| Message ID | 20191210161342.15142-1-tony@atomide.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | bus: ti-sysc: Implement quirk handling for CLKDM_NOAUTO | expand |
On 10/12/2019 18:13, Tony Lindgren wrote: > For dra7 dcan and dwc3 instances we need to block clockdomain autoidle. > Let's do this with CLKDM_NOAUTO quirk flag and enable it for dcan and > dwc3. > > Cc: Keerthy <j-keerthy@ti.com> > Cc: Roger Quadros <rogerq@ti.com> > Cc: Tero Kristo <t-kristo@ti.com> > Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Roger Quadros <rogerq@ti.com> > --- > drivers/bus/ti-sysc.c | 10 ++++++++-- > include/linux/platform_data/ti-sysc.h | 1 + > 2 files changed, 9 insertions(+), 2 deletions(-) > > diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c > --- a/drivers/bus/ti-sysc.c > +++ b/drivers/bus/ti-sysc.c > @@ -473,7 +473,7 @@ static void sysc_clkdm_deny_idle(struct sysc *ddata) > { > struct ti_sysc_platform_data *pdata; > > - if (ddata->legacy_mode) > + if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) > return; > > pdata = dev_get_platdata(ddata->dev); > @@ -485,7 +485,7 @@ static void sysc_clkdm_allow_idle(struct sysc *ddata) > { > struct ti_sysc_platform_data *pdata; > > - if (ddata->legacy_mode) > + if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) > return; > > pdata = dev_get_platdata(ddata->dev); > @@ -1245,6 +1245,12 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { > /* Quirks that need to be set based on detected module */ > SYSC_QUIRK("aess", 0, 0, 0x10, -1, 0x40000000, 0xffffffff, > SYSC_MODULE_QUIRK_AESS), > + SYSC_QUIRK("dcan", 0x48480000, 0x20, -1, -1, 0xa3170504, 0xffffffff, > + SYSC_QUIRK_CLKDM_NOAUTO), > + SYSC_QUIRK("dwc3", 0x48880000, 0, 0x10, -1, 0x500a0200, 0xffffffff, > + SYSC_QUIRK_CLKDM_NOAUTO), > + SYSC_QUIRK("dwc3", 0x488c0000, 0, 0x10, -1, 0x500a0200, 0xffffffff, > + SYSC_QUIRK_CLKDM_NOAUTO), > SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff, > SYSC_MODULE_QUIRK_HDQ1W), > SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x0000000a, 0xffffffff, > diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h > --- a/include/linux/platform_data/ti-sysc.h > +++ b/include/linux/platform_data/ti-sysc.h > @@ -49,6 +49,7 @@ struct sysc_regbits { > s8 emufree_shift; > }; > > +#define SYSC_QUIRK_CLKDM_NOAUTO BIT(21) > #define SYSC_QUIRK_FORCE_MSTANDBY BIT(20) > #define SYSC_MODULE_QUIRK_AESS BIT(19) > #define SYSC_MODULE_QUIRK_SGX BIT(18) >
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -473,7 +473,7 @@ static void sysc_clkdm_deny_idle(struct sysc *ddata) { struct ti_sysc_platform_data *pdata; - if (ddata->legacy_mode) + if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) return; pdata = dev_get_platdata(ddata->dev); @@ -485,7 +485,7 @@ static void sysc_clkdm_allow_idle(struct sysc *ddata) { struct ti_sysc_platform_data *pdata; - if (ddata->legacy_mode) + if (ddata->legacy_mode || (ddata->cfg.quirks & SYSC_QUIRK_CLKDM_NOAUTO)) return; pdata = dev_get_platdata(ddata->dev); @@ -1245,6 +1245,12 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { /* Quirks that need to be set based on detected module */ SYSC_QUIRK("aess", 0, 0, 0x10, -1, 0x40000000, 0xffffffff, SYSC_MODULE_QUIRK_AESS), + SYSC_QUIRK("dcan", 0x48480000, 0x20, -1, -1, 0xa3170504, 0xffffffff, + SYSC_QUIRK_CLKDM_NOAUTO), + SYSC_QUIRK("dwc3", 0x48880000, 0, 0x10, -1, 0x500a0200, 0xffffffff, + SYSC_QUIRK_CLKDM_NOAUTO), + SYSC_QUIRK("dwc3", 0x488c0000, 0, 0x10, -1, 0x500a0200, 0xffffffff, + SYSC_QUIRK_CLKDM_NOAUTO), SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff, SYSC_MODULE_QUIRK_HDQ1W), SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x0000000a, 0xffffffff, diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h --- a/include/linux/platform_data/ti-sysc.h +++ b/include/linux/platform_data/ti-sysc.h @@ -49,6 +49,7 @@ struct sysc_regbits { s8 emufree_shift; }; +#define SYSC_QUIRK_CLKDM_NOAUTO BIT(21) #define SYSC_QUIRK_FORCE_MSTANDBY BIT(20) #define SYSC_MODULE_QUIRK_AESS BIT(19) #define SYSC_MODULE_QUIRK_SGX BIT(18)
For dra7 dcan and dwc3 instances we need to block clockdomain autoidle. Let's do this with CLKDM_NOAUTO quirk flag and enable it for dcan and dwc3. Cc: Keerthy <j-keerthy@ti.com> Cc: Roger Quadros <rogerq@ti.com> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> --- drivers/bus/ti-sysc.c | 10 ++++++++-- include/linux/platform_data/ti-sysc.h | 1 + 2 files changed, 9 insertions(+), 2 deletions(-)