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Commit fb685f1c authored by Tony Lindgren's avatar Tony Lindgren
Browse files

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: default avatarKeerthy <j-keerthy@ti.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent ae9ae12e

drivers/bus/ti-sysc.c

+17 −8
Original line number Diff line number Diff line
@@ -886,11 +886,16 @@ static int sysc_enable_module(struct device *dev) 
	if (!idlemodes || regbits->sidle_shift < 0)

		goto set_midle;



	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);

	reg |= best_mode << regbits->sidle_shift;
@@ -973,11 +978,15 @@ static int sysc_disable_module(struct device *dev) 
	if (!idlemodes || regbits->sidle_shift < 0)

		return 0;



	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);

	reg |= best_mode << regbits->sidle_shift;