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@samsung.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231006100320.2908210-1-m.szyprowski@samsung.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/max77693-haptic.c b/drivers/input/misc/max77693-haptic.c
index 80f4416ffe2fe98ecc8032527cda68e1b57b019e..0e646f1b257b8fefd21057c31806d82150b4f4db 100644 (file)
--- 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,