Commit 8ef0e614 authored May 31, 2011 by Tomi Valkeinen

OMAP: DSS2: Reset LANEx_ULPS_SIG2 bits after use



LANEx_ULPS_SIG2 bits are left on after entering ULPS. This doesn't cause
any problems currently, as DSI HW is reset when it is enabled. However,
if the reset is not done, operation fails if the bits are still set.

So reset the bits after entering ULPS to ensure operation even without
HW reset.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

parent e8945677

drivers/video/omap2/dss/dsi.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -3395,6 +3395,10 @@ static int dsi_enter_ulps(struct platform_device *dsidev)
		dsi_unregister_isr_cio(dsidev, dsi_completion_handler, &completion,
		DSI_CIO_IRQ_ULPSACTIVENOT_ALL0);

		/* Reset LANEx_ULPS_SIG2 */
		REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, (0 << 0) \| (0 << 1) \| (0 << 2),
		7, 5);

		dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_ULPS);

		dsi_if_enable(dsidev, false);