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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-10-12 10:10:21 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-12-02 08:54:13 +0200 |
| commit | a702c85906390282e2aabb6cb30e448e23ee1599 (patch) | |
| tree | 6d097805596e17e2b3fcfdb6c7b543e50ccbc22e /drivers | |
| parent | a47161a55e40203e5dae6d04df3b159551377365 (diff) | |
| download | linux-a702c85906390282e2aabb6cb30e448e23ee1599.tar.bz2 | |
OMAPDSS: DSI: flush posted write when entering ULPS
Flush posted write between writing the ULPS enable bits and waiting for
the interrupt.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers')
| -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); |