/** * ulpi.c - DesignWare USB3 Controller's ULPI PHY interface * * Copyright (C) 2015 Intel Corporation * * Author: Heikki Krogerus * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include #include "core.h" #include "io.h" #define DWC3_ULPI_ADDR(a) \ ((a >= ULPI_EXT_VENDOR_SPECIFIC) ? \ DWC3_GUSB2PHYACC_ADDR(ULPI_ACCESS_EXTENDED) | \ DWC3_GUSB2PHYACC_EXTEND_ADDR(a) : DWC3_GUSB2PHYACC_ADDR(a)) static int dwc3_ulpi_busyloop(struct dwc3 *dwc) { unsigned count = 1000; u32 reg; while (count--) { reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYACC(0)); if (!(reg & DWC3_GUSB2PHYACC_BUSY)) return 0; cpu_relax(); } return -ETIMEDOUT; } static int dwc3_ulpi_read(struct device *dev, u8 addr) { struct dwc3 *dwc = dev_get_drvdata(dev); u32 reg; int ret; reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr); dwc3_writel(dwc->regs, DWC3_GUSB2PHYACC(0), reg); ret = dwc3_ulpi_busyloop(dwc); if (ret) return ret; reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYACC(0)); return DWC3_GUSB2PHYACC_DATA(reg); } static int dwc3_ulpi_write(struct device *dev, u8 addr, u8 val) { struct dwc3 *dwc = dev_get_drvdata(dev); u32 reg; reg = DWC3_GUSB2PHYACC_NEWREGREQ | DWC3_ULPI_ADDR(addr); reg |= DWC3_GUSB2PHYACC_WRITE | val; dwc3_writel(dwc->regs, DWC3_GUSB2PHYACC(0), reg); return dwc3_ulpi_busyloop(dwc); } static const struct ulpi_ops dwc3_ulpi_ops = { .read = dwc3_ulpi_read, .write = dwc3_ulpi_write, }; int dwc3_ulpi_init(struct dwc3 *dwc) { /* Register the interface */ dwc->ulpi = ulpi_register_interface(dwc->dev, &dwc3_ulpi_ops); if (IS_ERR(dwc->ulpi)) { dev_err(dwc->dev, "failed to register ULPI interface"); return PTR_ERR(dwc->ulpi); } return 0; } void dwc3_ulpi_exit(struct dwc3 *dwc) { if (dwc->ulpi) { ulpi_unregister_interface(dwc->ulpi); dwc->ulpi = NULL; } } '>commitdiff
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authorLen Brown <len.brown@intel.com>2016-04-06 23:56:02 -0400
committerLen Brown <len.brown@intel.com>2016-12-01 01:33:15 -0500
commite975db5d528abf5c42adfc50a6b0384993b6280b (patch)
tree4911d3e377bbb4f5bf3a2dd32e217efbbdd5677e /include/net/bluetooth/sco.h
parent43c4f67c966deb1478dc9acbf66ab547287d530f (diff)
tools/power turbostat: tidy up output on Joule counter overflow
The RAPL Joules counter is limited in capacity. Turbostat estimates how soon it can roll-over based on the max TDP of the processor -- which tells us the maximum increment rate. eg. RAPL: 2759 sec. Joule Counter Range, at 95 Watts So if a sample duration is longer than 2759 seconds on this system, '**' replace the decimal place in the display to indicate that the results may be suspect. But the display had an extra ' ' in this case, throwing off the columns. Also, the -J "Joules" option appended an extra "time" column to the display. While this may be useful, it printed the interval time, which may not be the accurate time per processor. Remove this column, which appeared only when using '-J', as we plan to add accurate per-cpu interval times in a future commit. Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'include/net/bluetooth/sco.h')