[v7 1/4] remoteproc: qcom: wcss: populate hardcoded param using driver data

From: Gokul Sriram Palanisamy <gokulsri@codeaurora.org>
To: bjorn.andersson@linaro.org, linux-remoteproc@vger.kernel.org,
	sboyd@kernel.org, linux-clk@vger.kernel.org,
	linux-arm-msm@vger.kernel.org
Cc: agross@kernel.org, linux-soc@vger.kernel.org,
	devicetree@vger.kernel.org, govinds@codeaurora.org,
	sricharan@codeaurora.org, gokulsri@codeaurora.org
Subject: [v7 1/4] remoteproc: qcom: wcss: populate hardcoded param using driver data
Date: Fri,  3 Jul 2020 14:28:39 +0530	[thread overview]
Message-ID: <1593766722-28838-2-git-send-email-gokulsri@codeaurora.org> (raw)
In-Reply-To: <1593766722-28838-1-git-send-email-gokulsri@codeaurora.org>

From: Govind Singh <govinds@codeaurora.org>

Q6 based WiFi fw loading is supported across
different targets, ex: IPQ8074/QCS404. In order to
support different fw names/pas id etc, populate
hardcoded param using driver data.

Signed-off-by: Govind Singh <govinds@codeaurora.org>
[rebased on top of 5.8-rc3]
Signed-off-by: Gokul Sriram Palanisamy <gokulsri@codeaurora.org>
---
 drivers/remoteproc/qcom_q6v5_wcss.c | 31 ++++++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 5 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
index 88c76b9..abc5f9d 100644
--- a/drivers/remoteproc/qcom_q6v5_wcss.c
+++ b/drivers/remoteproc/qcom_q6v5_wcss.c
@@ -8,6 +8,7 @@
 #include <linux/kernel.h>
 #include <linux/mfd/syscon.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/of_reserved_mem.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
@@ -70,6 +71,11 @@
 #define TCSR_WCSS_CLK_MASK	0x1F
 #define TCSR_WCSS_CLK_ENABLE	0x14
 
+struct wcss_data {
+	const char *firmware_name;
+	int crash_reason_smem;
+};
+
 struct q6v5_wcss {
 	struct device *dev;
 
@@ -92,6 +98,8 @@ struct q6v5_wcss {
 	void *mem_region;
 	size_t mem_size;
 
+	int crash_reason_smem;
+
 	struct qcom_rproc_glink glink_subdev;
 	struct qcom_rproc_ssr ssr_subdev;
 };
@@ -430,7 +438,7 @@ static int q6v5_wcss_load(struct rproc *rproc, const struct firmware *fw)
 				     wcss->mem_size, &wcss->mem_reloc);
 }
 
-static const struct rproc_ops q6v5_wcss_ops = {
+static const struct rproc_ops q6v5_wcss_ipq8074_ops = {
 	.start = q6v5_wcss_start,
 	.stop = q6v5_wcss_stop,
 	.da_to_va = q6v5_wcss_da_to_va,
@@ -530,12 +538,17 @@ static int q6v5_alloc_memory_region(struct q6v5_wcss *wcss)
 
 static int q6v5_wcss_probe(struct platform_device *pdev)
 {
+	const struct wcss_data *desc;
 	struct q6v5_wcss *wcss;
 	struct rproc *rproc;
 	int ret;
 
-	rproc = rproc_alloc(&pdev->dev, pdev->name, &q6v5_wcss_ops,
-			    "IPQ8074/q6_fw.mdt", sizeof(*wcss));
+	desc = of_device_get_match_data(&pdev->dev);
+	if (!desc)
+		return -EINVAL;
+
+	rproc = rproc_alloc(&pdev->dev, pdev->name, &q6v5_wcss_ipq8074_ops,
+			    desc->firmware_name, sizeof(*wcss));
 	if (!rproc) {
 		dev_err(&pdev->dev, "failed to allocate rproc\n");
 		return -ENOMEM;
@@ -543,6 +556,7 @@ static int q6v5_wcss_probe(struct platform_device *pdev)
 
 	wcss = rproc->priv;
 	wcss->dev = &pdev->dev;
+	wcss->crash_reason_smem = desc->crash_reason_smem;
 
 	ret = q6v5_wcss_init_mmio(wcss, pdev);
 	if (ret)
@@ -556,7 +570,8 @@ static int q6v5_wcss_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_rproc;
 
-	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, WCSS_CRASH_REASON, NULL);
+	ret = qcom_q6v5_init(&wcss->q6v5, pdev, rproc, desc->crash_reason_smem,
+			     NULL);
 	if (ret)
 		goto free_rproc;
 
@@ -587,8 +602,14 @@ static int q6v5_wcss_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct wcss_data wcss_ipq8074_res_init = {
+	.firmware_name = "IPQ8074/q6_fw.mdt",
+	.crash_reason_smem = WCSS_CRASH_REASON,
+};
+
 static const struct of_device_id q6v5_wcss_of_match[] = {
-	{ .compatible = "qcom,ipq8074-wcss-pil" },
+	{ .compatible = "qcom,ipq8074-wcss-pil", .data = &wcss_ipq8074_res_init },
+
 	{ },
 };
 MODULE_DEVICE_TABLE(of, q6v5_wcss_of_match);
-- 
2.7.4

