From 28e265bf84a8f885b3156f24dc246bf1d7bb40a5 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Tue, 11 Jul 2023 15:09:08 +0300 Subject: [PATCH] phy: qcom-qmp-combo: simplify clock handling For the existing PHYs for new binding we are going to drop ref_clk_src clock and always use ref clock. Rather than introducing additional code to handle legacy vs current bindings (and clock names), use devm_clk_bulk_get_optional() when new bindings are used and devm_clk_bulk_get_all() when legacy bindings are in place. Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20230711120916.4165894-3-dmitry.baryshkov@linaro.org Signed-off-by: Vinod Koul --- drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 67 +++++++++++-------------------- 1 file changed, 23 insertions(+), 44 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c index e373b6b..0220924 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c @@ -1358,9 +1358,6 @@ struct qmp_phy_cfg { int (*calibrate_dp_phy)(struct qmp_combo *qmp); void (*dp_aux_init)(struct qmp_combo *qmp); - /* 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; @@ -1402,6 +1399,7 @@ struct qmp_combo { struct clk *pipe_clk; struct clk_bulk_data *clks; + int num_clks; struct reset_control_bulk_data *resets; struct regulator_bulk_data *vregs; @@ -1462,19 +1460,10 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val) } /* list of clocks required by phy */ -static const char * const qmp_v3_phy_clk_l[] = { +static const char * const qmp_combo_phy_clk_l[] = { "aux", "cfg_ahb", "ref", "com_aux", }; -static const char * const qmp_v4_phy_clk_l[] = { - "aux", "ref", "com_aux", -}; - -/* the primary usb3 phy on sm8250 doesn't have a ref clock */ -static const char * const qmp_v4_sm8250_usbphy_clk_l[] = { - "aux", "ref_clk_src", "com_aux" -}; - /* list of resets */ static const char * const msm8996_usb3phy_reset_l[] = { "phy", "common", @@ -1548,8 +1537,6 @@ static const struct qmp_phy_cfg sc7180_usb3dpphy_cfg = { .configure_dp_phy = qmp_v3_configure_dp_phy, .calibrate_dp_phy = qmp_v3_calibrate_dp_phy, - .clk_list = qmp_v3_phy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l), .reset_list = sc7180_usb3phy_reset_l, .num_resets = ARRAY_SIZE(sc7180_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -1593,8 +1580,6 @@ static const struct qmp_phy_cfg sdm845_usb3dpphy_cfg = { .configure_dp_phy = qmp_v3_configure_dp_phy, .calibrate_dp_phy = qmp_v3_calibrate_dp_phy, - .clk_list = qmp_v3_phy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v3_phy_clk_l), .reset_list = msm8996_usb3phy_reset_l, .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -1640,8 +1625,6 @@ static const struct qmp_phy_cfg sc8180x_usb3dpphy_cfg = { .configure_dp_phy = qmp_v4_configure_dp_phy, .calibrate_dp_phy = qmp_v4_calibrate_dp_phy, - .clk_list = qmp_v4_phy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), .reset_list = msm8996_usb3phy_reset_l, .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -1688,8 +1671,6 @@ static const struct qmp_phy_cfg sc8280xp_usb43dpphy_cfg = { .configure_dp_phy = qmp_v4_configure_dp_phy, .calibrate_dp_phy = qmp_v4_calibrate_dp_phy, - .clk_list = qmp_v4_phy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), .reset_list = msm8996_usb3phy_reset_l, .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -1733,8 +1714,6 @@ static const struct qmp_phy_cfg sm6350_usb3dpphy_cfg = { .configure_dp_phy = qmp_v3_configure_dp_phy, .calibrate_dp_phy = qmp_v3_calibrate_dp_phy, - .clk_list = qmp_v4_phy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), .reset_list = msm8996_usb3phy_reset_l, .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -1778,8 +1757,6 @@ static const struct qmp_phy_cfg sm8250_usb3dpphy_cfg = { .configure_dp_phy = qmp_v4_configure_dp_phy, .calibrate_dp_phy = qmp_v4_calibrate_dp_phy, - .clk_list = qmp_v4_sm8250_usbphy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v4_sm8250_usbphy_clk_l), .reset_list = msm8996_usb3phy_reset_l, .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -1828,8 +1805,6 @@ static const struct qmp_phy_cfg sm8350_usb3dpphy_cfg = { .configure_dp_phy = qmp_v4_configure_dp_phy, .calibrate_dp_phy = qmp_v4_calibrate_dp_phy, - .clk_list = qmp_v4_phy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), .reset_list = msm8996_usb3phy_reset_l, .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -1878,8 +1853,6 @@ static const struct qmp_phy_cfg sm8550_usb3dpphy_cfg = { .calibrate_dp_phy = qmp_v4_calibrate_dp_phy, .regs = qmp_v6_usb3phy_regs_layout, - .clk_list = qmp_v4_phy_clk_l, - .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), .reset_list = msm8996_usb3phy_reset_l, .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), .vreg_list = qmp_phy_vreg_l, @@ -2432,7 +2405,7 @@ static int qmp_combo_com_init(struct qmp_combo *qmp, bool force) goto err_disable_regulators; } - ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks); + ret = clk_bulk_prepare_enable(qmp->num_clks, qmp->clks); if (ret) goto err_assert_reset; @@ -2482,7 +2455,7 @@ static int qmp_combo_com_exit(struct qmp_combo *qmp, bool force) reset_control_bulk_assert(cfg->num_resets, qmp->resets); - clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks); + clk_bulk_disable_unprepare(qmp->num_clks, qmp->clks); regulator_bulk_disable(cfg->num_vregs, qmp->vregs); @@ -2761,7 +2734,6 @@ static void qmp_combo_disable_autonomous_mode(struct qmp_combo *qmp) static int __maybe_unused qmp_combo_runtime_suspend(struct device *dev) { struct qmp_combo *qmp = dev_get_drvdata(dev); - const struct qmp_phy_cfg *cfg = qmp->cfg; dev_vdbg(dev, "Suspending QMP phy, mode:%d\n", qmp->mode); @@ -2773,7 +2745,7 @@ static int __maybe_unused qmp_combo_runtime_suspend(struct device *dev) qmp_combo_enable_autonomous_mode(qmp); clk_disable_unprepare(qmp->pipe_clk); - clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks); + clk_bulk_disable_unprepare(qmp->num_clks, qmp->clks); return 0; } @@ -2781,7 +2753,6 @@ static int __maybe_unused qmp_combo_runtime_suspend(struct device *dev) static int __maybe_unused qmp_combo_runtime_resume(struct device *dev) { struct qmp_combo *qmp = dev_get_drvdata(dev); - const struct qmp_phy_cfg *cfg = qmp->cfg; int ret = 0; dev_vdbg(dev, "Resuming QMP phy, mode:%d\n", qmp->mode); @@ -2791,14 +2762,14 @@ static int __maybe_unused qmp_combo_runtime_resume(struct device *dev) return 0; } - ret = clk_bulk_prepare_enable(cfg->num_clks, qmp->clks); + ret = clk_bulk_prepare_enable(qmp->num_clks, qmp->clks); if (ret) return ret; ret = clk_prepare_enable(qmp->pipe_clk); if (ret) { dev_err(dev, "pipe_clk enable failed, err=%d\n", ret); - clk_bulk_disable_unprepare(cfg->num_clks, qmp->clks); + clk_bulk_disable_unprepare(qmp->num_clks, qmp->clks); return ret; } @@ -2869,9 +2840,8 @@ static int qmp_combo_reset_init(struct qmp_combo *qmp) static int qmp_combo_clk_init(struct qmp_combo *qmp) { - const struct qmp_phy_cfg *cfg = qmp->cfg; struct device *dev = qmp->dev; - int num = cfg->num_clks; + int num = ARRAY_SIZE(qmp_combo_phy_clk_l); int i; qmp->clks = devm_kcalloc(dev, num, sizeof(*qmp->clks), GFP_KERNEL); @@ -2879,9 +2849,11 @@ static int qmp_combo_clk_init(struct qmp_combo *qmp) return -ENOMEM; for (i = 0; i < num; i++) - qmp->clks[i].id = cfg->clk_list[i]; + qmp->clks[i].id = qmp_combo_phy_clk_l[i]; - return devm_clk_bulk_get(dev, num, qmp->clks); + qmp->num_clks = num; + + return devm_clk_bulk_get_optional(dev, num, qmp->clks); } static void phy_clk_release_provider(void *res) @@ -3087,6 +3059,12 @@ static int phy_dp_clks_register(struct qmp_combo *qmp, struct device_node *np) if (ret) return ret; + ret = devm_clk_bulk_get_all(qmp->dev, &qmp->clks); + if (ret < 0) + return ret; + + qmp->num_clks = ret; + return 0; } @@ -3356,6 +3334,7 @@ static int qmp_combo_parse_dt(struct qmp_combo *qmp) const struct qmp_combo_offsets *offs = cfg->offsets; struct device *dev = qmp->dev; void __iomem *base; + int ret; if (!offs) return -EINVAL; @@ -3385,6 +3364,10 @@ static int qmp_combo_parse_dt(struct qmp_combo *qmp) } qmp->dp_dp_phy = base + offs->dp_dp_phy; + ret = qmp_combo_clk_init(qmp); + if (ret) + return ret; + 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), @@ -3433,10 +3416,6 @@ static int qmp_combo_probe(struct platform_device *pdev) mutex_init(&qmp->phy_mutex); - ret = qmp_combo_clk_init(qmp); - if (ret) - return ret; - ret = qmp_combo_reset_init(qmp); if (ret) return ret; -- 2.7.4