diff options
| author | Tony Lindgren <tony@atomide.com> | 2019-05-27 14:51:55 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2019-05-28 15:19:16 +0300 |
| commit | fb685f1c190ec8c085e499f138752b2b0a2836de (patch) | |
| tree | 055f348be2b72b535f5f5e84f0229360521c1bf3 /drivers/bus | |
| parent | ae9ae12e9daa1e2139c3ff729d60f3c16d6e9b61 (diff) | |
| download | linux-fb685f1c190ec8c085e499f138752b2b0a2836de.tar.xz | |
bus: ti-sysc: Handle swsup idle mode quirks
Some modules have idlemodes wired, but not completely functional. We have
quirks for SWSUP_SIDLE and SWSUP_SIDLE_ACT to manage interconnect target
modules without hardware support, but we've been only using them so far
in legacy mode. Let's add support for SWSUP quirks in non-legacy mode too.
Tested-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/ti-sysc.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c index 31035492f1be..4a0146424902 100644 --- a/drivers/bus/ti-sysc.c +++ b/drivers/bus/ti-sysc.c @@ -886,10 +886,15 @@ static int sysc_enable_module(struct device *dev) if (!idlemodes || regbits->sidle_shift < 0) goto set_midle; - best_mode = fls(ddata->cfg.sidlemodes) - 1; - if (best_mode > SYSC_IDLE_MASK) { - dev_err(dev, "%s: invalid sidlemode\n", __func__); - return -EINVAL; + if (ddata->cfg.quirks & (SYSC_QUIRK_SWSUP_SIDLE | + SYSC_QUIRK_SWSUP_SIDLE_ACT)) { + best_mode = SYSC_IDLE_NO; + } else { + best_mode = fls(ddata->cfg.sidlemodes) - 1; + if (best_mode > SYSC_IDLE_MASK) { + dev_err(dev, "%s: invalid sidlemode\n", __func__); + return -EINVAL; + } } reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift); @@ -973,10 +978,14 @@ set_sidle: if (!idlemodes || regbits->sidle_shift < 0) return 0; - ret = sysc_best_idle_mode(idlemodes, &best_mode); - if (ret) { - dev_err(dev, "%s: invalid sidlemode\n", __func__); - return ret; + if (ddata->cfg.quirks & SYSC_QUIRK_SWSUP_SIDLE) { + best_mode = SYSC_IDLE_FORCE; + } else { + ret = sysc_best_idle_mode(idlemodes, &best_mode); + if (ret) { + dev_err(dev, "%s: invalid sidlemode\n", __func__); + return ret; + } } reg &= ~(SYSC_IDLE_MASK << regbits->sidle_shift); |