Openwrt/target/linux/layerscape/patches-5.4/808-i2c-0015-LF-263-2-i2c-imx-increase-PM-timeout-to-avoid-operat.patch
Yangbo Lu cddd459140 layerscape: add patches-5.4
Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
2020-05-07 12:53:06 +02:00

28 lines
844 B
Diff

From 929ddb0a7cbc09132512ede0afc935d040e84edf Mon Sep 17 00:00:00 2001
From: Clark Wang <xiaoning.wang@nxp.com>
Date: Fri, 29 Nov 2019 17:39:58 +0800
Subject: [PATCH] LF-263-2 i2c: imx: increase PM timeout to avoid operate clk
frequently
Switching the clock frequently will affect the data transmission
efficiency, and prolong the timeout to reduce autosuspend times for
i2c-imx.
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
---
drivers/i2c/busses/i2c-imx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -114,7 +114,7 @@
#define I2CR_IEN_OPCODE_0 0x0
#define I2CR_IEN_OPCODE_1 I2CR_IEN
-#define I2C_PM_TIMEOUT 10 /* ms */
+#define I2C_PM_TIMEOUT 1000 /* ms */
enum pinmux_endian_type {
BIG_ENDIAN,