| Message ID | 20230911-topic-mars-v3-5-79f23b81c261@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | [v3,01/19] media: venus: pm_helpers: Only set rate of the core clock in core_clks_enable | expand |
On 4/5/24 09:49, Dikshita Agarwal wrote: > > > On 3/27/2024 11:38 PM, Konrad Dybcio wrote: >> A situation like: >> >> if (!foo) >> goto bar; >> >> for (i = 0; i < foo; i++) >> ...1... >> >> bar: >> ...2... >> >> is totally identical to: >> >> for (i = 0; i < 0; i++) // === if (0) >> ...1... >> >> ...2... >> >> Get rid of such boilerplate. >> >> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> >> --- >> drivers/media/platform/qcom/venus/pm_helpers.c | 10 ---------- >> 1 file changed, 10 deletions(-) >> >> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c >> index ef4b0f0da36f..730c4b593cec 100644 >> --- a/drivers/media/platform/qcom/venus/pm_helpers.c >> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c >> @@ -878,14 +878,10 @@ static int vcodec_domains_get(struct venus_core *core) >> .pd_flags = PD_FLAG_NO_DEV_LINK, >> }; >> >> - if (!res->vcodec_pmdomains_num) >> - goto skip_pmdomains; >> - > this condition should still be there to skip calling > dev_pm_domain_attach_list if vcodec_pmdomains_num is 0. That should be totally fine, within that function there's this bit if (num_pds <= 0) return 0; which bails out gracefully Konrad
On 4/9/2024 11:54 PM, Konrad Dybcio wrote: > > > On 4/5/24 09:49, Dikshita Agarwal wrote: >> >> >> On 3/27/2024 11:38 PM, Konrad Dybcio wrote: >>> A situation like: >>> >>> if (!foo) >>> goto bar; >>> >>> for (i = 0; i < foo; i++) >>> ...1... >>> >>> bar: >>> ...2... >>> >>> is totally identical to: >>> >>> for (i = 0; i < 0; i++) // === if (0) >>> ...1... >>> >>> ...2... >>> >>> Get rid of such boilerplate. >>> >>> Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> >>> --- >>> drivers/media/platform/qcom/venus/pm_helpers.c | 10 ---------- >>> 1 file changed, 10 deletions(-) >>> >>> diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c >>> b/drivers/media/platform/qcom/venus/pm_helpers.c >>> index ef4b0f0da36f..730c4b593cec 100644 >>> --- a/drivers/media/platform/qcom/venus/pm_helpers.c >>> +++ b/drivers/media/platform/qcom/venus/pm_helpers.c >>> @@ -878,14 +878,10 @@ static int vcodec_domains_get(struct venus_core >>> *core) >>> .pd_flags = PD_FLAG_NO_DEV_LINK, >>> }; >>> - if (!res->vcodec_pmdomains_num) >>> - goto skip_pmdomains; >>> - >> this condition should still be there to skip calling >> dev_pm_domain_attach_list if vcodec_pmdomains_num is 0. > > That should be totally fine, within that function there's this bit > > if (num_pds <= 0) > return 0; > > which bails out gracefully > AFAIU, this condition won't be true eg: for 8916 and 8996. because in the else condition[1], num_pds will be non-zero, as there is one entry for power-domains in dtsi file for 8916, 8996 as well. [1]https://elixir.bootlin.com/linux/v6.9-rc5/source/drivers/base/power/common.c#L213 Am I missing something here? > Konrad
diff --git a/drivers/media/platform/qcom/venus/pm_helpers.c b/drivers/media/platform/qcom/venus/pm_helpers.c index ef4b0f0da36f..730c4b593cec 100644 --- a/drivers/media/platform/qcom/venus/pm_helpers.c +++ b/drivers/media/platform/qcom/venus/pm_helpers.c @@ -878,14 +878,10 @@ static int vcodec_domains_get(struct venus_core *core) .pd_flags = PD_FLAG_NO_DEV_LINK, }; - if (!res->vcodec_pmdomains_num) - goto skip_pmdomains; - ret = dev_pm_domain_attach_list(dev, &vcodec_data, &core->pmdomains); if (ret < 0) return ret; -skip_pmdomains: if (!core->res->opp_pmdomain) return 0; @@ -928,9 +924,6 @@ static int core_resets_reset(struct venus_core *core) unsigned int i; int ret; - if (!res->resets_num) - return 0; - for (i = 0; i < res->resets_num; i++) { ret = reset_control_assert(core->resets[i]); if (ret) @@ -953,9 +946,6 @@ static int core_resets_get(struct venus_core *core) unsigned int i; int ret; - if (!res->resets_num) - return 0; - for (i = 0; i < res->resets_num; i++) { core->resets[i] = devm_reset_control_get_exclusive(dev, res->resets[i]);
A situation like: if (!foo) goto bar; for (i = 0; i < foo; i++) ...1... bar: ...2... is totally identical to: for (i = 0; i < 0; i++) // === if (0) ...1... ...2... Get rid of such boilerplate. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> --- drivers/media/platform/qcom/venus/pm_helpers.c | 10 ---------- 1 file changed, 10 deletions(-)