@@ -5,7 +5,10 @@ obj-$(CONFIG_PHY_QCOM_EDP) += phy-qcom-edp.o
obj-$(CONFIG_PHY_QCOM_IPQ4019_USB) += phy-qcom-ipq4019-usb.o
obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA) += phy-qcom-ipq806x-sata.o
obj-$(CONFIG_PHY_QCOM_PCIE2) += phy-qcom-pcie2.o
-obj-$(CONFIG_PHY_QCOM_QMP) += phy-qcom-qmp.o
+obj-$(CONFIG_PHY_QCOM_QMP) += \
+ phy-qcom-qmp-lib.o \
+ phy-qcom-qmp.o
+
obj-$(CONFIG_PHY_QCOM_QUSB2) += phy-qcom-qusb2.o
obj-$(CONFIG_PHY_QCOM_USB_HS) += phy-qcom-usb-hs.o
obj-$(CONFIG_PHY_QCOM_USB_HSIC) += phy-qcom-usb-hsic.o
new file mode 100644
@@ -0,0 +1,417 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+
+#include <dt-bindings/phy/phy.h>
+
+#include "phy-qcom-qmp.h"
+#include "phy-qcom-qmp-lib.h"
+
+int qcom_qmp_phy_common_init(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg)
+{
+ struct qcom_qmp *qmp = qphy->qmp;
+ int ret;
+
+ dev_vdbg(qmp->dev, "Initializing QMP phy\n");
+
+ /* turn on regulator supplies */
+ ret = regulator_bulk_enable(cfg->num_vregs, qmp->vregs);
+ if (ret) {
+ dev_err(qmp->dev, "failed to enable regulators, err=%d\n", ret);
+ return ret;
+ }
+
+ ret = reset_control_bulk_assert(cfg->num_resets, qmp->resets);
+ if (ret) {
+ dev_err(qmp->dev, "reset assert failed\n");
+ goto err_disable_regulators;
+ }
+
+ ret = reset_control_bulk_deassert(cfg->num_resets, qmp->resets);
+ if (ret) {
+ dev_err(qmp->dev, "reset deassert failed\n");
+ goto err_disable_regulators;
+ }
+
+ ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks);
+ if (ret)
+ goto err_assert_reset;
+
+ return 0;
+
+err_assert_reset:
+ reset_control_bulk_assert(cfg->num_resets, qmp->resets);
+err_disable_regulators:
+ regulator_bulk_disable(cfg->num_vregs, qmp->vregs);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_common_init);
+
+void qcom_qmp_phy_common_exit(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg)
+{
+ struct qcom_qmp *qmp = qphy->qmp;
+
+ reset_control_bulk_assert(cfg->num_resets, qmp->resets);
+
+ clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks);
+
+ regulator_bulk_disable(cfg->num_vregs, qmp->vregs);
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_common_exit);
+
+void qcom_qmp_phy_dp_com_init(void __iomem *dp_com)
+{
+ qphy_setbits(dp_com, QPHY_V3_DP_COM_POWER_DOWN_CTRL,
+ SW_PWRDN);
+ /* override hardware control for reset of qmp phy */
+ qphy_setbits(dp_com, QPHY_V3_DP_COM_RESET_OVRD_CTRL,
+ SW_DPPHY_RESET_MUX | SW_DPPHY_RESET |
+ SW_USB3PHY_RESET_MUX | SW_USB3PHY_RESET);
+
+ /* Default type-c orientation, i.e CC1 */
+ qphy_setbits(dp_com, QPHY_V3_DP_COM_TYPEC_CTRL, 0x02);
+
+ qphy_setbits(dp_com, QPHY_V3_DP_COM_PHY_MODE_CTRL,
+ USB3_MODE | DP_MODE);
+
+ /* bring both QMP USB and QMP DP PHYs PCS block out of reset */
+ qphy_clrbits(dp_com, QPHY_V3_DP_COM_RESET_OVRD_CTRL,
+ SW_DPPHY_RESET_MUX | SW_DPPHY_RESET |
+ SW_USB3PHY_RESET_MUX | SW_USB3PHY_RESET);
+
+ qphy_clrbits(dp_com, QPHY_V3_DP_COM_SWI_CTRL, 0x03);
+ qphy_clrbits(dp_com, QPHY_V3_DP_COM_SW_RESET, SW_RESET);
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_dp_com_init);
+
+void qcom_qmp_phy_pwrup(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg)
+{
+ void __iomem *pcs = qphy->pcs;
+
+ if (cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL])
+ qphy_setbits(pcs,
+ cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
+ cfg->pwrdn_ctrl);
+ else
+ qphy_setbits(pcs, QPHY_POWER_DOWN_CONTROL,
+ cfg->pwrdn_ctrl);
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_pwrup);
+
+int qcom_qmp_phy_power_on(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg,
+ bool sw_reset)
+{
+ struct qcom_qmp *qmp = qphy->qmp;
+ void __iomem *pcs = qphy->pcs;
+ void __iomem *status;
+ unsigned int val, mask, ready;
+ int ret;
+
+ /* Pull PHY out of reset state */
+ if (sw_reset)
+ qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
+
+ /* start SerDes and Phy-Coding-Sublayer */
+ qphy_setbits(pcs, cfg->regs[QPHY_START_CTRL], cfg->start_ctrl);
+
+ if (cfg->type == PHY_TYPE_UFS)
+ status = pcs + cfg->regs[QPHY_PCS_READY_STATUS];
+ else
+ status = pcs + cfg->regs[QPHY_PCS_STATUS];
+
+ mask = cfg->phy_status;
+ ready = cfg->phy_status_active_high ? mask : 0;
+
+ ret = readl_poll_timeout(status, val, (val & mask) == ready, 10,
+ PHY_INIT_COMPLETE_TIMEOUT);
+ if (ret) {
+ dev_err(qmp->dev, "phy initialization timed-out\n");
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_power_on);
+
+void qcom_qmp_phy_power_off(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg, bool sw_reset)
+{
+ /* PHY reset */
+ if (sw_reset)
+ qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
+
+ /* stop SerDes and Phy-Coding-Sublayer */
+ qphy_clrbits(qphy->pcs, cfg->regs[QPHY_START_CTRL], cfg->start_ctrl);
+
+ /* Put PHY into POWER DOWN state: active low */
+ if (cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL]) {
+ qphy_clrbits(qphy->pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL],
+ cfg->pwrdn_ctrl);
+ } else {
+ qphy_clrbits(qphy->pcs, QPHY_POWER_DOWN_CONTROL,
+ cfg->pwrdn_ctrl);
+ }
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_power_off);
+
+int qcom_qmp_phy_set_mode(struct phy *phy, enum phy_mode mode, int submode)
+{
+ struct qmp_phy *qphy = phy_get_drvdata(phy);
+
+ qphy->mode = mode;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_set_mode);
+
+static void phy_clk_release_provider(void *res)
+{
+ of_clk_del_provider(res);
+}
+
+/*
+ * Register a fixed rate pipe clock.
+ *
+ * The <s>_pipe_clksrc generated by PHY goes to the GCC that gate
+ * controls it. The <s>_pipe_clk coming out of the GCC is requested
+ * by the PHY driver for its operations.
+ * We register the <s>_pipe_clksrc here. The gcc driver takes care
+ * of assigning this <s>_pipe_clksrc as parent to <s>_pipe_clk.
+ * Below picture shows this relationship.
+ *
+ * +---------------+
+ * | PHY block |<<---------------------------------------+
+ * | | |
+ * | +-------+ | +-----+ |
+ * I/P---^-->| PLL |---^--->pipe_clksrc--->| GCC |--->pipe_clk---+
+ * clk | +-------+ | +-----+
+ * +---------------+
+ */
+int qcom_qmp_phy_pipe_clk_register(struct qcom_qmp *qmp, struct device_node *np)
+{
+ struct clk_fixed_rate *fixed;
+ struct clk_init_data init = { };
+ int ret;
+
+ ret = of_property_read_string(np, "clock-output-names", &init.name);
+ if (ret) {
+ dev_err(qmp->dev, "%pOFn: No clock-output-names\n", np);
+ return ret;
+ }
+
+ fixed = devm_kzalloc(qmp->dev, sizeof(*fixed), GFP_KERNEL);
+ if (!fixed)
+ return -ENOMEM;
+
+ init.ops = &clk_fixed_rate_ops;
+
+ /* controllers using QMP phys use 125MHz pipe clock interface */
+ fixed->fixed_rate = 125000000;
+ fixed->hw.init = &init;
+
+ ret = devm_clk_hw_register(qmp->dev, &fixed->hw);
+ if (ret)
+ return ret;
+
+ ret = of_clk_add_hw_provider(np, of_clk_hw_simple_get, &fixed->hw);
+ if (ret)
+ return ret;
+
+ /*
+ * Roll a devm action because the clock provider is the child node, but
+ * the child node is not actually a device.
+ */
+ return devm_add_action_or_reset(qmp->dev, phy_clk_release_provider, np);
+}
+
+
+int qcom_qmp_phy_init(struct device *dev, struct device_node *np,
+ struct qmp_phy *qphy,
+ void __iomem *serdes, const struct qmp_phy_cfg *cfg)
+{
+ qphy->serdes = serdes;
+ /*
+ * Get memory resources for each phy lane:
+ * 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 (!qphy->tx)
+ return -ENOMEM;
+
+ qphy->rx = devm_of_iomap(dev, np, 1, NULL);
+ if (!qphy->rx)
+ return -ENOMEM;
+
+ qphy->pcs = devm_of_iomap(dev, np, 2, NULL);
+ if (!qphy->pcs)
+ return -ENOMEM;
+
+ /*
+ * If this is a dual-lane PHY, then there should be registers for the
+ * second lane. Some old device trees did not specify this, so fall
+ * back to old legacy behavior of assuming they can be reached at an
+ * offset from the first lane.
+ */
+ if (cfg->is_dual_lane_phy) {
+ qphy->tx2 = devm_of_iomap(dev, np, 3, NULL);
+ qphy->rx2 = devm_of_iomap(dev, np, 4, NULL);
+ if (!qphy->tx2 || !qphy->rx2) {
+ dev_warn(dev,
+ "Underspecified device tree, falling back to legacy register regions\n");
+
+ /* In the old version, pcs_misc is at index 3. */
+ qphy->pcs_misc = qphy->tx2;
+ qphy->tx2 = qphy->tx + QMP_PHY_LEGACY_LANE_STRIDE;
+ qphy->rx2 = qphy->rx + QMP_PHY_LEGACY_LANE_STRIDE;
+
+ } else {
+ qphy->pcs_misc = devm_of_iomap(dev, np, 5, NULL);
+ }
+
+ } else {
+ qphy->pcs_misc = devm_of_iomap(dev, np, 3, NULL);
+ }
+
+ if (!qphy->pcs_misc)
+ dev_vdbg(dev, "PHY pcs_misc-reg not used\n");
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_init);
+
+int qcom_qmp_phy_setup(struct device *dev, struct device_node *np, int id,
+ struct qmp_phy *qphy, const struct phy_ops *ops)
+{
+ struct qcom_qmp *qmp = dev_get_drvdata(dev);
+ struct phy *generic_phy;
+ int ret;
+
+ generic_phy = devm_phy_create(dev, np, ops);
+ if (IS_ERR(generic_phy)) {
+ ret = PTR_ERR(generic_phy);
+ dev_err(dev, "failed to create qphy_ufs %d\n", ret);
+ return ret;
+ }
+
+ qphy->phy = generic_phy;
+ qphy->index = id;
+ qphy->qmp = qmp;
+ qmp->phys[id] = qphy;
+ phy_set_drvdata(generic_phy, qphy);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_setup);
+
+static int qcom_qmp_phy_vreg_init(struct device *dev, const struct qmp_phy_cfg *cfg)
+{
+ struct qcom_qmp *qmp = dev_get_drvdata(dev);
+ int num = cfg->num_vregs;
+ int i;
+
+ qmp->vregs = devm_kcalloc(dev, num, sizeof(*qmp->vregs), GFP_KERNEL);
+ if (!qmp->vregs)
+ return -ENOMEM;
+
+ for (i = 0; i < num; i++)
+ qmp->vregs[i].supply = cfg->vreg_list[i];
+
+ return devm_regulator_bulk_get(dev, num, qmp->vregs);
+}
+
+static int qcom_qmp_phy_reset_init(struct device *dev, const struct qmp_phy_cfg *cfg)
+{
+ struct qcom_qmp *qmp = dev_get_drvdata(dev);
+ int i;
+ int ret;
+
+ qmp->resets = devm_kcalloc(dev, cfg->num_resets,
+ sizeof(*qmp->resets), GFP_KERNEL);
+ if (!qmp->resets)
+ return -ENOMEM;
+
+ for (i = 0; i < cfg->num_resets; i++)
+ qmp->resets[i].id = cfg->reset_list[i];
+
+ ret = devm_reset_control_bulk_get_exclusive(dev, cfg->num_resets, qmp->resets);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to get resets\n");
+
+ return 0;
+}
+
+static int qcom_qmp_phy_clk_init(struct device *dev, const struct qmp_phy_cfg *cfg)
+{
+ struct qcom_qmp *qmp = dev_get_drvdata(dev);
+ int num = cfg->num_clks;
+ int i;
+
+ qmp->clks = devm_kcalloc(dev, num, sizeof(*qmp->clks), GFP_KERNEL);
+ if (!qmp->clks)
+ return -ENOMEM;
+
+ for (i = 0; i < num; i++)
+ qmp->clks[i].id = cfg->clk_list[i];
+
+ return devm_clk_bulk_get(dev, num, qmp->clks);
+}
+
+int qcom_qmp_phy_common_probe(struct platform_device *pdev, const struct qmp_phy_cfg *cfg, int expected_phys)
+{
+ struct qcom_qmp *qmp;
+ struct device *dev = &pdev->dev;
+ int num;
+ int ret;
+
+ qmp = devm_kzalloc(dev, sizeof(*qmp), GFP_KERNEL);
+ if (!qmp)
+ return -ENOMEM;
+
+ qmp->dev = dev;
+ dev_set_drvdata(dev, qmp);
+
+ mutex_init(&qmp->phy_mutex);
+
+ ret = qcom_qmp_phy_clk_init(dev, cfg);
+ if (ret)
+ return ret;
+
+ ret = qcom_qmp_phy_reset_init(dev, cfg);
+ if (ret)
+ return ret;
+
+ ret = qcom_qmp_phy_vreg_init(dev, cfg);
+ if (ret)
+ return dev_err_probe(dev, ret, "failed to get regulator supplies\n");
+
+ num = of_get_available_child_count(dev->of_node);
+ /* do we have a rogue child node ? */
+ if (num > expected_phys)
+ return -EINVAL;
+
+ qmp->phys = devm_kcalloc(dev, num, sizeof(*qmp->phys), GFP_KERNEL);
+ if (!qmp->phys)
+ return -ENOMEM;
+
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+ /*
+ * Prevent runtime pm from being ON by default. Users can enable
+ * it using power/control in sysfs.
+ */
+ pm_runtime_forbid(dev);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_qmp_phy_common_probe);
new file mode 100644
@@ -0,0 +1,300 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef QCOM_PHY_QMP_LIB_H_
+#define QCOM_PHY_QMP_LIB_H_
+
+#include <linux/io.h>
+#include <linux/phy/phy.h>
+
+/* QPHY_SW_RESET bit */
+#define SW_RESET BIT(0)
+/* QPHY_POWER_DOWN_CONTROL */
+#define SW_PWRDN BIT(0)
+#define REFCLK_DRV_DSBL BIT(1)
+/* QPHY_START_CONTROL bits */
+#define SERDES_START BIT(0)
+#define PCS_START BIT(1)
+#define PLL_READY_GATE_EN BIT(3)
+/* QPHY_PCS_STATUS bit */
+#define PHYSTATUS BIT(6)
+#define PHYSTATUS_4_20 BIT(7)
+/* QPHY_PCS_READY_STATUS & QPHY_COM_PCS_READY_STATUS bit */
+#define PCS_READY BIT(0)
+
+/* QPHY_V3_DP_COM_RESET_OVRD_CTRL register bits */
+/* DP PHY soft reset */
+#define SW_DPPHY_RESET BIT(0)
+/* mux to select DP PHY reset control, 0:HW control, 1: software reset */
+#define SW_DPPHY_RESET_MUX BIT(1)
+/* USB3 PHY soft reset */
+#define SW_USB3PHY_RESET BIT(2)
+/* mux to select USB3 PHY reset control, 0:HW control, 1: software reset */
+#define SW_USB3PHY_RESET_MUX BIT(3)
+
+/* QPHY_V3_DP_COM_PHY_MODE_CTRL register bits */
+#define USB3_MODE BIT(0) /* enables USB3 mode */
+#define DP_MODE BIT(1) /* enables DP mode */
+
+/* QPHY_PCS_AUTONOMOUS_MODE_CTRL register bits */
+#define ARCVR_DTCT_EN BIT(0)
+#define ALFPS_DTCT_EN BIT(1)
+#define ARCVR_DTCT_EVENT_SEL BIT(4)
+
+/* QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR register bits */
+#define IRQ_CLEAR BIT(0)
+
+/* QPHY_PCS_LFPS_RXTERM_IRQ_STATUS register bits */
+#define RCVR_DETECT BIT(0)
+
+/* QPHY_V3_PCS_MISC_CLAMP_ENABLE register bits */
+#define CLAMP_EN BIT(0) /* enables i/o clamp_n */
+
+#define PHY_INIT_COMPLETE_TIMEOUT 10000
+#define POWER_DOWN_DELAY_US_MIN 10
+#define POWER_DOWN_DELAY_US_MAX 11
+
+#define MAX_PROP_NAME 32
+
+/* Define the assumed distance between lanes for underspecified device trees. */
+#define QMP_PHY_LEGACY_LANE_STRIDE 0x400
+
+struct qmp_phy_init_tbl {
+ unsigned int offset;
+ unsigned int val;
+ /*
+ * register part of layout ?
+ * if yes, then offset gives index in the reg-layout
+ */
+ bool in_layout;
+ /*
+ * mask of lanes for which this register is written
+ * for cases when second lane needs different values
+ */
+ u8 lane_mask;
+};
+
+#define QMP_PHY_INIT_CFG(o, v) \
+ { \
+ .offset = o, \
+ .val = v, \
+ .lane_mask = 0xff, \
+ }
+
+#define QMP_PHY_INIT_CFG_L(o, v) \
+ { \
+ .offset = o, \
+ .val = v, \
+ .in_layout = true, \
+ .lane_mask = 0xff, \
+ }
+
+#define QMP_PHY_INIT_CFG_LANE(o, v, l) \
+ { \
+ .offset = o, \
+ .val = v, \
+ .lane_mask = l, \
+ }
+
+/* set of registers with offsets different per-PHY */
+enum qphy_reg_layout {
+ /* Common block control registers */
+ QPHY_COM_SW_RESET,
+ QPHY_COM_POWER_DOWN_CONTROL,
+ QPHY_COM_START_CONTROL,
+ QPHY_COM_PCS_READY_STATUS,
+ /* PCS registers */
+ QPHY_PLL_LOCK_CHK_DLY_TIME,
+ QPHY_FLL_CNTRL1,
+ QPHY_FLL_CNTRL2,
+ QPHY_FLL_CNT_VAL_L,
+ QPHY_FLL_CNT_VAL_H_TOL,
+ QPHY_FLL_MAN_CODE,
+ QPHY_SW_RESET,
+ QPHY_START_CTRL,
+ QPHY_PCS_READY_STATUS,
+ QPHY_PCS_STATUS,
+ QPHY_PCS_AUTONOMOUS_MODE_CTRL,
+ QPHY_PCS_LFPS_RXTERM_IRQ_CLEAR,
+ QPHY_PCS_LFPS_RXTERM_IRQ_STATUS,
+ QPHY_PCS_POWER_DOWN_CONTROL,
+ /* Keep last to ensure regs_layout arrays are properly initialized */
+ QPHY_LAYOUT_SIZE
+};
+
+static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val)
+{
+ u32 reg;
+
+ reg = readl(base + offset);
+ reg |= val;
+ writel(reg, base + offset);
+
+ /* ensure that above write is through */
+ readl(base + offset);
+}
+
+static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
+{
+ u32 reg;
+
+ reg = readl(base + offset);
+ reg &= ~val;
+ writel(reg, base + offset);
+
+ /* ensure that above write is through */
+ readl(base + offset);
+}
+
+/* struct qmp_phy_cfg - per-PHY initialization config */
+struct qmp_phy_cfg {
+ /* phy-type - PCIE/UFS/USB */
+ unsigned int type;
+ /* number of lanes provided by phy */
+ int nlanes;
+
+ /* Init sequence for PHY blocks - serdes, tx, rx, pcs */
+ const struct qmp_phy_init_tbl *serdes_tbl;
+ int serdes_tbl_num;
+ const struct qmp_phy_init_tbl *tx_tbl;
+ int tx_tbl_num;
+ const struct qmp_phy_init_tbl *rx_tbl;
+ int rx_tbl_num;
+ const struct qmp_phy_init_tbl *pcs_tbl;
+ int pcs_tbl_num;
+
+ /* clock ids to be requested */
+ const char * const *clk_list;
+ int num_clks;
+ /* resets to be requested */
+ const char * const *reset_list;
+ int num_resets;
+ /* regulators to be requested */
+ const char * const *vreg_list;
+ int num_vregs;
+
+ /* array of registers with different offsets */
+ const unsigned int *regs;
+
+ unsigned int start_ctrl;
+ unsigned int pwrdn_ctrl;
+ /*
+ * Bit offset of PHYSTATUS in QPHY_PCS_STATUS register
+ * for UFS PHYs this is PCS_READY in QPHY_PCS_READY_STATUS
+ */
+ unsigned int phy_status;
+ bool phy_status_active_high; /* true for UFS PHYs */
+
+ /* true, if PHY has secondary tx/rx lanes to be configured */
+ bool is_dual_lane_phy;
+};
+
+/**
+ * struct qmp_phy - per-lane phy descriptor
+ *
+ * @phy: generic phy
+ * @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
+ * @index: lane index
+ * @qmp: QMP phy to which this lane belongs
+ * @mode: current PHY mode
+ */
+struct qmp_phy {
+ struct phy *phy;
+ void __iomem *serdes;
+ void __iomem *tx;
+ void __iomem *rx;
+ void __iomem *pcs;
+ void __iomem *tx2;
+ void __iomem *rx2;
+ void __iomem *pcs_misc;
+ unsigned int index;
+ struct qcom_qmp *qmp;
+ enum phy_mode mode;
+};
+
+/**
+ * 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
+ * @phy_mutex: mutex lock for PHY common block initialization
+ * @init_count: phy common block initialization count
+ */
+struct qcom_qmp {
+ struct device *dev;
+
+ struct clk_bulk_data *clks;
+ struct reset_control_bulk_data *resets;
+ struct regulator_bulk_data *vregs;
+
+ struct qmp_phy **phys;
+
+ struct mutex phy_mutex;
+ int init_count;
+};
+
+static inline void qcom_qmp_phy_configure_lane(void __iomem *base,
+ const unsigned int *regs,
+ const struct qmp_phy_init_tbl tbl[],
+ int num,
+ u8 lane_mask)
+{
+ int i;
+ const struct qmp_phy_init_tbl *t = tbl;
+
+ if (!t)
+ return;
+
+ for (i = 0; i < num; i++, t++) {
+ if (!(t->lane_mask & lane_mask))
+ continue;
+
+ if (t->in_layout)
+ writel(t->val, base + regs[t->offset]);
+ else
+ writel(t->val, base + t->offset);
+ }
+}
+
+static inline void qcom_qmp_phy_configure(void __iomem *base,
+ const unsigned int *regs,
+ const struct qmp_phy_init_tbl tbl[],
+ int num)
+{
+ qcom_qmp_phy_configure_lane(base, regs, tbl, num, 0xff);
+}
+
+int qcom_qmp_phy_common_init(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg);
+void qcom_qmp_phy_common_exit(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg);
+
+void qcom_qmp_phy_dp_com_init(void __iomem *dp_com);
+void qcom_qmp_phy_pwrup(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg);
+int qcom_qmp_phy_power_on(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg, bool sw_reset);
+void qcom_qmp_phy_power_off(struct qmp_phy *qphy, const struct qmp_phy_cfg *cfg, bool sw_reset);
+
+int qcom_qmp_phy_set_mode(struct phy *phy, enum phy_mode mode, int submode);
+int qcom_qmp_phy_pipe_clk_register(struct qcom_qmp *qmp, struct device_node *np);
+
+int qcom_qmp_phy_init(struct device *dev, struct device_node *np,
+ struct qmp_phy *qphy,
+ void __iomem *serdes, const struct qmp_phy_cfg *cfg);
+int qcom_qmp_phy_setup(struct device *dev, struct device_node *np, int id,
+ struct qmp_phy *qphy, const struct phy_ops *ops);
+
+struct platform_device;
+int qcom_qmp_phy_common_probe(struct platform_device *pdev, const struct qmp_phy_cfg *cfg, int expected_phys);
+
+#endif
Add a file containing common functions to be used by the split QMP driver. This is mostly a cut from the original QMP driver with two major differences: - use reset_controller_bulk interface - change phy_status handling to accomodate UFS poweron schema. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/phy/qualcomm/Makefile | 5 +- drivers/phy/qualcomm/phy-qcom-qmp-lib.c | 417 ++++++++++++++++++++++++ drivers/phy/qualcomm/phy-qcom-qmp-lib.h | 300 +++++++++++++++++ 3 files changed, 721 insertions(+), 1 deletion(-) create mode 100644 drivers/phy/qualcomm/phy-qcom-qmp-lib.c create mode 100644 drivers/phy/qualcomm/phy-qcom-qmp-lib.h