[PATCH 4/4] spi: Remove support for dangling device properties

From: Heikki Krogerus
Date: Wed Mar 03 2021 - 13:25:04 EST


>From now on only accepting complete software nodes.

Signed-off-by: Heikki Krogerus <heikki.krogerus@xxxxxxxxxxxxxxx>
---
drivers/spi/spi.c | 24 +++---------------------
include/linux/spi/spi.h | 4 ----
2 files changed, 3 insertions(+), 25 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9b46998ae2a44..016bbfbce90b7 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -676,34 +676,23 @@ struct spi_device *spi_new_device(struct spi_controller *ctlr,
proxy->controller_data = chip->controller_data;
proxy->controller_state = NULL;

- if (chip->properties) {
- status = device_add_properties(&proxy->dev, chip->properties);
- if (status) {
- dev_err(&ctlr->dev,
- "failed to add properties to '%s': %d\n",
- chip->modalias, status);
- goto err_dev_put;
- }
- }
-
if (chip->swnode) {
status = device_add_software_node(&proxy->dev, chip->swnode);
if (status) {
dev_err(&ctlr->dev, "failed to add softwade node to '%s': %d\n",
chip->modalias, status);
- goto err_remove_props;
+ goto err_dev_put;
}
}

status = spi_add_device(proxy);
if (status < 0)
- goto err_remove_props;
+ goto err_dev_put;

return proxy;

-err_remove_props:
- device_remove_software_node(&proxy->dev);
err_dev_put:
+ device_remove_software_node(&proxy->dev);
spi_dev_put(proxy);
return NULL;
}
@@ -764,7 +753,6 @@ static void spi_match_controller_to_boardinfo(struct spi_controller *ctlr,
*
* The board info passed can safely be __initdata ... but be careful of
* any embedded pointers (platform_data, etc), they're copied as-is.
- * Device properties are deep-copied though.
*
* Return: zero on success, else a negative error code.
*/
@@ -784,12 +772,6 @@ int spi_register_board_info(struct spi_board_info const *info, unsigned n)
struct spi_controller *ctlr;

memcpy(&bi->board_info, info, sizeof(*info));
- if (info->properties) {
- bi->board_info.properties =
- property_entries_dup(info->properties);
- if (IS_ERR(bi->board_info.properties))
- return PTR_ERR(bi->board_info.properties);
- }

mutex_lock(&board_lock);
list_add_tail(&bi->list, &board_list);
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index f47f94ea6fa99..7cb3194d5ba59 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -19,7 +19,6 @@
#include <uapi/linux/spi/spi.h>

struct dma_chan;
-struct property_entry;
struct software_node;
struct spi_controller;
struct spi_transfer;
@@ -1410,7 +1409,6 @@ static inline ssize_t spi_w8r16be(struct spi_device *spi, u8 cmd)
* @modalias: Initializes spi_device.modalias; identifies the driver.
* @platform_data: Initializes spi_device.platform_data; the particular
* data stored there is driver-specific.
- * @properties: Deprecated - use software node instead.
* @swnode: Software node for the device.
* @controller_data: Initializes spi_device.controller_data; some
* controllers need hints about hardware setup, e.g. for DMA.
@@ -1444,12 +1442,10 @@ struct spi_board_info {
*
* platform_data goes to spi_device.dev.platform_data,
* controller_data goes to spi_device.controller_data,
- * device properties are copied and attached to spi_device,
* irq is copied too
*/
char modalias[SPI_NAME_SIZE];
const void *platform_data;
- const struct property_entry *properties;
const struct software_node *swnode;
void *controller_data;
int irq;
--
2.30.1