diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/802-can-0025-can-flexcan-add-LPSR-mode-support-for-i.MX7D.patch')
-rw-r--r-- | target/linux/layerscape/patches-5.4/802-can-0025-can-flexcan-add-LPSR-mode-support-for-i.MX7D.patch | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/target/linux/layerscape/patches-5.4/802-can-0025-can-flexcan-add-LPSR-mode-support-for-i.MX7D.patch b/target/linux/layerscape/patches-5.4/802-can-0025-can-flexcan-add-LPSR-mode-support-for-i.MX7D.patch deleted file mode 100644 index b8349e6d6d..0000000000 --- a/target/linux/layerscape/patches-5.4/802-can-0025-can-flexcan-add-LPSR-mode-support-for-i.MX7D.patch +++ /dev/null @@ -1,52 +0,0 @@ -From 211c20a459a0fd4868ed22ecfc2b2186d9df6da0 Mon Sep 17 00:00:00 2001 -From: Joakim Zhang <qiangqing.zhang@nxp.com> -Date: Tue, 30 Jul 2019 14:43:25 +0800 -Subject: [PATCH] can: flexcan: add LPSR mode support for i.MX7D - -For i.MX7D LPSR mode, the controller will lost power and got the -configuration state lost after system resume back. -So we need to set pinctrl state again and re-start chip to do -re-configuration after resume. - -For wakeup case, it should not set pinctrl to sleep state by -pinctrl_pm_select_sleep_state. -For interface is not up before suspend case, we don't need -re-configure as it will be configured by user later by interface up. - -Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> ---- - drivers/net/can/flexcan.c | 21 ++++++++++++++------- - 1 file changed, 14 insertions(+), 7 deletions(-) - ---- a/drivers/net/can/flexcan.c -+++ b/drivers/net/can/flexcan.c -@@ -26,6 +26,7 @@ - #include <linux/platform_device.h> - #include <linux/pm_runtime.h> - #include <linux/regulator/consumer.h> -+#include <linux/pinctrl/consumer.h> - #include <linux/regmap.h> - - #define DRV_NAME "flexcan" -@@ -1971,9 +1972,7 @@ static int __maybe_unused flexcan_suspen - if (err) - return err; - } else { -- err = flexcan_chip_disable(priv); -- if (err) -- return err; -+ flexcan_chip_stop(dev); - } - netif_stop_queue(dev); - netif_device_detach(dev); -@@ -1999,7 +1998,9 @@ static int __maybe_unused flexcan_resume - if (err) - return err; - } else { -- err = flexcan_chip_enable(priv); -+ err = flexcan_chip_start(dev); -+ if (err) -+ return err; - } - } - |