diff options
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 145 |
1 files changed, 134 insertions, 11 deletions
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c index b82bd0a221d6..77052c66cf70 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c @@ -20,7 +20,7 @@ #include <linux/reset.h> #include <linux/slab.h> -#include <dt-bindings/phy/phy.h> +#include <dt-bindings/phy/phy-qcom-qmp.h> #include "phy-qcom-qmp.h" @@ -798,7 +798,23 @@ static const u8 qmp_dp_v5_voltage_swing_hbr_rbr[4][4] = { struct qmp_combo; +struct qmp_combo_offsets { + u16 com; + u16 txa; + u16 rxa; + u16 txb; + u16 rxb; + u16 usb3_serdes; + u16 usb3_pcs_misc; + u16 usb3_pcs; + u16 usb3_pcs_usb; + u16 dp_serdes; + u16 dp_dp_phy; +}; + struct qmp_phy_cfg { + const struct qmp_combo_offsets *offsets; + /* Init sequence for PHY blocks - serdes, tx, rx, pcs */ const struct qmp_phy_init_tbl *serdes_tbl; int serdes_tbl_num; @@ -959,6 +975,20 @@ static const char * const sc7180_usb3phy_reset_l[] = { "phy", }; +static const struct qmp_combo_offsets qmp_combo_offsets_v5 = { + .com = 0x0000, + .txa = 0x0400, + .rxa = 0x0600, + .txb = 0x0a00, + .rxb = 0x0c00, + .usb3_serdes = 0x1000, + .usb3_pcs_misc = 0x1200, + .usb3_pcs = 0x1400, + .usb3_pcs_usb = 0x1700, + .dp_serdes = 0x2000, + .dp_dp_phy = 0x2200, +}; + static const struct qmp_phy_cfg sc7180_usb3dpphy_cfg = { .serdes_tbl = qmp_v3_usb3_serdes_tbl, .serdes_tbl_num = ARRAY_SIZE(qmp_v3_usb3_serdes_tbl), @@ -1098,6 +1128,8 @@ static const struct qmp_phy_cfg sc8180x_usb3dpphy_cfg = { }; static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = { + .offsets = &qmp_combo_offsets_v5, + .serdes_tbl = sc8280xp_usb43dp_serdes_tbl, .serdes_tbl_num = ARRAY_SIZE(sc8280xp_usb43dp_serdes_tbl), .tx_tbl = sc8280xp_usb43dp_tx_tbl, @@ -1138,7 +1170,6 @@ static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = { .vreg_list = qmp_phy_vreg_l, .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), .regs = qmp_v4_usb3phy_regs_layout, - .pcs_usb_offset = 0x300, }; static const struct qmp_phy_cfg sm8250_usb3dpphy_cfg = { @@ -2421,6 +2452,22 @@ static int phy_dp_clks_register(struct qmp_combo *qmp, struct device_node *np) return 0; } +static struct clk_hw *qmp_combo_clk_hw_get(struct of_phandle_args *clkspec, void *data) +{ + struct qmp_combo *qmp = data; + + switch (clkspec->args[0]) { + case QMP_USB43DP_USB3_PIPE_CLK: + return &qmp->pipe_clk_fixed.hw; + case QMP_USB43DP_DP_LINK_CLK: + return &qmp->dp_link_hw; + case QMP_USB43DP_DP_VCO_DIV_CLK: + return &qmp->dp_pixel_hw; + } + + return ERR_PTR(-EINVAL); +} + static int qmp_combo_register_clocks(struct qmp_combo *qmp, struct device_node *usb_np, struct device_node *dp_np) { @@ -2434,6 +2481,15 @@ static int qmp_combo_register_clocks(struct qmp_combo *qmp, struct device_node * if (ret) return ret; + /* + * Register a single provider for bindings without child nodes. + */ + if (usb_np == qmp->dev->of_node) + return devm_of_clk_add_hw_provider(qmp->dev, qmp_combo_clk_hw_get, qmp); + + /* + * Register multiple providers for legacy bindings with child nodes. + */ ret = of_clk_add_hw_provider(usb_np, of_clk_hw_simple_get, &qmp->pipe_clk_fixed.hw); if (ret) @@ -2558,6 +2614,63 @@ static int qmp_combo_parse_dt_legacy(struct qmp_combo *qmp, struct device_node * return 0; } +static int qmp_combo_parse_dt(struct qmp_combo *qmp) +{ + struct platform_device *pdev = to_platform_device(qmp->dev); + const struct qmp_phy_cfg *cfg = qmp->cfg; + const struct qmp_combo_offsets *offs = cfg->offsets; + struct device *dev = qmp->dev; + void __iomem *base; + + if (!offs) + return -EINVAL; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + qmp->com = base + offs->com; + qmp->tx = base + offs->txa; + qmp->rx = base + offs->rxa; + qmp->tx2 = base + offs->txb; + qmp->rx2 = base + offs->rxb; + + qmp->serdes = base + offs->usb3_serdes; + qmp->pcs_misc = base + offs->usb3_pcs_misc; + qmp->pcs = base + offs->usb3_pcs; + qmp->pcs_usb = base + offs->usb3_pcs_usb; + + qmp->dp_serdes = base + offs->dp_serdes; + qmp->dp_tx = base + offs->txa; + qmp->dp_tx2 = base + offs->txb; + qmp->dp_dp_phy = base + offs->dp_dp_phy; + + qmp->pipe_clk = devm_clk_get(dev, "usb3_pipe"); + if (IS_ERR(qmp->pipe_clk)) { + return dev_err_probe(dev, PTR_ERR(qmp->pipe_clk), + "failed to get usb3_pipe clock\n"); + } + + return 0; +} + +static struct phy *qmp_combo_phy_xlate(struct device *dev, struct of_phandle_args *args) +{ + struct qmp_combo *qmp = dev_get_drvdata(dev); + + if (args->args_count == 0) + return ERR_PTR(-EINVAL); + + switch (args->args[0]) { + case QMP_USB43DP_USB3_PHY: + return qmp->usb_phy; + case QMP_USB43DP_DP_PHY: + return qmp->dp_phy; + } + + return ERR_PTR(-EINVAL); +} + static int qmp_combo_probe(struct platform_device *pdev) { struct qmp_combo *qmp; @@ -2590,17 +2703,22 @@ static int qmp_combo_probe(struct platform_device *pdev) if (ret) return ret; + /* Check for legacy binding with child nodes. */ usb_np = of_get_child_by_name(dev->of_node, "usb3-phy"); - if (!usb_np) - return -EINVAL; + if (usb_np) { + dp_np = of_get_child_by_name(dev->of_node, "dp-phy"); + if (!dp_np) { + of_node_put(usb_np); + return -EINVAL; + } - dp_np = of_get_child_by_name(dev->of_node, "dp-phy"); - if (!dp_np) { - of_node_put(usb_np); - return -EINVAL; - } + ret = qmp_combo_parse_dt_legacy(qmp, usb_np, dp_np); + } else { + usb_np = of_node_get(dev->of_node); + dp_np = of_node_get(dev->of_node); - ret = qmp_combo_parse_dt_legacy(qmp, usb_np, dp_np); + ret = qmp_combo_parse_dt(qmp); + } if (ret) goto err_node_put; @@ -2636,7 +2754,12 @@ static int qmp_combo_probe(struct platform_device *pdev) phy_set_drvdata(qmp->dp_phy, qmp); - phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + dev_set_drvdata(dev, qmp); + + if (usb_np == dev->of_node) + phy_provider = devm_of_phy_provider_register(dev, qmp_combo_phy_xlate); + else + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); of_node_put(usb_np); of_node_put(dp_np); |