From: Tony Lindgren tony@atomide.com
[ Upstream commit 94f6345712b37e4bb23cb265ce4c65b9d177e75a ]
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 Signed-off-by: Sasha Levin sashal@kernel.org --- 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 index d9846265a5cd9..a0cecb12b6f96 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -479,7 +479,7 @@ 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); @@ -491,7 +491,7 @@ 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); @@ -1251,6 +1251,12 @@ 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 index 8cfe570fdece6..2cbde6542849d 100644 --- 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)