From: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
Motorola Droid 4 has an OMAP4, but no TWL6030. It currently
complains verbosely about this during boot:
twl: not initialized
twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1375000 Vs max 1316660
twl6030_uv_to_vsel:OUT OF RANGE! non mapped vsel for 1410000 Vs max 1316660
omap2_set_init_voltage: unable to find boot up OPP for vdd_core
omap2_set_init_voltage: unable to set vdd_core
omap2_set_init_voltage: unable to find boot up OPP for vdd_iva
omap2_set_init_voltage: unable to set vdd_iva
While proper support for CPCAP should be added at some point,
let's exit early in omap2_common_pm_late_init() until that
has been implemented to avoid the above errors. There is still
a reminder about missing PM in dmesg:
Missing OMAP4 PM for this platform!
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
---
Changes since PATCHv1:
* actually add the message about missing PM support
* check if TWL is enabled at all
---
arch/arm/mach-omap2/pm.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 63027e60cc20..92e335decc61 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -240,6 +240,10 @@ omap_postcore_initcall(omap2_common_pm_init);
int __init omap2_common_pm_late_init(void)
{
+#if IS_BUILTIN(CONFIG_TWL6040_CORE) || IS_BUILTIN(CONFIG_TWL4030_CORE)
+ if (!twl_rev())
+ goto no_twl;
+
/* Init the voltage layer */
omap3_twl_init();
omap4_twl_init();
@@ -253,4 +257,9 @@ int __init omap2_common_pm_late_init(void)
omap_devinit_smartreflex();
return 0;
+
+no_twl:
+#endif
+ pr_err("OMAP4 PM not supported!\n");
+ return -ENODEV;
}
--
2.11.0
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