All of lore.kernel.org
 help / color / mirror / Atom feed
From: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
To: bjorn.andersson@linaro.org
Cc: sboyd@codeaurora.org, agross@codeaurora.org,
	linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-remoteproc@vger.kernel.org,
	Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
Subject: [PATCH v5 5/7] remoteproc: qcom: Modify clock enable and disable interface.
Date: Thu, 15 Dec 2016 17:51:28 +0530	[thread overview]
Message-ID: <1481804490-8583-6-git-send-email-akdwived@codeaurora.org> (raw)
In-Reply-To: <1481804490-8583-1-git-send-email-akdwived@codeaurora.org>

Clock enable/disable routine will get additional input parameter of
pointer of array of clock struct's and clock count, it will use these
pre initialized values to turn them up/down.

Signed-off-by: Avaneesh Kumar Dwivedi <akdwived@codeaurora.org>
---
 drivers/remoteproc/qcom_q6v5_pil.c | 85 ++++++++++++++++++++++++++------------
 1 file changed, 58 insertions(+), 27 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_pil.c b/drivers/remoteproc/qcom_q6v5_pil.c
index e19fb9d..1018b8f 100644
--- a/drivers/remoteproc/qcom_q6v5_pil.c
+++ b/drivers/remoteproc/qcom_q6v5_pil.c
@@ -140,11 +140,6 @@ struct q6v5 {
 	int active_reg_count;
 	int proxy_reg_count;
 
-
-	struct clk *ahb_clk;
-	struct clk *axi_clk;
-	struct clk *rom_clk;
-
 	struct completion start_done;
 	struct completion stop_done;
 	bool running;
@@ -252,6 +247,38 @@ static void q6v5_regulator_disable(struct q6v5 *qproc,
 	}
 }
 
+
+static int q6v5_clk_enable(struct device *dev,
+			struct clk **clks, int count)
+{
+	int rc;
+	int i;
+
+	for (i = 0; i < count; i++) {
+		rc = clk_prepare_enable(clks[i]);
+		if (rc) {
+			dev_err(dev, "Clock enable failed\n");
+			goto err;
+		}
+	}
+
+	return 0;
+err:
+	for (i--; i >= 0; i--)
+		clk_disable_unprepare(clks[i]);
+
+	return rc;
+}
+
+static void q6v5_clk_disable(struct device *dev,
+			struct clk **clks, int count)
+{
+	int i;
+
+	for (i = 0; i < count; i++)
+		clk_disable_unprepare(clks[i]);
+}
+
 static int q6v5_load(struct rproc *rproc, const struct firmware *fw)
 {
 	struct q6v5 *qproc = rproc->priv;
@@ -548,11 +575,18 @@ static int q6v5_start(struct rproc *rproc)
 		return ret;
 	}
 
+	ret = q6v5_clk_enable(qproc->dev, qproc->proxy_clks,
+					qproc->proxy_clk_count);
+	if (ret) {
+		dev_err(qproc->dev, "failed to enable proxy clocks\n");
+		goto disable_proxy_reg;
+	}
+
 	ret = q6v5_regulator_enable(qproc, qproc->active_regs,
 					qproc->active_reg_count);
 	if (ret) {
 		dev_err(qproc->dev, "failed to enable supplies\n");
-		goto disable_proxy_reg;
+		goto disable_proxy_clk;
 	}
 	ret = reset_control_deassert(qproc->mss_restart);
 	if (ret) {
@@ -560,17 +594,12 @@ static int q6v5_start(struct rproc *rproc)
 		goto disable_vdd;
 	}
 
-	ret = clk_prepare_enable(qproc->ahb_clk);
-	if (ret)
+	ret = q6v5_clk_enable(qproc->dev, qproc->active_clks,
+					qproc->active_clk_count);
+	if (ret) {
+		dev_err(qproc->dev, "failed to enable clocks\n");
 		goto assert_reset;
-
-	ret = clk_prepare_enable(qproc->axi_clk);
-	if (ret)
-		goto disable_ahb_clk;
-
-	ret = clk_prepare_enable(qproc->rom_clk);
-	if (ret)
-		goto disable_axi_clk;
+	}
 
 	writel(qproc->mba_phys, qproc->rmb_base + RMB_MBA_IMAGE_REG);
 
@@ -605,25 +634,26 @@ static int q6v5_start(struct rproc *rproc)
 
 	qproc->running = true;
 
-	/* TODO: All done, release the handover resources */
-
+	q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
+				qproc->proxy_clk_count);
+	q6v5_regulator_disable(qproc, qproc->proxy_regs,
+				qproc->proxy_reg_count);
 	return 0;
 
 halt_axi_ports:
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_q6);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_modem);
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
-
-	clk_disable_unprepare(qproc->rom_clk);
-disable_axi_clk:
-	clk_disable_unprepare(qproc->axi_clk);
-disable_ahb_clk:
-	clk_disable_unprepare(qproc->ahb_clk);
+	q6v5_clk_disable(qproc->dev, qproc->active_clks,
+				qproc->active_clk_count);
 assert_reset:
 	reset_control_assert(qproc->mss_restart);
 disable_vdd:
 	q6v5_regulator_disable(qproc, qproc->active_regs,
 				qproc->active_reg_count);
+disable_proxy_clk:
+	q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
+				qproc->proxy_clk_count);
 disable_proxy_reg:
 	q6v5_regulator_disable(qproc, qproc->proxy_regs,
 				qproc->proxy_reg_count);
@@ -652,9 +682,10 @@ static int q6v5_stop(struct rproc *rproc)
 	q6v5proc_halt_axi_port(qproc, qproc->halt_map, qproc->halt_nc);
 
 	reset_control_assert(qproc->mss_restart);
-	clk_disable_unprepare(qproc->rom_clk);
-	clk_disable_unprepare(qproc->axi_clk);
-	clk_disable_unprepare(qproc->ahb_clk);
+	q6v5_clk_disable(qproc->dev, qproc->active_clks,
+				qproc->active_clk_count);
+	q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
+				qproc->proxy_clk_count);
 	q6v5_regulator_disable(qproc, qproc->active_regs,
 				qproc->active_reg_count);
 	q6v5_regulator_disable(qproc, qproc->proxy_regs,
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project.

  parent reply	other threads:[~2016-12-15 12:21 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-15 12:21 [PATCH v5 0/7] remoteproc: qcom: Add support of mss rproc for msm8996 Avaneesh Kumar Dwivedi
2016-12-15 12:21 ` [PATCH v5 1/7] remoteproc: qcom: Add private resource struct and new compatible Avaneesh Kumar Dwivedi
2016-12-15 12:21 ` [PATCH v5 2/7] remoteproc: qcom: Add and initialize proxy and active clocks Avaneesh Kumar Dwivedi
2016-12-22 21:42   ` Bjorn Andersson
2016-12-30 10:50     ` Dwivedi, Avaneesh Kumar (avani)
2016-12-15 12:21 ` [PATCH v5 3/7] remoteproc: qcom: Add and initialize proxy and active regulators Avaneesh Kumar Dwivedi
2016-12-22 21:46   ` Bjorn Andersson
2016-12-30 11:02     ` Dwivedi, Avaneesh Kumar (avani)
2016-12-28 23:38   ` Stephen Boyd
2016-12-15 12:21 ` [PATCH v5 4/7] remoteproc: qcom: Modify regulator enable and disable interface Avaneesh Kumar Dwivedi
2016-12-23  0:15   ` Bjorn Andersson
2016-12-15 12:21 ` Avaneesh Kumar Dwivedi [this message]
2016-12-23  0:17   ` [PATCH v5 5/7] remoteproc: qcom: Modify clock " Bjorn Andersson
2016-12-15 12:21 ` [PATCH v5 6/7] remoteproc: qcom: Implement Hexagon core specific changes Avaneesh Kumar Dwivedi
2016-12-23  1:04   ` Bjorn Andersson
2016-12-23  1:04     ` Bjorn Andersson
2016-12-30 10:18     ` Dwivedi, Avaneesh Kumar (avani)
2016-12-15 12:21 ` [PATCH v5 7/7] clk: qcom: Add GCC_MSS_RESET support Avaneesh Kumar Dwivedi
2016-12-28 23:40   ` Stephen Boyd
2016-12-29 17:09     ` Andy Gross
2016-12-29 19:55       ` Bjorn Andersson
  -- strict thread matches above, loose matches on Subject: below --
2016-12-15 12:05 [PATCH v5 0/7] remoteproc: qcom: Add support of mss rproc for msm8996 Avaneesh Kumar Dwivedi
2016-12-15 12:05 ` [PATCH v5 5/7] remoteproc: qcom: Modify clock enable and disable interface Avaneesh Kumar Dwivedi

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1481804490-8583-6-git-send-email-akdwived@codeaurora.org \
    --to=akdwived@codeaurora.org \
    --cc=agross@codeaurora.org \
    --cc=bjorn.andersson@linaro.org \
    --cc=linux-arm-msm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-remoteproc@vger.kernel.org \
    --cc=sboyd@codeaurora.org \
    --subject='Re: [PATCH v5 5/7] remoteproc: qcom: Modify clock enable and disable interface.' \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.