Re: [PATCH v2 3/4] soundwire: qcom: add support for mmio soundwire master devices

From: Jonathan Marek
Date: Tue Sep 08 2020 - 15:07:23 EST




On 9/8/20 9:56 AM, Pierre-Louis Bossart wrote:



@@ -764,8 +786,11 @@ static int qcom_swrm_probe(struct platform_device *pdev)
          if (!ctrl->regmap)
              return -EINVAL;
      } else {
-        /* Only WCD based SoundWire controller is supported */
-        return -ENOTSUPP;
+        ctrl->reg_read = qcom_swrm_cpu_reg_read;
+        ctrl->reg_write = qcom_swrm_cpu_reg_write;
+        ctrl->mmio = devm_platform_ioremap_resource(pdev, 0);
+        if (IS_ERR(ctrl->mmio))
+            return PTR_ERR(ctrl->mmio);

Shouldn't this be conditional on SLIMBUS being enabled, as done in your patch2?


No, the case above is the SLIMBUS case. This patch is adding support for the non-SLIMBUS case.

      }
      ctrl->irq = of_irq_get(dev->of_node, 0);