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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
To: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Marcel Holtmann <marcel@holtmann.org>,
	Johan Hedberg <johan.hedberg@gmail.com>,
	Luiz Augusto von Dentz <luiz.dentz@gmail.com>,
	Kalle Valo <kvalo@codeaurora.org>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: linux-arm-msm@vger.kernel.org, linux-mmc@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-bluetooth@vger.kernel.org,
	ath10k@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org
Subject: [RFC PATCH 09/15] Bluetooth: hci_qca: add support for pwrseq
Date: Tue, 17 Aug 2021 03:55:01 +0300	[thread overview]
Message-ID: <20210817005507.1507580-10-dmitry.baryshkov@linaro.org> (raw)
In-Reply-To: <20210817005507.1507580-1-dmitry.baryshkov@linaro.org>

Support using pwrseq for powering up and down the QCA BT chips.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/bluetooth/hci_qca.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c
index 2d23e8a3ca14..a908a952c0ef 100644
--- a/drivers/bluetooth/hci_qca.c
+++ b/drivers/bluetooth/hci_qca.c
@@ -31,6 +31,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/serdev.h>
 #include <linux/mutex.h>
+#include <linux/pwrseq/consumer.h>
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -211,6 +212,7 @@ struct qca_serdev {
 	struct gpio_desc *sw_ctrl;
 	struct clk	 *susclk;
 	enum qca_btsoc_type btsoc_type;
+	struct pwrseq *pwrseq;
 	struct regulator_bulk_data *vreg_bulk;
 	int num_vregs;
 	bool vregs_on;
@@ -1602,7 +1604,10 @@ static int qca_power_on(struct hci_dev *hdev)
 	 */
 	qcadev = serdev_device_get_drvdata(hu->serdev);
 	serdev_device_close(hu->serdev);
-	ret = qca_regulator_enable(qcadev);
+	if (qcadev->pwrseq)
+		ret = pwrseq_full_power_on(qcadev->pwrseq);
+	else
+		ret = qca_regulator_enable(qcadev);
 	if (ret)
 		return ret;
 
@@ -1863,7 +1868,10 @@ static void qca_power_shutdown(struct hci_uart *hu)
 		host_set_baudrate(hu, 2400);
 		qca_send_power_pulse(hu, false);
 	}
-	qca_regulator_disable(qcadev);
+	if (qcadev->pwrseq)
+		pwrseq_power_off(qcadev->pwrseq);
+	else
+		qca_regulator_disable(qcadev);
 
 	set_bit(QCA_BT_OFF, &qca->flags);
 }
@@ -2015,7 +2023,15 @@ static int qca_serdev_probe(struct serdev_device *serdev)
 	else
 		qcadev->btsoc_type = QCA_ROME;
 
-	if (data && data->num_vregs) {
+	qcadev->pwrseq = devm_pwrseq_get_optional(&serdev->dev, "bt");
+	if (IS_ERR(qcadev->pwrseq)) {
+		err = PTR_ERR(qcadev->pwrseq);
+		BT_ERR("Failed to init regulators:%d", err);
+		return err;
+
+	}
+
+	if (!qcadev->pwrseq && data && data->num_vregs) {
 		err = qca_init_regulators(qcadev, &serdev->dev, data->vregs,
 					  data->num_vregs);
 		if (err) {
-- 
2.30.2


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  parent reply	other threads:[~2021-08-17  0:56 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-17  0:54 [RFC PATCH 00/15] create power sequencing subsystem Dmitry Baryshkov
2021-08-17  0:54 ` [RFC PATCH 01/15] power: add power sequencer subsystem Dmitry Baryshkov
2021-08-19 23:37   ` Bjorn Andersson
2021-08-17  0:54 ` [RFC PATCH 02/15] pwrseq: port MMC's pwrseq drivers to new pwrseq subsystem Dmitry Baryshkov
2021-08-17  0:54 ` [RFC PATCH 03/15] mmc: core: switch " Dmitry Baryshkov
2021-08-17  0:54 ` [RFC PATCH 04/15] ath10k: add support for pwrseq sequencing Dmitry Baryshkov
2021-08-17  0:54 ` [RFC PATCH 05/15] Bluetooth: hci_qca: merge qca_power into qca_serdev Dmitry Baryshkov
2021-08-17  0:54 ` [RFC PATCH 06/15] Bluetooth: hci_qca: merge init paths Dmitry Baryshkov
2021-08-17  0:54 ` [RFC PATCH 07/15] Bluetooth: hci_qca: merge qca_power_on with qca_regulators_init Dmitry Baryshkov
2021-08-17  0:55 ` [RFC PATCH 08/15] Bluetooth: hci_qca: futher rework of power on/off handling Dmitry Baryshkov
2021-08-17  0:55 ` Dmitry Baryshkov [this message]
2021-08-17  0:55 ` [RFC PATCH 10/15] pwrseq: add support for QCA BT+WiFi power sequencer Dmitry Baryshkov
2021-08-19 23:18   ` Bjorn Andersson
2021-08-20  8:10     ` Dmitry Baryshkov
2021-08-20 16:35       ` Bjorn Andersson
2021-08-17  0:55 ` [RFC PATCH 11/15] arm64: dts: qcom: sdm845-db845c: switch bt+wifi to qca " Dmitry Baryshkov
2021-08-19 23:40   ` Bjorn Andersson
2021-08-17  0:55 ` [RFC PATCH 12/15] arm64: dts: qcom: qrb5165-rb5: add bluetooth support Dmitry Baryshkov
2021-08-17  0:55 ` [RFC PATCH 13/15] arm64: dts: qcom: sdm845-db845c: add second channel support to qca power sequencer Dmitry Baryshkov
2021-08-17  0:55 ` [RFC PATCH 14/15] WIP: PCI: qcom: use pwrseq to power up bus devices Dmitry Baryshkov
2021-08-19 23:44   ` Bjorn Andersson
2021-08-20  8:50     ` Dmitry Baryshkov
2021-08-17  0:55 ` [RFC PATCH 15/15] WIP: arm64: dts: qcom: qrb5165-rb5: add bus-pwrseq property to pcie0 Dmitry Baryshkov
2021-08-19 15:23 ` [RFC PATCH 00/15] create power sequencing subsystem Marcel Holtmann
2021-08-20 13:08   ` Dmitry Baryshkov
2021-08-20 17:02     ` Bjorn Andersson
2021-08-20 18:06       ` Dmitry Baryshkov
2021-08-21  6:50     ` Marcel Holtmann

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