From: Pascal Huerst Date: Wed, 6 May 2015 13:07:04 +0000 (+0200) Subject: i2c: omap: Add calls for pinctrl state select X-Git-Tag: firefly_0821_release~176^2~1561^2~44 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=096ea30c91b521c77964ee8c214f7ce3b9d08e7b;p=firefly-linux-kernel-4.4.55.git i2c: omap: Add calls for pinctrl state select This adds calls to pinctrl subsystem in order to switch pin states on suspend/resume if you provide a "sleep" state in DT. If no "sleep" state is provided in the DT, these calls turn to NOPs, so we don't need error checking here. Signed-off-by: Pascal Huerst Reviewed-by: Sekhar Nori Signed-off-by: Wolfram Sang --- diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c index 0e894193accf..826194182118 100644 --- a/drivers/i2c/busses/i2c-omap.c +++ b/drivers/i2c/busses/i2c-omap.c @@ -38,6 +38,7 @@ #include #include #include +#include /* I2C controller revisions */ #define OMAP_I2C_OMAP1_REV_2 0x20 @@ -1423,6 +1424,8 @@ static int omap_i2c_runtime_suspend(struct device *dev) omap_i2c_read_reg(_dev, OMAP_I2C_STAT_REG); } + pinctrl_pm_select_sleep_state(dev); + return 0; } @@ -1431,6 +1434,8 @@ static int omap_i2c_runtime_resume(struct device *dev) struct platform_device *pdev = to_platform_device(dev); struct omap_i2c_dev *_dev = platform_get_drvdata(pdev); + pinctrl_pm_select_default_state(dev); + if (!_dev->regs) return 0;