rtc: pcf85063: Simplify probe()

The pcf85063_ids[].driver_data could store a pointer to the config,
like for DT-based matching, making I2C and DT-based matching
more similar.

After that, we can simplify the probe() by replacing of_device_get_
match_data() and i2c_match_id() by i2c_get_match_data() as we have
similar I2C and DT-based matching table.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230717124059.196244-2-biju.das.jz@bp.renesas.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-pcf85063.c b/drivers/rtc/rtc-pcf85063.c
index e517abf..a3b75c9 100644 (file)
--- a/drivers/rtc/rtc-pcf85063.c
+++ b/drivers/rtc/rtc-pcf85063.c
@@ -556,8 +556,6 @@ static struct pcf85063_config pcf85063_cfg[] = {
        },
 };
 
-static const struct i2c_device_id pcf85063_ids[];
-
 static int pcf85063_probe(struct i2c_client *client)
 {
        struct pcf85063 *pcf85063;
@@ -579,17 +577,9 @@ static int pcf85063_probe(struct i2c_client *client)
        if (!pcf85063)
                return -ENOMEM;
 
-       if (client->dev.of_node) {
-               config = of_device_get_match_data(&client->dev);
-               if (!config)
-                       return -ENODEV;
-       } else {
-               enum pcf85063_type type =
-                       i2c_match_id(pcf85063_ids, client)->driver_data;
-               if (type >= PCF85063_LAST_ID)
-                       return -ENODEV;
-               config = &pcf85063_cfg[type];
-       }
+       config = i2c_get_match_data(client);
+       if (!config)
+               return -ENODEV;
 
        pcf85063->regmap = devm_regmap_init_i2c(client, &config->regmap);
        if (IS_ERR(pcf85063->regmap))
@@ -655,11 +645,11 @@ static int pcf85063_probe(struct i2c_client *client)
 }
 
 static const struct i2c_device_id pcf85063_ids[] = {
-       { "pca85073a", PCF85063A },
-       { "pcf85063", PCF85063 },
-       { "pcf85063tp", PCF85063TP },
-       { "pcf85063a", PCF85063A },
-       { "rv8263", RV8263 },
+       { "pca85073a", .driver_data = (kernel_ulong_t)&pcf85063_cfg[PCF85063A] },
+       { "pcf85063", .driver_data = (kernel_ulong_t)&pcf85063_cfg[PCF85063] },
+       { "pcf85063tp", .driver_data = (kernel_ulong_t)&pcf85063_cfg[PCF85063TP] },
+       { "pcf85063a", .driver_data = (kernel_ulong_t)&pcf85063_cfg[PCF85063A] },
+       { "rv8263", .driver_data = (kernel_ulong_t)&pcf85063_cfg[RV8263] },
        {}
 };
 MODULE_DEVICE_TABLE(i2c, pcf85063_ids);