Re: [PATCH] ASoC: qcom: soundwire: Enable soundwire bus clock for version 1.6
From: Srinivasa Rao Mandadapu
Date: Tue Oct 05 2021 - 10:14:22 EST
On 10/1/2021 11:27 PM, Pierre-Louis Bossart wrote:
Thanks for Your time Bossart!!!
@@ -610,6 +611,12 @@ static int qcom_swrm_init(struct qcom_swrm_ctrl *ctrl)
val = FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_ROW_CTRL_BMSK, ctrl->rows_index);
val |= FIELD_PREP(SWRM_MCP_FRAME_CTRL_BANK_COL_CTRL_BMSK, ctrl->cols_index);
+ if (ctrl->swrm_hctl_reg) {
+ val = ioread32(ctrl->swrm_hctl_reg);
+ val &= 0xFFFFFFFD;
magic value, use a #define MASK_SOMETHING?
Okay. will update it.
+ iowrite32(val, ctrl->swrm_hctl_reg);
+ }
+
ctrl->reg_write(ctrl, SWRM_MCP_FRAME_CTRL_BANK_ADDR(0), val);
/* Enable Auto enumeration */
@@ -1200,7 +1207,7 @@ static int qcom_swrm_probe(struct platform_device *pdev)
struct qcom_swrm_ctrl *ctrl;
const struct qcom_swrm_data *data;
int ret;
- u32 val;
+ int val, swrm_hctl_reg = 0;
ctrl = devm_kzalloc(dev, sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
@@ -1251,6 +1258,9 @@ static int qcom_swrm_probe(struct platform_device *pdev)
ctrl->bus.port_ops = &qcom_swrm_port_ops;
ctrl->bus.compute_params = &qcom_swrm_compute_params;
+ if (!of_property_read_u32(dev->of_node, "qcom,swrm-hctl-reg", &swrm_hctl_reg))
+ ctrl->swrm_hctl_reg = devm_ioremap(&pdev->dev, swrm_hctl_reg, 0x4);
if (!ctrl->swrm_hctl_reg)
return -ENODEV;
?
I think here error check is not required, as this change is required
only for soundwire version 1.6 and above.
+
ret = qcom_swrm_get_port_config(ctrl);
if (ret)
goto err_clk;
--
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