68 lines
2.0 KiB
Diff
68 lines
2.0 KiB
Diff
From d0520a166cdeccf2821a45483602fc24a1772569 Mon Sep 17 00:00:00 2001
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From: Alex Gonzalez <alex.gonzalez@digi.com>
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Date: Fri, 20 Apr 2018 20:20:30 +0200
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Subject: [PATCH] mach-imx: pm-imx6: Add hooks for board specific
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implementation
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This commit implements two new pm hooks in pm_imx6.c (begin & end) that,
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optionally, can be implemented by the platform code.
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This is needed on platforms like the CC6UL where the i.MX6UL has to
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notify the MCA when suspending the system or resuming from suspend.
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Upstream-Status: Inappropriate [DEY specific]
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Signed-off-by: Alex Gonzalez <alex.gonzalez@digi.com>
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Signed-off-by: Pedro Perez de Heredia <pedro.perez@digi.com>
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---
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arch/arm/mach-imx/pm-imx6.c | 24 ++++++++++++++++++++++++
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1 file changed, 24 insertions(+)
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diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
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index 87f45b926c78..1a4d1ea92687 100644
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--- a/arch/arm/mach-imx/pm-imx6.c
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+++ b/arch/arm/mach-imx/pm-imx6.c
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@@ -69,6 +69,14 @@ static void __iomem *suspend_ocram_base;
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static void (*imx6_suspend_in_ocram_fn)(void __iomem *ocram_vbase);
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/*
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+ * Function pointers to optional board pm functions
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+ */
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+int (*imx6_board_pm_begin)(suspend_state_t);
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+void (*imx6_board_pm_end)(void);
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+EXPORT_SYMBOL(imx6_board_pm_begin);
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+EXPORT_SYMBOL(imx6_board_pm_end);
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+
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+/*
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* suspend ocram space layout:
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* ======================== high address ======================
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* .
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@@ -427,12 +435,28 @@ static int imx6q_pm_enter(suspend_state_t state)
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return 0;
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}
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+static int imx6q_pm_begin(suspend_state_t state)
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+{
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+ if (imx6_board_pm_begin)
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+ return imx6_board_pm_begin(state);
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+
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+ return 0;
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+}
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+
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+static void imx6q_pm_end(void)
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+{
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+ if (imx6_board_pm_end)
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+ imx6_board_pm_end();
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+}
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+
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static int imx6q_pm_valid(suspend_state_t state)
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{
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return (state == PM_SUSPEND_STANDBY || state == PM_SUSPEND_MEM);
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}
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static const struct platform_suspend_ops imx6q_pm_ops = {
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+ .begin = imx6q_pm_begin,
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+ .end = imx6q_pm_end,
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.enter = imx6q_pm_enter,
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.valid = imx6q_pm_valid,
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};
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