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Thu, 29 Feb 2024 08:35:01 +0000 From: Javier Carrasco Date: Thu, 29 Feb 2024 09:34:50 +0100 Subject: [PATCH v6 7/9] usb: misc: onboard_dev: add support for non-hub devices Message-Id: <20240229-onboard_xvf3500-v6-7-a0aff2947040@wolfvision.net> References: <20240229-onboard_xvf3500-v6-0-a0aff2947040@wolfvision.net> In-Reply-To: <20240229-onboard_xvf3500-v6-0-a0aff2947040@wolfvision.net> To: Liam Girdwood , Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Kaehlcke , Greg Kroah-Hartman , Helen Koike , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Catalin Marinas , Will Deacon , Russell King Cc: linux-sound@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Javier Carrasco X-Mailer: b4 0.14-dev X-Developer-Signature: v=1; a=ed25519-sha256; t=1709195691; l=3959; i=javier.carrasco@wolfvision.net; s=20230509; 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To account for the hub-specific code, add a flag to the device data structure and check its value for hub-specific code. The 'always_powered_in_supend' attribute is only available for hub devices, keeping the driver's default behavior for non-hub devices (keep on in suspend). Signed-off-by: Javier Carrasco Acked-by: Matthias Kaehlcke --- drivers/usb/misc/onboard_usb_dev.c | 25 ++++++++++++++++++++++++- drivers/usb/misc/onboard_usb_dev.h | 10 ++++++++++ 2 files changed, 34 insertions(+), 1 deletion(-) diff --git a/drivers/usb/misc/onboard_usb_dev.c b/drivers/usb/misc/onboard_usb_dev.c index 4ae580445408..f1b174503c44 100644 --- a/drivers/usb/misc/onboard_usb_dev.c +++ b/drivers/usb/misc/onboard_usb_dev.c @@ -261,7 +261,27 @@ static struct attribute *onboard_dev_attrs[] = { &dev_attr_always_powered_in_suspend.attr, NULL, }; -ATTRIBUTE_GROUPS(onboard_dev); + +static umode_t onboard_dev_attrs_are_visible(struct kobject *kobj, + struct attribute *attr, + int n) +{ + struct device *dev = kobj_to_dev(kobj); + struct onboard_dev *onboard_dev = dev_get_drvdata(dev); + + if (attr == &dev_attr_always_powered_in_suspend.attr && + !onboard_dev->pdata->is_hub) + return 0; + + return attr->mode; +} + +static const struct attribute_group onboard_dev_group = { + .is_visible = onboard_dev_attrs_are_visible, + .attrs = onboard_dev_attrs, +}; +__ATTRIBUTE_GROUPS(onboard_dev); + static void onboard_dev_attach_usb_driver(struct work_struct *work) { @@ -286,6 +306,9 @@ static int onboard_dev_probe(struct platform_device *pdev) if (!onboard_dev->pdata) return -EINVAL; + if (!onboard_dev->pdata->is_hub) + onboard_dev->always_powered_in_suspend = true; + onboard_dev->dev = dev; err = onboard_dev_get_regulators(onboard_dev); diff --git a/drivers/usb/misc/onboard_usb_dev.h b/drivers/usb/misc/onboard_usb_dev.h index 4da9f3b7f9e9..58cf8c81b2cf 100644 --- a/drivers/usb/misc/onboard_usb_dev.h +++ b/drivers/usb/misc/onboard_usb_dev.h @@ -12,60 +12,70 @@ struct onboard_dev_pdata { unsigned long reset_us; /* reset pulse width in us */ unsigned int num_supplies; /* number of supplies */ const char * const supply_names[MAX_SUPPLIES]; + bool is_hub; /* true if the device is a HUB */ }; static const struct onboard_dev_pdata microchip_usb424_data = { .reset_us = 1, .num_supplies = 1, .supply_names = { "vdd" }, + .is_hub = true, }; static const struct onboard_dev_pdata microchip_usb5744_data = { .reset_us = 0, .num_supplies = 2, .supply_names = { "vdd", "vdd2" }, + .is_hub = true, }; static const struct onboard_dev_pdata realtek_rts5411_data = { .reset_us = 0, .num_supplies = 1, .supply_names = { "vdd" }, + .is_hub = true, }; static const struct onboard_dev_pdata ti_tusb8041_data = { .reset_us = 3000, .num_supplies = 1, .supply_names = { "vdd" }, + .is_hub = true, }; static const struct onboard_dev_pdata cypress_hx3_data = { .reset_us = 10000, .num_supplies = 2, .supply_names = { "vdd", "vdd2" }, + .is_hub = true, }; static const struct onboard_dev_pdata cypress_hx2vl_data = { .reset_us = 1, .num_supplies = 1, .supply_names = { "vdd" }, + .is_hub = true, }; static const struct onboard_dev_pdata genesys_gl850g_data = { .reset_us = 3, .num_supplies = 1, .supply_names = { "vdd" }, + .is_hub = true, }; static const struct onboard_dev_pdata genesys_gl852g_data = { .reset_us = 50, .num_supplies = 1, .supply_names = { "vdd" }, + .is_hub = true, }; static const struct onboard_dev_pdata vialab_vl817_data = { .reset_us = 10, .num_supplies = 1, .supply_names = { "vdd" }, + .is_hub = true, }; static const struct of_device_id onboard_dev_match[] = {