aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/phy
diff options
context:
space:
mode:
authorFrank Wang <frank.wang@rock-chips.com>2017-08-11 16:07:47 +0800
committerKishon Vijay Abraham I <kishon@ti.com>2017-08-22 10:11:19 +0530
commit1543645c3119da117d4cc6fb664c74157e66f237 (patch)
tree509ca1c14237cef52aee5d1d635873fb394dcde7 /drivers/phy
parent4b63743cdb47281466cd591ce7a2ae2512b23078 (diff)
phy: rockchip-inno-usb2: add support for rockchip,usbgrf property
The registers of usb-phy are distributed in grf and usbgrf on some Rockchip SoCs (e.g RV1108), this patch add a new rockchip,usbgrf property to support this companion grf design. Signed-off-by: Frank Wang <frank.wang@rock-chips.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/phy')
-rw-r--r--drivers/phy/rockchip/phy-rockchip-inno-usb2.c109
1 files changed, 71 insertions, 38 deletions
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index 626883d9d176..fb593ccb22d6 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -202,6 +202,7 @@ struct rockchip_usb2phy_port {
/**
* struct rockchip_usb2phy: usb2.0 phy driver data.
* @grf: General Register Files regmap.
+ * @usbgrf: USB General Register Files regmap.
* @clk: clock struct of phy input clk.
* @clk480m: clock struct of phy output clk.
* @clk_hw: clock struct of phy output clk management.
@@ -216,6 +217,7 @@ struct rockchip_usb2phy_port {
struct rockchip_usb2phy {
struct device *dev;
struct regmap *grf;
+ struct regmap *usbgrf;
struct clk *clk;
struct clk *clk480m;
struct clk_hw clk480m_hw;
@@ -227,7 +229,12 @@ struct rockchip_usb2phy {
struct rockchip_usb2phy_port ports[USB2PHY_NUM_PORTS];
};
-static inline int property_enable(struct rockchip_usb2phy *rphy,
+static inline struct regmap *get_reg_base(struct rockchip_usb2phy *rphy)
+{
+ return rphy->usbgrf == NULL ? rphy->grf : rphy->usbgrf;
+}
+
+static inline int property_enable(struct regmap *base,
const struct usb2phy_reg *reg, bool en)
{
unsigned int val, mask, tmp;
@@ -236,17 +243,17 @@ static inline int property_enable(struct rockchip_usb2phy *rphy,
mask = GENMASK(reg->bitend, reg->bitstart);
val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT);
- return regmap_write(rphy->grf, reg->offset, val);
+ return regmap_write(base, reg->offset, val);
}
-static inline bool property_enabled(struct rockchip_usb2phy *rphy,
+static inline bool property_enabled(struct regmap *base,
const struct usb2phy_reg *reg)
{
int ret;
unsigned int tmp, orig;
unsigned int mask = GENMASK(reg->bitend, reg->bitstart);
- ret = regmap_read(rphy->grf, reg->offset, &orig);
+ ret = regmap_read(base, reg->offset, &orig);
if (ret)
return false;
@@ -258,11 +265,12 @@ static int rockchip_usb2phy_clk480m_prepare(struct clk_hw *hw)
{
struct rockchip_usb2phy *rphy =
container_of(hw, struct rockchip_usb2phy, clk480m_hw);
+ struct regmap *base = get_reg_base(rphy);
int ret;
/* turn on 480m clk output if it is off */
- if (!property_enabled(rphy, &rphy->phy_cfg->clkout_ctl)) {
- ret = property_enable(rphy, &rphy->phy_cfg->clkout_ctl, true);
+ if (!property_enabled(base, &rphy->phy_cfg->clkout_ctl)) {
+ ret = property_enable(base, &rphy->phy_cfg->clkout_ctl, true);
if (ret)
return ret;
@@ -277,17 +285,19 @@ static void rockchip_usb2phy_clk480m_unprepare(struct clk_hw *hw)
{
struct rockchip_usb2phy *rphy =
container_of(hw, struct rockchip_usb2phy, clk480m_hw);
+ struct regmap *base = get_reg_base(rphy);
/* turn off 480m clk output */
- property_enable(rphy, &rphy->phy_cfg->clkout_ctl, false);
+ property_enable(base, &rphy->phy_cfg->clkout_ctl, false);
}
static int rockchip_usb2phy_clk480m_prepared(struct clk_hw *hw)
{
struct rockchip_usb2phy *rphy =
container_of(hw, struct rockchip_usb2phy, clk480m_hw);
+ struct regmap *base = get_reg_base(rphy);
- return property_enabled(rphy, &rphy->phy_cfg->clkout_ctl);
+ return property_enabled(base, &rphy->phy_cfg->clkout_ctl);
}
static unsigned long
@@ -409,13 +419,13 @@ static int rockchip_usb2phy_init(struct phy *phy)
if (rport->mode != USB_DR_MODE_HOST &&
rport->mode != USB_DR_MODE_UNKNOWN) {
/* clear bvalid status and enable bvalid detect irq */
- ret = property_enable(rphy,
+ ret = property_enable(rphy->grf,
&rport->port_cfg->bvalid_det_clr,
true);
if (ret)
goto out;
- ret = property_enable(rphy,
+ ret = property_enable(rphy->grf,
&rport->port_cfg->bvalid_det_en,
true);
if (ret)
@@ -429,11 +439,13 @@ static int rockchip_usb2phy_init(struct phy *phy)
}
} else if (rport->port_id == USB2PHY_PORT_HOST) {
/* clear linestate and enable linestate detect irq */
- ret = property_enable(rphy, &rport->port_cfg->ls_det_clr, true);
+ ret = property_enable(rphy->grf,
+ &rport->port_cfg->ls_det_clr, true);
if (ret)
goto out;
- ret = property_enable(rphy, &rport->port_cfg->ls_det_en, true);
+ ret = property_enable(rphy->grf,
+ &rport->port_cfg->ls_det_en, true);
if (ret)
goto out;
@@ -449,6 +461,7 @@ static int rockchip_usb2phy_power_on(struct phy *phy)
{
struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy);
struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);
+ struct regmap *base = get_reg_base(rphy);
int ret;
dev_dbg(&rport->phy->dev, "port power on\n");
@@ -460,7 +473,7 @@ static int rockchip_usb2phy_power_on(struct phy *phy)
if (ret)
return ret;
- ret = property_enable(rphy, &rport->port_cfg->phy_sus, false);
+ ret = property_enable(base, &rport->port_cfg->phy_sus, false);
if (ret)
return ret;
@@ -475,6 +488,7 @@ static int rockchip_usb2phy_power_off(struct phy *phy)
{
struct rockchip_usb2phy_port *rport = phy_get_drvdata(phy);
struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);
+ struct regmap *base = get_reg_base(rphy);
int ret;
dev_dbg(&rport->phy->dev, "port power off\n");
@@ -482,7 +496,7 @@ static int rockchip_usb2phy_power_off(struct phy *phy)
if (rport->suspended)
return 0;
- ret = property_enable(rphy, &rport->port_cfg->phy_sus, true);
+ ret = property_enable(base, &rport->port_cfg->phy_sus, true);
if (ret)
return ret;
@@ -526,11 +540,11 @@ static void rockchip_usb2phy_otg_sm_work(struct work_struct *work)
bool vbus_attach, sch_work, notify_charger;
if (rport->utmi_avalid)
- vbus_attach =
- property_enabled(rphy, &rport->port_cfg->utmi_avalid);
+ vbus_attach = property_enabled(rphy->grf,
+ &rport->port_cfg->utmi_avalid);
else
- vbus_attach =
- property_enabled(rphy, &rport->port_cfg->utmi_bvalid);
+ vbus_attach = property_enabled(rphy->grf,
+ &rport->port_cfg->utmi_bvalid);
sch_work = false;
notify_charger = false;
@@ -650,22 +664,28 @@ static const char *chg_to_string(enum power_supply_type chg_type)
static void rockchip_chg_enable_dcd(struct rockchip_usb2phy *rphy,
bool en)
{
- property_enable(rphy, &rphy->phy_cfg->chg_det.rdm_pdwn_en, en);
- property_enable(rphy, &rphy->phy_cfg->chg_det.idp_src_en, en);
+ struct regmap *base = get_reg_base(rphy);
+
+ property_enable(base, &rphy->phy_cfg->chg_det.rdm_pdwn_en, en);
+ property_enable(base, &rphy->phy_cfg->chg_det.idp_src_en, en);
}
static void rockchip_chg_enable_primary_det(struct rockchip_usb2phy *rphy,
bool en)
{
- property_enable(rphy, &rphy->phy_cfg->chg_det.vdp_src_en, en);
- property_enable(rphy, &rphy->phy_cfg->chg_det.idm_sink_en, en);
+ struct regmap *base = get_reg_base(rphy);
+
+ property_enable(base, &rphy->phy_cfg->chg_det.vdp_src_en, en);
+ property_enable(base, &rphy->phy_cfg->chg_det.idm_sink_en, en);
}
static void rockchip_chg_enable_secondary_det(struct rockchip_usb2phy *rphy,
bool en)
{
- property_enable(rphy, &rphy->phy_cfg->chg_det.vdm_src_en, en);
- property_enable(rphy, &rphy->phy_cfg->chg_det.idp_sink_en, en);
+ struct regmap *base = get_reg_base(rphy);
+
+ property_enable(base, &rphy->phy_cfg->chg_det.vdm_src_en, en);
+ property_enable(base, &rphy->phy_cfg->chg_det.idp_sink_en, en);
}
#define CHG_DCD_POLL_TIME (100 * HZ / 1000)
@@ -677,6 +697,7 @@ static void rockchip_chg_detect_work(struct work_struct *work)
struct rockchip_usb2phy_port *rport =
container_of(work, struct rockchip_usb2phy_port, chg_work.work);
struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);
+ struct regmap *base = get_reg_base(rphy);
bool is_dcd, tmout, vout;
unsigned long delay;
@@ -687,7 +708,7 @@ static void rockchip_chg_detect_work(struct work_struct *work)
if (!rport->suspended)
rockchip_usb2phy_power_off(rport->phy);
/* put the controller in non-driving mode */
- property_enable(rphy, &rphy->phy_cfg->chg_det.opmode, false);
+ property_enable(base, &rphy->phy_cfg->chg_det.opmode, false);
/* Start DCD processing stage 1 */
rockchip_chg_enable_dcd(rphy, true);
rphy->chg_state = USB_CHG_STATE_WAIT_FOR_DCD;
@@ -696,7 +717,8 @@ static void rockchip_chg_detect_work(struct work_struct *work)
break;
case USB_CHG_STATE_WAIT_FOR_DCD:
/* get data contact detection status */
- is_dcd = property_enabled(rphy, &rphy->phy_cfg->chg_det.dp_det);
+ is_dcd = property_enabled(rphy->grf,
+ &rphy->phy_cfg->chg_det.dp_det);
tmout = ++rphy->dcd_retries == CHG_DCD_MAX_RETRIES;
/* stage 2 */
if (is_dcd || tmout) {
@@ -713,7 +735,8 @@ static void rockchip_chg_detect_work(struct work_struct *work)
}
break;
case USB_CHG_STATE_DCD_DONE:
- vout = property_enabled(rphy, &rphy->phy_cfg->chg_det.cp_det);
+ vout = property_enabled(rphy->grf,
+ &rphy->phy_cfg->chg_det.cp_det);
rockchip_chg_enable_primary_det(rphy, false);
if (vout) {
/* Voltage Source on DM, Probe on DP */
@@ -734,7 +757,8 @@ static void rockchip_chg_detect_work(struct work_struct *work)
}
break;
case USB_CHG_STATE_PRIMARY_DONE:
- vout = property_enabled(rphy, &rphy->phy_cfg->chg_det.dcp_det);
+ vout = property_enabled(rphy->grf,
+ &rphy->phy_cfg->chg_det.dcp_det);
/* Turn off voltage source */
rockchip_chg_enable_secondary_det(rphy, false);
if (vout)
@@ -748,7 +772,7 @@ static void rockchip_chg_detect_work(struct work_struct *work)
/* fall through */
case USB_CHG_STATE_DETECTED:
/* put the controller in normal mode */
- property_enable(rphy, &rphy->phy_cfg->chg_det.opmode, true);
+ property_enable(base, &rphy->phy_cfg->chg_det.opmode, true);
rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);
dev_info(&rport->phy->dev, "charger = %s\n",
chg_to_string(rphy->chg_type));
@@ -790,8 +814,7 @@ static void rockchip_usb2phy_sm_work(struct work_struct *work)
if (ret < 0)
goto next_schedule;
- ret = regmap_read(rphy->grf, rport->port_cfg->utmi_hstdet.offset,
- &uhd);
+ ret = regmap_read(rphy->grf, rport->port_cfg->utmi_hstdet.offset, &uhd);
if (ret < 0)
goto next_schedule;
@@ -845,8 +868,8 @@ static void rockchip_usb2phy_sm_work(struct work_struct *work)
* activate the linestate detection to get the next device
* plug-in irq.
*/
- property_enable(rphy, &rport->port_cfg->ls_det_clr, true);
- property_enable(rphy, &rport->port_cfg->ls_det_en, true);
+ property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true);
+ property_enable(rphy->grf, &rport->port_cfg->ls_det_en, true);
/*
* we don't need to rearm the delayed work when the phy port
@@ -869,14 +892,14 @@ static irqreturn_t rockchip_usb2phy_linestate_irq(int irq, void *data)
struct rockchip_usb2phy_port *rport = data;
struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);
- if (!property_enabled(rphy, &rport->port_cfg->ls_det_st))
+ if (!property_enabled(rphy->grf, &rport->port_cfg->ls_det_st))
return IRQ_NONE;
mutex_lock(&rport->mutex);
/* disable linestate detect irq and clear its status */
- property_enable(rphy, &rport->port_cfg->ls_det_en, false);
- property_enable(rphy, &rport->port_cfg->ls_det_clr, true);
+ property_enable(rphy->grf, &rport->port_cfg->ls_det_en, false);
+ property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true);
mutex_unlock(&rport->mutex);
@@ -896,13 +919,13 @@ static irqreturn_t rockchip_usb2phy_bvalid_irq(int irq, void *data)
struct rockchip_usb2phy_port *rport = data;
struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);
- if (!property_enabled(rphy, &rport->port_cfg->bvalid_det_st))
+ if (!property_enabled(rphy->grf, &rport->port_cfg->bvalid_det_st))
return IRQ_NONE;
mutex_lock(&rport->mutex);
/* clear bvalid detect irq pending status */
- property_enable(rphy, &rport->port_cfg->bvalid_det_clr, true);
+ property_enable(rphy->grf, &rport->port_cfg->bvalid_det_clr, true);
mutex_unlock(&rport->mutex);
@@ -1045,6 +1068,16 @@ static int rockchip_usb2phy_probe(struct platform_device *pdev)
if (IS_ERR(rphy->grf))
return PTR_ERR(rphy->grf);
+ if (of_device_is_compatible(np, "rockchip,rv1108-usb2phy")) {
+ rphy->usbgrf =
+ syscon_regmap_lookup_by_phandle(dev->of_node,
+ "rockchip,usbgrf");
+ if (IS_ERR(rphy->usbgrf))
+ return PTR_ERR(rphy->usbgrf);
+ } else {
+ rphy->usbgrf = NULL;
+ }
+
if (of_property_read_u32(np, "reg", &reg)) {
dev_err(dev, "the reg property is not assigned in %s node\n",
np->name);

Privacy Policy