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msm: camera: utils: Add option to not set src clk rate

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Clients like cpas scale some clocks like slow_ahb, fast_ahb
through vote level based on other hw's src clk freq while
the actual src clock (camnoc) is calculated and set directly
through set_src_clk API. This will overwrite freq of camnoc_axi
with the same level as AHB when ahb clocks are set. Do not
set src clk rate while setting rate for other clocks using level.

CRs-Fixed: 2793673
Change-Id: I5538a5cebf4e47c407a2bf9778136500b1162b4a
Signed-off-by: Pavan Kumar Chilamkurthi <pchilamk@codeaurora.org>
This commit is contained in:
Pavan Kumar Chilamkurthi
2020-10-17 13:46:06 -07:00
parent 91a37fd070
commit d1177505ae
4 changed files with 15 additions and 4 deletions
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12
drivers/cam_utils/cam_soc_util.c
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@@ -907,7 +907,7 @@ end:
}
int cam_soc_util_set_clk_rate_level(struct cam_hw_soc_info *soc_info,
enum cam_vote_level clk_level)
enum cam_vote_level clk_level, bool do_not_set_src_clk)
{
int i, rc = 0;
enum cam_vote_level apply_level;
@@ -928,6 +928,16 @@ int cam_soc_util_set_clk_rate_level(struct cam_hw_soc_info *soc_info,
cam_cx_ipeak_update_vote_cx_ipeak(soc_info, apply_level);
for (i = 0; i < soc_info->num_clk; i++) {
if (do_not_set_src_clk && (i == soc_info->src_clk_idx)) {
CAM_DBG(CAM_UTIL, "Skipping set rate for src clk %s",
soc_info->clk_name[i]);
continue;
}
CAM_DBG(CAM_UTIL, "Set rate for clk %s rate %d",
soc_info->clk_name[i],
soc_info->clk_rate[apply_level][i]);
rc = cam_soc_util_set_clk_rate(soc_info->clk[i],
soc_info->clk_name[i],
soc_info->clk_rate[apply_level][i]);