linux-kernel - [PATCH v11 7/7] pinctrl: qcom: Update clock voting as optional

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Date:   Tue, 15 Mar 2022 21:20:13 +0530
From:   Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
To:     <agross@...nel.org>, <bjorn.andersson@...aro.org>,
        <lgirdwood@...il.com>, <broonie@...nel.org>, <robh+dt@...nel.org>,
        <quic_plai@...cinc.com>, <bgoswami@...eaurora.org>,
        <perex@...ex.cz>, <tiwai@...e.com>,
        <srinivas.kandagatla@...aro.org>, <rohitkr@...eaurora.org>,
        <linux-arm-msm@...r.kernel.org>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <swboyd@...omium.org>, <judyhsiao@...omium.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        <linux-gpio@...r.kernel.org>
CC:     Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>,
        "Venkata Prasad Potturu" <quic_potturu@...cinc.com>
Subject: [PATCH v11 7/7] pinctrl: qcom: Update clock voting as optional

Update bulk clock voting to optional voting as ADSP bypass platform doesn't
need macro and decodec clocks, as these macro and dcodec GDSC switches are
maintained as power domains and operated from lpass clock drivers.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
---
 drivers/pinctrl/qcom/pinctrl-lpass-lpi.c        | 12 +++++++++---
 drivers/pinctrl/qcom/pinctrl-lpass-lpi.h        |  1 +
 drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c |  1 +
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
index 0216ca1..3fc473a 100644
--- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
+++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.c
@@ -401,9 +401,15 @@ int lpi_pinctrl_probe(struct platform_device *pdev)
 		return dev_err_probe(dev, PTR_ERR(pctrl->slew_base),
 				     "Slew resource not provided\n");
 
-	ret = devm_clk_bulk_get(dev, MAX_LPI_NUM_CLKS, pctrl->clks);
-	if (ret)
-		return dev_err_probe(dev, ret, "Can't get clocks\n");
+	if (data->is_clk_optional) {
+		ret = devm_clk_bulk_get_optional(dev, MAX_LPI_NUM_CLKS, pctrl->clks);
+		if (ret)
+			return dev_err_probe(dev, ret, "Can't get clocks\n");
+	} else {
+		ret = devm_clk_bulk_get(dev, MAX_LPI_NUM_CLKS, pctrl->clks);
+		if (ret)
+			return dev_err_probe(dev, ret, "Can't get clocks\n");
+	}
 
 	ret = clk_bulk_prepare_enable(MAX_LPI_NUM_CLKS, pctrl->clks);
 	if (ret)
diff --git a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
index afbac2a..3bcede6 100644
--- a/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
+++ b/drivers/pinctrl/qcom/pinctrl-lpass-lpi.h
@@ -77,6 +77,7 @@ struct lpi_pinctrl_variant_data {
 	int ngroups;
 	const struct lpi_function *functions;
 	int nfunctions;
+	int is_clk_optional;
 };
 
 int lpi_pinctrl_probe(struct platform_device *pdev);
diff --git a/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c b/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
index d67ff25..304d8a2 100644
--- a/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
+++ b/drivers/pinctrl/qcom/pinctrl-sc7280-lpass-lpi.c
@@ -142,6 +142,7 @@ static const struct lpi_pinctrl_variant_data sc7280_lpi_data = {
 	.ngroups = ARRAY_SIZE(sc7280_groups),
 	.functions = sc7280_functions,
 	.nfunctions = ARRAY_SIZE(sc7280_functions),
+	.is_clk_optional = 1,
 };
 
 static const struct of_device_id lpi_pinctrl_of_match[] = {
-- 
2.7.4