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msm: camera: cpas: Set AHB clock rate only if a client is streamed on

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Currently the ahb clock rate is set as part of cpas_start for a
given client. In order to set this rate, any camera gdsc needs to
be enabled. This change adds a check to allow setting the clk rate
only if the gdsc regulator has been enabled to avoid NoC timeouts.

CRs-Fixed: 2671048
Change-Id: I6551c8c648ae298dca97f0e35ba7c9ca83b5a2cd
Signed-off-by: Karthik Anantha Ram <kartanan@codeaurora.org>
This commit is contained in:
Karthik Anantha Ram 2020-04-22 16:16:36 -07:00 • committed by Gerrit - the friendly Code Review server
commit 85ac759b1e
1 changed files with 8 additions and 5 deletions
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13
drivers/cam_cpas/cam_cpas_hw.c
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@ -1030,12 +1030,15 @@ static int cam_cpas_util_apply_client_ahb_vote(struct cam_hw_info *cpas_hw,
}
}
rc = cam_soc_util_set_clk_rate_level(&cpas_hw->soc_info, highest_level);
if (rc) {
CAM_ERR(CAM_CPAS,
"Failed in scaling clock rate level %d for AHB",
if (cpas_core->streamon_clients) {
rc = cam_soc_util_set_clk_rate_level(&cpas_hw->soc_info,
highest_level);
goto unlock_bus_client;
if (rc) {
CAM_ERR(CAM_CPAS,
"Failed in scaling clock rate level %d for AHB",
highest_level);
goto unlock_bus_client;
}
}
if (applied_level)