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authorJoseph Lo <josephl@nvidia.com>2016-12-16 18:57:36 +0100
committerLee Jones <lee.jones@linaro.org>2017-02-13 09:29:42 +0000
commita9eb186e13144782232cc6fa731441be54baf505 (patch)
tree84516b09ee9f92af21eec842db5cd9efb85df9dc /include/linux/mfd
parent0f1747692ccc06fff9a5eb975b2a5cf92cec4030 (diff)
mfd: cros_ec: Prevent data transfer while device is suspended
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>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/cros_ec.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h
index f62043a75f43..7a01c94496f1 100644
--- a/include/linux/mfd/cros_ec.h
+++ b/include/linux/mfd/cros_ec.h
@@ -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,