diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/808-i2c-0004-MLK-16203-enable-runtime-pm-of-i2c-temporary-when-do.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/808-i2c-0004-MLK-16203-enable-runtime-pm-of-i2c-temporary-when-do.patch | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/target/linux/layerscape/patches-5.4/808-i2c-0004-MLK-16203-enable-runtime-pm-of-i2c-temporary-when-do.patch b/target/linux/layerscape/patches-5.4/808-i2c-0004-MLK-16203-enable-runtime-pm-of-i2c-temporary-when-do.patch deleted file mode 100644 index 60c49bf99a..0000000000 --- a/target/linux/layerscape/patches-5.4/808-i2c-0004-MLK-16203-enable-runtime-pm-of-i2c-temporary-when-do.patch +++ /dev/null @@ -1,58 +0,0 @@ -From 4a76bb8458cbe93309314c58f276087569b2fc48 Mon Sep 17 00:00:00 2001 -From: Gao Pan <pandy.gao@nxp.com> -Date: Fri, 18 Aug 2017 18:35:11 +0800 -Subject: [PATCH] MLK-16203 enable runtime pm of i2c temporary when do system - suspend - -When we do system suspend, the runtime pm will be disabled, but we need -to control the PMIC to power on/off the regulator, if the runtime pm is -disabled, if will failed to request runtime wakeup. So data transfer will -failed. - -Signed-off-by: Bai Ping <ping.bai@nxp.com> -Signed-off-by: Gao Pan <pandy.gao@nxp.com> -Signed-off-by: Vipul Kumar <vipul_kumar@mentor.com> -(cherry picked from commit 93adab71408f1f162015e77715dd04ce2301d673) ---- - drivers/i2c/busses/i2c-imx.c | 12 +++++++++++- - 1 file changed, 11 insertions(+), 1 deletion(-) - ---- a/drivers/i2c/busses/i2c-imx.c -+++ b/drivers/i2c/busses/i2c-imx.c -@@ -924,10 +924,17 @@ static int i2c_imx_xfer(struct i2c_adapt - unsigned int i, temp; - int result; - bool is_lastmsg = false; -+ bool enable_runtime_pm = false; - struct imx_i2c_struct *i2c_imx = i2c_get_adapdata(adapter); - - dev_dbg(&i2c_imx->adapter.dev, "<%s>\n", __func__); - -+ -+ if (!pm_runtime_enabled(i2c_imx->adapter.dev.parent)) { -+ pm_runtime_enable(i2c_imx->adapter.dev.parent); -+ enable_runtime_pm = true; -+ } -+ - result = pm_runtime_get_sync(i2c_imx->adapter.dev.parent); - if (result < 0) - goto out; -@@ -999,6 +1006,9 @@ fail0: - pm_runtime_put_autosuspend(i2c_imx->adapter.dev.parent); - - out: -+ if (enable_runtime_pm) -+ pm_runtime_disable(i2c_imx->adapter.dev.parent); -+ - dev_dbg(&i2c_imx->adapter.dev, "<%s> exit with: %s: %d\n", __func__, - (result < 0) ? "error" : "success msg", - (result < 0) ? result : num); -@@ -1289,7 +1299,7 @@ static int i2c_imx_resume(struct device - } - - static const struct dev_pm_ops i2c_imx_pm_ops = { -- SET_SYSTEM_SLEEP_PM_OPS(i2c_imx_suspend, i2c_imx_resume) -+ SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(i2c_imx_suspend, i2c_imx_resume) - SET_RUNTIME_PM_OPS(i2c_imx_runtime_suspend, - i2c_imx_runtime_resume, NULL) - }; |