From: Tony Lindgren tony@atomide.com
[ Upstream commit 020003f763e24e4ed0bb3d8909f3940891536d5d ]
We must set the autogating bit on enable for AESS (Audio Engine SubSystem) when probed with ti-sysc interconnect target module driver. Otherwise it won't idle properly.
Cc: Peter Ujfalusi peter.ujfalusi@ti.com Tested-by: Peter Ujfalusi peter.ujfalusi@ti.com Signed-off-by: Tony Lindgren tony@atomide.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/bus/ti-sysc.c | 14 +++++++++++++- include/linux/platform_data/ti-sysc.h | 1 + 2 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 0e5cfd752410d..ea16a2d4fb532 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -1248,6 +1248,8 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { SYSC_QUIRK_SWSUP_SIDLE),
/* 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("hdq1w", 0, 0, 0x14, 0x18, 0x00000006, 0xffffffff, SYSC_MODULE_QUIRK_HDQ1W), SYSC_QUIRK("hdq1w", 0, 0, 0x14, 0x18, 0x0000000a, 0xffffffff, @@ -1276,7 +1278,6 @@ static const struct sysc_revision_quirk sysc_revision_quirks[] = { #ifdef DEBUG SYSC_QUIRK("adc", 0, 0, 0x10, -1, 0x47300001, 0xffffffff, 0), SYSC_QUIRK("atl", 0, 0, -1, -1, 0x0a070100, 0xffffffff, 0), - SYSC_QUIRK("aess", 0, 0, 0x10, -1, 0x40000000, 0xffffffff, 0), SYSC_QUIRK("cm", 0, 0, -1, -1, 0x40000301, 0xffffffff, 0), SYSC_QUIRK("control", 0, 0, 0x10, -1, 0x40000900, 0xffffffff, 0), SYSC_QUIRK("cpgmac", 0, 0x1200, 0x1208, 0x1204, 0x4edb1902, @@ -1408,6 +1409,14 @@ static void sysc_clk_enable_quirk_hdq1w(struct sysc *ddata) sysc_write(ddata, offset, val); }
+/* AESS (Audio Engine SubSystem) needs autogating set after enable */ +static void sysc_module_enable_quirk_aess(struct sysc *ddata) +{ + int offset = 0x7c; /* AESS_AUTO_GATING_ENABLE */ + + sysc_write(ddata, offset, 1); +} + /* I2C needs extra enable bit toggling for reset */ static void sysc_clk_quirk_i2c(struct sysc *ddata, bool enable) { @@ -1490,6 +1499,9 @@ static void sysc_init_module_quirks(struct sysc *ddata) return; }
+ if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_AESS) + ddata->module_enable_quirk = sysc_module_enable_quirk_aess; + if (ddata->cfg.quirks & SYSC_MODULE_QUIRK_SGX) ddata->module_enable_quirk = sysc_module_enable_quirk_sgx;
diff --git a/include/linux/platform_data/ti-sysc.h b/include/linux/platform_data/ti-sysc.h index b5b7a3423ca81..0b93804751444 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_MODULE_QUIRK_AESS BIT(19) #define SYSC_MODULE_QUIRK_SGX BIT(18) #define SYSC_MODULE_QUIRK_HDQ1W BIT(17) #define SYSC_MODULE_QUIRK_I2C BIT(16)