From: Tony Lindgren <tony@atomide.com>
To: linux-omap@vger.kernel.org
Cc: Nishanth Menon <nm@ti.com>, Tero Kristo <t-kristo@ti.com>,
Dave Gerlach <d-gerlach@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org,
Peter Ujfalusi <peter.ujfalusi@ti.com>,
devicetree@vger.kernel.org, Faiz Abbas <faiz_abbas@ti.com>,
Keerthy <j-keerthy@ti.com>, Suman Anna <s-anna@ti.com>,
Rob Herring <robh@kernel.org>,
linux-arm-kernel@lists.infradead.org,
Roger Quadros <rogerq@ti.com>
Subject: [PATCH 06/12] bus: ti-sysc: Handle swsup idle mode quirks
Date: Mon, 27 May 2019 05:13:42 -0700 [thread overview]
Message-ID: <20190527121348.45251-7-tony@atomide.com> (raw)
In-Reply-To: <20190527121348.45251-1-tony@atomide.com>
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.
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
drivers/bus/ti-sysc.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 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
@@ -872,10 +872,15 @@ 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);
@@ -959,10 +964,14 @@ static int sysc_disable_module(struct device *dev)
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);
--
2.21.0
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next prev parent reply other threads:[~2019-05-27 12:15 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-27 12:13 [PATCH 00/12] ti-sysc driver changes to drop custom hwmods property Tony Lindgren
2019-05-27 12:13 ` [PATCH 01/12] bus: ti-sysc: Support 16-bit writes too Tony Lindgren
2019-05-28 11:06 ` David Laight
2019-05-28 12:27 ` Tony Lindgren
2019-05-27 12:13 ` [PATCH 02/12] bus: ti-sysc: Make OCP reset work for sysstatus and sysconfig reset bits Tony Lindgren
2019-05-27 12:13 ` [PATCH 03/12] bus: ti-sysc: Allow QUIRK_LEGACY_IDLE even if legacy_mode is not set Tony Lindgren
2019-05-27 12:13 ` [PATCH 04/12] bus: ti-sysc: Enable interconnect target module autoidle bit on enable Tony Lindgren
2019-05-27 12:13 ` [PATCH 05/12] bus: ti-sysc: Handle clockactivity for enable and disable Tony Lindgren
2019-05-27 12:13 ` Tony Lindgren [this message]
2019-05-27 12:13 ` [PATCH 07/12] bus: ti-sysc: Set ENAWAKEUP if available Tony Lindgren
2019-05-27 12:13 ` [PATCH 08/12] bus: ti-sysc: Add support for disabling module without legacy mode Tony Lindgren
2019-05-27 12:13 ` [PATCH 09/12] bus: ti-sysc: Do rstctrl reset handling in two phases Tony Lindgren
2019-05-27 12:13 ` [PATCH 10/12] bus: ti-sysc: Detect uarts also on omap34xx Tony Lindgren
2019-05-27 12:13 ` [PATCH 11/12] ARM: dts: Drop legacy custom hwmods property for omap4 uart Tony Lindgren
2019-05-27 12:13 ` [PATCH 12/12] ARM: dts: Drop legacy custom hwmods property for omap4 mmc Tony Lindgren
2019-05-28 0:58 ` [PATCH 00/12] ti-sysc driver changes to drop custom hwmods property Keerthy
2019-05-28 6:16 ` Tony Lindgren
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