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platform: dce: add delay between ipc_notify admin-seq

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Add a few microseconds delay between sending ipc-notify calls for IPC
channel reset. IPC notify ACKs are asynchronous and sending notify when
the previous ACK was still in progress will cause spurious interrupt/ACK
signal and printout FSP state warnings.

Bug 4069133

Change-Id: I20dff299149a66629dc23ab2a7cb7765eac1b4dc
Signed-off-by: Mahesh Kumar <mahkumar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2900570
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Vinod Atyam <vatyam@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Tested-by: Vinod Atyam <vatyam@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2902404
This commit is contained in:
Mahesh Kumar
2023-05-09 04:40:16 +00:00
committed by mobile promotions
parent 30ebc1a639
commit d4185fbe2e
3 changed files with 17 additions and 0 deletions
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2
drivers/platform/tegra/dce/include/dce-util-common.h
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@@ -41,6 +41,8 @@ void dce_kfree(struct tegra_dce *d, void *addr);
unsigned long dce_get_nxt_pow_of_2(unsigned long *addr, u8 nbits);
void dce_usleep_range(unsigned long min, unsigned long max);
static inline void dce_bitmap_set(unsigned long *map,
unsigned int start, unsigned int len)
{