imx: mx6ul_14x14_evk: configure for 24bpp display

[oweals/u-boot.git] / drivers / misc / cros_ec_lpc.c

diff --git a/drivers/misc/cros_ec_lpc.c b/drivers/misc/cros_ec_lpc.c
index 78378410f444de585490bc271428e806ef17205f..71d03bfba2be0f831658866d68095d02a86101de 100644 (file)
--- a/drivers/misc/cros_ec_lpc.c
+++ b/drivers/misc/cros_ec_lpc.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Chromium OS cros_ec driver - LPC interface
  *
  * Copyright (c) 2012 The Chromium OS Authors.
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
@@ -41,6 +40,38 @@ static int wait_for_sync(struct cros_ec_dev *dev)
        return 0;
 }
 
+int cros_ec_lpc_packet(struct udevice *udev, int out_bytes, int in_bytes)
+{
+       struct cros_ec_dev *dev = dev_get_uclass_priv(udev);
+       uint8_t *d;
+       int i;
+
+       if (out_bytes > EC_LPC_HOST_PACKET_SIZE)
+               return log_msg_ret("Cannot send that many bytes\n", -E2BIG);
+
+       if (in_bytes > EC_LPC_HOST_PACKET_SIZE)
+               return log_msg_ret("Cannot receive that many bytes\n", -E2BIG);
+
+       if (wait_for_sync(dev))
+               return log_msg_ret("Timeout waiting ready\n", -ETIMEDOUT);
+
+       /* Write data */
+       for (i = 0, d = (uint8_t *)dev->dout; i < out_bytes; i++, d++)
+               outb(*d, EC_LPC_ADDR_HOST_PACKET + i);
+
+       /* Start the command */
+       outb(EC_COMMAND_PROTOCOL_3, EC_LPC_ADDR_HOST_CMD);
+
+       if (wait_for_sync(dev))
+               return log_msg_ret("Timeout waiting ready\n", -ETIMEDOUT);
+
+       /* Read back args */
+       for (i = 0, d = dev->din; i < in_bytes; i++, d++)
+               *d = inb(EC_LPC_ADDR_HOST_PACKET + i);
+
+       return in_bytes;
+}
+
 int cros_ec_lpc_command(struct udevice *udev, uint8_t cmd, int cmd_version,
                     const uint8_t *dout, int dout_len,
                     uint8_t **dinp, int din_len)
@@ -201,6 +232,7 @@ static int cros_ec_probe(struct udevice *dev)
 }
 
 static struct dm_cros_ec_ops cros_ec_ops = {
+       .packet = cros_ec_lpc_packet,
        .command = cros_ec_lpc_command,
        .check_version = cros_ec_lpc_check_version,
 };