Messages in this thread Patch in this message | | | From | Sebastian Reichel <> | Subject | [PATCHv2] ARM: OMAP: PM: stop early on systems without twl | Date | Tue, 13 Jun 2017 11:46:17 +0200 |
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From: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
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@collabora.co.uk> --- 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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