lkml.org 
[lkml]   [2018]   [May]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v4 4/5] mfd: cros_ec_dev: Add CEC sub-device registration
Date
The EC can expose a CEC bus, thus add the cros-ec-cec MFD sub-device
when the CEC feature bit is present.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
---
drivers/mfd/cros_ec_dev.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 1d6dc5c..272969e 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -383,6 +383,10 @@ static void cros_ec_sensors_register(struct cros_ec_dev *ec)
kfree(msg);
}

+static const struct mfd_cell cros_ec_cec_cells[] = {
+ { .name = "cros-ec-cec" }
+};
+
static const struct mfd_cell cros_ec_rtc_cells[] = {
{ .name = "cros-ec-rtc" }
};
@@ -426,6 +430,18 @@ static int ec_device_probe(struct platform_device *pdev)
if (cros_ec_check_features(ec, EC_FEATURE_MOTION_SENSE))
cros_ec_sensors_register(ec);

+ /* Check whether this EC instance has CEC host command support */
+ if (cros_ec_check_features(ec, EC_FEATURE_CEC)) {
+ retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO,
+ cros_ec_cec_cells,
+ ARRAY_SIZE(cros_ec_cec_cells),
+ NULL, 0, NULL);
+ if (retval)
+ dev_err(ec->dev,
+ "failed to add cros-ec-cec device: %d\n",
+ retval);
+ }
+
/* Check whether this EC instance has RTC host command support */
if (cros_ec_check_features(ec, EC_FEATURE_RTC)) {
retval = mfd_add_devices(ec->dev, PLATFORM_DEVID_AUTO,
--
2.7.4
\
 
 \ /
  Last update: 2018-05-21 16:23    [W:0.060 / U:0.884 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site