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cpufreq: mediatek: Make sram regulator optional

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For some MediaTek SoCs, like MT8186, it's possible that the sram regulator
is shared between CPU and CCI.
We hope regulator framework can return error for error handling rather
than a dummy handler from regulator_get api.
Therefore, we choose to use regulator_get_optional.

Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.com>
Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Jia-Wei Chang 2022-04-22 15:52:33 +08:00 committed by Viresh Kumar
parent bffcd33313
commit ffa7bdf7f3
1 changed files with 1 additions and 1 deletions
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2
drivers/cpufreq/mediatek-cpufreq.c
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@ -352,7 +352,7 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
}
/* Both presence and absence of sram regulator are valid cases. */
info->sram_reg = regulator_get_exclusive(cpu_dev, "sram");
info->sram_reg = regulator_get_optional(cpu_dev, "sram");
if (IS_ERR(info->sram_reg))
info->sram_reg = NULL;
else {