> >> diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
> >> index 4083796..dc37b6b 100644
> >> --- a/drivers/input/keyboard/cros_ec_keyb.c
> >> +++ b/drivers/input/keyboard/cros_ec_keyb.c
> >> @@ -191,8 +191,18 @@ static void cros_ec_keyb_close(struct input_dev *dev)
> >>
> >> static int cros_ec_keyb_get_state(struct cros_ec_keyb *ckdev, uint8_t *kb_state)
> >> {
> >> - return ckdev->ec->command_recv(ckdev->ec, EC_CMD_MKBP_STATE,
> >> - kb_state, ckdev->cols);
> >> + int ret;
> >> + struct cros_ec_command msg = {
> >> + .version = 0,
> >> + .command = EC_CMD_MKBP_STATE,
> >> + .outdata = NULL,
> >> + .outsize = 0,
> >> + .indata = kb_state,
> >> + .insize = ckdev->cols,
> >> + };
> >> +
> >> + ret = ckdev->ec->cmd_xfer(ckdev->ec, &msg);
> >
> > Do we need ret?
>
> No. If you wish I will spin without it. Let me know.
>
> Note that locally this code includes a comment between the above and the return:
> /* FIXME: This assumes msg.result == EC_RES_SUCCESS */
>
> Given that this is not a new problem introduced in this code, that it
> still hasn't been fixed locally in the ChromeOS tree, and that
> generally FIXMEs don't seem to be left in the code upstream, I left it
> out.
As you're re-spinning anyway, please fix this and add my:
Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>
> >> diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h
> >> index 2b0c598..60c0880 100644
> >> --- a/include/linux/mfd/cros_ec.h
> >> +++ b/include/linux/mfd/cros_ec.h
> >> @@ -63,9 +63,10 @@ struct cros_ec_command {
> >> * @was_wake_device: true if this device was set to wake the system from
> >> * sleep at the last suspend
> >> * @event_notifier: interrupt event notifier for transport devices
> >> - * @command_send: send a command
> >> - * @command_recv: receive a response
> >> - * @command_sendrecv: send a command and receive a response
> >> + * @cmd_xfer: send command to EC and get response
> >> + * Returns 0 if the communication succeeded, but that doesn't mean the EC
> >> + * was happy with the command it got. Caller should check msg.result for
> >> + * the EC's result code.
> >> *
> >> * @priv: Private data
> >> * @irq: Interrupt to use
> >> @@ -83,7 +84,6 @@ struct cros_ec_command {
> >> * @parent: pointer to parent device (e.g. i2c or spi device)
> >> * @wake_enabled: true if this device can wake the system from sleep
> >> * @lock: one transaction at a time
> >> - * @cmd_xfer: low-level channel to the EC
> >> */
> >> struct cros_ec_device {
> >>
> >> @@ -94,13 +94,8 @@ struct cros_ec_device {
> >> bool was_wake_device;
> >> struct class *cros_class;
> >> struct blocking_notifier_head event_notifier;
> >> - int (*command_send)(struct cros_ec_device *ec,
> >> - uint16_t cmd, void *out_buf, int out_len);
> >> - int (*command_recv)(struct cros_ec_device *ec,
> >> - uint16_t cmd, void *in_buf, int in_len);
> >> - int (*command_sendrecv)(struct cros_ec_device *ec,
> >> - uint16_t cmd, void *out_buf, int out_len,
> >> - void *in_buf, int in_len);
> >> + int (*cmd_xfer)(struct cros_ec_device *ec,
> >> + struct cros_ec_command *msg);
> >>
> >> /* These are used to implement the platform-specific interface */
> >> void *priv;
> >> @@ -112,8 +107,6 @@ struct cros_ec_device {
> >> struct device *parent;
> >> bool wake_enabled;
> >> struct mutex lock;
> >> - int (*cmd_xfer)(struct cros_ec_device *ec,
> >> - struct cros_ec_command *msg);
> >
> > Seems odd - maybe this line move of cmd_xfer() should be in an earlier patch?
>
> It got moved from "private" to public. Bill reorganized all the
> public stuff at the top and the private at the bottom.
>
> -Doug
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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