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Subject[PATCH v1 2/3] auxdisplay: ht16k33: Make use of device_get_match_data()
Date
Switching to use device_get_match_data() helps getting of
i2c_of_match_device() API.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/auxdisplay/ht16k33.c | 15 ++++++++++-----
1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c
index 02425991c159..8e2fd2291ea4 100644
--- a/drivers/auxdisplay/ht16k33.c
+++ b/drivers/auxdisplay/ht16k33.c
@@ -60,7 +60,8 @@
#define HT16K33_FB_SIZE (HT16K33_MATRIX_LED_MAX_COLS * BYTES_PER_ROW)

enum display_type {
- DISP_MATRIX = 0,
+ DISP_UNKNOWN = 0,
+ DISP_MATRIX,
DISP_QUAD_7SEG,
DISP_QUAD_14SEG,
};
@@ -675,6 +676,7 @@ static int ht16k33_seg_probe(struct device *dev, struct ht16k33_priv *priv,
return err;

switch (priv->type) {
+ default:
case DISP_MATRIX:
/* not handled here */
err = -EINVAL;
@@ -713,7 +715,6 @@ static int ht16k33_seg_probe(struct device *dev, struct ht16k33_priv *priv,
static int ht16k33_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
- const struct of_device_id *id;
struct ht16k33_priv *priv;
uint32_t dft_brightness;
int err;
@@ -728,9 +729,8 @@ static int ht16k33_probe(struct i2c_client *client)
return -ENOMEM;

priv->client = client;
- id = i2c_of_match_device(dev->driver->of_match_table, client);
- if (id)
- priv->type = (uintptr_t)id->data;
+ priv->type = (uintptr_t)device_get_match_data(dev);
+
i2c_set_clientdata(client, priv);

err = ht16k33_initialize(priv);
@@ -771,6 +771,9 @@ static int ht16k33_probe(struct i2c_client *client)
/* Segment Display */
err = ht16k33_seg_probe(dev, priv, dft_brightness);
break;
+ default:
+ /* Unknown display; enumerated via user space? */
+ err = 0;
}
return err;
}
@@ -795,6 +798,8 @@ static void ht16k33_remove(struct i2c_client *client)
device_remove_file(&client->dev, &dev_attr_map_seg7);
device_remove_file(&client->dev, &dev_attr_map_seg14);
break;
+ default:
+ break;
}
}

--
2.39.1
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