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disp: msm: dsi: add additional validation checks for async cmd wait

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Disable DSI command transfer async wait feature for DSI read commands
and the commands sent in non-embedded mode.

CRs-Fixed: 2579259
Change-Id: Ib3b08fbb091711aa4be87400b79d01f0dcc05e71
Signed-off-by: Aravind Venkateswaran <aravindh@codeaurora.org>
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>
This commit is contained in:
Aravind Venkateswaran
2019-12-16 22:15:35 -08:00
committed by Satya Rama Aditya Pinapala
parent 81ad4ef407
commit bce44eed47
1 changed files with 10 additions and 4 deletions
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14
msm/dsi/dsi_ctrl.c
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@@ -1254,13 +1254,19 @@ static u32 dsi_ctrl_validate_msg_flags(const struct mipi_dsi_msg *msg,
u32 flags)
{
/*
* ASYNC command wait mode is not supported for FIFO commands.
* Waiting after a command is transferred cannot be guaranteed
* if DSI_CTRL_CMD_ASYNC_WAIT flag is set.
* ASYNC command wait mode is not supported for
* - commands sent using DSI FIFO memory
* - DSI read commands
* - DCS commands sent in non-embedded mode
* - whenever an explicit wait time is specificed for the command
* since the wait time cannot be guaranteed in async mode
*/
if ((flags & DSI_CTRL_CMD_FIFO_STORE) ||
msg->wait_ms)
flags & DSI_CTRL_CMD_READ ||
flags & DSI_CTRL_CMD_NON_EMBEDDED_MODE ||
msg->wait_ms)
flags &= ~DSI_CTRL_CMD_ASYNC_WAIT;
return flags;
}