On Tue, Feb 25, 2025 at 06:55:58PM +0100, neil.armstrong@xxxxxxxxxx wrote:
> On 25/02/2025 11:41, Dmitry Baryshkov wrote:
> > On Tue, 25 Feb 2025 at 12:04, Neil Armstrong <neil.armstrong@xxxxxxxxxx> wrote:
> > >
> > > On 25/02/2025 11:02, Dmitry Baryshkov wrote:
> > > > On Tue, Feb 25, 2025 at 10:05:10AM +0100, Neil Armstrong wrote:
> > > > > In order to support the SM8650 iris33 hardware, we need to provide specific
> > > > > reset and constoller power off sequences via the vpu_ops callbacks.
> > > > >
> > > > > Add those callbacks, and use the current helpers for currently supported
> > > > > platforms.
> > > > >
> > > > > Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
> > > > > ---
> > > > > drivers/media/platform/qcom/iris/iris_vpu2.c | 2 ++
> > > > > drivers/media/platform/qcom/iris/iris_vpu3.c | 2 ++
> > > > > drivers/media/platform/qcom/iris/iris_vpu_common.c | 14 ++++++++++----
> > > > > drivers/media/platform/qcom/iris/iris_vpu_common.h | 4 ++++
> > > > > 4 files changed, 18 insertions(+), 4 deletions(-)
> > > > >
> > > > > diff --git a/drivers/media/platform/qcom/iris/iris_vpu2.c b/drivers/media/platform/qcom/iris/iris_vpu2.c
> > > > > index 8f502aed43ce2fa6a272a2ce14ff1ca54d3e63a2..093e2068ec35e902f6c7bb3a487a679f9eada39a 100644
> > > > > --- a/drivers/media/platform/qcom/iris/iris_vpu2.c
> > > > > +++ b/drivers/media/platform/qcom/iris/iris_vpu2.c
> > > > > @@ -33,6 +33,8 @@ static u64 iris_vpu2_calc_freq(struct iris_inst *inst, size_t data_size)
> > > > > }
> > > > >
> > > > > const struct vpu_ops iris_vpu2_ops = {
> > > > > + .reset_controller = iris_vpu_reset_controller,
> > > > > .power_off_hw = iris_vpu_power_off_hw,
> > > > > + .power_off_controller = iris_vpu_power_off_controller,
> > > > > .calc_freq = iris_vpu2_calc_freq,
> > > > > };
> > > > > diff --git a/drivers/media/platform/qcom/iris/iris_vpu3.c b/drivers/media/platform/qcom/iris/iris_vpu3.c
> > > > > index b484638e6105a69319232f667ee7ae95e3853698..95f362633c95b101ecfda6480c4c0b73416bd00c 100644
> > > > > --- a/drivers/media/platform/qcom/iris/iris_vpu3.c
> > > > > +++ b/drivers/media/platform/qcom/iris/iris_vpu3.c
> > > > > @@ -117,6 +117,8 @@ static u64 iris_vpu3_calculate_frequency(struct iris_inst *inst, size_t data_siz
> > > > > }
> > > > >
> > > > > const struct vpu_ops iris_vpu3_ops = {
> > > > > + .reset_controller = iris_vpu_reset_controller,
> > > > > .power_off_hw = iris_vpu3_power_off_hardware,
> > > > > + .power_off_controller = iris_vpu_power_off_controller,
> > > > > .calc_freq = iris_vpu3_calculate_frequency,
> > > > > };
> > > > > diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.c b/drivers/media/platform/qcom/iris/iris_vpu_common.c
> > > > > index fe9896d66848cdcd8c67bd45bbf3b6ce4a01ab10..ec8b10d836d0993bcd722a2bafbb577b85f41fc9 100644
> > > > > --- a/drivers/media/platform/qcom/iris/iris_vpu_common.c
> > > > > +++ b/drivers/media/platform/qcom/iris/iris_vpu_common.c
> > > > > @@ -211,7 +211,7 @@ int iris_vpu_prepare_pc(struct iris_core *core)
> > > > > return -EAGAIN;
> > > > > }
> > > > >
> > > > > -static int iris_vpu_power_off_controller(struct iris_core *core)
> > > > > +int iris_vpu_power_off_controller(struct iris_core *core)
> > > > > {
> > > > > u32 val = 0;
> > > > > int ret;
> > > > > @@ -264,23 +264,29 @@ void iris_vpu_power_off(struct iris_core *core)
> > > > > {
> > > > > dev_pm_opp_set_rate(core->dev, 0);
> > > > > core->iris_platform_data->vpu_ops->power_off_hw(core);
> > > > > - iris_vpu_power_off_controller(core);
> > > > > + core->iris_platform_data->vpu_ops->power_off_controller(core);
> > > > > iris_unset_icc_bw(core);
> > > > >
> > > > > if (!iris_vpu_watchdog(core, core->intr_status))
> > > > > disable_irq_nosync(core->irq);
> > > > > }
> > > > >
> > > > > -static int iris_vpu_power_on_controller(struct iris_core *core)
> > > > > +int iris_vpu_reset_controller(struct iris_core *core)
> > > >
> > > > If these functions are platform-specific, please rename them
> > > > accordingly, like iris_vpu2_3_foo() or just iris_vpu2_foo().
> > >
> > > They are not, this is the whole point.
> >
> > I think they are, you are adding them to the platform-specific ops. In
> > the end, they are not applicable to 3.3.
>
> Vpu 3.3 is added on the next patch, with specific callbacks
> for 3.3, this very patch has no functional change, it still uses
> the same "common" reset and controller power off for vpu2 and vpu3.
>
> This very patch is a preparation for vpu33, using common helpers
> in vpu_ops is already done in the vpu2 support, I simply extend
> the same logic here.
I'd really expect that iris_vpu_foo() functions apply to every platform.
These functions are now being used for VPU2 and VPU3 only. Thus I assume
that they are platform specific and should have platform-specific
prefix.
>
> Neil
>
> >
> > >
> > > Neil
> > >
> > > >
> > > > > {
> > > > > u32 rst_tbl_size = core->iris_platform_data->clk_rst_tbl_size;
> > > > > +
> > > > > + return reset_control_bulk_reset(rst_tbl_size, core->resets);
> > > > > +}
> > > > > +
> > > > > +static int iris_vpu_power_on_controller(struct iris_core *core)
> > > > > +{
> > > > > int ret;
> > > > >
> > > > > ret = iris_enable_power_domains(core, core->pmdomain_tbl->pd_devs[IRIS_CTRL_POWER_DOMAIN]);
> > > > > if (ret)
> > > > > return ret;
> > > > >
> > > > > - ret = reset_control_bulk_reset(rst_tbl_size, core->resets);
> > > > > + ret = core->iris_platform_data->vpu_ops->reset_controller(core);
> > > > > if (ret)
> > > > > goto err_disable_power;
> > > > >
> > > > > diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.h b/drivers/media/platform/qcom/iris/iris_vpu_common.h
> > > > > index 63fa1fa5a4989e48aebdb6c7619c140000c0b44c..c948d8b5aee87ccf1fd53c5518a27294232d8fb8 100644
> > > > > --- a/drivers/media/platform/qcom/iris/iris_vpu_common.h
> > > > > +++ b/drivers/media/platform/qcom/iris/iris_vpu_common.h
> > > > > @@ -12,7 +12,9 @@ extern const struct vpu_ops iris_vpu2_ops;
> > > > > extern const struct vpu_ops iris_vpu3_ops;
> > > > >
> > > > > struct vpu_ops {
> > > > > + int (*reset_controller)(struct iris_core *core);
> > > > > void (*power_off_hw)(struct iris_core *core);
> > > > > + int (*power_off_controller)(struct iris_core *core);
> > > > > u64 (*calc_freq)(struct iris_inst *inst, size_t data_size);
> > > > > };
> > > > >
> > > > > @@ -21,7 +23,9 @@ void iris_vpu_raise_interrupt(struct iris_core *core);
> > > > > void iris_vpu_clear_interrupt(struct iris_core *core);
> > > > > int iris_vpu_watchdog(struct iris_core *core, u32 intr_status);
> > > > > int iris_vpu_prepare_pc(struct iris_core *core);
> > > > > +int iris_vpu_reset_controller(struct iris_core *core);
> > > > > int iris_vpu_power_on(struct iris_core *core);
> > > > > +int iris_vpu_power_off_controller(struct iris_core *core);
> > > > > void iris_vpu_power_off_hw(struct iris_core *core);
> > > > > void iris_vpu_power_off(struct iris_core *core);
> > > > >
> > > > >
> > > > > --
> > > > > 2.34.1
> > > > >
> > > >
> > >
> >
> >
>
--
With best wishes
Dmitry
