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3e679bde52
Implement VBUS session handling for FOTG210. This is mainly used by the UDC driver which needs to call down to the FOTG210 core and enable/disable VBUS, as this needs to be handled outside of the HCD and UDC drivers, by platform specific glue code. The Gemini has a special bit in a system register to turn VBUS on and off so we implement this in the FOTG210 core. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20230103-gemini-fotg210-usb-v2-7-100388af9810@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __FOTG210_H
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#define __FOTG210_H
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enum gemini_port {
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GEMINI_PORT_NONE = 0,
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GEMINI_PORT_0,
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GEMINI_PORT_1,
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};
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struct fotg210 {
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struct device *dev;
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struct resource *res;
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void __iomem *base;
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struct clk *pclk;
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struct regmap *map;
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enum gemini_port port;
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};
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void fotg210_vbus(struct fotg210 *fotg, bool enable);
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#ifdef CONFIG_USB_FOTG210_HCD
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int fotg210_hcd_probe(struct platform_device *pdev, struct fotg210 *fotg);
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int fotg210_hcd_remove(struct platform_device *pdev);
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int fotg210_hcd_init(void);
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void fotg210_hcd_cleanup(void);
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#else
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static inline int fotg210_hcd_probe(struct platform_device *pdev,
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struct fotg210 *fotg)
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{
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return 0;
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}
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static inline int fotg210_hcd_remove(struct platform_device *pdev)
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{
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return 0;
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}
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static inline int fotg210_hcd_init(void)
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{
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return 0;
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}
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static inline void fotg210_hcd_cleanup(void)
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{
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}
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#endif
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#ifdef CONFIG_USB_FOTG210_UDC
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int fotg210_udc_probe(struct platform_device *pdev, struct fotg210 *fotg);
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int fotg210_udc_remove(struct platform_device *pdev);
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#else
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static inline int fotg210_udc_probe(struct platform_device *pdev,
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struct fotg210 *fotg)
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{
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return 0;
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}
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static inline int fotg210_udc_remove(struct platform_device *pdev)
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{
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return 0;
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}
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#endif
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#endif /* __FOTG210_H */
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