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Commit 476d924d authored by Ramprasad Katkam's avatar Ramprasad Katkam
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asoc: bolero: get slew rate value from device tree 



trinket has a different slew rate value than talos/moorea.
Hence the slew rate value is read from device tree instead of
using fixed value.

Change-Id: I45955ff91a210e6fe93c70d801673480b7ca978e
Signed-off-by: default avatarRamprasad Katkam <katkam@codeaurora.org>
parent a4e5b433

asoc/codecs/bolero/bolero-cdc.c

+13 −5
Original line number Diff line number Diff line
@@ -854,6 +854,7 @@ static int bolero_probe(struct platform_device *pdev) 
	u32 num_macros = 0;

	int ret;

	u32 slew_reg1 = 0, slew_reg2 = 0;

	u32 slew_val1 = 0, slew_val2 = 0;

	char __iomem *slew_io_base1 = NULL, *slew_io_base2 = NULL;



	priv = devm_kzalloc(&pdev->dev, sizeof(struct bolero_priv),
@@ -902,9 +903,9 @@ static int bolero_probe(struct platform_device *pdev) 


	ret = of_property_read_u32(pdev->dev.of_node, "slew_rate_reg1",

				   &slew_reg1);

	ret |= of_property_read_u32(pdev->dev.of_node, "slew_rate_reg2",

				   &slew_reg2);



	ret |= of_property_read_u32(pdev->dev.of_node, "slew_rate_val1",

				   &slew_val1);

	if (!ret) {

		slew_io_base1 = devm_ioremap(&pdev->dev, slew_reg1, 0x4);

		if (!slew_io_base1) {
@@ -912,17 +913,24 @@ static int bolero_probe(struct platform_device *pdev) 
				__func__);

			return -ENOMEM;

		}

		/* update slew rate for tx/rx swr interface */

		iowrite32(slew_val1, slew_io_base1);

	}

	ret = of_property_read_u32(pdev->dev.of_node, "slew_rate_reg2",

				   &slew_reg2);



	ret |= of_property_read_u32(pdev->dev.of_node, "slew_rate_val2",

				   &slew_val2);



	if (!ret) {

		slew_io_base2 = devm_ioremap(&pdev->dev, slew_reg2, 0x4);

		if (!slew_io_base2) {

			dev_err(&pdev->dev, "%s: ioremap failed for slew reg 2\n",

				__func__);

			return -ENOMEM;

		}



		/* update slew rate for tx/rx swr interface */

		iowrite32(0x3333, slew_io_base1);

		iowrite32(0xF, slew_io_base2);

		iowrite32(slew_val2, slew_io_base2);

	}

	INIT_WORK(&priv->bolero_add_child_devices_work,

		  bolero_add_child_devices);