xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mfd: cros_ec: Prevent data transfer while device is suspended

Browse Source 
The cros_ec driver is still active while the device is suspended.
Besides that, it also tries to transfer data even after the I2C host had
been suspended. This patch uses a simple flag to prevent this.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Thierry Escande <thierry.escande@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Joseph Lo
2016-12-16 18:57:36 +01:00
committed by Lee Jones
parent 0f1747692c
commit a9eb186e13
3 changed files with 9 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/mfd/cros_ec.h
View File

@@ -103,6 +103,7 @@ struct cros_ec_command {
* @din_size: size of din buffer to allocate (zero to use static din)
* @dout_size: size of dout buffer to allocate (zero to use static dout)
* @wake_enabled: true if this device can wake the system from sleep
* @suspended: true if this device had been suspended
* @cmd_xfer: send command to EC and get response
* Returns the number of bytes received if the communication succeeded, but
* that doesn't mean the EC was happy with the command. The caller
@@ -136,6 +137,7 @@ struct cros_ec_device {
int din_size;
int dout_size;
bool wake_enabled;
bool suspended;
int (*cmd_xfer)(struct cros_ec_device *ec,
struct cros_ec_command *msg);
int (*pkt_xfer)(struct cros_ec_device *ec,