From fd91ddad2e9a1eab3df63ccd0f60fdfa08dbe452 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:40 +0530 Subject: phy: qcom-ufs: Remove unnecessary BUG_ON BUG_ON() are not preferred in the driver, plus the variable on which BUG_ON is asserted is already checked in the code before passing. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index 18a5b495ad65..455064cd270d 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -322,8 +322,6 @@ int ufs_qcom_phy_cfg_vreg(struct phy *phy, struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(phy); struct device *dev = ufs_qcom_phy->dev; - BUG_ON(!vreg); - if (regulator_count_voltages(reg) > 0) { min_uV = on ? vreg->min_uV : 0; ret = regulator_set_voltage(reg, min_uV, vreg->max_uV); -- cgit v1.2.3 From add78fc05702b1082b31cf99c670bab5919cbe80 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:41 +0530 Subject: phy: qcom-ufs: Use devm sibling of kstrdup for regulator names This helps us in avoiding any requirement for kfree() operation to be called exclusively over the allocated string pointer. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index 455064cd270d..5dc24d8554a8 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -251,7 +251,7 @@ static int __ufs_qcom_phy_init_vreg(struct phy *phy, char prop_name[MAX_PROP_NAME]; - vreg->name = kstrdup(name, GFP_KERNEL); + vreg->name = devm_kstrdup(dev, name, GFP_KERNEL); if (!vreg->name) { err = -ENOMEM; goto out; @@ -637,9 +637,6 @@ int ufs_qcom_phy_remove(struct phy *generic_phy, { phy_power_off(generic_phy); - kfree(ufs_qcom_phy->vdda_pll.name); - kfree(ufs_qcom_phy->vdda_phy.name); - return 0; } EXPORT_SYMBOL_GPL(ufs_qcom_phy_remove); -- cgit v1.2.3 From 89bd296b78bc2222c04b6e9cae5b56295b023228 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:42 +0530 Subject: phy: qcom-ufs: Cleanup clock and regulator initialization Different menthods pass around generic phy pointer to extract device pointer. Instead, pass the device pointer directly between function calls. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs-i.h | 6 +-- drivers/phy/phy-qcom-ufs-qmp-14nm.c | 4 +- drivers/phy/phy-qcom-ufs-qmp-20nm.c | 4 +- drivers/phy/phy-qcom-ufs.c | 80 ++++++++++++++----------------------- 4 files changed, 37 insertions(+), 57 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs-i.h b/drivers/phy/phy-qcom-ufs-i.h index 2bd5ce43a724..69e836d0ec3e 100644 --- a/drivers/phy/phy-qcom-ufs-i.h +++ b/drivers/phy/phy-qcom-ufs-i.h @@ -142,10 +142,8 @@ struct ufs_qcom_phy *get_ufs_qcom_phy(struct phy *generic_phy); int ufs_qcom_phy_power_on(struct phy *generic_phy); int ufs_qcom_phy_power_off(struct phy *generic_phy); int ufs_qcom_phy_exit(struct phy *generic_phy); -int ufs_qcom_phy_init_clks(struct phy *generic_phy, - struct ufs_qcom_phy *phy_common); -int ufs_qcom_phy_init_vregulators(struct phy *generic_phy, - struct ufs_qcom_phy *phy_common); +int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common); +int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common); int ufs_qcom_phy_remove(struct phy *generic_phy, struct ufs_qcom_phy *ufs_qcom_phy); struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev, diff --git a/drivers/phy/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/phy-qcom-ufs-qmp-14nm.c index 6ee51490f786..e3bede73ec73 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-14nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-14nm.c @@ -48,14 +48,14 @@ static int ufs_qcom_phy_qmp_14nm_init(struct phy *generic_phy) struct ufs_qcom_phy *phy_common = &phy->common_cfg; int err; - err = ufs_qcom_phy_init_clks(generic_phy, phy_common); + err = ufs_qcom_phy_init_clks(phy_common); if (err) { dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_clks() failed %d\n", __func__, err); goto out; } - err = ufs_qcom_phy_init_vregulators(generic_phy, phy_common); + err = ufs_qcom_phy_init_vregulators(phy_common); if (err) { dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_vregulators() failed %d\n", __func__, err); diff --git a/drivers/phy/phy-qcom-ufs-qmp-20nm.c b/drivers/phy/phy-qcom-ufs-qmp-20nm.c index 770087ab05e2..e09ecb8c1e5f 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-20nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-20nm.c @@ -67,14 +67,14 @@ static int ufs_qcom_phy_qmp_20nm_init(struct phy *generic_phy) struct ufs_qcom_phy *phy_common = &phy->common_cfg; int err = 0; - err = ufs_qcom_phy_init_clks(generic_phy, phy_common); + err = ufs_qcom_phy_init_clks(phy_common); if (err) { dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_clks() failed %d\n", __func__, err); goto out; } - err = ufs_qcom_phy_init_vregulators(generic_phy, phy_common); + err = ufs_qcom_phy_init_vregulators(phy_common); if (err) { dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_vregulators() failed %d\n", __func__, err); diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index 5dc24d8554a8..b0171fef3868 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -22,9 +22,9 @@ #define VDDP_REF_CLK_MIN_UV 1200000 #define VDDP_REF_CLK_MAX_UV 1200000 -static int __ufs_qcom_phy_init_vreg(struct phy *, struct ufs_qcom_phy_vreg *, +static int __ufs_qcom_phy_init_vreg(struct device *, struct ufs_qcom_phy_vreg *, const char *, bool); -static int ufs_qcom_phy_init_vreg(struct phy *, struct ufs_qcom_phy_vreg *, +static int ufs_qcom_phy_init_vreg(struct device *, struct ufs_qcom_phy_vreg *, const char *); static int ufs_qcom_phy_base_init(struct platform_device *pdev, struct ufs_qcom_phy *phy_common); @@ -154,13 +154,11 @@ int ufs_qcom_phy_base_init(struct platform_device *pdev, return 0; } -static int __ufs_qcom_phy_clk_get(struct phy *phy, +static int __ufs_qcom_phy_clk_get(struct device *dev, const char *name, struct clk **clk_out, bool err_print) { struct clk *clk; int err = 0; - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(phy); - struct device *dev = ufs_qcom_phy->dev; clk = devm_clk_get(dev, name); if (IS_ERR(clk)) { @@ -174,30 +172,27 @@ static int __ufs_qcom_phy_clk_get(struct phy *phy, return err; } -static -int ufs_qcom_phy_clk_get(struct phy *phy, +static int ufs_qcom_phy_clk_get(struct device *dev, const char *name, struct clk **clk_out) { - return __ufs_qcom_phy_clk_get(phy, name, clk_out, true); + return __ufs_qcom_phy_clk_get(dev, name, clk_out, true); } -int -ufs_qcom_phy_init_clks(struct phy *generic_phy, - struct ufs_qcom_phy *phy_common) +int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common) { int err; - err = ufs_qcom_phy_clk_get(generic_phy, "tx_iface_clk", + err = ufs_qcom_phy_clk_get(phy_common->dev, "tx_iface_clk", &phy_common->tx_iface_clk); if (err) goto out; - err = ufs_qcom_phy_clk_get(generic_phy, "rx_iface_clk", + err = ufs_qcom_phy_clk_get(phy_common->dev, "rx_iface_clk", &phy_common->rx_iface_clk); if (err) goto out; - err = ufs_qcom_phy_clk_get(generic_phy, "ref_clk_src", + err = ufs_qcom_phy_clk_get(phy_common->dev, "ref_clk_src", &phy_common->ref_clk_src); if (err) goto out; @@ -206,10 +201,10 @@ ufs_qcom_phy_init_clks(struct phy *generic_phy, * "ref_clk_parent" is optional hence don't abort init if it's not * found. */ - __ufs_qcom_phy_clk_get(generic_phy, "ref_clk_parent", + __ufs_qcom_phy_clk_get(phy_common->dev, "ref_clk_parent", &phy_common->ref_clk_parent, false); - err = ufs_qcom_phy_clk_get(generic_phy, "ref_clk", + err = ufs_qcom_phy_clk_get(phy_common->dev, "ref_clk", &phy_common->ref_clk); out: @@ -217,37 +212,33 @@ out: } EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_clks); -int -ufs_qcom_phy_init_vregulators(struct phy *generic_phy, - struct ufs_qcom_phy *phy_common) +int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common) { int err; - err = ufs_qcom_phy_init_vreg(generic_phy, &phy_common->vdda_pll, + err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_pll, "vdda-pll"); if (err) goto out; - err = ufs_qcom_phy_init_vreg(generic_phy, &phy_common->vdda_phy, + err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_phy, "vdda-phy"); if (err) goto out; /* vddp-ref-clk-* properties are optional */ - __ufs_qcom_phy_init_vreg(generic_phy, &phy_common->vddp_ref_clk, + __ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vddp_ref_clk, "vddp-ref-clk", true); out: return err; } EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_vregulators); -static int __ufs_qcom_phy_init_vreg(struct phy *phy, +static int __ufs_qcom_phy_init_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg, const char *name, bool optional) { int err = 0; - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(phy); - struct device *dev = ufs_qcom_phy->dev; char prop_name[MAX_PROP_NAME]; @@ -304,14 +295,13 @@ out: return err; } -static int ufs_qcom_phy_init_vreg(struct phy *phy, +static int ufs_qcom_phy_init_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg, const char *name) { - return __ufs_qcom_phy_init_vreg(phy, vreg, name, false); + return __ufs_qcom_phy_init_vreg(dev, vreg, name, false); } -static -int ufs_qcom_phy_cfg_vreg(struct phy *phy, +static int ufs_qcom_phy_cfg_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg, bool on) { int ret = 0; @@ -319,8 +309,6 @@ int ufs_qcom_phy_cfg_vreg(struct phy *phy, const char *name = vreg->name; int min_uV; int uA_load; - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(phy); - struct device *dev = ufs_qcom_phy->dev; if (regulator_count_voltages(reg) > 0) { min_uV = on ? vreg->min_uV : 0; @@ -348,18 +336,15 @@ out: return ret; } -static -int ufs_qcom_phy_enable_vreg(struct phy *phy, +static int ufs_qcom_phy_enable_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg) { - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(phy); - struct device *dev = ufs_qcom_phy->dev; int ret = 0; if (!vreg || vreg->enabled) goto out; - ret = ufs_qcom_phy_cfg_vreg(phy, vreg, true); + ret = ufs_qcom_phy_cfg_vreg(dev, vreg, true); if (ret) { dev_err(dev, "%s: ufs_qcom_phy_cfg_vreg() failed, err=%d\n", __func__, ret); @@ -430,12 +415,9 @@ out: } EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_ref_clk); -static -int ufs_qcom_phy_disable_vreg(struct phy *phy, +static int ufs_qcom_phy_disable_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg) { - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(phy); - struct device *dev = ufs_qcom_phy->dev; int ret = 0; if (!vreg || !vreg->enabled || vreg->is_always_on) @@ -445,7 +427,7 @@ int ufs_qcom_phy_disable_vreg(struct phy *phy, if (!ret) { /* ignore errors on applying disable config */ - ufs_qcom_phy_cfg_vreg(phy, vreg, false); + ufs_qcom_phy_cfg_vreg(dev, vreg, false); vreg->enabled = false; } else { dev_err(dev, "%s: %s disable failed, err=%d\n", @@ -673,7 +655,7 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy) struct device *dev = phy_common->dev; int err; - err = ufs_qcom_phy_enable_vreg(generic_phy, &phy_common->vdda_phy); + err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vdda_phy); if (err) { dev_err(dev, "%s enable vdda_phy failed, err=%d\n", __func__, err); @@ -683,7 +665,7 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy) phy_common->phy_spec_ops->power_control(phy_common, true); /* vdda_pll also enables ref clock LDOs so enable it first */ - err = ufs_qcom_phy_enable_vreg(generic_phy, &phy_common->vdda_pll); + err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vdda_pll); if (err) { dev_err(dev, "%s enable vdda_pll failed, err=%d\n", __func__, err); @@ -699,7 +681,7 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy) /* enable device PHY ref_clk pad rail */ if (phy_common->vddp_ref_clk.reg) { - err = ufs_qcom_phy_enable_vreg(generic_phy, + err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vddp_ref_clk); if (err) { dev_err(dev, "%s enable vddp_ref_clk failed, err=%d\n", @@ -714,9 +696,9 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy) out_disable_ref_clk: ufs_qcom_phy_disable_ref_clk(generic_phy); out_disable_pll: - ufs_qcom_phy_disable_vreg(generic_phy, &phy_common->vdda_pll); + ufs_qcom_phy_disable_vreg(dev, &phy_common->vdda_pll); out_disable_phy: - ufs_qcom_phy_disable_vreg(generic_phy, &phy_common->vdda_phy); + ufs_qcom_phy_disable_vreg(dev, &phy_common->vdda_phy); out: return err; } @@ -729,12 +711,12 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy) phy_common->phy_spec_ops->power_control(phy_common, false); if (phy_common->vddp_ref_clk.reg) - ufs_qcom_phy_disable_vreg(generic_phy, + ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vddp_ref_clk); ufs_qcom_phy_disable_ref_clk(generic_phy); - ufs_qcom_phy_disable_vreg(generic_phy, &phy_common->vdda_pll); - ufs_qcom_phy_disable_vreg(generic_phy, &phy_common->vdda_phy); + ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vdda_pll); + ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vdda_phy); phy_common->is_powered_on = false; return 0; -- cgit v1.2.3 From e41973769bb5d458c9449694b98382ba5d530cde Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:43 +0530 Subject: phy: qcom-ufs-14nm: Add new compatible for msm8996 based phy Add a new compatible string for 14nm ufs phy present on msm8996 chipset. This phy is bit different from the legacy 14nm ufs phy in terms of the clocks that are needed to be handled in the driver. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- Documentation/devicetree/bindings/ufs/ufs-qcom.txt | 7 +++++-- drivers/phy/phy-qcom-ufs-qmp-14nm.c | 1 + 2 files changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/phy') diff --git a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt index 070baf4d7d97..b6b5130e5f65 100644 --- a/Documentation/devicetree/bindings/ufs/ufs-qcom.txt +++ b/Documentation/devicetree/bindings/ufs/ufs-qcom.txt @@ -7,8 +7,11 @@ To bind UFS PHY with UFS host controller, the controller node should contain a phandle reference to UFS PHY node. Required properties: -- compatible : compatible list, contains "qcom,ufs-phy-qmp-20nm" - or "qcom,ufs-phy-qmp-14nm" according to the relevant phy in use. +- compatible : compatible list, contains one of the following - + "qcom,ufs-phy-qmp-20nm" for 20nm ufs phy, + "qcom,ufs-phy-qmp-14nm" for legacy 14nm ufs phy, + "qcom,msm8996-ufs-phy-qmp-14nm" for 14nm ufs phy + present on MSM8996 chipset. - reg : should contain PHY register address space (mandatory), - reg-names : indicates various resources passed to driver (via reg proptery) by name. Required "reg-names" is "phy_mem". diff --git a/drivers/phy/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/phy-qcom-ufs-qmp-14nm.c index e3bede73ec73..b3d2612a7ae8 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-14nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-14nm.c @@ -180,6 +180,7 @@ static int ufs_qcom_phy_qmp_14nm_remove(struct platform_device *pdev) static const struct of_device_id ufs_qcom_phy_qmp_14nm_of_match[] = { {.compatible = "qcom,ufs-phy-qmp-14nm"}, + {.compatible = "qcom,msm8996-ufs-phy-qmp-14nm"}, {}, }; MODULE_DEVICE_TABLE(of, ufs_qcom_phy_qmp_14nm_of_match); -- cgit v1.2.3 From 300f96771d78e125c42592792e18b4c0cf58d386 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:44 +0530 Subject: phy: qcom-ufs: Skip obtaining rx/tx_iface_clk for msm8996 based phy The tx_iface_clk and rx_iface_clk no longer exist with UFS Phy present on msm8996. So skip obtaining these clocks using compatible match. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index b0171fef3868..3fa7b07aaeca 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -182,6 +182,10 @@ int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common) { int err; + if (of_device_is_compatible(phy_common->dev->of_node, + "qcom,msm8996-ufs-phy-qmp-14nm")) + goto skip_txrx_clk; + err = ufs_qcom_phy_clk_get(phy_common->dev, "tx_iface_clk", &phy_common->tx_iface_clk); if (err) @@ -197,6 +201,7 @@ int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common) if (err) goto out; +skip_txrx_clk: /* * "ref_clk_parent" is optional hence don't abort init if it's not * found. -- cgit v1.2.3 From a378508d361ccfce89557c4f1be01914ce70f1c3 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:45 +0530 Subject: phy: qcom-ufs-qmp-xx: Discard remove callback for drivers. remove() callback does a phy_power_off() only over the phy, and nothing else now. The phy_power_off() over the generic phy is called from the phy consumer, and phy provider driver should not explicitly need to call any phy ops. So discard the remove callback for qcom-ufs phy platform drivers. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs-qmp-14nm.c | 16 ---------------- drivers/phy/phy-qcom-ufs-qmp-20nm.c | 16 ---------------- drivers/phy/phy-qcom-ufs.c | 9 --------- 3 files changed, 41 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/phy-qcom-ufs-qmp-14nm.c index b3d2612a7ae8..560f272810f1 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-14nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-14nm.c @@ -163,21 +163,6 @@ out: return err; } -static int ufs_qcom_phy_qmp_14nm_remove(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct phy *generic_phy = to_phy(dev); - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy); - int err = 0; - - err = ufs_qcom_phy_remove(generic_phy, ufs_qcom_phy); - if (err) - dev_err(dev, "%s: ufs_qcom_phy_remove failed = %d\n", - __func__, err); - - return err; -} - static const struct of_device_id ufs_qcom_phy_qmp_14nm_of_match[] = { {.compatible = "qcom,ufs-phy-qmp-14nm"}, {.compatible = "qcom,msm8996-ufs-phy-qmp-14nm"}, @@ -187,7 +172,6 @@ MODULE_DEVICE_TABLE(of, ufs_qcom_phy_qmp_14nm_of_match); static struct platform_driver ufs_qcom_phy_qmp_14nm_driver = { .probe = ufs_qcom_phy_qmp_14nm_probe, - .remove = ufs_qcom_phy_qmp_14nm_remove, .driver = { .of_match_table = ufs_qcom_phy_qmp_14nm_of_match, .name = "ufs_qcom_phy_qmp_14nm", diff --git a/drivers/phy/phy-qcom-ufs-qmp-20nm.c b/drivers/phy/phy-qcom-ufs-qmp-20nm.c index e09ecb8c1e5f..9a2f53d5aa1d 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-20nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-20nm.c @@ -219,21 +219,6 @@ out: return err; } -static int ufs_qcom_phy_qmp_20nm_remove(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct phy *generic_phy = to_phy(dev); - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy); - int err = 0; - - err = ufs_qcom_phy_remove(generic_phy, ufs_qcom_phy); - if (err) - dev_err(dev, "%s: ufs_qcom_phy_remove failed = %d\n", - __func__, err); - - return err; -} - static const struct of_device_id ufs_qcom_phy_qmp_20nm_of_match[] = { {.compatible = "qcom,ufs-phy-qmp-20nm"}, {}, @@ -242,7 +227,6 @@ MODULE_DEVICE_TABLE(of, ufs_qcom_phy_qmp_20nm_of_match); static struct platform_driver ufs_qcom_phy_qmp_20nm_driver = { .probe = ufs_qcom_phy_qmp_20nm_probe, - .remove = ufs_qcom_phy_qmp_20nm_remove, .driver = { .of_match_table = ufs_qcom_phy_qmp_20nm_of_match, .name = "ufs_qcom_phy_qmp_20nm", diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index 3fa7b07aaeca..b85f88251aa2 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -619,15 +619,6 @@ int ufs_qcom_phy_calibrate_phy(struct phy *generic_phy, bool is_rate_B) } EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate_phy); -int ufs_qcom_phy_remove(struct phy *generic_phy, - struct ufs_qcom_phy *ufs_qcom_phy) -{ - phy_power_off(generic_phy); - - return 0; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_remove); - int ufs_qcom_phy_exit(struct phy *generic_phy) { struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy); -- cgit v1.2.3 From 15887cb8cb912513c24e8834428922b8f4ae8eb5 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:46 +0530 Subject: phy: qcom-ufs: Remove unnecessary function declarations Move the functions' definitions to remove unnecessary declarations. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs.c | 131 +++++++++++++++++++++------------------------ 1 file changed, 62 insertions(+), 69 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index b85f88251aa2..c5c29fef4c56 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -22,13 +22,6 @@ #define VDDP_REF_CLK_MIN_UV 1200000 #define VDDP_REF_CLK_MAX_UV 1200000 -static int __ufs_qcom_phy_init_vreg(struct device *, struct ufs_qcom_phy_vreg *, - const char *, bool); -static int ufs_qcom_phy_init_vreg(struct device *, struct ufs_qcom_phy_vreg *, - const char *); -static int ufs_qcom_phy_base_init(struct platform_device *pdev, - struct ufs_qcom_phy *phy_common); - int ufs_qcom_phy_calibrate(struct ufs_qcom_phy *ufs_qcom_phy, struct ufs_qcom_phy_calibration *tbl_A, int tbl_size_A, @@ -75,45 +68,6 @@ out: } EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate); -struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev, - struct ufs_qcom_phy *common_cfg, - const struct phy_ops *ufs_qcom_phy_gen_ops, - struct ufs_qcom_phy_specific_ops *phy_spec_ops) -{ - int err; - struct device *dev = &pdev->dev; - struct phy *generic_phy = NULL; - struct phy_provider *phy_provider; - - err = ufs_qcom_phy_base_init(pdev, common_cfg); - if (err) { - dev_err(dev, "%s: phy base init failed %d\n", __func__, err); - goto out; - } - - phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); - if (IS_ERR(phy_provider)) { - err = PTR_ERR(phy_provider); - dev_err(dev, "%s: failed to register phy %d\n", __func__, err); - goto out; - } - - generic_phy = devm_phy_create(dev, NULL, ufs_qcom_phy_gen_ops); - if (IS_ERR(generic_phy)) { - err = PTR_ERR(generic_phy); - dev_err(dev, "%s: failed to create phy %d\n", __func__, err); - generic_phy = NULL; - goto out; - } - - common_cfg->phy_spec_ops = phy_spec_ops; - common_cfg->dev = dev; - -out: - return generic_phy; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_generic_probe); - /* * This assumes the embedded phy structure inside generic_phy is of type * struct ufs_qcom_phy. In order to function properly it's crucial @@ -154,6 +108,45 @@ int ufs_qcom_phy_base_init(struct platform_device *pdev, return 0; } +struct phy *ufs_qcom_phy_generic_probe(struct platform_device *pdev, + struct ufs_qcom_phy *common_cfg, + const struct phy_ops *ufs_qcom_phy_gen_ops, + struct ufs_qcom_phy_specific_ops *phy_spec_ops) +{ + int err; + struct device *dev = &pdev->dev; + struct phy *generic_phy = NULL; + struct phy_provider *phy_provider; + + err = ufs_qcom_phy_base_init(pdev, common_cfg); + if (err) { + dev_err(dev, "%s: phy base init failed %d\n", __func__, err); + goto out; + } + + phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); + if (IS_ERR(phy_provider)) { + err = PTR_ERR(phy_provider); + dev_err(dev, "%s: failed to register phy %d\n", __func__, err); + goto out; + } + + generic_phy = devm_phy_create(dev, NULL, ufs_qcom_phy_gen_ops); + if (IS_ERR(generic_phy)) { + err = PTR_ERR(generic_phy); + dev_err(dev, "%s: failed to create phy %d\n", __func__, err); + generic_phy = NULL; + goto out; + } + + common_cfg->phy_spec_ops = phy_spec_ops; + common_cfg->dev = dev; + +out: + return generic_phy; +} +EXPORT_SYMBOL_GPL(ufs_qcom_phy_generic_probe); + static int __ufs_qcom_phy_clk_get(struct device *dev, const char *name, struct clk **clk_out, bool err_print) { @@ -217,29 +210,6 @@ out: } EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_clks); -int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common) -{ - int err; - - err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_pll, - "vdda-pll"); - if (err) - goto out; - - err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_phy, - "vdda-phy"); - - if (err) - goto out; - - /* vddp-ref-clk-* properties are optional */ - __ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vddp_ref_clk, - "vddp-ref-clk", true); -out: - return err; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_vregulators); - static int __ufs_qcom_phy_init_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg, const char *name, bool optional) { @@ -306,6 +276,29 @@ static int ufs_qcom_phy_init_vreg(struct device *dev, return __ufs_qcom_phy_init_vreg(dev, vreg, name, false); } +int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common) +{ + int err; + + err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_pll, + "vdda-pll"); + if (err) + goto out; + + err = ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vdda_phy, + "vdda-phy"); + + if (err) + goto out; + + /* vddp-ref-clk-* properties are optional */ + __ufs_qcom_phy_init_vreg(phy_common->dev, &phy_common->vddp_ref_clk, + "vddp-ref-clk", true); +out: + return err; +} +EXPORT_SYMBOL_GPL(ufs_qcom_phy_init_vregulators); + static int ufs_qcom_phy_cfg_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg, bool on) { -- cgit v1.2.3 From 9c7ce698ba41eec51b7d3e6a68c29fca26a32793 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:47 +0530 Subject: phy: qcom-ufs-qmp-xx: Move clock and regulator init out of phy init The phy init is meant to do phy initialization rather than just getting the clock and regulator. Move these clock and regulator get to probe(), to make room for actual phy initialization sequence. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs-qmp-14nm.c | 52 ++++++++++++++++++------------------- drivers/phy/phy-qcom-ufs-qmp-20nm.c | 46 +++++++++++++++----------------- 2 files changed, 46 insertions(+), 52 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/phy-qcom-ufs-qmp-14nm.c index 560f272810f1..ae74614baeb2 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-14nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-14nm.c @@ -44,30 +44,7 @@ void ufs_qcom_phy_qmp_14nm_advertise_quirks(struct ufs_qcom_phy *phy_common) static int ufs_qcom_phy_qmp_14nm_init(struct phy *generic_phy) { - struct ufs_qcom_phy_qmp_14nm *phy = phy_get_drvdata(generic_phy); - struct ufs_qcom_phy *phy_common = &phy->common_cfg; - int err; - - err = ufs_qcom_phy_init_clks(phy_common); - if (err) { - dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_clks() failed %d\n", - __func__, err); - goto out; - } - - err = ufs_qcom_phy_init_vregulators(phy_common); - if (err) { - dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_vregulators() failed %d\n", - __func__, err); - goto out; - } - phy_common->vdda_phy.max_uV = UFS_PHY_VDDA_PHY_UV; - phy_common->vdda_phy.min_uV = UFS_PHY_VDDA_PHY_UV; - - ufs_qcom_phy_qmp_14nm_advertise_quirks(phy_common); - -out: - return err; + return 0; } static @@ -136,6 +113,7 @@ static int ufs_qcom_phy_qmp_14nm_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct phy *generic_phy; struct ufs_qcom_phy_qmp_14nm *phy; + struct ufs_qcom_phy *phy_common; int err = 0; phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); @@ -143,8 +121,9 @@ static int ufs_qcom_phy_qmp_14nm_probe(struct platform_device *pdev) err = -ENOMEM; goto out; } + phy_common = &phy->common_cfg; - generic_phy = ufs_qcom_phy_generic_probe(pdev, &phy->common_cfg, + generic_phy = ufs_qcom_phy_generic_probe(pdev, phy_common, &ufs_qcom_phy_qmp_14nm_phy_ops, &phy_14nm_ops); if (!generic_phy) { @@ -154,10 +133,29 @@ static int ufs_qcom_phy_qmp_14nm_probe(struct platform_device *pdev) goto out; } + err = ufs_qcom_phy_init_clks(phy_common); + if (err) { + dev_err(phy_common->dev, + "%s: ufs_qcom_phy_init_clks() failed %d\n", + __func__, err); + goto out; + } + + err = ufs_qcom_phy_init_vregulators(phy_common); + if (err) { + dev_err(phy_common->dev, + "%s: ufs_qcom_phy_init_vregulators() failed %d\n", + __func__, err); + goto out; + } + phy_common->vdda_phy.max_uV = UFS_PHY_VDDA_PHY_UV; + phy_common->vdda_phy.min_uV = UFS_PHY_VDDA_PHY_UV; + + ufs_qcom_phy_qmp_14nm_advertise_quirks(phy_common); + phy_set_drvdata(generic_phy, phy); - strlcpy(phy->common_cfg.name, UFS_PHY_NAME, - sizeof(phy->common_cfg.name)); + strlcpy(phy_common->name, UFS_PHY_NAME, sizeof(phy_common->name)); out: return err; diff --git a/drivers/phy/phy-qcom-ufs-qmp-20nm.c b/drivers/phy/phy-qcom-ufs-qmp-20nm.c index 9a2f53d5aa1d..dfc51755d661 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-20nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-20nm.c @@ -63,28 +63,7 @@ void ufs_qcom_phy_qmp_20nm_advertise_quirks(struct ufs_qcom_phy *phy_common) static int ufs_qcom_phy_qmp_20nm_init(struct phy *generic_phy) { - struct ufs_qcom_phy_qmp_20nm *phy = phy_get_drvdata(generic_phy); - struct ufs_qcom_phy *phy_common = &phy->common_cfg; - int err = 0; - - err = ufs_qcom_phy_init_clks(phy_common); - if (err) { - dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_clks() failed %d\n", - __func__, err); - goto out; - } - - err = ufs_qcom_phy_init_vregulators(phy_common); - if (err) { - dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_vregulators() failed %d\n", - __func__, err); - goto out; - } - - ufs_qcom_phy_qmp_20nm_advertise_quirks(phy_common); - -out: - return err; + return 0; } static @@ -192,6 +171,7 @@ static int ufs_qcom_phy_qmp_20nm_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct phy *generic_phy; struct ufs_qcom_phy_qmp_20nm *phy; + struct ufs_qcom_phy *phy_common; int err = 0; phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL); @@ -199,8 +179,9 @@ static int ufs_qcom_phy_qmp_20nm_probe(struct platform_device *pdev) err = -ENOMEM; goto out; } + phy_common = &phy->common_cfg; - generic_phy = ufs_qcom_phy_generic_probe(pdev, &phy->common_cfg, + generic_phy = ufs_qcom_phy_generic_probe(pdev, phy_common, &ufs_qcom_phy_qmp_20nm_phy_ops, &phy_20nm_ops); if (!generic_phy) { @@ -210,10 +191,25 @@ static int ufs_qcom_phy_qmp_20nm_probe(struct platform_device *pdev) goto out; } + err = ufs_qcom_phy_init_clks(phy_common); + if (err) { + dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_clks() failed %d\n", + __func__, err); + goto out; + } + + err = ufs_qcom_phy_init_vregulators(phy_common); + if (err) { + dev_err(phy_common->dev, "%s: ufs_qcom_phy_init_vregulators() failed %d\n", + __func__, err); + goto out; + } + + ufs_qcom_phy_qmp_20nm_advertise_quirks(phy_common); + phy_set_drvdata(generic_phy, phy); - strlcpy(phy->common_cfg.name, UFS_PHY_NAME, - sizeof(phy->common_cfg.name)); + strlcpy(phy_common->name, UFS_PHY_NAME, sizeof(phy_common->name)); out: return err; -- cgit v1.2.3 From feb3d79800ece19c18b979c5edd1c28755f59d07 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:48 +0530 Subject: scsi: ufs-qcom: phy/hcd: Refactoring phy clock handling Add phy clock enable code to phy_power_on/off callbacks, and remove explicit calls to enable these phy clocks from the ufs-qcom hcd driver. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs.c | 36 ++++++++++++++++++------------------ drivers/scsi/ufs/ufs-qcom.c | 21 ++++++--------------- include/linux/phy/phy-qcom-ufs.h | 18 ------------------ 3 files changed, 24 insertions(+), 51 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index c5c29fef4c56..fdd9b901983f 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -361,10 +361,9 @@ out: return ret; } -int ufs_qcom_phy_enable_ref_clk(struct phy *generic_phy) +static int ufs_qcom_phy_enable_ref_clk(struct ufs_qcom_phy *phy) { int ret = 0; - struct ufs_qcom_phy *phy = get_ufs_qcom_phy(generic_phy); if (phy->is_ref_clk_enabled) goto out; @@ -411,7 +410,6 @@ out_disable_src: out: return ret; } -EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_ref_clk); static int ufs_qcom_phy_disable_vreg(struct device *dev, struct ufs_qcom_phy_vreg *vreg) @@ -435,10 +433,8 @@ out: return ret; } -void ufs_qcom_phy_disable_ref_clk(struct phy *generic_phy) +static void ufs_qcom_phy_disable_ref_clk(struct ufs_qcom_phy *phy) { - struct ufs_qcom_phy *phy = get_ufs_qcom_phy(generic_phy); - if (phy->is_ref_clk_enabled) { clk_disable_unprepare(phy->ref_clk); /* @@ -451,7 +447,6 @@ void ufs_qcom_phy_disable_ref_clk(struct phy *generic_phy) phy->is_ref_clk_enabled = false; } } -EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_ref_clk); #define UFS_REF_CLK_EN (1 << 5) @@ -504,9 +499,8 @@ void ufs_qcom_phy_disable_dev_ref_clk(struct phy *generic_phy) EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_dev_ref_clk); /* Turn ON M-PHY RMMI interface clocks */ -int ufs_qcom_phy_enable_iface_clk(struct phy *generic_phy) +static int ufs_qcom_phy_enable_iface_clk(struct ufs_qcom_phy *phy) { - struct ufs_qcom_phy *phy = get_ufs_qcom_phy(generic_phy); int ret = 0; if (phy->is_iface_clk_enabled) @@ -530,20 +524,16 @@ int ufs_qcom_phy_enable_iface_clk(struct phy *generic_phy) out: return ret; } -EXPORT_SYMBOL_GPL(ufs_qcom_phy_enable_iface_clk); /* Turn OFF M-PHY RMMI interface clocks */ -void ufs_qcom_phy_disable_iface_clk(struct phy *generic_phy) +void ufs_qcom_phy_disable_iface_clk(struct ufs_qcom_phy *phy) { - struct ufs_qcom_phy *phy = get_ufs_qcom_phy(generic_phy); - if (phy->is_iface_clk_enabled) { clk_disable_unprepare(phy->tx_iface_clk); clk_disable_unprepare(phy->rx_iface_clk); phy->is_iface_clk_enabled = false; } } -EXPORT_SYMBOL_GPL(ufs_qcom_phy_disable_iface_clk); int ufs_qcom_phy_start_serdes(struct phy *generic_phy) { @@ -661,13 +651,20 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy) goto out_disable_phy; } - err = ufs_qcom_phy_enable_ref_clk(generic_phy); + err = ufs_qcom_phy_enable_iface_clk(phy_common); if (err) { - dev_err(dev, "%s enable phy ref clock failed, err=%d\n", + dev_err(dev, "%s enable phy iface clock failed, err=%d\n", __func__, err); goto out_disable_pll; } + err = ufs_qcom_phy_enable_ref_clk(phy_common); + if (err) { + dev_err(dev, "%s enable phy ref clock failed, err=%d\n", + __func__, err); + goto out_disable_iface_clk; + } + /* enable device PHY ref_clk pad rail */ if (phy_common->vddp_ref_clk.reg) { err = ufs_qcom_phy_enable_vreg(dev, @@ -683,7 +680,9 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy) goto out; out_disable_ref_clk: - ufs_qcom_phy_disable_ref_clk(generic_phy); + ufs_qcom_phy_disable_ref_clk(phy_common); +out_disable_iface_clk: + ufs_qcom_phy_disable_iface_clk(phy_common); out_disable_pll: ufs_qcom_phy_disable_vreg(dev, &phy_common->vdda_pll); out_disable_phy: @@ -702,7 +701,8 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy) if (phy_common->vddp_ref_clk.reg) ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vddp_ref_clk); - ufs_qcom_phy_disable_ref_clk(generic_phy); + ufs_qcom_phy_disable_ref_clk(phy_common); + ufs_qcom_phy_disable_iface_clk(phy_common); ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vdda_pll); ufs_qcom_phy_disable_vreg(phy_common->dev, &phy_common->vdda_phy); diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 3c4f602eecd2..5f70a35c053f 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -1114,17 +1114,8 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on, return 0; if (on && (status == POST_CHANGE)) { - err = ufs_qcom_phy_enable_iface_clk(host->generic_phy); - if (err) - goto out; + phy_power_on(host->generic_phy); - err = ufs_qcom_phy_enable_ref_clk(host->generic_phy); - if (err) { - dev_err(hba->dev, "%s enable phy ref clock failed, err=%d\n", - __func__, err); - ufs_qcom_phy_disable_iface_clk(host->generic_phy); - goto out; - } /* enable the device ref clock for HS mode*/ if (ufshcd_is_hs_mode(&hba->pwr_info)) ufs_qcom_dev_ref_clk_ctrl(host, true); @@ -1133,13 +1124,14 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on, ufs_qcom_update_bus_bw_vote(host); } else if (!on && (status == PRE_CHANGE)) { - - /* M-PHY RMMI interface clocks can be turned off */ - ufs_qcom_phy_disable_iface_clk(host->generic_phy); - if (!ufs_qcom_is_link_active(hba)) + if (!ufs_qcom_is_link_active(hba)) { /* disable device ref_clk */ ufs_qcom_dev_ref_clk_ctrl(host, false); + /* powering off PHY during aggressive clk gating */ + phy_power_off(host->generic_phy); + } + vote = host->bus_vote.min_bw_vote; } @@ -1148,7 +1140,6 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on, dev_err(hba->dev, "%s: set bus vote failed %d\n", __func__, err); -out: return err; } diff --git a/include/linux/phy/phy-qcom-ufs.h b/include/linux/phy/phy-qcom-ufs.h index 9d18e9f948e9..35c070ea6ea3 100644 --- a/include/linux/phy/phy-qcom-ufs.h +++ b/include/linux/phy/phy-qcom-ufs.h @@ -17,22 +17,6 @@ #include "phy.h" -/** - * ufs_qcom_phy_enable_ref_clk() - Enable the phy - * ref clock. - * @phy: reference to a generic phy - * - * returns 0 for success, and non-zero for error. - */ -int ufs_qcom_phy_enable_ref_clk(struct phy *phy); - -/** - * ufs_qcom_phy_disable_ref_clk() - Disable the phy - * ref clock. - * @phy: reference to a generic phy. - */ -void ufs_qcom_phy_disable_ref_clk(struct phy *phy); - /** * ufs_qcom_phy_enable_dev_ref_clk() - Enable the device * ref clock. @@ -47,8 +31,6 @@ void ufs_qcom_phy_enable_dev_ref_clk(struct phy *phy); */ void ufs_qcom_phy_disable_dev_ref_clk(struct phy *phy); -int ufs_qcom_phy_enable_iface_clk(struct phy *phy); -void ufs_qcom_phy_disable_iface_clk(struct phy *phy); int ufs_qcom_phy_start_serdes(struct phy *phy); int ufs_qcom_phy_set_tx_lane_enable(struct phy *phy, u32 tx_lanes); int ufs_qcom_phy_calibrate_phy(struct phy *phy, bool is_rate_B); -- cgit v1.2.3 From 3d4640f1cf84c6f40af356d6682205bf8d491731 Mon Sep 17 00:00:00 2001 From: Vivek Gautam Date: Tue, 8 Nov 2016 15:37:49 +0530 Subject: phy: qcom-ufs: Remove common layer phy exit callback The common layer phy exit callback ufs_qcom_phy_exit() calls phy_power_off() that has no meaning when phy_power_off() callback is already registered with the phy provider and the consumer makes use of the same. Instead, add a no-op specific phy_exit() callback for now to add the exit sequence at a later point. Signed-off-by: Vivek Gautam Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/phy/phy-qcom-ufs-i.h | 1 - drivers/phy/phy-qcom-ufs-qmp-14nm.c | 7 ++++++- drivers/phy/phy-qcom-ufs-qmp-20nm.c | 7 ++++++- drivers/phy/phy-qcom-ufs.c | 17 ++++++----------- 4 files changed, 18 insertions(+), 14 deletions(-) (limited to 'drivers/phy') diff --git a/drivers/phy/phy-qcom-ufs-i.h b/drivers/phy/phy-qcom-ufs-i.h index 69e836d0ec3e..d505d98cf5f8 100644 --- a/drivers/phy/phy-qcom-ufs-i.h +++ b/drivers/phy/phy-qcom-ufs-i.h @@ -141,7 +141,6 @@ struct ufs_qcom_phy_specific_ops { struct ufs_qcom_phy *get_ufs_qcom_phy(struct phy *generic_phy); int ufs_qcom_phy_power_on(struct phy *generic_phy); int ufs_qcom_phy_power_off(struct phy *generic_phy); -int ufs_qcom_phy_exit(struct phy *generic_phy); int ufs_qcom_phy_init_clks(struct ufs_qcom_phy *phy_common); int ufs_qcom_phy_init_vregulators(struct ufs_qcom_phy *phy_common); int ufs_qcom_phy_remove(struct phy *generic_phy, diff --git a/drivers/phy/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/phy-qcom-ufs-qmp-14nm.c index ae74614baeb2..c71c84734916 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-14nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-14nm.c @@ -47,6 +47,11 @@ static int ufs_qcom_phy_qmp_14nm_init(struct phy *generic_phy) return 0; } +static int ufs_qcom_phy_qmp_14nm_exit(struct phy *generic_phy) +{ + return 0; +} + static void ufs_qcom_phy_qmp_14nm_power_control(struct ufs_qcom_phy *phy, bool val) { @@ -94,7 +99,7 @@ static int ufs_qcom_phy_qmp_14nm_is_pcs_ready(struct ufs_qcom_phy *phy_common) static const struct phy_ops ufs_qcom_phy_qmp_14nm_phy_ops = { .init = ufs_qcom_phy_qmp_14nm_init, - .exit = ufs_qcom_phy_exit, + .exit = ufs_qcom_phy_qmp_14nm_exit, .power_on = ufs_qcom_phy_power_on, .power_off = ufs_qcom_phy_power_off, .owner = THIS_MODULE, diff --git a/drivers/phy/phy-qcom-ufs-qmp-20nm.c b/drivers/phy/phy-qcom-ufs-qmp-20nm.c index dfc51755d661..1a26a64e06d3 100644 --- a/drivers/phy/phy-qcom-ufs-qmp-20nm.c +++ b/drivers/phy/phy-qcom-ufs-qmp-20nm.c @@ -66,6 +66,11 @@ static int ufs_qcom_phy_qmp_20nm_init(struct phy *generic_phy) return 0; } +static int ufs_qcom_phy_qmp_20nm_exit(struct phy *generic_phy) +{ + return 0; +} + static void ufs_qcom_phy_qmp_20nm_power_control(struct ufs_qcom_phy *phy, bool val) { @@ -152,7 +157,7 @@ static int ufs_qcom_phy_qmp_20nm_is_pcs_ready(struct ufs_qcom_phy *phy_common) static const struct phy_ops ufs_qcom_phy_qmp_20nm_phy_ops = { .init = ufs_qcom_phy_qmp_20nm_init, - .exit = ufs_qcom_phy_exit, + .exit = ufs_qcom_phy_qmp_20nm_exit, .power_on = ufs_qcom_phy_power_on, .power_off = ufs_qcom_phy_power_off, .owner = THIS_MODULE, diff --git a/drivers/phy/phy-qcom-ufs.c b/drivers/phy/phy-qcom-ufs.c index fdd9b901983f..c69568b8543d 100644 --- a/drivers/phy/phy-qcom-ufs.c +++ b/drivers/phy/phy-qcom-ufs.c @@ -602,17 +602,6 @@ int ufs_qcom_phy_calibrate_phy(struct phy *generic_phy, bool is_rate_B) } EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate_phy); -int ufs_qcom_phy_exit(struct phy *generic_phy) -{ - struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy); - - if (ufs_qcom_phy->is_powered_on) - phy_power_off(generic_phy); - - return 0; -} -EXPORT_SYMBOL_GPL(ufs_qcom_phy_exit); - int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy) { struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy); @@ -634,6 +623,9 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy) struct device *dev = phy_common->dev; int err; + if (phy_common->is_powered_on) + return 0; + err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vdda_phy); if (err) { dev_err(dev, "%s enable vdda_phy failed, err=%d\n", @@ -696,6 +688,9 @@ int ufs_qcom_phy_power_off(struct phy *generic_phy) { struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy); + if (!phy_common->is_powered_on) + return 0; + phy_common->phy_spec_ops->power_control(phy_common, false); if (phy_common->vddp_ref_clk.reg) -- cgit v1.2.3