Commit graph

20 commits

Author SHA1 Message Date
Patrick Delaunay
9406f9735c phy: stm32-usbphyc: usbphyc is a clock provider of ck_usbo_48m clock
ck_usbo_48m is generated by usbphyc PLL and used by OTG controller
for Full-Speed use cases with dedicated Full-Speed transceiver.

ck_usbo_48m is available as soon as the PLL is enabled.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-09-06 13:54:50 +02:00
Patrick Delaunay
3c2db62958 phy: stm32-usbphyc: add counter of PLL consumer
Add the counter of the PLL user n_pll_cons managed by the 2 functions
stm32_usbphyc_pll_enable / stm32_usbphyc_pll_disable.

This counter allow to remove the function stm32_usbphyc_is_init
and it is a preliminary step for ck_usbo_48m introduction.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2022-09-06 13:54:50 +02:00
Patrice Chotard
da6473c0d4 phy: stm32-usbphyc: stm32-usbphyc: Add DT phy tuning support
Add support of phy-tuning properties for sm32-usbphyc's phy tuning
aligned with v5.15 kernel bindings.

Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
2022-05-10 13:56:07 +02:00
Patrick Delaunay
5d81616fb8 phy: stm32-usbphyc: stm32: usbphyc: add protection on phy sub-node
Add protection on presence and order of the phy node sub node
by using the mandatory reg information.

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-10-08 08:19:59 +02:00
Patrick Delaunay
5b4fa85d65 phy: stm32-usbphyc: use connector for vbus-supply with phy-stm32-usbphyc
The vbus-supply is an optional property of sub-node connector node.
and no more in the usb phyc node (in first proposed binding).

This regulator for USB VBUS may be needed for host mode.

See the latest kernel binding for details in
Documentation/devicetree/bindings/phy/phy-stm32-usbphyc.yaml.

  usbphyc_port0: usb-phy@0 {
      reg = <0>;
      phy-supply = <&vdd_usb>;
      #phy-cells = <0>;
      connector {
          compatible = "usb-a-connector";
          vbus-supply = <&vbus_sw>;
      };
  };

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
2021-10-08 08:19:59 +02:00
Patrick Delaunay
0d5fbadeff phy: stm32-usbphyc: migrate trace to dev and log macro
Change pr_debug to log_debug or dev_dbg macro and define LOG_CATEGORY.

Remove the "%s:" __func__  header as it is managed by dev macro
(dev->name is displayed) or log macro (CONFIG_LOGF_FUNC).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2021-01-13 09:52:58 +01:00
Simon Glass
41575d8e4c dm: treewide: Rename auto_alloc_size members to be shorter
This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13 08:00:25 -07:00
Patrick Delaunay
c480138958 phy: stm32: usbphyc: manage optional vbus regulator on phy_power_on/off
This patch adds support for optional vbus regulator.
It is managed on phy_power_on/off calls and may be needed for host mode.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-11-25 12:02:58 +01:00
Sean Anderson
0aeaca622a phy: usbphyc: Fix not calling dev_err with a device
Use the phy's device.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Tested-by: Patrick Delaunay <patrick.delaunay@st.com>
2020-09-30 08:53:36 -04:00
Patrick Delaunay
9f9191a107 phy: usbphyc: use regulator_set_enable_if_allowed for disabling vdd supply
Use regulator_set_enable_if_allowed() api instead of regulator_set_enable()
while disabling vdd supply. This way the driver doesn't see an error
when disabling an always-on regulator.

This patch is needed since the commit f93fab3126 ("Revert 'power:
regulator: Return success on attempt to disable an always-on regulator'")
and use the API introduced by commit cc4a224af2 ("power: regulator:
Introduce regulator_set_enable_if_allowed api").

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
2020-07-28 18:00:05 +02:00
Simon Glass
c05ed00afb common: Drop linux/delay.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Simon Glass
f7ae49fc4f common: Drop log.h from common header
Move this header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:18 -04:00
Simon Glass
336d4615f8 dm: core: Create a new header file for 'compat' features
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.

Move the compatibility features into a separate header file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05 19:33:46 -07:00
Patrick Delaunay
901f6950a4 phy: usbphyc: increase PLL wait timeout
wait 200us to solve USB init issue on device mode
(ums and stm32prog commands)

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-21 10:26:51 +02:00
Patrick Delaunay
e1904abc1b phy: usbphyc: move vdda1v1 and vdda1v8 in phy_init
vdda1v1 and vdda1v8 are used by the PLL.
Both need to be enabled before starting the PLL.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-21 10:26:51 +02:00
Patrick Delaunay
c50151d43f phy: usbphyc: Binding update of vdda supply
Move supply vdda1v1 and vdda1v8 in usbphyc node and
no more in port

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-21 10:26:51 +02:00
Patrick Delaunay
1655f2da84 phy: usbphyc: update xlate with DT binding
Parameter added for port 1, for example:

&usbh_ehci {
	phys = <&usbphyc_port0>;
	phy-names = "usb";
	vbus-supply = <&vbus_sw>;
	status = "okay";
};

&usbotg_hs {
	pinctrl-names = "default";
	pinctrl-0 = <&usbotg_hs_pins_a>;
	phys = <&usbphyc_port1 0>;
	phy-names = "usb2-phy";
	status = "okay";
};

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-21 10:26:51 +02:00
Patrick Delaunay
6841d83cec phy: usbphyc: remove unused variable index
Remove unused field index in struct stm32_usbphyc_phy.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2019-04-21 10:26:51 +02:00
Tom Rini
624d2cae34 SPDX: Fixup SPDX tags in a few new files
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-20 09:47:45 -04:00
Patrice Chotard
3b29121678 phy: add support for STM32 usb phy controller
This patch adds phy tranceiver driver for STM32 USB PHY
Controller (usbphyc) that provides dual port High-Speed
phy for OTG (single port) and EHCI/OHCI host controller
(two ports).
One port of the phy is shared between the two USB controllers
through a UTMI+ switch.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-18 13:17:31 +02:00