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Add a per-device property to include real supply names and keep generic names as a fallback mechanism for backward compatibility. Signed-off-by: Javier Carrasco --- drivers/usb/misc/onboard_usb_dev.c | 54 ++++++++++++++++++++------------------ drivers/usb/misc/onboard_usb_dev.h | 23 ++++++++++++++++ 2 files changed, 52 insertions(+), 25 deletions(-) diff --git a/drivers/usb/misc/onboard_usb_dev.c b/drivers/usb/misc/onboard_usb_dev.c index f43130a6786f..e66fcac93006 100644 --- a/drivers/usb/misc/onboard_usb_dev.c +++ b/drivers/usb/misc/onboard_usb_dev.c @@ -29,18 +29,6 @@ #include "onboard_usb_dev.h" -/* - * Use generic names, as the actual names might differ between devices. If a new - * device requires more than the currently supported supplies, add a new one - * here. - */ -static const char * const supply_names[] = { - "vdd", - "vdd2", -}; - -#define MAX_SUPPLIES ARRAY_SIZE(supply_names) - static void onboard_dev_attach_usb_driver(struct work_struct *work); static struct usb_device_driver onboard_dev_usbdev_driver; @@ -66,6 +54,33 @@ struct onboard_dev { struct clk *clk; }; +static int onboard_dev_get_regulator_bulk(struct device *dev, + struct onboard_dev *onboard_dev) +{ + unsigned int i; + int err; + + const char * const *supply_names = onboard_dev->pdata->supply_names; + + if (onboard_dev->pdata->num_supplies > MAX_SUPPLIES) + return dev_err_probe(dev, -EINVAL, "max %zu supplies supported!\n", + MAX_SUPPLIES); + + if (!supply_names[0]) + supply_names = generic_supply_names; + + for (i = 0; i < onboard_dev->pdata->num_supplies; i++) + onboard_dev->supplies[i].supply = supply_names[i]; + + err = devm_regulator_bulk_get(dev, onboard_dev->pdata->num_supplies, + onboard_dev->supplies); + if (err) + dev_err(dev, "Failed to get regulator supplies: %pe\n", + ERR_PTR(err)); + + return err; +} + static int onboard_dev_power_on(struct onboard_dev *onboard_dev) { int err; @@ -266,7 +281,6 @@ static int onboard_dev_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct onboard_dev *onboard_dev; - unsigned int i; int err; onboard_dev = devm_kzalloc(dev, sizeof(*onboard_dev), GFP_KERNEL); @@ -277,19 +291,9 @@ static int onboard_dev_probe(struct platform_device *pdev) if (!onboard_dev->pdata) return -EINVAL; - if (onboard_dev->pdata->num_supplies > MAX_SUPPLIES) - return dev_err_probe(dev, -EINVAL, "max %zu supplies supported!\n", - MAX_SUPPLIES); - - for (i = 0; i < onboard_dev->pdata->num_supplies; i++) - onboard_dev->supplies[i].supply = supply_names[i]; - - err = devm_regulator_bulk_get(dev, onboard_dev->pdata->num_supplies, - onboard_dev->supplies); - if (err) { - dev_err(dev, "Failed to get regulator supplies: %pe\n", ERR_PTR(err)); + err = onboard_dev_get_regulator_bulk(dev, onboard_dev); + if (err) return err; - } onboard_dev->clk = devm_clk_get_optional(dev, NULL); if (IS_ERR(onboard_dev->clk)) diff --git a/drivers/usb/misc/onboard_usb_dev.h b/drivers/usb/misc/onboard_usb_dev.h index ebe83e19d818..59dced6bd339 100644 --- a/drivers/usb/misc/onboard_usb_dev.h +++ b/drivers/usb/misc/onboard_usb_dev.h @@ -6,63 +6,86 @@ #ifndef _USB_MISC_ONBOARD_USB_DEV_H #define _USB_MISC_ONBOARD_USB_DEV_H +/* + * Fallback supply names for backwards compatibility. If the device requires + * more than the currently supported supplies, add a new one here, and if + * possible, the real name supplies to the device-specific data. + */ +static const char * const generic_supply_names[] = { + "vdd", + "vdd2", +}; + +#define MAX_SUPPLIES ARRAY_SIZE(generic_supply_names) + struct onboard_dev_pdata { unsigned long reset_us; /* reset pulse width in us */ unsigned int num_supplies; /* number of supplies */ bool is_hub; + const char * const supply_names[MAX_SUPPLIES]; + }; static const struct onboard_dev_pdata microchip_usb424_data = { .reset_us = 1, .num_supplies = 1, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata microchip_usb5744_data = { .reset_us = 0, .num_supplies = 2, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata realtek_rts5411_data = { .reset_us = 0, .num_supplies = 1, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata ti_tusb8041_data = { .reset_us = 3000, .num_supplies = 1, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata cypress_hx3_data = { .reset_us = 10000, .num_supplies = 2, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata cypress_hx2vl_data = { .reset_us = 1, .num_supplies = 1, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata genesys_gl850g_data = { .reset_us = 3, .num_supplies = 1, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata genesys_gl852g_data = { .reset_us = 50, .num_supplies = 1, + .supply_names = { NULL }, .is_hub = true, }; static const struct onboard_dev_pdata vialab_vl817_data = { .reset_us = 10, .num_supplies = 1, + .supply_names = { NULL }, .is_hub = true, };