linux-kernel - [PATCH 1/3] backlight: lp855x: Move device_config setting out of lp855x

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Message-Id: <20211101185518.306728-1-hdegoede@redhat.com>
Date:   Mon,  1 Nov 2021 19:55:15 +0100
From:   Hans de Goede <hdegoede@...hat.com>
To:     Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>
Cc:     Hans de Goede <hdegoede@...hat.com>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/3] backlight: lp855x: Move device_config setting out of lp855x_configure()

Move the setting of the lp->cfg pointer to the chip specific
lp855x_device_config struct from lp855x_configure() to
lp855x_probe(), before calling lp855x_parse_dt().

This is a preperation patch for adding ACPI enumeration support.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
---
 drivers/video/backlight/lp855x_bl.c | 32 ++++++++++++++---------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index e94932c69f54..808ff00b2003 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -170,22 +170,6 @@ static int lp855x_configure(struct lp855x *lp)
 	int i, ret;
 	struct lp855x_platform_data *pd = lp->pdata;
 
-	switch (lp->chip_id) {
-	case LP8550:
-	case LP8551:
-	case LP8552:
-	case LP8553:
-	case LP8556:
-		lp->cfg = &lp855x_dev_cfg;
-		break;
-	case LP8555:
-	case LP8557:
-		lp->cfg = &lp8557_dev_cfg;
-		break;
-	default:
-		return -EINVAL;
-	}
-
 	if (lp->cfg->pre_init_device) {
 		ret = lp->cfg->pre_init_device(lp);
 		if (ret) {
@@ -413,6 +397,22 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	lp->chip_id = id->driver_data;
 	lp->pdata = dev_get_platdata(&cl->dev);
 
+	switch (lp->chip_id) {
+	case LP8550:
+	case LP8551:
+	case LP8552:
+	case LP8553:
+	case LP8556:
+		lp->cfg = &lp855x_dev_cfg;
+		break;
+	case LP8555:
+	case LP8557:
+		lp->cfg = &lp8557_dev_cfg;
+		break;
+	default:
+		return -EINVAL;
+	}
+
 	if (!lp->pdata) {
 		ret = lp855x_parse_dt(lp);
 		if (ret < 0)
-- 
2.31.1