Messages in this thread Patch in this message | | | From | Stephen Boyd <> | Subject | [PATCH v2 2/2] soc: qcom: spm: Fix idle on THUMB2 kernels | Date | Tue, 2 Jun 2015 12:12:58 -0700 |
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The ifc6410 firmware always enters the kernel in ARM state from deep idle. Use the cpu_resume_arm() wrapper instead of cpu_resume() to property switch into the THUMB2 state when we wake up from idle.
This fixes a problem reported by Kevin Hilman on next-20150601 where the ifc6410 fails to boot a THUMB2 kernel because the platform's firmware always enters the kernel in ARM mode from deep idle states.
Reported-by: Kevin Hilman <khilman@linaro.org> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Lina Iyer <lina.iyer@linaro.org> Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> --- drivers/soc/qcom/spm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/soc/qcom/spm.c b/drivers/soc/qcom/spm.c index b562af816c0a..b04b05a0904e 100644 --- a/drivers/soc/qcom/spm.c +++ b/drivers/soc/qcom/spm.c @@ -260,7 +260,7 @@ static int __init qcom_cpuidle_init(struct device_node *cpu_node, int cpu) /* We have atleast one power down mode */ cpumask_clear(&mask); cpumask_set_cpu(cpu, &mask); - qcom_scm_set_warm_boot_addr(cpu_resume, &mask); + qcom_scm_set_warm_boot_addr(cpu_resume_arm, &mask); } per_cpu(qcom_idle_ops, cpu) = fns; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project
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