linux-kernel - [PATCH v2 4/4] clk: qcom: lpasscc-sc7280: Add resets for audioreach

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Date:   Fri, 30 Dec 2022 19:13:19 +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 v2 4/4] clk: qcom: lpasscc-sc7280: Add resets for audioreach

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>
Tested-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
---
 drivers/clk/qcom/lpasscc-sc7280.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/clk/qcom/lpasscc-sc7280.c b/drivers/clk/qcom/lpasscc-sc7280.c
index 87e1c21..a7f4ed4 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,
@@ -48,6 +50,18 @@ static const struct qcom_cc_desc lpass_cc_top_sc7280_desc = {
 	.num_clks = ARRAY_SIZE(lpass_cc_top_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;
@@ -71,6 +85,13 @@ static int lpass_cc_sc7280_probe(struct platform_device *pdev)
 	if (ret)
 		goto destroy_pm_clk;
 
+	lpass_regmap_config.name = "reset_cgcr";
+	desc = &lpass_audio_cc_reset_sc7280_desc;
+
+	ret = qcom_cc_probe_by_index(pdev, 1, desc);
+	if (ret)
+		goto destroy_pm_clk;
+
 	return 0;
 
 destroy_pm_clk:
-- 
2.7.4