usb: chipidea: imx: allow to configure oc polarity on i.MX25 (9049fce8) · Commits · 戴 / test

Up to now the polarity of the over current pin was hard coded to active high. Use the already defined device tree properties to configure polarity on i.MX25, too. In difference to i.MX6/7 use active high behavior if the polarity is unspecified to keep compatibility to existing device trees. Signed-off-by:

Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by:

Peter Chen <peter.chen@nxp.com>

drivers/usb/chipidea/usbmisc_imx.c

+15 −0

Original line number	Diff line number	Diff line
		@@ -136,6 +136,14 @@ static int usbmisc_imx25_init(struct imx_usbmisc_data *data)
		val &= ~(MX25_OTG_SIC_MASK \| MX25_OTG_PP_BIT);
		val \|= (MX25_EHCI_INTERFACE_DIFF_UNI & MX25_EHCI_INTERFACE_MASK) << MX25_OTG_SIC_SHIFT;
		val \|= (MX25_OTG_PM_BIT \| MX25_OTG_OCPOL_BIT);

		/*
		* If the polarity is not configured assume active high for
		* historical reasons.
		*/
		if (data->oc_pol_configured && data->oc_pol_active_low)
		val &= ~MX25_OTG_OCPOL_BIT;

		writel(val, usbmisc->base);
		break;
		case 1:
		@@ -145,6 +153,13 @@ static int usbmisc_imx25_init(struct imx_usbmisc_data *data)
		val \|= (MX25_H1_PM_BIT \| MX25_H1_OCPOL_BIT \| MX25_H1_TLL_BIT \|
		MX25_H1_USBTE_BIT \| MX25_H1_IPPUE_DOWN_BIT);

		/*
		* If the polarity is not configured assume active high for
		* historical reasons.
		*/
		if (data->oc_pol_configured && data->oc_pol_active_low)
		val &= ~MX25_H1_OCPOL_BIT;

		writel(val, usbmisc->base);

		break;

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