6.6-stable review patch. If anyone has any objections, please let me know.
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From: Andreas Kemnade andreas@kemnade.info
commit 7397daf1029d5bfd3415ec8622f5179603d5702d upstream.
The late init call just writes to omap4 registers as soon as CONFIG_MFD_CPCAP is enabled without checking whether the cpcap driver is actually there or the SoC is indeed an OMAP4. Rather do these things only with the right device combination.
Fixes booting the BT200 with said configuration enabled and non-factory X-Loader and probably also some surprising behavior on other devices.
Fixes: c145649bf262 ("ARM: OMAP2+: Configure voltage controller for cpcap to low-speed") CC: stable@vger.kernel.org Signed-off-by: Andreas Kemnade andreas@kemnade.info Reivewed-by: Tony Lindgren tony@atomide.com Link: https://lore.kernel.org/r/20250331144439.769697-1-andreas@kemnade.info Signed-off-by: Kevin Hilman khilman@baylibre.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/arm/mach-omap2/pmic-cpcap.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
--- a/arch/arm/mach-omap2/pmic-cpcap.c +++ b/arch/arm/mach-omap2/pmic-cpcap.c @@ -264,7 +264,11 @@ int __init omap4_cpcap_init(void)
static int __init cpcap_late_init(void) { - omap4_vc_set_pmic_signaling(PWRDM_POWER_RET); + if (!of_find_compatible_node(NULL, NULL, "motorola,cpcap")) + return 0; + + if (soc_is_omap443x() || soc_is_omap446x() || soc_is_omap447x()) + omap4_vc_set_pmic_signaling(PWRDM_POWER_RET);
return 0; }