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Subject[PATCH RFC 5/6] Switch SPI driver calls its own driver switch register function
Date
From: Tristram Ha <Tristram.Ha@microchip.com>

SPI driver calls own specific switch register function.
Shutdown callback function is added to reset switch to default state.

Signed-off-by: Tristram Ha <Tristram.Ha@microchip.com>
---
diff --git a/drivers/net/dsa/microchip/ksz_spi.c b/drivers/net/dsa/microchip/ksz_spi.c
index c519469..d03eb83 100644
--- a/drivers/net/dsa/microchip/ksz_spi.c
+++ b/drivers/net/dsa/microchip/ksz_spi.c
@@ -25,6 +25,8 @@

#include "ksz_priv.h"

+int ksz9477_switch_register(struct ksz_device *dev);
+
/* SPI frame opcodes */
#define KS_SPIOP_RD 3
#define KS_SPIOP_WR 2
@@ -174,7 +176,7 @@ static int ksz_spi_probe(struct spi_device *spi)
if (spi->dev.platform_data)
dev->pdata = spi->dev.platform_data;

- ret = ksz_switch_register(dev);
+ ret = ksz9477_switch_register(dev);
if (ret)
return ret;

@@ -193,6 +195,14 @@ static int ksz_spi_remove(struct spi_device *spi)
return 0;
}

+static void ksz_spi_shutdown(struct spi_device *spi) {
+ struct ksz_device *dev = spi_get_drvdata(spi);
+
+ if (dev)
+ dev->dev_ops->reset(dev);
+}
+
static const struct of_device_id ksz_dt_ids[] = {
{ .compatible = "microchip,ksz9477" },
{},
@@ -207,6 +217,7 @@ static int ksz_spi_remove(struct spi_device *spi)
},
.probe = ksz_spi_probe,
.remove = ksz_spi_remove,
+ .shutdown = ksz_spi_shutdown,
};

module_spi_driver(ksz_spi_driver);
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