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path: root/drivers/misc/cros_ec_lpc.c
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Diffstat (limited to 'drivers/misc/cros_ec_lpc.c')
-rw-r--r--drivers/misc/cros_ec_lpc.c38
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/misc/cros_ec_lpc.c b/drivers/misc/cros_ec_lpc.c
index 07624a136f..b94501e474 100644
--- a/drivers/misc/cros_ec_lpc.c
+++ b/drivers/misc/cros_ec_lpc.c
@@ -14,6 +14,7 @@
*/
#include <common.h>
+#include <dm.h>
#include <command.h>
#include <cros_ec.h>
#include <asm/io.h>
@@ -40,10 +41,18 @@ static int wait_for_sync(struct cros_ec_dev *dev)
return 0;
}
+#ifdef CONFIG_DM_CROS_EC
+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)
+{
+ struct cros_ec_dev *dev = dev_get_uclass_priv(udev);
+#else
int cros_ec_lpc_command(struct cros_ec_dev *dev, uint8_t cmd, int cmd_version,
const uint8_t *dout, int dout_len,
uint8_t **dinp, int din_len)
{
+#endif
const int cmd_addr = EC_LPC_ADDR_HOST_CMD;
const int data_addr = EC_LPC_ADDR_HOST_DATA;
const int args_addr = EC_LPC_ADDR_HOST_ARGS;
@@ -178,7 +187,11 @@ int cros_ec_lpc_init(struct cros_ec_dev *dev, const void *blob)
* seeing whether the EC sets the EC_HOST_ARGS_FLAG_FROM_HOST flag
* in args when it responds.
*/
+#ifdef CONFIG_DM_CROS_EC
+static int cros_ec_lpc_check_version(struct udevice *dev)
+#else
int cros_ec_lpc_check_version(struct cros_ec_dev *dev)
+#endif
{
if (inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID) == 'E' &&
inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID + 1)
@@ -192,3 +205,28 @@ int cros_ec_lpc_check_version(struct cros_ec_dev *dev)
printf("%s: ERROR: old EC interface not supported\n", __func__);
return -1;
}
+
+#ifdef CONFIG_DM_CROS_EC
+static int cros_ec_probe(struct udevice *dev)
+{
+ return cros_ec_register(dev);
+}
+
+static struct dm_cros_ec_ops cros_ec_ops = {
+ .command = cros_ec_lpc_command,
+ .check_version = cros_ec_lpc_check_version,
+};
+
+static const struct udevice_id cros_ec_ids[] = {
+ { .compatible = "google,cros-ec" },
+ { }
+};
+
+U_BOOT_DRIVER(cros_ec_lpc) = {
+ .name = "cros_ec",
+ .id = UCLASS_CROS_EC,
+ .of_match = cros_ec_ids,
+ .probe = cros_ec_probe,
+ .ops = &cros_ec_ops,
+};
+#endif