diff options
| -rw-r--r-- | drivers/video/omap2/dss/dsi.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 5abf8e7e7456..1331f92f11c2 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -3561,6 +3561,9 @@ static int dsi_enter_ulps(struct platform_device *dsidev) REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, (1 << 0) | (1 << 1) | (1 << 2), 7, 5); + /* flush posted write and wait for SCP interface to finish the write */ + dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG2); + if (wait_for_completion_timeout(&completion, msecs_to_jiffies(1000)) == 0) { DSSERR("ULPS enable timeout\n"); @@ -3575,6 +3578,9 @@ static int dsi_enter_ulps(struct platform_device *dsidev) REG_FLD_MOD(dsidev, DSI_COMPLEXIO_CFG2, (0 << 0) | (0 << 1) | (0 << 2), 7, 5); + /* flush posted write and wait for SCP interface to finish the write */ + dsi_read_reg(dsidev, DSI_COMPLEXIO_CFG2); + dsi_cio_power(dsidev, DSI_COMPLEXIO_POWER_ULPS); dsi_if_enable(dsidev, false); |