diff options
Diffstat (limited to 'arch/arm/mach-imx/sip.c')
| -rw-r--r-- | arch/arm/mach-imx/sip.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/sip.c b/arch/arm/mach-imx/sip.c index 813c2ae..968e7cf 100644 --- a/arch/arm/mach-imx/sip.c +++ b/arch/arm/mach-imx/sip.c @@ -20,3 +20,25 @@ unsigned long call_imx_sip(unsigned long id, unsigned long reg0, return regs.regs[0]; } + +/* + * Do an SMC call to return 2 registers by having reg1 passed in by reference + */ +unsigned long call_imx_sip_ret2(unsigned long id, unsigned long reg0, + unsigned long *reg1, unsigned long reg2, + unsigned long reg3) +{ + struct pt_regs regs; + + regs.regs[0] = id; + regs.regs[1] = reg0; + regs.regs[2] = *reg1; + regs.regs[3] = reg2; + regs.regs[4] = reg3; + + smc_call(®s); + + *reg1 = regs.regs[1]; + + return regs.regs[0]; +} |