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| author | Tony Lindgren <tony@atomide.com> | 2014-09-18 08:58:28 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2014-09-18 08:58:28 -0700 |
| commit | 6a08b11adda53b89d32d4becac4d7f062a0e2d99 (patch) | |
| tree | 5c851c7b27025e6d4ea63007157e2feb2ba61c6d /arch/arm | |
| parent | 377fb3f5d9a34b2913939e0620c1c585b5913bab (diff) | |
| download | linux-6a08b11adda53b89d32d4becac4d7f062a0e2d99.tar.gz linux-6a08b11adda53b89d32d4becac4d7f062a0e2d99.tar.bz2 linux-6a08b11adda53b89d32d4becac4d7f062a0e2d99.zip | |
ARM: OMAP2+: Add hwmod flag for HWMOD_RECONFIG_IO_CHAIN
Commit cc824534d4fe ("ARM: OMAP2+: hwmod: Rearm wake-up interrupts
for DT when MUSB is idled") fixed issues with hung UART wake-up
events by calling _reconfigure_io_chain() when MUSB is connected
or disconnected.
As pointed out by Paul Walmsley, we may need to also call
_reconfigure_io_chain() in other cases, so it should be a separate
flag. Let's add HWMOD_RECONFIG_IO_CHAIN as suggested by Paul.
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.c | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 4 |
3 files changed, 8 insertions, 4 deletions
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 8fd87a3055bf..e96808ef1adb 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -2185,7 +2185,7 @@ static int _enable(struct omap_hwmod *oh) oh->mux->pads_dynamic))) { omap_hwmod_mux(oh->mux, _HWMOD_STATE_ENABLED); _reconfigure_io_chain(); - } else if (oh->flags & HWMOD_FORCE_MSTANDBY) { + } else if (oh->flags & HWMOD_RECONFIG_IO_CHAIN) { _reconfigure_io_chain(); } @@ -2293,7 +2293,7 @@ static int _idle(struct omap_hwmod *oh) if (oh->mux && oh->mux->pads_dynamic) { omap_hwmod_mux(oh->mux, _HWMOD_STATE_IDLE); _reconfigure_io_chain(); - } else if (oh->flags & HWMOD_FORCE_MSTANDBY) { + } else if (oh->flags & HWMOD_RECONFIG_IO_CHAIN) { _reconfigure_io_chain(); } diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h index 0f97d635ff90..512f809a3f4d 100644 --- a/arch/arm/mach-omap2/omap_hwmod.h +++ b/arch/arm/mach-omap2/omap_hwmod.h @@ -514,6 +514,9 @@ struct omap_hwmod_omap4_prcm { * HWMOD_SWSUP_SIDLE_ACT: omap_hwmod code should manually bring the module * out of idle, but rely on smart-idle to the put it back in idle, * so the wakeups are still functional (Only known case for now is UART) + * HWMOD_RECONFIG_IO_CHAIN: omap_hwmod code needs to reconfigure wake-up + * events by calling _reconfigure_io_chain() when a device is enabled + * or idled. */ #define HWMOD_SWSUP_SIDLE (1 << 0) #define HWMOD_SWSUP_MSTANDBY (1 << 1) @@ -528,6 +531,7 @@ struct omap_hwmod_omap4_prcm { #define HWMOD_BLOCK_WFI (1 << 10) #define HWMOD_FORCE_MSTANDBY (1 << 11) #define HWMOD_SWSUP_SIDLE_ACT (1 << 12) +#define HWMOD_RECONFIG_IO_CHAIN (1 << 13) /* * omap_hwmod._int_flags definitions diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c index e9516b454e76..61cd49d26f6d 100644 --- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c @@ -1730,8 +1730,8 @@ static struct omap_hwmod omap3xxx_usbhsotg_hwmod = { * Note that musb has OTG_FORCESTDBY register that controls MSTANDBY * signal when MIDLEMODE is set to force-idle. */ - .flags = HWMOD_NO_OCP_AUTOIDLE | HWMOD_SWSUP_SIDLE - | HWMOD_FORCE_MSTANDBY, + .flags = HWMOD_NO_OCP_AUTOIDLE | HWMOD_SWSUP_SIDLE | + HWMOD_FORCE_MSTANDBY | HWMOD_RECONFIG_IO_CHAIN, }; /* usb_otg_hs */ |