY reset */
if (!cfg->no_pcs_sw_reset)
qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
qphy_setbits(qmp->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
/* stop SerDes */
qphy_clrbits(qphy->pcs, cfg->regs[QPHY_START_CTRL], SERDES_START);
qphy_clrbits(qmp->pcs, cfg->regs[QPHY_START_CTRL], SERDES_START);
/* Put PHY into POWER DOWN state: active low */
qphy_clrbits(qphy->pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
qphy_clrbits(qmp->pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
SW_PWRDN);
return 0;
......@@ -947,9 +913,9 @@ static int qmp_ufs_power_off(struct phy *phy)
static int qmp_ufs_exit(struct phy *phy)
{
struct qmp_phy *qphy = phy_get_drvdata(phy);
struct qmp_ufs *qmp = phy_get_drvdata(phy);
qmp_ufs_com_exit(qphy);
qmp_ufs_com_exit(qmp);
return 0;
}
......@@ -981,7 +947,7 @@ static int qmp_ufs_disable(struct phy *phy)
static int qmp_ufs_vreg_init(struct device *dev, const struct qmp_phy_cfg *cfg)
{
struct qcom_qmp *qmp = dev_get_drvdata(dev);
struct qmp_ufs *qmp = dev_get_drvdata(dev);
int num = cfg->num_vregs;
int i;
......@@ -997,7 +963,7 @@ static int qmp_ufs_vreg_init(struct device *dev, const struct qmp_phy_cfg *cfg)
static int qmp_ufs_clk_init(struct device *dev, const struct qmp_phy_cfg *cfg)
{
struct qcom_qmp *qmp = dev_get_drvdata(dev);
struct qmp_ufs *qmp = dev_get_drvdata(dev);
int num = cfg->num_clks;
int i;
......@@ -1017,78 +983,71 @@ static const struct phy_ops qcom_qmp_ufs_ops = {
.owner = THIS_MODULE,
};
static int qmp_ufs_create(struct device *dev, struct device_node *np, int id,
static int qmp_ufs_create(struct device *dev, struct device_node *np,
void __iomem *serdes, const struct qmp_phy_cfg *cfg)
{
struct qcom_qmp *qmp = dev_get_drvdata(dev);
struct qmp_ufs *qmp = dev_get_drvdata(dev);
struct phy *generic_phy;
struct qmp_phy *qphy;
int ret;
qphy = devm_kzalloc(dev, sizeof(*qphy), GFP_KERNEL);
if (!qphy)
return -ENOMEM;
qphy->cfg = cfg;
qphy->serdes = serdes;
qmp->cfg = cfg;
qmp->serdes = serdes;
/*
* Get memory resources for the PHY:
* Resources are indexed as: tx -> 0; rx -> 1; pcs -> 2.
* For dual lane PHYs: tx2 -> 3, rx2 -> 4, pcs_misc (optional) -> 5
* For single lane PHYs: pcs_misc (optional) -> 3.
*/
qphy->tx = devm_of_iomap(dev, np, 0, NULL);
if (IS_ERR(qphy->tx))
return PTR_ERR(qphy->tx);
qmp->tx = devm_of_iomap(dev, np, 0, NULL);
if (IS_ERR(qmp->tx))
return PTR_ERR(qmp->tx);
qphy->rx = devm_of_iomap(dev, np, 1, NULL);
if (IS_ERR(qphy->rx))
return PTR_ERR(qphy->rx);
qmp->rx = devm_of_iomap(dev, np, 1, NULL);
if (IS_ERR(qmp->rx))
return PTR_ERR(qmp->rx);
qphy->pcs = devm_of_iomap(dev, np, 2, NULL);
if (IS_ERR(qphy->pcs))
return PTR_ERR(qphy->pcs);
qmp->pcs = devm_of_iomap(dev, np, 2, NULL);
if (IS_ERR(qmp->pcs))
return PTR_ERR(qmp->pcs);
if (cfg->lanes >= 2) {
qphy->tx2 = devm_of_iomap(dev, np, 3, NULL);
if (IS_ERR(qphy->tx2))
return PTR_ERR(qphy->tx2);
qmp->tx2 = devm_of_iomap(dev, np, 3, NULL);
if (IS_ERR(qmp->tx2))
return PTR_ERR(qmp->tx2);
qphy->rx2 = devm_of_iomap(dev, np, 4, NULL);
if (IS_ERR(qphy->rx2))
return PTR_ERR(qphy->rx2);
qmp->rx2 = devm_of_iomap(dev, np, 4, NULL);
if (IS_ERR(qmp->rx2))
return PTR_ERR(qmp->rx2);
qphy->pcs_misc = devm_of_iomap(dev, np, 5, NULL);
qmp->pcs_misc = devm_of_iomap(dev, np, 5, NULL);
} else {
qphy->pcs_misc = devm_of_iomap(dev, np, 3, NULL);
qmp->pcs_misc = devm_of_iomap(dev, np, 3, NULL);
}
if (IS_ERR(qphy->pcs_misc))
if (IS_ERR(qmp->pcs_misc))
dev_vdbg(dev, "PHY pcs_misc-reg not used\n");
generic_phy = devm_phy_create(dev, np, &qcom_qmp_ufs_ops);
if (IS_ERR(generic_phy)) {
ret = PTR_ERR(generic_phy);
dev_err(dev, "failed to create qphy %d\n", ret);
dev_err(dev, "failed to create PHY: %d\n", ret);
return ret;
}
qphy->phy = generic_phy;
qphy->qmp = qmp;
qmp->phys[id] = qphy;
phy_set_drvdata(generic_phy, qphy);
qmp->phy = generic_phy;
phy_set_drvdata(generic_phy, qmp);
return 0;
}
static int qmp_ufs_probe(struct platform_device *pdev)
{
struct qcom_qmp *qmp;
struct device *dev = &pdev->dev;
struct device_node *child;
struct phy_provider *phy_provider;
void __iomem *serdes;
const struct qmp_phy_cfg *cfg = NULL;
struct qmp_ufs *qmp;
int num, id;
int ret;
......@@ -1120,14 +1079,10 @@ static int qmp_ufs_probe(struct platform_device *pdev)
if (num > 1)
return -EINVAL;
qmp->phys = devm_kcalloc(dev, num, sizeof(*qmp->phys), GFP_KERNEL);
if (!qmp->phys)
return -ENOMEM;
id = 0;
for_each_available_child_of_node(dev->of_node, child) {
/* Create per-lane phy */
ret = qmp_ufs_create(dev, child, id, serdes, cfg);
ret = qmp_ufs_create(dev, child, serdes, cfg);
if (ret) {
dev_err(dev, "failed to create lane%d phy, %d\n",
id, ret);
......
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