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video: tegra: host: dla: remove mailbox reg usage from ping

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- passing ping values through mailbox register removed,
  so remove mailbox checks in after command execution.

Jira DLA-82

Change-Id: Ieb19f50107c6aa4ef9a5a26d86acfe9abc03c447
Signed-off-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-on: http://git-master/r/1195056
This commit is contained in:
Shridhar Rasal
2016-08-01 09:44:11 +05:30
committed by Laxman Dewangan
parent ae33d25309
commit f2dba6e7d7
1 changed files with 1 additions and 11 deletions
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12
drivers/video/tegra/host/nvdla/nvdla.c
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@@ -265,8 +265,6 @@ static int nvdla_ctrl_ping(struct platform_device *pdev,
dma_addr_t ping_pa;
u32 *ping_va;
uint32_t mailbox0;
uint32_t mailbox1;
u32 timeout = FLCN_IDLE_TIMEOUT_DEFAULT * 5;
int err = 0;
@@ -296,18 +294,10 @@ static int nvdla_ctrl_ping(struct platform_device *pdev,
goto fail_to_idle;
}
/* mailbox0 should have (in_challenge * 2) */
mailbox0 = host1x_readl(pdev, flcn_mailbox0_r());
/* mailbox1 should have (in_challenge * 3) */
mailbox1 = host1x_readl(pdev, flcn_mailbox1_r());
/* out value should have (in_challenge * 4) */
args->out_response = *ping_va;
if ((mailbox0 != args->in_challenge*2) ||
(mailbox1 != args->in_challenge*3) ||
(args->out_response != args->in_challenge*4)) {
if (args->out_response != args->in_challenge*4) {
dev_err(&pdev->dev, "ping cmd failed. Falcon is not active");
err = -EINVAL;
}