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quest-kexec/kernel/patches/0003-qkx-nothing-parked-by-default-SMB5-skips-initial-sta.patch
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From 3f87f8ba54d8e48d4c0ba52a9c98e0e2063f2a07 Mon Sep 17 00:00:00 2001
From: yusuf <[email protected]>
Date: Sat, 26 Sep 2026 21:16:55 +0300
Subject: [PATCH 3/3] qkx: nothing parked by default; SMB5 skips initial-status
handlers by default; drop SMB5 probe delays
---
drivers/base/dd.c | 4 +---
drivers/power/supply/qcom/qpnp-smb5.c | 29 +--------------------------
2 files changed, 2 insertions(+), 31 deletions(-)
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index cf26ea61ff..79b88557a7 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -205,9 +205,7 @@ void device_unblock_probing(void)
/* qkx: explicit diagnostic kick enables slow per-probe tracing. */
bool qkx_probe_trace;
/* Devices known to be unsafe or blocking when inherited across kexec. */
-static char *qkx_probe_skip =
- "c440000.qcom,spmi:qcom,pm8150b@2:qcom,qpnp-smb5|"
- "ac4d000.qcom,cpas-cdm0";
+static char *qkx_probe_skip = "";
/* Writable so a parked device can be released after USB logging is up. */
core_param(qkx_probe_skip, qkx_probe_skip, charp, 0644);
diff --git a/drivers/power/supply/qcom/qpnp-smb5.c b/drivers/power/supply/qcom/qpnp-smb5.c
index 11df10f366..8deb7b4252 100644
--- a/drivers/power/supply/qcom/qpnp-smb5.c
+++ b/drivers/power/supply/qcom/qpnp-smb5.c
@@ -3134,11 +3134,8 @@ static int smb5_post_init(struct smb5 *chip)
* DETERMINE INITIAL STATUS *
****************************/
-/* qkx: kexec-handoff probe checkpoints; delay lets live log reach the host. */
-#define QKX_SMB5_STEP(what) do { pr_emerg("qkxsmb5: before %s\n", what); msleep(100); } while (0)
-
/* qkx: skip hand-run IRQ handlers after kexec; real IRQs report the same state. */
-static bool qkx_skip_initial;
+static bool qkx_skip_initial = true;
module_param(qkx_skip_initial, bool, 0444);
static int smb5_determine_initial_status(struct smb5 *chip)
@@ -3163,27 +3160,16 @@ static int smb5_determine_initial_status(struct smb5 *chip)
return 0;
}
- QKX_SMB5_STEP("usb_plugin_irq_handler");
usb_plugin_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("dc_plugin_irq_handler");
dc_plugin_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("typec_attach_detach_irq_handler");
typec_attach_detach_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("typec_state_change_irq_handler");
typec_state_change_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("usb_source_change_irq_handler");
usb_source_change_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("chg_state_change_irq_handler");
chg_state_change_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("icl_change_irq_handler");
icl_change_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("batt_temp_changed_irq_handler");
batt_temp_changed_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("wdog_bark_irq_handler");
wdog_bark_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("typec_or_rid_detection_change_irq_handler");
typec_or_rid_detection_change_irq_handler(0, &irq_data);
- QKX_SMB5_STEP("wdog_snarl_irq_handler");
wdog_snarl_irq_handler(0, &irq_data);
return 0;
@@ -3740,7 +3726,6 @@ static int smb5_probe(struct platform_device *pdev)
return -EINVAL;
}
- QKX_SMB5_STEP("smb5_chg_config_init");
rc = smb5_chg_config_init(chip);
if (rc < 0) {
if (rc != -EPROBE_DEFER)
@@ -3748,7 +3733,6 @@ static int smb5_probe(struct platform_device *pdev)
return rc;
}
- QKX_SMB5_STEP("smb5_parse_dt");
rc = smb5_parse_dt(chip);
if (rc < 0) {
pr_err("Couldn't parse device tree rc=%d\n", rc);
@@ -3761,7 +3745,6 @@ static int smb5_probe(struct platform_device *pdev)
else
return -EPROBE_DEFER;
- QKX_SMB5_STEP("smblib_init");
rc = smblib_init(chg);
if (rc < 0) {
pr_err("Smblib_init failed rc=%d\n", rc);
@@ -3802,7 +3785,6 @@ static int smb5_probe(struct platform_device *pdev)
goto cleanup;
}
- QKX_SMB5_STEP("smb5_init_hw");
rc = smb5_init_hw(chip);
if (rc < 0) {
pr_err("Couldn't initialize hardware rc=%d\n", rc);
@@ -3818,7 +3800,6 @@ static int smb5_probe(struct platform_device *pdev)
* only.
*/
if (!chg->pd_not_supported) {
- QKX_SMB5_STEP("smb5_init_vbus_regulator");
rc = smb5_init_vbus_regulator(chip);
if (rc < 0) {
pr_err("Couldn't initialize vbus regulator rc=%d\n",
@@ -3826,7 +3807,6 @@ static int smb5_probe(struct platform_device *pdev)
goto cleanup;
}
- QKX_SMB5_STEP("smb5_init_vconn_regulator");
rc = smb5_init_vconn_regulator(chip);
if (rc < 0) {
pr_err("Couldn't initialize vconn regulator rc=%d\n",
@@ -3834,7 +3814,6 @@ static int smb5_probe(struct platform_device *pdev)
goto cleanup;
}
- QKX_SMB5_STEP("smb5_init_otg_boost_regulator");
rc = smb5_init_otg_boost_regulator(chip);
if (rc < 0) {
pr_err("Couldn't initialize otg boost regulator rc=%d\n",
@@ -3847,7 +3826,6 @@ static int smb5_probe(struct platform_device *pdev)
case PM8150B_SUBTYPE:
case PM6150_SUBTYPE:
case PM7250B_SUBTYPE:
- QKX_SMB5_STEP("smb5_init_dc_psy");
rc = smb5_init_dc_psy(chip);
if (rc < 0) {
pr_err("Couldn't initialize dc psy rc=%d\n", rc);
@@ -3858,7 +3836,6 @@ static int smb5_probe(struct platform_device *pdev)
break;
}
- QKX_SMB5_STEP("smb5_init_usb_psy");
rc = smb5_init_usb_psy(chip);
if (rc < 0) {
pr_err("Couldn't initialize usb psy rc=%d\n", rc);
@@ -3877,21 +3854,18 @@ static int smb5_probe(struct platform_device *pdev)
goto cleanup;
}
- QKX_SMB5_STEP("smb5_init_batt_psy");
rc = smb5_init_batt_psy(chip);
if (rc < 0) {
pr_err("Couldn't initialize batt psy rc=%d\n", rc);
goto cleanup;
}
- QKX_SMB5_STEP("smb5_init_typec_class");
rc = smb5_init_typec_class(chip);
if (rc < 0) {
pr_err("Couldn't initialize typec class rc=%d\n", rc);
goto cleanup;
}
- QKX_SMB5_STEP("smb5_determine_initial_status");
rc = smb5_determine_initial_status(chip);
if (rc < 0) {
pr_err("Couldn't determine initial status rc=%d\n",
@@ -3899,7 +3873,6 @@ static int smb5_probe(struct platform_device *pdev)
goto cleanup;
}
- QKX_SMB5_STEP("smb5_request_interrupts");
rc = smb5_request_interrupts(chip);
if (rc < 0) {
pr_err("Couldn't request interrupts rc=%d\n", rc);
--
2.55.0
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