Faiz
On 2/17/20 8:28 AM, Faiz Abbas wrote:
CAN transceivers on some boards have a standby line which can be
toggled to enable/disable the transceiver. Model this as an optional
fixed xceiver regulator.
Signed-off-by: Faiz Abbas <faiz_abbas@xxxxxx>
Acked-by: Sriram Dash <sriram.dash@xxxxxxxxxxx>
---
drivers/net/can/m_can/m_can_platform.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/can/m_can/m_can_platform.c b/drivers/net/can/m_can/m_can_platform.c
index 38ea5e600fb8..719468fab507 100644
--- a/drivers/net/can/m_can/m_can_platform.c
+++ b/drivers/net/can/m_can/m_can_platform.c
@@ -6,6 +6,7 @@
// Copyright (C) 2018-19 Texas Instruments Incorporated - http://www.ti.com/
#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
#include "m_can.h"
@@ -57,6 +58,7 @@ static int m_can_plat_probe(struct platform_device *pdev)
{
struct m_can_classdev *mcan_class;
struct m_can_plat_priv *priv;
+ struct regulator *reg_xceiver;
struct resource *res;
void __iomem *addr;
void __iomem *mram_addr;
@@ -111,6 +113,10 @@ static int m_can_plat_probe(struct platform_device *pdev)
m_can_init_ram(mcan_class);
+ reg_xceiver = devm_regulator_get_optional(&pdev->dev, "xceiver");
+ if (PTR_ERR(reg_xceiver) == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
Where is this regulator enabled?
Shouldn't the regulator be managed by runtime PM as well?
Dan
