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platform: starfive: return error if needed devices are not present

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Jh7110's reset driver needs power management device and clock controller
device to work. Currently, the driver proceed anyway without these
devices, and invalid addresses (jh7110_inst.pmu_reg_base and
jh7110_inst.clk_reg_base) are used during reboot, which causes
unpredictable broken behaviors.

If these devices are not present, return -SBI_ENODEV.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Tested-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Nam Cao 2024-02-22 09:16:18 +01:00 • committed by Anup Patel
parent 80ae0464c1
commit 3edf0447df
1 changed files with 4 additions and 0 deletions
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4
platform/generic/starfive/jh7110.c
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@ -239,6 +239,8 @@ static int starfive_jh7110_inst_init(void *fdt)
if (rc)
goto err;
jh7110_inst.pmu_reg_base = addr;
} else {
return -SBI_ENODEV;
}
noff = fdt_node_offset_by_compatible(fdt, -1, "starfive,jh7110-syscrg");
@ -247,6 +249,8 @@ static int starfive_jh7110_inst_init(void *fdt)
if (rc)
goto err;
jh7110_inst.clk_reg_base = addr;
} else {
return -SBI_ENODEV;
}
if (pmic_inst.adapter) {