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

[Tony Lindgren]

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

Signed-off-by: Tony Lindgren <t...@atomide.com>
---
 drivers/bus/ti-sysc.c | 10 ++++++++--
 1 file changed, 8 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
@@ -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
 };
-- 
2.23.0