/* * Renesas USB driver R-Car Gen. 3 initialization and power control * * Copyright (C) 2016 Renesas Electronics Corporation * * 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 #include "common.h" #include "rcar3.h" #define LPSTS 0x102 #define UGCTRL2 0x184 /* 32-bit register */ /* Low Power Status register (LPSTS) */ #define LPSTS_SUSPM 0x4000 /* USB General control register 2 (UGCTRL2), bit[31:6] should be 0 */ #define UGCTRL2_RESERVED_3 0x00000001 /* bit[3:0] should be B'0001 */ #define UGCTRL2_USB0SEL_OTG 0x00000030 static void usbhs_write32(struct usbhs_priv *priv, u32 reg, u32 data) { iowrite32(data, priv->base + reg); } static int usbhs_rcar3_power_ctrl(struct platform_device *pdev, void __iomem *base, int enable) { struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev); usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 | UGCTRL2_USB0SEL_OTG); if (enable) { usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM); /* The controller on R-Car Gen3 needs to wait up to 45 usec */ udelay(45); } else { usbhs_bset(priv, LPSTS, LPSTS_SUSPM, 0); } return 0; } static int usbhs_rcar3_get_id(struct platform_device *pdev) { return USBHS_GADGET; } const struct renesas_usbhs_platform_callback usbhs_rcar3_ops = { .power_ctrl = usbhs_rcar3_power_ctrl, .get_id = usbhs_rcar3_get_id, }; ht'>Tobias Klauser
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authorMarkus Mayer <mmayer@broadcom.com>2016-12-19 12:10:28 -0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2017-01-27 11:43:49 +0100
commit3c223c19aea85d3dda1416c187915f4a30b04b1f (patch)
tree2d2021f8161db3e9ed38b9a966a225b66dff8e58 /fs/afs/vlclient.c
parent9b02c54bc951fca884ba5719f42a27e8240965bf (diff)
cpufreq: brcmstb-avs-cpufreq: properly retrieve P-state upon suspend
The AVS GET_PMAP command does return a P-state along with the P-map information. However, that P-state is the initial P-state when the P-map was first downloaded to AVS. It is *not* the current P-state. Therefore, we explicitly retrieve the P-state using the GET_PSTATE command. Signed-off-by: Markus Mayer <mmayer@broadcom.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'fs/afs/vlclient.c')