| Message ID | 1307627810-3768-4-git-send-email-tomi.valkeinen@ti.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 69c2d4f..4496d09 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -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);
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> --- drivers/video/omap2/dss/dsi.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)