iio: adc: adi-axi-adc: add struct axi_adc_info

Add struct axi_adc_info to allow different axi-adc compatibles that can
be added to this generic implementation.

Signed-off-by: Angelo Dureghello <adureghello@baylibre.com>
Link: https://patch.msgid.link/20250210-wip-bl-ad7606_add_backend_sw_mode-v4-4-160df18b1da7@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c
index a55db308baabf7b26ea98431cab1e6af7fe2a5f3..04f7d7d3890b8e7da33df400eebff5f1f326b6b7 100644 (file)
--- a/drivers/iio/adc/adi-axi-adc.c
+++ b/drivers/iio/adc/adi-axi-adc.c
@@ -80,7 +80,16 @@
         ADI_AXI_REG_CHAN_CTRL_FMT_EN |         \
         ADI_AXI_REG_CHAN_CTRL_ENABLE)
 
+struct axi_adc_info {
+       unsigned int version;
+       const struct iio_backend_info *backend_info;
+       bool has_child_nodes;
+       const void *pdata;
+       unsigned int pdata_sz;
+};
+
 struct adi_axi_adc_state {
+       const struct axi_adc_info *info;
        struct regmap *regmap;
        struct device *dev;
        /* lock to protect multiple accesses to the device registers */
@@ -348,7 +357,6 @@ static const struct iio_backend_info adi_axi_adc_generic = {
 
 static int adi_axi_adc_probe(struct platform_device *pdev)
 {
-       const unsigned int *expected_ver;
        struct adi_axi_adc_state *st;
        void __iomem *base;
        unsigned int ver;
@@ -370,8 +378,8 @@ static int adi_axi_adc_probe(struct platform_device *pdev)
                return dev_err_probe(&pdev->dev, PTR_ERR(st->regmap),
                                     "failed to init register map\n");
 
-       expected_ver = device_get_match_data(&pdev->dev);
-       if (!expected_ver)
+       st->info = device_get_match_data(&pdev->dev);
+       if (!st->info)
                return -ENODEV;
 
        clk = devm_clk_get_enabled(&pdev->dev, NULL);
@@ -391,12 +399,13 @@ static int adi_axi_adc_probe(struct platform_device *pdev)
        if (ret)
                return ret;
 
-       if (ADI_AXI_PCORE_VER_MAJOR(ver) != ADI_AXI_PCORE_VER_MAJOR(*expected_ver)) {
+       if (ADI_AXI_PCORE_VER_MAJOR(ver) !=
+           ADI_AXI_PCORE_VER_MAJOR(st->info->version)) {
                dev_err(&pdev->dev,
                        "Major version mismatch. Expected %d.%.2d.%c, Reported %d.%.2d.%c\n",
-                       ADI_AXI_PCORE_VER_MAJOR(*expected_ver),
-                       ADI_AXI_PCORE_VER_MINOR(*expected_ver),
-                       ADI_AXI_PCORE_VER_PATCH(*expected_ver),
+                       ADI_AXI_PCORE_VER_MAJOR(st->info->version),
+                       ADI_AXI_PCORE_VER_MINOR(st->info->version),
+                       ADI_AXI_PCORE_VER_PATCH(st->info->version),
                        ADI_AXI_PCORE_VER_MAJOR(ver),
                        ADI_AXI_PCORE_VER_MINOR(ver),
                        ADI_AXI_PCORE_VER_PATCH(ver));
@@ -416,11 +425,14 @@ static int adi_axi_adc_probe(struct platform_device *pdev)
        return 0;
 }
 
-static unsigned int adi_axi_adc_10_0_a_info = ADI_AXI_PCORE_VER(10, 0, 'a');
+static const struct axi_adc_info adc_generic = {
+       .version = ADI_AXI_PCORE_VER(10, 0, 'a'),
+       .backend_info = &adi_axi_adc_generic,
+};
 
 /* Match table for of_platform binding */
 static const struct of_device_id adi_axi_adc_of_match[] = {
-       { .compatible = "adi,axi-adc-10.0.a", .data = &adi_axi_adc_10_0_a_info },
+       { .compatible = "adi,axi-adc-10.0.a", .data = &adc_generic },
        { /* end of list */ }
 };
 MODULE_DEVICE_TABLE(of, adi_axi_adc_of_match);