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670dedbbd7
Backport cpufreq changes from upstream so that the MediaTek MT7988 SoC
can be supported.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit e4555d69a1)
31 lines
1.2 KiB
Diff
31 lines
1.2 KiB
Diff
From f6114c2bc563a8050e9dc874ad87e1448865f031 Mon Sep 17 00:00:00 2001
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From: Jia-Wei Chang <jia-wei.chang@mediatek.com>
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Date: Fri, 22 Apr 2022 15:52:33 +0800
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Subject: [PATCH 07/21] cpufreq: mediatek: Make sram regulator optional
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For some MediaTek SoCs, like MT8186, it's possible that the sram regulator
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is shared between CPU and CCI.
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We hope regulator framework can return error for error handling rather
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than a dummy handler from regulator_get api.
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Therefore, we choose to use regulator_get_optional.
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Signed-off-by: Jia-Wei Chang <jia-wei.chang@mediatek.com>
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Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com>
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Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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---
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drivers/cpufreq/mediatek-cpufreq.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/cpufreq/mediatek-cpufreq.c
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+++ b/drivers/cpufreq/mediatek-cpufreq.c
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@@ -354,7 +354,7 @@ static int mtk_cpu_dvfs_info_init(struct
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}
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/* Both presence and absence of sram regulator are valid cases. */
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- info->sram_reg = regulator_get_exclusive(cpu_dev, "sram");
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+ info->sram_reg = regulator_get_optional(cpu_dev, "sram");
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if (IS_ERR(info->sram_reg))
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info->sram_reg = NULL;
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else {
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