Messages in this thread Patch in this message |  | | From | Tony Lindgren <> | Subject | [PATCH 2/2] mfd: omap-usb-tll: Configure ULPIAUTOIDLE | Date | Sat, 15 Apr 2017 10:05:09 -0700 |
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The idle mode needs to be only disabled for UTMIAUTOIDLE while ULPIAUTOIDLE can be enabled.
This matches the TLL_CHANNEL_CONF_i register configuration for ehci-tll in the Motorola Linux kernel tree for Wrigley 3G LTE modem on droid 4 and the modem still stays responsive.
Cc: Felipe Balbi <felipe.balbi@linux.intel.com> Cc: Keshava Munegowda <keshava_mgowda@ti.com> Cc: Marcel Partap <mpartap@gmx.net> Cc: Michael Scott <michael.scott@linaro.org> Cc: Roger Quadros <rogerq@ti.com> Cc: Sebastian Reichel <sre@kernel.org> Signed-off-by: Tony Lindgren <tony@atomide.com> --- drivers/mfd/omap-usb-tll.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c --- a/drivers/mfd/omap-usb-tll.c +++ b/drivers/mfd/omap-usb-tll.c @@ -373,12 +373,13 @@ int omap_tll_init(struct usbhs_omap_platform_data *pdata) } else if (pdata->port_mode[i] == OMAP_EHCI_PORT_MODE_TLL) { /* - * Disable AutoIdle, BitStuffing - * and use SDR Mode + * Disable UTMI AutoIdle, BitStuffing + * and use SDR Mode. Enable ULPI AutoIdle. */ reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE | OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE); reg |= OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF; + reg |= OMAP_TLL_CHANNEL_CONF_ULPI_ULPIAUTOIDLE; } else if (pdata->port_mode[i] == OMAP_EHCI_PORT_MODE_HSIC) { /* -- 2.12.2
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