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From:   Mukesh Ojha <quic_mojha@quicinc.com>
To:     <corbet@lwn.net>, <agross@kernel.org>, <andersson@kernel.org>,
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CC:     <linux-doc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
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        "Mukesh Ojha" <quic_mojha@quicinc.com>
Subject: [PATCH v4 21/21] firmware: qcom_scm: Add multiple download mode support
Date:   Wed, 28 Jun 2023 18:04:48 +0530
Message-ID: <1687955688-20809-22-git-send-email-quic_mojha@quicinc.com>
In-Reply-To: <1687955688-20809-1-git-send-email-quic_mojha@quicinc.com>
References: <1687955688-20809-1-git-send-email-quic_mojha@quicinc.com>
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Currently, scm driver only supports full dump when download
mode is selected. Add support to enable minidump as well as
enable it along with fulldump.

Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
---
 drivers/firmware/qcom_scm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c
index 946cb0f76a17..52e3b613a1af 100644
--- a/drivers/firmware/qcom_scm.c
+++ b/drivers/firmware/qcom_scm.c
@@ -31,6 +31,8 @@ static u32 download_mode;
 #define SCM_HAS_BUS_CLK		BIT(2)
 
 #define QCOM_DOWNLOAD_FULLDUMP		 0x1
+#define QCOM_DOWNLOAD_MINIDUMP		 0x2
+#define QCOM_DOWNLOAD_BOTHDUMP		 (QCOM_DOWNLOAD_FULLDUMP | QCOM_DOWNLOAD_MINIDUMP)
 #define QCOM_DOWNLOAD_NODUMP		 0x0
 #define QCOM_DOWNLOAD_MODE_SHIFT	   4
 #define QCOM_DOWNLOAD_MODE_MASK		0x30
@@ -85,6 +87,8 @@ static const char * const qcom_scm_convention_names[] = {
 static const char * const download_mode_name[] = {
 	[QCOM_DOWNLOAD_NODUMP]	 = "off",
 	[QCOM_DOWNLOAD_FULLDUMP] = "full",
+	[QCOM_DOWNLOAD_MINIDUMP] = "mini",
+	[QCOM_DOWNLOAD_BOTHDUMP] = "full,mini",
 };
 
 static struct qcom_scm *__scm;
@@ -1465,7 +1469,7 @@ static const struct kernel_param_ops download_mode_param_ops = {
 
 module_param_cb(download_mode, &download_mode_param_ops, NULL, 0644);
 MODULE_PARM_DESC(download_mode,
-		"download mode: off/full are acceptable values");
+		"download mode: off/full/mini/full,mini are acceptable values");
 
 static int qcom_scm_probe(struct platform_device *pdev)
 {
-- 
2.7.4