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62b7f5931c
bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry-picked from commit f07e572f64)
75 lines
2.3 KiB
Diff
75 lines
2.3 KiB
Diff
From 8b4d7321625cc8403a9ce7f050bd8d1b4ef7446d Mon Sep 17 00:00:00 2001
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From: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
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Date: Tue, 26 Nov 2019 08:17:32 +0100
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Subject: [PATCH] Bluetooth: hci_bcm: Support pcm params in dts
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commit eb762b94111b646b4f116ebfdbfcadbad14e12b3 upstream.
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BCM chips may require configuration of PCM to operate correctly and
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there is a vendor specific HCI command to do this. Add support in the
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hci_bcm driver to parse this from devicetree and configure the chip.
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Signed-off-by: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
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Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
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---
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drivers/bluetooth/hci_bcm.c | 19 +++++++++++++++++++
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1 file changed, 19 insertions(+)
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--- a/drivers/bluetooth/hci_bcm.c
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+++ b/drivers/bluetooth/hci_bcm.c
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@@ -123,6 +123,7 @@ struct bcm_device {
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bool is_suspended;
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#endif
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bool no_early_set_baudrate;
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+ u8 pcm_int_params[5];
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};
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/* generic bcm uart resources */
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@@ -597,6 +598,16 @@ static int bcm_setup(struct hci_uart *hu
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host_set_baudrate(hu, speed);
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}
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+ /* PCM parameters if provided */
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+ if (bcm->dev && bcm->dev->pcm_int_params[0] != 0xff) {
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+ struct bcm_set_pcm_int_params params;
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+
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+ btbcm_read_pcm_int_params(hu->hdev, ¶ms);
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+
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+ memcpy(¶ms, bcm->dev->pcm_int_params, 5);
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+ btbcm_write_pcm_int_params(hu->hdev, ¶ms);
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+ }
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+
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finalize:
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release_firmware(fw);
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@@ -1134,6 +1145,8 @@ static int bcm_acpi_probe(struct bcm_dev
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static int bcm_of_probe(struct bcm_device *bdev)
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{
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device_property_read_u32(bdev->dev, "max-speed", &bdev->oper_speed);
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+ device_property_read_u8_array(bdev->dev, "brcm,bt-pcm-int-params",
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+ bdev->pcm_int_params, 5);
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return 0;
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}
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@@ -1149,6 +1162,9 @@ static int bcm_probe(struct platform_dev
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dev->dev = &pdev->dev;
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dev->irq = platform_get_irq(pdev, 0);
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+ /* Initialize routing field to an unused value */
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+ dev->pcm_int_params[0] = 0xff;
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+
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if (has_acpi_companion(&pdev->dev)) {
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ret = bcm_acpi_probe(dev);
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if (ret)
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@@ -1409,6 +1425,9 @@ static int bcm_serdev_probe(struct serde
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bcmdev->serdev_hu.serdev = serdev;
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serdev_device_set_drvdata(serdev, bcmdev);
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+ /* Initialize routing field to an unused value */
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+ bcmdev->pcm_int_params[0] = 0xff;
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+
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if (has_acpi_companion(&serdev->dev))
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err = bcm_acpi_probe(bcmdev);
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else
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