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Message-Id: <20231006100320.2908210-1-m.szyprowski@samsung.com>
Date: Fri, 6 Oct 2023 12:03:20 +0200
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: linux-input@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Marek Szyprowski <m.szyprowski@...sung.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH v2] Input: max77693-haptic - add device-tree compatible
strings
Add the needed device-tree compatible strings to the MAX77693 haptic
driver, so it can be automatically loaded when compiled as a kernel
module and given device-tree contains separate (i.e. 'motor-driver') node
under the main PMIC node. When device is instantiated from device-tree,
the driver data cannot be read via platform_get_device_id(), so get
device type from the parent MFD device instead, what works for both
cases.
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
drivers/input/misc/max77693-haptic.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c
index 80f4416ffe2f..0e646f1b257b 100644
--- a/drivers/input/misc/max77693-haptic.c
+++ b/drivers/input/misc/max77693-haptic.c
@@ -307,7 +307,7 @@ static int max77693_haptic_probe(struct platform_device *pdev)
haptic->suspend_state = false;
/* Variant-specific init */
- haptic->dev_type = platform_get_device_id(pdev)->driver_data;
+ haptic->dev_type = max77693->type;
switch (haptic->dev_type) {
case TYPE_MAX77693:
haptic->regmap_haptic = max77693->regmap_haptic;
@@ -406,16 +406,24 @@ static DEFINE_SIMPLE_DEV_PM_OPS(max77693_haptic_pm_ops,
max77693_haptic_resume);
static const struct platform_device_id max77693_haptic_id[] = {
- { "max77693-haptic", TYPE_MAX77693 },
- { "max77843-haptic", TYPE_MAX77843 },
+ { "max77693-haptic", },
+ { "max77843-haptic", },
{},
};
MODULE_DEVICE_TABLE(platform, max77693_haptic_id);
+static const struct of_device_id of_max77693_haptic_dt_match[] = {
+ { .compatible = "maxim,max77693-haptic", },
+ { .compatible = "maxim,max77843-haptic", },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, of_max77693_haptic_dt_match);
+
static struct platform_driver max77693_haptic_driver = {
.driver = {
.name = "max77693-haptic",
.pm = pm_sleep_ptr(&max77693_haptic_pm_ops),
+ .of_match_table = of_max77693_haptic_dt_match,
},
.probe = max77693_haptic_probe,
.id_table = max77693_haptic_id,
--
2.34.1
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