diff options
Diffstat (limited to 'meta-agl-bsp/meta-renesas/recipes-kernel/linux/linux/hibernation/0007-Add-rcar-i2c-hibernation-code.patch')
| -rwxr-xr-x | meta-agl-bsp/meta-renesas/recipes-kernel/linux/linux/hibernation/0007-Add-rcar-i2c-hibernation-code.patch | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/meta-agl-bsp/meta-renesas/recipes-kernel/linux/linux/hibernation/0007-Add-rcar-i2c-hibernation-code.patch b/meta-agl-bsp/meta-renesas/recipes-kernel/linux/linux/hibernation/0007-Add-rcar-i2c-hibernation-code.patch new file mode 100755 index 000000000..bba1eb401 --- /dev/null +++ b/meta-agl-bsp/meta-renesas/recipes-kernel/linux/linux/hibernation/0007-Add-rcar-i2c-hibernation-code.patch @@ -0,0 +1,69 @@ +From 6c133013b75d88d5b4514dfecb3089f830b82d65 Mon Sep 17 00:00:00 2001 +From: Yuichi Kusakabe <yuichi.kusakabe@jp.fujitsu.com> +Date: Thu, 18 May 2017 17:35:37 +0900 +Subject: [PATCH 07/15] Add rcar-i2c hibernation code + +Signed-off-by: Yuichi Kusakabe <yuichi.kusakabe@jp.fujitsu.com> +--- + drivers/i2c/busses/i2c-rcar.c | 38 ++++++++++++++++++++++++++++++++++++++ + 1 file changed, 38 insertions(+) + +diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c +index 8242002..c6a5a4b 100644 +--- a/drivers/i2c/busses/i2c-rcar.c ++++ b/drivers/i2c/busses/i2c-rcar.c +@@ -754,6 +754,43 @@ static int rcar_i2c_probe(struct platform_device *pdev) + + return 0; + } ++static int rcar_i2c_suspend(struct device *dev) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct rcar_i2c_priv *priv = platform_get_drvdata(pdev); ++ pr_debug("suspend: i2c adapter name %s", priv->adap.name); ++ pr_debug("suspend: ICSCR: %08x\n", readl(priv->io + ICSCR)); ++ pr_debug("suspend: ICMCR: %08x\n", readl(priv->io + ICMCR)); ++ pr_debug("suspend: ICSSR: %08x\n", readl(priv->io + ICSSR)); ++ pr_debug("suspend: ICMSR: %08x\n", readl(priv->io + ICMSR)); ++ pr_debug("suspend: ICSIER: %08x\n", readl(priv->io + ICSIER)); ++ pr_debug("suspend: ICMIER: %08x\n", readl(priv->io + ICMIER)); ++ pr_debug("suspend: ICCCR: %08x\n", readl(priv->io + ICCCR)); ++ pr_debug("suspend: ICSAR: %08x\n", readl(priv->io + ICSAR)); ++ pr_debug("suspend: ICMAR: %08x\n", readl(priv->io + ICMAR)); ++ clk_disable(priv->clk); ++ return 0; ++} ++static int rcar_i2c_resume(struct device *dev) ++{ ++ struct platform_device *pdev = to_platform_device(dev); ++ struct rcar_i2c_priv *priv = platform_get_drvdata(pdev); ++ clk_enable(priv->clk); ++ pr_debug("resume: i2c adapter name %s", priv->adap.name); ++ pr_debug("resume: ICSCR: %08x\n", readl(priv->io + ICSCR)); ++ pr_debug("resume: ICMCR: %08x\n", readl(priv->io + ICMCR)); ++ pr_debug("resume: ICSSR: %08x\n", readl(priv->io + ICSSR)); ++ pr_debug("resume: ICMSR: %08x\n", readl(priv->io + ICMSR)); ++ pr_debug("resume: ICSIER: %08x\n", readl(priv->io + ICSIER)); ++ pr_debug("resume: ICMIER: %08x\n", readl(priv->io + ICMIER)); ++ pr_debug("resume: ICCCR: %08x\n", readl(priv->io + ICCCR)); ++ pr_debug("resume: ICSAR: %08x\n", readl(priv->io + ICSAR)); ++ pr_debug("resume: ICMAR: %08x\n", readl(priv->io + ICMAR)); ++ return 0; ++} ++static const struct dev_pm_ops rcar_i2c_pm_ops = { ++ SET_SYSTEM_SLEEP_PM_OPS(rcar_i2c_suspend, rcar_i2c_resume) ++}; + + static int rcar_i2c_remove(struct platform_device *pdev) + { +@@ -780,6 +817,7 @@ static struct platform_driver rcar_i2c_driver = { + .name = "i2c-rcar", + .owner = THIS_MODULE, + .of_match_table = rcar_i2c_dt_ids, ++ .pm = &rcar_i2c_pm_ops, + }, + .probe = rcar_i2c_probe, + .remove = rcar_i2c_remove, +-- +1.8.3.1 + |