On Tue, May 28, 2019 at 11:59:48PM -0700, Andrey Smirnov wrote: > Since this driver already handles changer detction state, copy the > workaround code currently residing in arch/arm/mach-imx/anatop.c into > this drier to consolidate the places modifying it. > > Signed-off-by: Andrey Smirnov <andrew.smir...@gmail.com> > Cc: Chris Healy <cphe...@gmail.com> > Cc: Felipe Balbi <ba...@kernel.org> > Cc: Shawn Guo <shawn...@kernel.org> > Cc: Fabio Estevam <feste...@gmail.com> > Cc: NXP Linux Team <linux-...@nxp.com> > Cc: linux-...@vger.kernel.org > Cc: linux-arm-ker...@lists.infradead.org > Cc: linux-kernel@vger.kernel.org
Acked-by: Shawn Guo <shawn...@kernel.org> > --- > > The intent of this patch is to consolidate all of the code maipulating > charge detection state to a signle place and if this patch is agreed > upon I plan to follow it up with this change: > > https://github.com/ndreys/linux/commit/7248f2b85b4706760fd33d2ff970e2ea12d3bea7 > > Thanks, > Andrey Smirnov > > drivers/usb/phy/phy-mxs-usb.c | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c > index 1b1bb0ad40c3..6fa16ab31e2e 100644 > --- a/drivers/usb/phy/phy-mxs-usb.c > +++ b/drivers/usb/phy/phy-mxs-usb.c > @@ -63,6 +63,7 @@ > > #define ANADIG_USB1_CHRG_DETECT_SET 0x1b4 > #define ANADIG_USB1_CHRG_DETECT_CLR 0x1b8 > +#define ANADIG_USB2_CHRG_DETECT_SET 0x214 > #define ANADIG_USB1_CHRG_DETECT_EN_B BIT(20) > #define ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B BIT(19) > #define ANADIG_USB1_CHRG_DETECT_CHK_CONTACT BIT(18) > @@ -250,6 +251,19 @@ static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) > if (mxs_phy->data->flags & MXS_PHY_NEED_IP_FIX) > writel(BM_USBPHY_IP_FIX, base + HW_USBPHY_IP_SET); > > + if (mxs_phy->regmap_anatop) { > + unsigned int reg = mxs_phy->port_id ? > + ANADIG_USB1_CHRG_DETECT_SET : > + ANADIG_USB2_CHRG_DETECT_SET; > + /* > + * The external charger detector needs to be disabled, > + * or the signal at DP will be poor > + */ > + regmap_write(mxs_phy->regmap_anatop, reg, > + ANADIG_USB1_CHRG_DETECT_EN_B | > + ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B); > + } > + > mxs_phy_tx_init(mxs_phy); > > return 0; > -- > 2.21.0 >
