linux-kernel - [PATCH 8/8] remoteproc: qcom_q6v5

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Message-Id: <20251228-mss-v1-8-aeb36b1f7a3f@mainlining.org>
Date: Sun, 28 Dec 2025 15:21:58 +0100
From: Barnabás Czémán <barnabas.czeman@...nlining.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Mathieu Poirier <mathieu.poirier@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Stephan Gerhold <stephan@...hold.net>
Cc: linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Barnabás Czémán <barnabas.czeman@...nlining.org>
Subject: [PATCH 8/8] remoteproc: qcom_q6v5_mss: Add MSM8940

Add support for MSM8940 MSS it is similar for MSM8937 MSS
without inrush current mitigation.

Signed-off-by: Barnabás Czémán <barnabas.czeman@...nlining.org>
---
 drivers/remoteproc/qcom_q6v5_mss.c | 44 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 2ffcea7dbc79..27f4bd507a39 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -262,6 +262,7 @@ enum {
 	MSS_MSM8917,
 	MSS_MSM8926,
 	MSS_MSM8937,
+	MSS_MSM8940,
 	MSS_MSM8953,
 	MSS_MSM8974,
 	MSS_MSM8996,
@@ -753,6 +754,7 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 		   qproc->version == MSS_MSM8909 ||
 		   qproc->version == MSS_MSM8917 ||
 		   qproc->version == MSS_MSM8937 ||
+		   qproc->version == MSS_MSM8940 ||
 		   qproc->version == MSS_MSM8953 ||
 		   qproc->version == MSS_MSM8996 ||
 		   qproc->version == MSS_MSM8998 ||
@@ -761,7 +763,8 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 		/* Override the ACC value if required */
 		if (qproc->version == MSS_MDM9607 ||
 		    qproc->version == MSS_MSM8917 ||
-		    qproc->version == MSS_MSM8937)
+		    qproc->version == MSS_MSM8937 ||
+		    qproc->version == MSS_MSM8940)
 			writel(QDSP6SS_ACC_OVERRIDE_VAL_9607,
 			       qproc->reg_base + QDSP6SS_STRAP_ACC);
 		else if (qproc->version != MSS_MSM8909 &&
@@ -825,6 +828,7 @@ static int q6v5proc_reset(struct q6v5 *qproc)
 			if (qproc->version == MSS_MDM9607 ||
 			    qproc->version == MSS_MSM8917 ||
 			    qproc->version == MSS_MSM8937 ||
+			    qproc->version == MSS_MSM8940 ||
 			    qproc->version == MSS_MSM8953 ||
 			    qproc->version == MSS_MSM8996) {
 				mem_pwr_ctl = QDSP6SS_MEM_PWR_CTL;
@@ -1472,6 +1476,7 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 	}
 
 	if (qproc->version == MSS_MSM8937 ||
+	    qproc->version == MSS_MSM8940 ||
 	    qproc->version == MSS_MSM8953) {
 		ret = qcom_scm_pas_mem_setup(MPSS_PAS_ID, qproc->mpss_phys, qproc->mpss_size);
 		if (ret) {
@@ -2621,6 +2626,42 @@ static const struct rproc_hexagon_res msm8937_mss = {
 	.version = MSS_MSM8937,
 };
 
+static const struct rproc_hexagon_res msm8940_mss = {
+	.hexagon_mba_image = "mba.mbn",
+	.proxy_supply = (struct qcom_mss_reg_res[]) {
+		{
+			.supply = "pll",
+			.uA = 100000,
+		},
+		{}
+	},
+	.proxy_clk_names = (char*[]){
+		"xo",
+		NULL
+	},
+	.active_clk_names = (char*[]){
+		"iface",
+		"bus",
+		"mem",
+		NULL
+	},
+	.proxy_pd_names = (char*[]) {
+		"cx",
+		"mx",
+		"mss",
+		NULL
+	},
+	.need_mem_protection = false,
+	.has_alt_reset = false,
+	.has_mba_logs = false,
+	.has_spare_reg = false,
+	.has_qaccept_regs = false,
+	.has_ext_bhs_reg = false,
+	.has_ext_cntl_regs = false,
+	.has_vq6 = false,
+	.version = MSS_MSM8940,
+};
+
 static const struct rproc_hexagon_res msm8953_mss = {
 	.hexagon_mba_image = "mba.mbn",
 	.proxy_supply = (struct qcom_mss_reg_res[]) {
@@ -2803,6 +2844,7 @@ static const struct of_device_id q6v5_of_match[] = {
 	{ .compatible = "qcom,msm8917-mss-pil", .data = &msm8917_mss},
 	{ .compatible = "qcom,msm8926-mss-pil", .data = &msm8926_mss},
 	{ .compatible = "qcom,msm8937-mss-pil", .data = &msm8937_mss},
+	{ .compatible = "qcom,msm8940-mss-pil", .data = &msm8940_mss},
 	{ .compatible = "qcom,msm8953-mss-pil", .data = &msm8953_mss},
 	{ .compatible = "qcom,msm8974-mss-pil", .data = &msm8974_mss},
 	{ .compatible = "qcom,msm8996-mss-pil", .data = &msm8996_mss},

-- 
2.52.0