[PATCH v4 21/21] firmware: qcom_scm: Add multiple download mode support

Mukesh Ojha
2023-06-28T12:40:35Z

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