2023-11-27 11:15:16

by Frieder Schrempf

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Subject: [PATCH 1/3] usb: misc: onboard_usb_hub: Print symbolic error names

From: Frieder Schrempf <[email protected]>

Instead of printing the decimal error codes, let's use the more
human-readable symbolic error names provided by the %pe printk
format specifier.

Signed-off-by: Frieder Schrempf <[email protected]>
---
Changes in v2:
* new patch
---
drivers/usb/misc/onboard_usb_hub.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c
index a341b2fbb7b44..077824beffa01 100644
--- a/drivers/usb/misc/onboard_usb_hub.c
+++ b/drivers/usb/misc/onboard_usb_hub.c
@@ -7,6 +7,7 @@

#include <linux/device.h>
#include <linux/export.h>
+#include <linux/err.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/kernel.h>
@@ -68,7 +69,7 @@ static int onboard_hub_power_on(struct onboard_hub *hub)

err = regulator_bulk_enable(hub->pdata->num_supplies, hub->supplies);
if (err) {
- dev_err(hub->dev, "failed to enable supplies: %d\n", err);
+ dev_err(hub->dev, "failed to enable supplies: %pe\n", ERR_PTR(err));
return err;
}

@@ -88,7 +89,7 @@ static int onboard_hub_power_off(struct onboard_hub *hub)

err = regulator_bulk_disable(hub->pdata->num_supplies, hub->supplies);
if (err) {
- dev_err(hub->dev, "failed to disable supplies: %d\n", err);
+ dev_err(hub->dev, "failed to disable supplies: %pe\n", ERR_PTR(err));
return err;
}

@@ -235,7 +236,7 @@ static void onboard_hub_attach_usb_driver(struct work_struct *work)

err = driver_attach(&onboard_hub_usbdev_driver.drvwrap.driver);
if (err)
- pr_err("Failed to attach USB driver: %d\n", err);
+ pr_err("Failed to attach USB driver: %pe\n", ERR_PTR(err));
}

static int onboard_hub_probe(struct platform_device *pdev)
@@ -262,7 +263,7 @@ static int onboard_hub_probe(struct platform_device *pdev)

err = devm_regulator_bulk_get(dev, hub->pdata->num_supplies, hub->supplies);
if (err) {
- dev_err(dev, "Failed to get regulator supplies: %d\n", err);
+ dev_err(dev, "Failed to get regulator supplies: %pe\n", ERR_PTR(err));
return err;
}

--
2.42.1


2023-11-27 11:15:32

by Frieder Schrempf

[permalink] [raw]
Subject: [PATCH 3/3] usb: misc: onboard_usb_hub: Add support for Cypress CY7C6563x

From: Frieder Schrempf <[email protected]>

The Cypress CY7C6563x is a 2/4-port USB 2.0 hub. Add support for
this hub in the driver in order to bring up reset, supply or clock
dependencies.

There is no reset pulse width given in the datasheet so we expect
a minimal value of 1us to be enough. This hasn't been tested though
due to lack of hardware which has the reset connected to a GPIO.

Signed-off-by: Frieder Schrempf <[email protected]>
---
Changes in v2:
* none
---
drivers/usb/misc/onboard_usb_hub.c | 1 +
drivers/usb/misc/onboard_usb_hub.h | 6 ++++++
2 files changed, 7 insertions(+)

diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c
index 0d84b16deab50..0c0b698f008b9 100644
--- a/drivers/usb/misc/onboard_usb_hub.c
+++ b/drivers/usb/misc/onboard_usb_hub.c
@@ -441,6 +441,7 @@ static void onboard_hub_usbdev_disconnect(struct usb_device *udev)
static const struct usb_device_id onboard_hub_id_table[] = {
{ USB_DEVICE(VENDOR_ID_CYPRESS, 0x6504) }, /* CYUSB33{0,1,2}x/CYUSB230x 3.0 */
{ USB_DEVICE(VENDOR_ID_CYPRESS, 0x6506) }, /* CYUSB33{0,1,2}x/CYUSB230x 2.0 */
+ { USB_DEVICE(VENDOR_ID_CYPRESS, 0x6570) }, /* CY7C6563x 2.0 */
{ USB_DEVICE(VENDOR_ID_GENESYS, 0x0608) }, /* Genesys Logic GL850G USB 2.0 */
{ USB_DEVICE(VENDOR_ID_GENESYS, 0x0610) }, /* Genesys Logic GL852G USB 2.0 */
{ USB_DEVICE(VENDOR_ID_GENESYS, 0x0620) }, /* Genesys Logic GL3523 USB 3.1 */
diff --git a/drivers/usb/misc/onboard_usb_hub.h b/drivers/usb/misc/onboard_usb_hub.h
index c4e24a7b92904..67b2cc1e15e67 100644
--- a/drivers/usb/misc/onboard_usb_hub.h
+++ b/drivers/usb/misc/onboard_usb_hub.h
@@ -31,6 +31,11 @@ static const struct onboard_hub_pdata cypress_hx3_data = {
.num_supplies = 2,
};

+static const struct onboard_hub_pdata cypress_hx2vl_data = {
+ .reset_us = 1,
+ .num_supplies = 1,
+};
+
static const struct onboard_hub_pdata genesys_gl850g_data = {
.reset_us = 3,
.num_supplies = 1,
@@ -54,6 +59,7 @@ static const struct of_device_id onboard_hub_match[] = {
{ .compatible = "usb451,8142", .data = &ti_tusb8041_data, },
{ .compatible = "usb4b4,6504", .data = &cypress_hx3_data, },
{ .compatible = "usb4b4,6506", .data = &cypress_hx3_data, },
+ { .compatible = "usb4b4,6570", .data = &cypress_hx2vl_data, },
{ .compatible = "usb5e3,608", .data = &genesys_gl850g_data, },
{ .compatible = "usb5e3,610", .data = &genesys_gl852g_data, },
{ .compatible = "usb5e3,620", .data = &genesys_gl852g_data, },
--
2.42.1

2023-11-27 11:23:59

by Frieder Schrempf

[permalink] [raw]
Subject: Re: [PATCH 1/3] usb: misc: onboard_usb_hub: Print symbolic error names

Sorry, forgot to add the correct version prefix v2 in this series. I
will resend.

On 27.11.23 12:13, Frieder Schrempf wrote:
> From: Frieder Schrempf <[email protected]>
>
> Instead of printing the decimal error codes, let's use the more
> human-readable symbolic error names provided by the %pe printk
> format specifier.
>
> Signed-off-by: Frieder Schrempf <[email protected]>
> ---
> Changes in v2:
> * new patch
> ---
> drivers/usb/misc/onboard_usb_hub.c | 9 +++++----
> 1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c
> index a341b2fbb7b44..077824beffa01 100644
> --- a/drivers/usb/misc/onboard_usb_hub.c
> +++ b/drivers/usb/misc/onboard_usb_hub.c
> @@ -7,6 +7,7 @@
>
> #include <linux/device.h>
> #include <linux/export.h>
> +#include <linux/err.h>
> #include <linux/gpio/consumer.h>
> #include <linux/init.h>
> #include <linux/kernel.h>
> @@ -68,7 +69,7 @@ static int onboard_hub_power_on(struct onboard_hub *hub)
>
> err = regulator_bulk_enable(hub->pdata->num_supplies, hub->supplies);
> if (err) {
> - dev_err(hub->dev, "failed to enable supplies: %d\n", err);
> + dev_err(hub->dev, "failed to enable supplies: %pe\n", ERR_PTR(err));
> return err;
> }
>
> @@ -88,7 +89,7 @@ static int onboard_hub_power_off(struct onboard_hub *hub)
>
> err = regulator_bulk_disable(hub->pdata->num_supplies, hub->supplies);
> if (err) {
> - dev_err(hub->dev, "failed to disable supplies: %d\n", err);
> + dev_err(hub->dev, "failed to disable supplies: %pe\n", ERR_PTR(err));
> return err;
> }
>
> @@ -235,7 +236,7 @@ static void onboard_hub_attach_usb_driver(struct work_struct *work)
>
> err = driver_attach(&onboard_hub_usbdev_driver.drvwrap.driver);
> if (err)
> - pr_err("Failed to attach USB driver: %d\n", err);
> + pr_err("Failed to attach USB driver: %pe\n", ERR_PTR(err));
> }
>
> static int onboard_hub_probe(struct platform_device *pdev)
> @@ -262,7 +263,7 @@ static int onboard_hub_probe(struct platform_device *pdev)
>
> err = devm_regulator_bulk_get(dev, hub->pdata->num_supplies, hub->supplies);
> if (err) {
> - dev_err(dev, "Failed to get regulator supplies: %d\n", err);
> + dev_err(dev, "Failed to get regulator supplies: %pe\n", ERR_PTR(err));
> return err;
> }
>