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These patches are to support the pca955x led with OpenWRT correctly via device tree on linux 5.10. Without these, the new LED function/color/reg features can not be used. Signed-off-by: Chris Blake <chrisrblake93@gmail.com>
65 lines
2.0 KiB
Diff
65 lines
2.0 KiB
Diff
From 239f32b4f161c1584cd4b386d6ab8766432a6ede Mon Sep 17 00:00:00 2001
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From: Eddie James <eajames@linux.ibm.com>
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Date: Fri, 16 Jul 2021 17:03:31 -0500
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Subject: [PATCH] leds: pca955x: Switch to i2c probe_new
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The deprecated i2c probe functionality doesn't work with OF
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compatible strings, as it only checks for the i2c device id. Switch
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to the new way of probing and grab the match data to select the
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chip type.
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Signed-off-by: Eddie James <eajames@linux.ibm.com>
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Signed-off-by: Pavel Machek <pavel@ucw.cz>
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---
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drivers/leds/leds-pca955x.c | 23 +++++++++++++++++++----
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1 file changed, 19 insertions(+), 4 deletions(-)
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diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c
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index a6aa4b9abde8c4..a6b5699aeae4fe 100644
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--- a/drivers/leds/leds-pca955x.c
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+++ b/drivers/leds/leds-pca955x.c
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@@ -479,8 +479,7 @@ static const struct of_device_id of_pca955x_match[] = {
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};
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MODULE_DEVICE_TABLE(of, of_pca955x_match);
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-static int pca955x_probe(struct i2c_client *client,
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- const struct i2c_device_id *id)
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+static int pca955x_probe(struct i2c_client *client)
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{
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struct pca955x *pca955x;
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struct pca955x_led *pca955x_led;
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@@ -494,8 +493,24 @@ static int pca955x_probe(struct i2c_client *client,
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bool set_default_label = false;
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bool keep_pwm = false;
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char default_label[8];
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+ enum pca955x_type chip_type;
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+ const void *md = device_get_match_data(&client->dev);
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- chip = &pca955x_chipdefs[id->driver_data];
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+ if (md) {
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+ chip_type = (enum pca955x_type)md;
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+ } else {
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+ const struct i2c_device_id *id = i2c_match_id(pca955x_id,
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+ client);
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+
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+ if (id) {
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+ chip_type = (enum pca955x_type)id->driver_data;
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+ } else {
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+ dev_err(&client->dev, "unknown chip\n");
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+ return -ENODEV;
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+ }
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+ }
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+
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+ chip = &pca955x_chipdefs[chip_type];
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adapter = client->adapter;
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pdata = dev_get_platdata(&client->dev);
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if (!pdata) {
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@@ -670,7 +685,7 @@ static struct i2c_driver pca955x_driver = {
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.name = "leds-pca955x",
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.of_match_table = of_pca955x_match,
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},
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- .probe = pca955x_probe,
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+ .probe_new = pca955x_probe,
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.id_table = pca955x_id,
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};
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