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phy: uniphier-usb3hs: Add legacy SoC support for Pro5 

Add legacy SoC support that needs to manage gio clock and reset.
This supports Pro5.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Kunihiko Hayashi 2020-01-30 15:52:42 +09:00 committed by Kishon Vijay Abraham I
parent 9376fa634a
commit e68c2a8a2f
1 changed files with 53 additions and 15 deletions
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68
drivers/phy/socionext/phy-uniphier-usb3hs.c
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@ -66,13 +66,14 @@ struct uniphier_u3hsphy_trim_param {
struct uniphier_u3hsphy_priv {
struct device *dev;
void __iomem *base;
struct clk *clk, *clk_parent, *clk_ext;
struct reset_control *rst, *rst_parent;
struct clk *clk, *clk_parent, *clk_ext, *clk_parent_gio;
struct reset_control *rst, *rst_parent, *rst_parent_gio;
struct regulator *vbus;
const struct uniphier_u3hsphy_soc_data *data;
};
struct uniphier_u3hsphy_soc_data {
bool is_legacy;
int nparams;
const struct uniphier_u3hsphy_param param[MAX_PHY_PARAMS];
u32 config0;
@ -256,11 +257,20 @@ static int uniphier_u3hsphy_init(struct phy *phy)
if (ret)
return ret;
ret = reset_control_deassert(priv->rst_parent);
ret = clk_prepare_enable(priv->clk_parent_gio);
if (ret)
goto out_clk_disable;
if (!priv->data->config0 && !priv->data->config1)
ret = reset_control_deassert(priv->rst_parent);
if (ret)
goto out_clk_gio_disable;
ret = reset_control_deassert(priv->rst_parent_gio);
if (ret)
goto out_rst_assert;
if ((priv->data->is_legacy)
|| (!priv->data->config0 && !priv->data->config1))
return 0;
config0 = priv->data->config0;
@ -280,6 +290,8 @@ static int uniphier_u3hsphy_init(struct phy *phy)
out_rst_assert:
reset_control_assert(priv->rst_parent);
out_clk_gio_disable:
clk_disable_unprepare(priv->clk_parent_gio);
out_clk_disable:
clk_disable_unprepare(priv->clk_parent);
@ -290,7 +302,9 @@ static int uniphier_u3hsphy_exit(struct phy *phy)
{
struct uniphier_u3hsphy_priv *priv = phy_get_drvdata(phy);
reset_control_assert(priv->rst_parent_gio);
reset_control_assert(priv->rst_parent);
clk_disable_unprepare(priv->clk_parent_gio);
clk_disable_unprepare(priv->clk_parent);
return 0;
@ -325,22 +339,34 @@ static int uniphier_u3hsphy_probe(struct platform_device *pdev)
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
priv->clk = devm_clk_get(dev, "phy");
if (IS_ERR(priv->clk))
return PTR_ERR(priv->clk);
if (!priv->data->is_legacy) {
priv->clk = devm_clk_get(dev, "phy");
if (IS_ERR(priv->clk))
return PTR_ERR(priv->clk);
priv->clk_ext = devm_clk_get_optional(dev, "phy-ext");
if (IS_ERR(priv->clk_ext))
return PTR_ERR(priv->clk_ext);
priv->rst = devm_reset_control_get_shared(dev, "phy");
if (IS_ERR(priv->rst))
return PTR_ERR(priv->rst);
} else {
priv->clk_parent_gio = devm_clk_get(dev, "gio");
if (IS_ERR(priv->clk_parent_gio))
return PTR_ERR(priv->clk_parent_gio);
priv->rst_parent_gio =
devm_reset_control_get_shared(dev, "gio");
if (IS_ERR(priv->rst_parent_gio))
return PTR_ERR(priv->rst_parent_gio);
}
priv->clk_parent = devm_clk_get(dev, "link");
if (IS_ERR(priv->clk_parent))
return PTR_ERR(priv->clk_parent);
priv->clk_ext = devm_clk_get_optional(dev, "phy-ext");
if (IS_ERR(priv->clk_ext))
return PTR_ERR(priv->clk_ext);
priv->rst = devm_reset_control_get_shared(dev, "phy");
if (IS_ERR(priv->rst))
return PTR_ERR(priv->rst);
priv->rst_parent = devm_reset_control_get_shared(dev, "link");
if (IS_ERR(priv->rst_parent))
return PTR_ERR(priv->rst_parent);
@ -362,11 +388,18 @@ static int uniphier_u3hsphy_probe(struct platform_device *pdev)
return PTR_ERR_OR_ZERO(phy_provider);
}
static const struct uniphier_u3hsphy_soc_data uniphier_pro5_data = {
.is_legacy = true,
.nparams = 0,
};
static const struct uniphier_u3hsphy_soc_data uniphier_pxs2_data = {
.is_legacy = false,
.nparams = 0,
};
static const struct uniphier_u3hsphy_soc_data uniphier_ld20_data = {
.is_legacy = false,
.nparams = 2,
.param = {
{ LS_SLEW, 1 },
@ -378,6 +411,7 @@ static const struct uniphier_u3hsphy_soc_data uniphier_ld20_data = {
};
static const struct uniphier_u3hsphy_soc_data uniphier_pxs3_data = {
.is_legacy = false,
.nparams = 0,
.trim_func = uniphier_u3hsphy_trim_ld20,
.config0 = 0x92316680,
@ -385,6 +419,10 @@ static const struct uniphier_u3hsphy_soc_data uniphier_pxs3_data = {
};
static const struct of_device_id uniphier_u3hsphy_match[] = {
{
.compatible = "socionext,uniphier-pro5-usb3-hsphy",
.data = &uniphier_pro5_data,
},
{
.compatible = "socionext,uniphier-pxs2-usb3-hsphy",
.data = &uniphier_pxs2_data,