linux-kernel - [PATCH v2 2/2] clk: qcom: Make oxili GDSC parent of oxili

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Date:	Thu,  1 Oct 2015 12:22:54 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Mike Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>
Cc:	linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
	Rob Clark <robdclark@...il.com>,
	"Rafael J . Wysocki" <rjw@...ysocki.net>,
	Kevin Hilman <khilman@...nel.org>, linux-pm@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Rajendra Nayak <rnayak@...eaurora.org>
Subject: [PATCH v2 2/2] clk: qcom: Make oxili GDSC parent of oxili_cx GDSC

The oxili_cx GDSC is inside the power domain of the oxili GDSC.
Add the dependency so that the CX domain can properly power up.

Reported-by: Rob Clark <robdclark@...il.com>
Cc: Rajendra Nayak <rnayak@...eaurora.org>
Signed-off-by: Stephen Boyd <sboyd@...eaurora.org>
---

 drivers/clk/qcom/mmcc-msm8974.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/mmcc-msm8974.c b/drivers/clk/qcom/mmcc-msm8974.c
index fe8320dc41db..cf2a7c9c95e6 100644
--- a/drivers/clk/qcom/mmcc-msm8974.c
+++ b/drivers/clk/qcom/mmcc-msm8974.c
@@ -2615,6 +2615,7 @@ MODULE_DEVICE_TABLE(of, mmcc_msm8974_match_table);
 static int mmcc_msm8974_probe(struct platform_device *pdev)
 {
 	struct regmap *regmap;
+	int ret;
 
 	regmap = qcom_cc_map(pdev, &mmcc_msm8974_desc);
 	if (IS_ERR(regmap))
@@ -2623,11 +2624,19 @@ static int mmcc_msm8974_probe(struct platform_device *pdev)
 	clk_pll_configure_sr_hpm_lp(&mmpll1, regmap, &mmpll1_config, true);
 	clk_pll_configure_sr_hpm_lp(&mmpll3, regmap, &mmpll3_config, false);
 
-	return qcom_cc_really_probe(pdev, &mmcc_msm8974_desc, regmap);
+	ret = qcom_cc_really_probe(pdev, &mmcc_msm8974_desc, regmap);
+	if (ret)
+		return ret;
+
+	ret = pm_genpd_add_subdomain(&oxili_gdsc.pd, &oxilicx_gdsc.pd);
+	if (ret)
+		qcom_cc_remove(pdev);
+	return ret;
 }
 
 static int mmcc_msm8974_remove(struct platform_device *pdev)
 {
+	pm_genpd_remove_subdomain(&oxili_gdsc.pd, &oxilicx_gdsc.pd);
 	qcom_cc_remove(pdev);
 	return 0;
 }
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

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