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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 <vivek.gautam@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Vivek Gautam 2016-11-08 15:37:42 +05:30 committed by Martin K. Petersen
parent add78fc057
commit 89bd296b78
4 changed files with 37 additions and 57 deletions
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6
drivers/phy/phy-qcom-ufs-i.h
View File

@ -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,

4
drivers/phy/phy-qcom-ufs-qmp-14nm.c
View File

@ -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);

4
drivers/phy/phy-qcom-ufs-qmp-20nm.c
View File

@ -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);

80
drivers/phy/phy-qcom-ufs.c
View File

@ -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 @@ ufs_qcom_phy_init_clks(struct phy *generic_phy,
}
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 @@ static int __ufs_qcom_phy_init_vreg(struct phy *phy,
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 @@ int ufs_qcom_phy_cfg_vreg(struct phy *phy,
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 @@ int ufs_qcom_phy_enable_ref_clk(struct phy *generic_phy)
}
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;