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Message-Id: <20240325-onboard_xvf3500-v8-1-29e3f9222922@wolfvision.net>
Date: Mon, 25 Mar 2024 10:15:11 +0100
From: Javier Carrasco <javier.carrasco@...fvision.net>
To: Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Matthias Kaehlcke <mka@...omium.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Helen Koike <helen.koike@...labora.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
Russell King <linux@...linux.org.uk>
Cc: linux-sound@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
dri-devel@...ts.freedesktop.org, linux-arm-kernel@...ts.infradead.org,
Javier Carrasco <javier.carrasco@...fvision.net>
Subject: [PATCH v8 1/8] usb: misc: onboard_hub: use device supply names
The current implementation uses generic names for the power supplies,
which conflicts with proper name definitions in the device bindings.
Add a per-device property to include real supply names and keep generic
names for existing devices to keep backward compatibility.
Acked-by: Matthias Kaehlcke <mka@...omium.org>
Signed-off-by: Javier Carrasco <javier.carrasco@...fvision.net>
---
drivers/usb/misc/onboard_usb_hub.c | 49 ++++++++++++++++++++------------------
drivers/usb/misc/onboard_usb_hub.h | 13 ++++++++++
2 files changed, 39 insertions(+), 23 deletions(-)
diff --git a/drivers/usb/misc/onboard_usb_hub.c b/drivers/usb/misc/onboard_usb_hub.c
index c6101ed2d9d4..5308c54aaabe 100644
--- a/drivers/usb/misc/onboard_usb_hub.c
+++ b/drivers/usb/misc/onboard_usb_hub.c
@@ -29,17 +29,6 @@
#include "onboard_usb_hub.h"
-/*
- * Use generic names, as the actual names might differ between hubs. If a new
- * hub 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_hub_attach_usb_driver(struct work_struct *work);
static struct usb_device_driver onboard_hub_usbdev_driver;
@@ -65,6 +54,29 @@ struct onboard_hub {
struct clk *clk;
};
+static int onboard_hub_get_regulators(struct onboard_hub *hub)
+{
+ const char * const *supply_names = hub->pdata->supply_names;
+ unsigned int num_supplies = hub->pdata->num_supplies;
+ struct device *dev = hub->dev;
+ unsigned int i;
+ int err;
+
+ if (num_supplies > MAX_SUPPLIES)
+ return dev_err_probe(dev, -EINVAL, "max %d supplies supported!\n",
+ MAX_SUPPLIES);
+
+ for (i = 0; i < num_supplies; i++)
+ hub->supplies[i].supply = supply_names[i];
+
+ err = devm_regulator_bulk_get(dev, num_supplies, hub->supplies);
+ if (err)
+ dev_err(dev, "Failed to get regulator supplies: %pe\n",
+ ERR_PTR(err));
+
+ return err;
+}
+
static int onboard_hub_power_on(struct onboard_hub *hub)
{
int err;
@@ -253,7 +265,6 @@ static int onboard_hub_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct onboard_hub *hub;
- unsigned int i;
int err;
hub = devm_kzalloc(dev, sizeof(*hub), GFP_KERNEL);
@@ -264,18 +275,11 @@ static int onboard_hub_probe(struct platform_device *pdev)
if (!hub->pdata)
return -EINVAL;
- if (hub->pdata->num_supplies > MAX_SUPPLIES)
- return dev_err_probe(dev, -EINVAL, "max %zu supplies supported!\n",
- MAX_SUPPLIES);
-
- for (i = 0; i < hub->pdata->num_supplies; i++)
- hub->supplies[i].supply = supply_names[i];
+ hub->dev = dev;
- err = devm_regulator_bulk_get(dev, hub->pdata->num_supplies, hub->supplies);
- if (err) {
- dev_err(dev, "Failed to get regulator supplies: %pe\n", ERR_PTR(err));
+ err = onboard_hub_get_regulators(hub);
+ if (err)
return err;
- }
hub->clk = devm_clk_get_optional(dev, NULL);
if (IS_ERR(hub->clk))
@@ -286,7 +290,6 @@ static int onboard_hub_probe(struct platform_device *pdev)
if (IS_ERR(hub->reset_gpio))
return dev_err_probe(dev, PTR_ERR(hub->reset_gpio), "failed to get reset GPIO\n");
- hub->dev = dev;
mutex_init(&hub->lock);
INIT_LIST_HEAD(&hub->udev_list);
diff --git a/drivers/usb/misc/onboard_usb_hub.h b/drivers/usb/misc/onboard_usb_hub.h
index b4b15d45f84d..edbca8aa6ea0 100644
--- a/drivers/usb/misc/onboard_usb_hub.h
+++ b/drivers/usb/misc/onboard_usb_hub.h
@@ -6,59 +6,72 @@
#ifndef _USB_MISC_ONBOARD_USB_HUB_H
#define _USB_MISC_ONBOARD_USB_HUB_H
+#define MAX_SUPPLIES 2
+
struct onboard_hub_pdata {
unsigned long reset_us; /* reset pulse width in us */
unsigned int num_supplies; /* number of supplies */
+ const char * const supply_names[MAX_SUPPLIES];
};
static const struct onboard_hub_pdata microchip_usb424_data = {
.reset_us = 1,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct onboard_hub_pdata microchip_usb5744_data = {
.reset_us = 0,
.num_supplies = 2,
+ .supply_names = { "vdd", "vdd2" },
};
static const struct onboard_hub_pdata realtek_rts5411_data = {
.reset_us = 0,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct onboard_hub_pdata ti_tusb8020b_data = {
.reset_us = 3000,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct onboard_hub_pdata ti_tusb8041_data = {
.reset_us = 3000,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct onboard_hub_pdata cypress_hx3_data = {
.reset_us = 10000,
.num_supplies = 2,
+ .supply_names = { "vdd", "vdd2" },
};
static const struct onboard_hub_pdata cypress_hx2vl_data = {
.reset_us = 1,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct onboard_hub_pdata genesys_gl850g_data = {
.reset_us = 3,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct onboard_hub_pdata genesys_gl852g_data = {
.reset_us = 50,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct onboard_hub_pdata vialab_vl817_data = {
.reset_us = 10,
.num_supplies = 1,
+ .supply_names = { "vdd" },
};
static const struct of_device_id onboard_hub_match[] = {
--
2.40.1
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