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authorTodd Broch <tbroch@chromium.org>2015-05-20 11:31:28 +0200
committerLee Jones <lee.jones@linaro.org>2015-06-15 13:18:18 +0100
commitbb03ffb96c72418d06e75c7b74ea62e04c78d322 (patch)
treee53ca2d2788e5455d7df52c78626f615ec842c11 /drivers/mfd/cros_ec.c
parente7b707f96820161820a864d2ee81740a14da6b93 (diff)
mfd: cros_ec: Instantiate sub-devices from device tree
If the EC device tree node has sub-nodes, try to instantiate them as MFD sub-devices. We can configure the EC features provided by the board. Signed-off-by: Todd Broch <tbroch@chromium.org> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Tested-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/cros_ec.c')
-rw-r--r--drivers/mfd/cros_ec.c22
1 files changed, 11 insertions, 11 deletions
diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c
index c4aecc6f8373..1574a9352a6d 100644
--- a/drivers/mfd/cros_ec.c
+++ b/drivers/mfd/cros_ec.c
@@ -17,6 +17,7 @@
* battery charging and regulator control, firmware update.
*/
+#include <linux/of_platform.h>
#include <linux/interrupt.h>
#include <linux/slab.h>
#include <linux/module.h>
@@ -109,18 +110,8 @@ EXPORT_SYMBOL(cros_ec_cmd_xfer);
static const struct mfd_cell cros_devs[] = {
{
- .name = "cros-ec-keyb",
- .id = 1,
- .of_compatible = "google,cros-ec-keyb",
- },
- {
- .name = "cros-ec-i2c-tunnel",
- .id = 2,
- .of_compatible = "google,cros-ec-i2c-tunnel",
- },
- {
.name = "cros-ec-ctl",
- .id = 3,
+ .id = PLATFORM_DEVID_AUTO,
},
};
@@ -150,6 +141,15 @@ int cros_ec_register(struct cros_ec_device *ec_dev)
return err;
}
+ if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
+ err = of_platform_populate(dev->of_node, NULL, NULL, dev);
+ if (err) {
+ mfd_remove_devices(dev);
+ dev_err(dev, "Failed to register sub-devices\n");
+ return err;
+ }
+ }
+
dev_info(dev, "Chrome EC device registered\n");
return 0;