| Message ID | 20220730144713.3.I5e64ff4b77bb9079eb2edeea8a02585c9e76778f@changeid (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | clk/qcom: Support gdsc collapse polling using 'reset' inteface | expand |
On 30/07/2022 12:17, Akhil P Oommen wrote: > Allow a consumer driver to poll for cx gdsc collapse through Reset > framework. > > Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com> > --- > > drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/clk/qcom/gpucc-sc7280.c b/drivers/clk/qcom/gpucc-sc7280.c > index 9a832f2..f5df51d 100644 > --- a/drivers/clk/qcom/gpucc-sc7280.c > +++ b/drivers/clk/qcom/gpucc-sc7280.c > @@ -433,12 +433,18 @@ static const struct regmap_config gpu_cc_sc7280_regmap_config = { > .fast_io = true, > }; > > +static const struct qcom_reset_map gpucc_sc7280_resets[] = { > + [GPU_CX_COLLAPSE] = { .op = gdsc_wait_for_collapse, .priv = &cx_gdsc }, This will break bisectability. Please swap this one and the patch 4. > +}; > + > static const struct qcom_cc_desc gpu_cc_sc7280_desc = { > .config = &gpu_cc_sc7280_regmap_config, > .clks = gpu_cc_sc7280_clocks, > .num_clks = ARRAY_SIZE(gpu_cc_sc7280_clocks), > .gdscs = gpu_cc_sc7180_gdscs, > .num_gdscs = ARRAY_SIZE(gpu_cc_sc7180_gdscs), > + .resets = gpucc_sc7280_resets, > + .num_resets = ARRAY_SIZE(gpucc_sc7280_resets), > }; > > static const struct of_device_id gpu_cc_sc7280_match_table[] = {
On 30/07/2022 12:17, Akhil P Oommen wrote: > Allow a consumer driver to poll for cx gdsc collapse through Reset > framework. > > Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com> > --- > > drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/clk/qcom/gpucc-sc7280.c b/drivers/clk/qcom/gpucc-sc7280.c > index 9a832f2..f5df51d 100644 > --- a/drivers/clk/qcom/gpucc-sc7280.c > +++ b/drivers/clk/qcom/gpucc-sc7280.c > @@ -433,12 +433,18 @@ static const struct regmap_config gpu_cc_sc7280_regmap_config = { > .fast_io = true, > }; > > +static const struct qcom_reset_map gpucc_sc7280_resets[] = { > + [GPU_CX_COLLAPSE] = { .op = gdsc_wait_for_collapse, .priv = &cx_gdsc }, > +}; > + > static const struct qcom_cc_desc gpu_cc_sc7280_desc = { > .config = &gpu_cc_sc7280_regmap_config, > .clks = gpu_cc_sc7280_clocks, > .num_clks = ARRAY_SIZE(gpu_cc_sc7280_clocks), > .gdscs = gpu_cc_sc7180_gdscs, > .num_gdscs = ARRAY_SIZE(gpu_cc_sc7180_gdscs), > + .resets = gpucc_sc7280_resets, > + .num_resets = ARRAY_SIZE(gpucc_sc7280_resets), An implementation question. Do we have to poll for the GDSC on platforms like sm8150/sm8250 which have the plain BCR resets? > }; > > static const struct of_device_id gpu_cc_sc7280_match_table[] = {
On 8/2/2022 12:45 PM, Dmitry Baryshkov wrote: > On 30/07/2022 12:17, Akhil P Oommen wrote: >> Allow a consumer driver to poll for cx gdsc collapse through Reset >> framework. >> >> Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com> >> --- >> >> drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/drivers/clk/qcom/gpucc-sc7280.c >> b/drivers/clk/qcom/gpucc-sc7280.c >> index 9a832f2..f5df51d 100644 >> --- a/drivers/clk/qcom/gpucc-sc7280.c >> +++ b/drivers/clk/qcom/gpucc-sc7280.c >> @@ -433,12 +433,18 @@ static const struct regmap_config >> gpu_cc_sc7280_regmap_config = { >> .fast_io = true, >> }; >> +static const struct qcom_reset_map gpucc_sc7280_resets[] = { >> + [GPU_CX_COLLAPSE] = { .op = gdsc_wait_for_collapse, .priv = >> &cx_gdsc }, >> +}; >> + >> static const struct qcom_cc_desc gpu_cc_sc7280_desc = { >> .config = &gpu_cc_sc7280_regmap_config, >> .clks = gpu_cc_sc7280_clocks, >> .num_clks = ARRAY_SIZE(gpu_cc_sc7280_clocks), >> .gdscs = gpu_cc_sc7180_gdscs, >> .num_gdscs = ARRAY_SIZE(gpu_cc_sc7180_gdscs), >> + .resets = gpucc_sc7280_resets, >> + .num_resets = ARRAY_SIZE(gpucc_sc7280_resets), > > An implementation question. Do we have to poll for the GDSC on > platforms like sm8150/sm8250 which have the plain BCR resets? Yes. Thanks for all the feedback, Dmitry. I will post another version of this series. -Akhil. > >> }; >> static const struct of_device_id gpu_cc_sc7280_match_table[] = { > >
diff --git a/drivers/clk/qcom/gpucc-sc7280.c b/drivers/clk/qcom/gpucc-sc7280.c index 9a832f2..f5df51d 100644 --- a/drivers/clk/qcom/gpucc-sc7280.c +++ b/drivers/clk/qcom/gpucc-sc7280.c @@ -433,12 +433,18 @@ static const struct regmap_config gpu_cc_sc7280_regmap_config = { .fast_io = true, }; +static const struct qcom_reset_map gpucc_sc7280_resets[] = { + [GPU_CX_COLLAPSE] = { .op = gdsc_wait_for_collapse, .priv = &cx_gdsc }, +}; + static const struct qcom_cc_desc gpu_cc_sc7280_desc = { .config = &gpu_cc_sc7280_regmap_config, .clks = gpu_cc_sc7280_clocks, .num_clks = ARRAY_SIZE(gpu_cc_sc7280_clocks), .gdscs = gpu_cc_sc7180_gdscs, .num_gdscs = ARRAY_SIZE(gpu_cc_sc7180_gdscs), + .resets = gpucc_sc7280_resets, + .num_resets = ARRAY_SIZE(gpucc_sc7280_resets), }; static const struct of_device_id gpu_cc_sc7280_match_table[] = {
Allow a consumer driver to poll for cx gdsc collapse through Reset framework. Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com> --- drivers/clk/qcom/gpucc-sc7280.c | 6 ++++++ 1 file changed, 6 insertions(+)