bus: ti-sysc: Handle mstandby quirk and use it for musb

Commit Message

Tony Lindgren Oct. 21, 2019, 8:36 p.m. UTC

We need swsup quirks for sidle and mstandby for musb to work
properly.

Signed-off-by: Tony Lindgren <[e-mail]>
---
 drivers/bus/ti-sysc.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

Patch

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
@@ -917,6 +917,9 @@  static int sysc_enable_module(struct device *dev)
 		return -EINVAL;
 	}
 
+	if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_MSTANDBY)
+		best_mode = SYSC_IDLE_NO;
+
 	reg &= ~(SYSC_IDLE_MASK << regbits->midle_shift);
 	reg |= best_mode << regbits->midle_shift;
 	sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg);
@@ -978,6 +981,9 @@  static int sysc_disable_module(struct device *dev)
 		return ret;
 	}
 
+	if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_MSTANDBY)
+		best_mode = SYSC_IDLE_FORCE;
+
 	reg &= ~(SYSC_IDLE_MASK << regbits->midle_shift);
 	reg |= best_mode << regbits->midle_shift;
 	sysc_write(ddata, ddata->offsets[SYSC_SYSCONFIG], reg);
@@ -1251,6 +1257,8 @@  static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 	SYSC_QUIRK("gpu", 0x50000000, 0x14, -1, -1, 0x00010201, 0xffffffff, 0),
 	SYSC_QUIRK("gpu", 0x50000000, 0xfe00, 0xfe10, -1, 0x40000000 , 0xffffffff,
 		   SYSC_MODULE_QUIRK_SGX),
+	SYSC_QUIRK("usb_otg_hs", 0, 0x400, 0x404, 0x408, 0x00000050,
+		   0xffffffff, SYSC_QUIRK_SWSUP_SIDLE | SYSC_QUIRK_SWSUP_MSTANDBY),
 	SYSC_QUIRK("wdt", 0, 0, 0x10, 0x14, 0x502a0500, 0xfffff0f0,
 		   SYSC_MODULE_QUIRK_WDT),
 	/* Watchdog on am3 and am4 */
@@ -1309,8 +1317,6 @@  static const struct sysc_revision_quirk sysc_revision_quirks[] = {
 	SYSC_QUIRK("usbhstll", 0, 0, 0x10, 0x14, 0x00000008, 0xffffffff, 0),
 	SYSC_QUIRK("usb_host_hs", 0, 0, 0x10, 0x14, 0x50700100, 0xffffffff, 0),
 	SYSC_QUIRK("usb_host_hs", 0, 0, 0x10, -1, 0x50700101, 0xffffffff, 0),
-	SYSC_QUIRK("usb_otg_hs", 0, 0x400, 0x404, 0x408, 0x00000050,
-		   0xffffffff, 0),
 	SYSC_QUIRK("vfpe", 0, 0, 0x104, -1, 0x4d001200, 0xffffffff, 0),
 #endif
 };