Merge tag 'omap-for-v5.10/soc-part2-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc

One more SoC change for omaps for v5.10 merge window

Remove debugfs dependency for enabling off mode during idle
for omap3 by enabling it automatically based on the PMIC
configuration.

* tag 'omap-for-v5.10/soc-part2-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: omap3: enable off mode automatically

Link: https://lore.kernel.org/r/pull-1601445968-476435@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>

4 files changed, 27 insertions, 7 deletions

diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index fceb1e525d26..919d35d5b325 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -34,8 +34,6 @@
 #include "prm2xxx_3xxx.h"
 #include "pm.h"
 
-u32 enable_off_mode;
-
 #ifdef CONFIG_DEBUG_FS
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 01ec1ba4878b..da829a90fe8c 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -28,6 +28,8 @@
 #include "clockdomain.h"
 #include "pm.h"
 
+u32 enable_off_mode;
+
 #ifdef CONFIG_SUSPEND
 /*
  * omap_pm_suspend: points to a function that does the SoC-specific
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 2a883a0c1fcd..80e84ae66aee 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -49,11 +49,7 @@ static inline int omap4_opp_init(void)
 extern int omap3_pm_get_suspend_state(struct powerdomain *pwrdm);
 extern int omap3_pm_set_suspend_state(struct powerdomain *pwrdm, int state);
 
-#ifdef CONFIG_PM_DEBUG
 extern u32 enable_off_mode;
-#else
-#define enable_off_mode 0
-#endif
 
 #if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS)
 extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev);
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index f5dfddf492e2..71c1d18aafbc 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -25,6 +25,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 #include <linux/omap-gpmc.h>
 
 #include <trace/events/power.h>
@@ -410,7 +411,12 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
 	if (!pwrst)
 		return -ENOMEM;
 	pwrst->pwrdm = pwrdm;
-	pwrst->next_state = PWRDM_POWER_RET;
+
+	if (enable_off_mode)
+		pwrst->next_state = PWRDM_POWER_OFF;
+	else
+		pwrst->next_state = PWRDM_POWER_RET;
+
 	list_add(&pwrst->node, &pwrst_list);
 
 	if (pwrdm_has_hdwr_sar(pwrdm))
@@ -444,6 +450,22 @@ static void __init pm_errata_configure(void)
 	}
 }
 
+static void __init omap3_pm_check_pmic(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "ti,twl4030-power-idle");
+	if (!np)
+		np = of_find_compatible_node(NULL, NULL, "ti,twl4030-power-idle-osc-off");
+
+	if (np) {
+		of_node_put(np);
+		enable_off_mode = 1;
+	} else {
+		enable_off_mode = 0;
+	}
+}
+
 int __init omap3_pm_init(void)
 {
 	struct power_state *pwrst, *tmp;
@@ -477,6 +499,8 @@ int __init omap3_pm_init(void)
 		goto err2;
 	}
 
+	omap3_pm_check_pmic();
+
 	ret = pwrdm_for_each(pwrdms_setup, NULL);
 	if (ret) {
 		pr_err("Failed to setup powerdomains\n");