[PATCH v3 6/9] can: m_can: Add use of optional regulator

Markus Schneider-Pargmann
2024-10-11T13:18:07Z

Add support to use a regulator for the core. This is optional and used
to register the dependency on the regulator.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
---
drivers/net/can/m_can/m_can.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c
index c56d61b0d20b05be36c95ec4a6651b0457883b66..b009575354cf5f19e93950bb17d448f81609aae4 100644
--- a/drivers/net/can/m_can/m_can.c
+++ b/drivers/net/can/m_can/m_can.c
@@ -23,6 +23,7 @@
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>

#include "m_can.h"

@@ -2383,6 +2384,11 @@ struct m_can_classdev *m_can_class_allocate_dev(struct device *dev,
if (dev->of_node && of_property_read_bool(dev->of_node, "wakeup-source"))
device_set_wakeup_capable(dev, true);

+ ret = devm_regulator_get_enable_optional(dev, "vio");
+ if (ret)
+ return ERR_PTR(
+ dev_err_probe(dev, ret, "Failed to get or enable optional regulator\n"));
+
/* Get TX FIFO size
* Defines the total amount of echo buffers for loopback
*/

--
2.45.2