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From: Sibi Sankar <sibis@codeaurora.org>
To: bjorn.andersson@linaro.org, p.zabel@pengutronix.de, robh+dt@kernel.org
Cc: linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org, sibis@codeaurora.org,
	georgi.djakov@linaro.org, jassisinghbrar@gmail.com,
	ohad@wizery.com, mark.rutland@arm.com, kyan@codeaurora.org,
	sricharan@codeaurora.org, akdwived@codeaurora.org,
	linux-arm-msm@vger.kernel.org, tsoni@codeaurora.org
Subject: [PATCH v5 6/8] remoteproc: qcom: Introduce reset assert/deassert helper functions
Date: Mon, 21 May 2018 22:57:12 +0530
Message-ID: <20180521172714.8551-7-sibis@codeaurora.org> (raw)
In-Reply-To: <20180521172714.8551-1-sibis@codeaurora.org>

Adding reset assert/deassert helper functions to handle SoC
specific reset sequences. This wil be used by SDM845 to assert and
deassert ALT_RESET and MSS_RESET signals.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---
 drivers/remoteproc/qcom_q6v5_pil.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index a5fa6521bb83..552805bc07c1 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -352,6 +352,16 @@ static int q6v5_load(struct rproc *rproc, const struct firmware *fw)
 	return 0;
 }
 
+static int q6v5_reset_assert(struct q6v5 *qproc)
+{
+	return reset_control_assert(qproc->mss_restart);
+}
+
+static int q6v5_reset_deassert(struct q6v5 *qproc)
+{
+	return reset_control_deassert(qproc->mss_restart);
+}
+
 static int q6v5_rmb_pbl_wait(struct q6v5 *qproc, int ms)
 {
 	unsigned long timeout;
@@ -767,7 +777,7 @@ static int q6v5_start(struct rproc *rproc)
 		dev_err(qproc->dev, "failed to enable supplies\n");
 		goto disable_proxy_clk;
 	}
-	ret = reset_control_deassert(qproc->mss_restart);
+	ret = q6v5_reset_deassert(qproc);
 	if (ret) {
 		dev_err(qproc->dev, "failed to deassert mss restart\n");
 		goto disable_vdd;
@@ -859,7 +869,7 @@ static int q6v5_start(struct rproc *rproc)
 			 qproc->active_clk_count);
 
 assert_reset:
-	reset_control_assert(qproc->mss_restart);
+	q6v5_reset_assert(qproc);
 disable_vdd:
 	q6v5_regulator_disable(qproc, qproc->active_regs,
 			       qproc->active_reg_count);
@@ -909,7 +919,7 @@ static int q6v5_stop(struct rproc *rproc)
 				      qproc->mpss_phys, qproc->mpss_size);
 	WARN_ON(ret);
 
-	reset_control_assert(qproc->mss_restart);
+	q6v5_reset_assert(qproc);
 	q6v5_disable_irqs(qproc);
 
 	if (!qproc->unvoted_flag) {
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-21 17:27 [PATCH v5 0/8] Add support for remoteproc modem-pil on SDM845 SoCs Sibi Sankar
2018-05-21 17:27 ` [PATCH v5 1/8] dt-bindings: reset: Add AOSS reset bindings for " Sibi Sankar
2018-05-22 16:17   ` Rob Herring
2018-06-23  0:44   ` Bjorn Andersson
2018-06-27 14:24     ` Sibi S
2018-05-21 17:27 ` [PATCH v5 2/8] reset: qcom: AOSS (always on subsystem) reset controller Sibi Sankar
2018-06-23  0:46   ` Bjorn Andersson
2018-05-21 17:27 ` [PATCH v5 3/8] remoteproc: Move proxy unvote to handover irq handler Sibi Sankar
2018-05-22  4:35   ` Bjorn Andersson
2018-05-22  6:31     ` Sibi S
2018-05-21 17:27 ` [PATCH v5 4/8] remoteproc: Synchronize proxy unvote from multiple contexts Sibi Sankar
2018-05-21 17:27 ` [PATCH v5 5/8] dt-bindings: remoteproc: Add Q6v5 Modem PIL binding for SDM845 Sibi Sankar
2018-05-22 15:56   ` Rob Herring
2018-05-29 14:37     ` Sibi S
2018-05-29 15:45       ` Rob Herring
2018-05-21 17:27 ` Sibi Sankar [this message]
2018-05-21 17:27 ` [PATCH v5 7/8] remoteproc: qcom: Add support for mss remoteproc on SDM845 Sibi Sankar
2018-05-21 17:27 ` [PATCH v5 8/8] remoteproc: qcom: Allow defining GLINK edge for mss remoteproc Sibi Sankar

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