linux-kernel - [PATCH 2/2] clk: qcom: lpasscc: Add resets for SC7280 audioreach clock controller

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Date:   Wed, 21 Dec 2022 15:51:01 +0530
From:   Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
To:     <swboyd@...omium.org>, <agross@...nel.org>, <andersson@...nel.org>,
        <robh+dt@...nel.org>, <broonie@...nel.org>,
        <quic_plai@...cinc.com>, <krzysztof.kozlowski+dt@...aro.org>,
        <konrad.dybcio@...ainline.org>, <mturquette@...libre.com>,
        <sboyd@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-clk@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_rohkumar@...cinc.com>
CC:     Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
Subject: [PATCH 2/2] clk: qcom: lpasscc: Add resets for SC7280 audioreach clock controller

The clock gating control for TX/RX/WSA core bus clocks would be required
to be reset(moved from hardware control) from audio core driver. Thus
add the support for the reset clocks in audioreach based clock driver.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
---
 drivers/clk/qcom/lpasscc-sc7280.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/clk/qcom/lpasscc-sc7280.c b/drivers/clk/qcom/lpasscc-sc7280.c
index 5c1e17b..d81d81b 100644
--- a/drivers/clk/qcom/lpasscc-sc7280.c
+++ b/drivers/clk/qcom/lpasscc-sc7280.c
@@ -12,10 +12,12 @@
 #include <linux/regmap.h>
 
 #include <dt-bindings/clock/qcom,lpass-sc7280.h>
+#include <dt-bindings/clock/qcom,lpassaudiocc-sc7280.h>
 
 #include "clk-regmap.h"
 #include "clk-branch.h"
 #include "common.h"
+#include "reset.h"
 
 static struct clk_branch lpass_top_cc_lpi_q6_axim_hs_clk = {
 	.halt_reg = 0x0,
@@ -102,6 +104,18 @@ static const struct qcom_cc_desc lpass_qdsp6ss_sc7280_desc = {
 	.num_clks = ARRAY_SIZE(lpass_qdsp6ss_sc7280_clocks),
 };
 
+static const struct qcom_reset_map lpass_cc_sc7280_resets[] = {
+	[LPASS_AUDIO_SWR_RX_CGCR] =  { 0xa0, 1 },
+	[LPASS_AUDIO_SWR_TX_CGCR] =  { 0xa8, 1 },
+	[LPASS_AUDIO_SWR_WSA_CGCR] = { 0xb0, 1 },
+};
+
+static const struct qcom_cc_desc lpass_audio_cc_reset_sc7280_desc = {
+	.config = &lpass_regmap_config,
+	.resets = lpass_cc_sc7280_resets,
+	.num_resets = ARRAY_SIZE(lpass_cc_sc7280_resets),
+};
+
 static int lpass_cc_sc7280_probe(struct platform_device *pdev)
 {
 	const struct qcom_cc_desc *desc;
@@ -132,6 +146,10 @@ static int lpass_cc_sc7280_probe(struct platform_device *pdev)
 	if (ret)
 		goto destroy_pm_clk;
 
+	ret = qcom_cc_probe_by_index(pdev, 1, &lpass_audio_cc_reset_sc7280_desc);
+	if (ret)
+		goto destroy_pm_clk;
+
 	return 0;
 
 destroy_pm_clk:
-- 
2.7.4