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phy: exynos5-usbdrd: support HS phy for ExynosAutov920

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Enable UTMI+ phy support for this SoC which is very similar to what
the existing Exynos850 supports.

Add required change in phy driver to support HS phy for this SoC.

Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Pritam Manohar Sutar <pritam.sutar@samsung.com>
Link: https://patch.msgid.link/20251124110453.2887437-3-pritam.sutar@samsung.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Pritam Manohar Sutar
2025-11-24 16:34:49 +05:30
committed by Vinod Koul
parent 28810c0dfe
commit 031314bd37
2 changed files with 125 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

123
drivers/phy/samsung/phy-exynos5-usbdrd.c
View File

@@ -2054,6 +2054,126 @@ static const struct exynos5_usbdrd_phy_drvdata exynos990_usbdrd_phy = {
.n_regulators = ARRAY_SIZE(exynos5_regulator_names),
};
static int exynosautov920_usbdrd_phy_init(struct phy *phy)
{
struct phy_usb_instance *inst = phy_get_drvdata(phy);
struct exynos5_usbdrd_phy *phy_drd = to_usbdrd_phy(inst);
int ret;
ret = clk_bulk_prepare_enable(phy_drd->drv_data->n_clks, phy_drd->clks);
if (ret)
return ret;
/* Bypass PHY isol */
inst->phy_cfg->phy_isol(inst, false);
/* UTMI or PIPE3 specific init */
inst->phy_cfg->phy_init(phy_drd);
clk_bulk_disable_unprepare(phy_drd->drv_data->n_clks, phy_drd->clks);
return 0;
}
static int exynosautov920_usbdrd_phy_exit(struct phy *phy)
{
struct phy_usb_instance *inst = phy_get_drvdata(phy);
struct exynos5_usbdrd_phy *phy_drd = to_usbdrd_phy(inst);
int ret;
ret = clk_bulk_prepare_enable(phy_drd->drv_data->n_clks, phy_drd->clks);
if (ret)
return ret;
exynos850_usbdrd_phy_exit(phy);
/* enable PHY isol */
inst->phy_cfg->phy_isol(inst, true);
clk_bulk_disable_unprepare(phy_drd->drv_data->n_clks, phy_drd->clks);
return 0;
}
static int exynosautov920_usbdrd_phy_power_on(struct phy *phy)
{
struct phy_usb_instance *inst = phy_get_drvdata(phy);
struct exynos5_usbdrd_phy *phy_drd = to_usbdrd_phy(inst);
int ret;
dev_dbg(phy_drd->dev, "Request to power_on usbdrd_phy phy\n");
ret = clk_bulk_prepare_enable(phy_drd->drv_data->n_core_clks,
phy_drd->core_clks);
if (ret)
return ret;
/* Enable supply */
ret = regulator_bulk_enable(phy_drd->drv_data->n_regulators,
phy_drd->regulators);
if (ret) {
dev_err(phy_drd->dev, "Failed to enable PHY regulator(s)\n");
goto fail_supply;
}
return 0;
fail_supply:
clk_bulk_disable_unprepare(phy_drd->drv_data->n_core_clks,
phy_drd->core_clks);
return ret;
}
static int exynosautov920_usbdrd_phy_power_off(struct phy *phy)
{
struct phy_usb_instance *inst = phy_get_drvdata(phy);
struct exynos5_usbdrd_phy *phy_drd = to_usbdrd_phy(inst);
dev_dbg(phy_drd->dev, "Request to power_off usbdrd_phy phy\n");
/* Disable supply */
regulator_bulk_disable(phy_drd->drv_data->n_regulators,
phy_drd->regulators);
clk_bulk_disable_unprepare(phy_drd->drv_data->n_core_clks,
phy_drd->core_clks);
return 0;
}
static const char * const exynosautov920_usb20_regulators[] = {
"dvdd", "vdd18", "vdd33",
};
static const struct phy_ops exynosautov920_usbdrd_phy_ops = {
.init = exynosautov920_usbdrd_phy_init,
.exit = exynosautov920_usbdrd_phy_exit,
.power_on = exynosautov920_usbdrd_phy_power_on,
.power_off = exynosautov920_usbdrd_phy_power_off,
.owner = THIS_MODULE,
};
static const struct exynos5_usbdrd_phy_config phy_cfg_exynosautov920[] = {
{
.id = EXYNOS5_DRDPHY_UTMI,
.phy_isol = exynos5_usbdrd_phy_isol,
.phy_init = exynos850_usbdrd_utmi_init,
},
};
static const struct exynos5_usbdrd_phy_drvdata exynosautov920_usbdrd_phy = {
.phy_cfg = phy_cfg_exynosautov920,
.phy_ops = &exynosautov920_usbdrd_phy_ops,
.pmu_offset_usbdrd0_phy = EXYNOSAUTOV920_PHY_CTRL_USB20,
.clk_names = exynos5_clk_names,
.n_clks = ARRAY_SIZE(exynos5_clk_names),
.core_clk_names = exynos5_core_clk_names,
.n_core_clks = ARRAY_SIZE(exynos5_core_clk_names),
.regulator_names = exynosautov920_usb20_regulators,
.n_regulators = ARRAY_SIZE(exynosautov920_usb20_regulators),
};
static const struct exynos5_usbdrd_phy_config phy_cfg_gs101[] = {
{
.id = EXYNOS5_DRDPHY_UTMI,
@@ -2260,6 +2380,9 @@ static const struct of_device_id exynos5_usbdrd_phy_of_match[] = {
}, {
.compatible = "samsung,exynos990-usbdrd-phy",
.data = &exynos990_usbdrd_phy
}, {
.compatible = "samsung,exynosautov920-usbdrd-phy",
.data = &exynosautov920_usbdrd_phy
},
{ },
};

2
include/linux/soc/samsung/exynos-regs-pmu.h
View File

@@ -1015,4 +1015,6 @@
#define GS101_GRP2_INTR_BID_UPEND (0x0208)
#define GS101_GRP2_INTR_BID_CLEAR (0x020c)
/* exynosautov920 */
#define EXYNOSAUTOV920_PHY_CTRL_USB20 (0x0710)
#endif /* __LINUX_SOC_EXYNOS_REGS_PMU_H */