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path: root/drivers/usb/gadget/udc/rzv2m_usb3drd.c
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2024-10-04usb: Switch back to struct platform_driver::remove()Uwe Kleine-König
After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/usb to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com> Link: https://lore.kernel.org/r/20240924084329.53094-2-u.kleine-koenig@baylibre.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-05-28usb: gadget/rzv2m_usb3drd: Convert to platform remove callback returning voidUwe Kleine-König
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() is renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230517230239.187727-42-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-04-20usb: Add explicit of.h of_platform.h includeRob Herring
Several USB drivers use of_platform_* functions which are declared in of_platform.h. of_platform.h gets implicitly included by of_device.h, but that is going to be removed soon. Nothing else depends on of_device.h so it can be dropped. Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Acked-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230410232639.1561152-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-16usb: gadget: rzv2m_usb3drd: drop of_match_ptr for ID tableKrzysztof Kozlowski
The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it might not be relevant here). drivers/usb/gadget/udc/rzv2m_usb3drd.c:120:34: error: ‘rzv2m_usb3drd_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20230311173624.263189-4-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-25usb: gadget: Add support for RZ/V2M USB3DRD driverBiju Das
The RZ/V2M USB3.1 Gen1 Interface (USB) composed of a USB3.1 Gen1 Dual Role Device controller (USB3DRD), a USB3.1 Gen1 Host controller (USB3HOST), a USB3.1 Gen1 Peripheral controller (USB3PERI). The reset for both host and peri are located in USB3DRD block. The USB3DRD registers are mapped in the AXI address space of the Peripheral module. Add USB3DRD driver to handle reset for both host and peri modules. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Link: https://lore.kernel.org/r/20230121145853.4792-6-biju.das.jz@bp.renesas.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>