I had incorrectly thought that PSC profiles were not usable on Intel
platforms so had blocked them in the driver initialistion. This broke
platform profiles on the T490.
After discussion with the FW team PSC does work on Intel platforms and
should be allowed.
Note - it's possible this may impact other platforms where it is advertised
but special driver support that only Windows has is needed. But if it does
then they will need fixing via quirks. Please report any issues to me so I
can get them addressed - but I haven't found any problems in testing...yet
Fixes: bce6243f767f ("platform/x86: thinkpad_acpi: do not use PSC mode on Intel platforms")
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2177962
Cc: stable(a)vger.kernel.org
Signed-off-by: Mark Pearson <mpearson-lenovo(a)squebb.ca>
---
drivers/platform/x86/thinkpad_acpi.c | 5 -----
1 file changed, 5 deletions(-)
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 826c522ed1c0..d84a4c7e3c35 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -10585,11 +10585,6 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
dytc_mmc_get_available = true;
}
} else if (dytc_capabilities & BIT(DYTC_FC_PSC)) { /* PSC MODE */
- /* Support for this only works on AMD platforms */
- if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
- dbg_printk(TPACPI_DBG_INIT, "PSC not support on Intel platforms\n");
- return -ENODEV;
- }
pr_debug("PSC is supported\n");
} else {
dbg_printk(TPACPI_DBG_INIT, "No DYTC support available\n");
--
2.40.0
The driver's probe() first registers regulators in a loop and then in a
second loop passes them as irq data to the interrupt handlers. However
the function to get the regulator for given name
tps65219_get_rdev_by_name() was a no-op due to argument passed by value,
not pointer, thus the second loop assigned always same value - from
previous loop. The interrupts, when fired, where executed with wrong
data. Compiler also noticed it:
drivers/regulator/tps65219-regulator.c: In function ‘tps65219_get_rdev_by_name’:
drivers/regulator/tps65219-regulator.c:292:60: error: parameter ‘dev’ set but not used [-Werror=unused-but-set-parameter]
Fixes: c12ac5fc3e0a ("regulator: drivers: Add TI TPS65219 PMIC regulators support")
Cc: <stable(a)vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski(a)linaro.org>
---
Not tested.
Sent two months ago and no comments, so resending.
Cc: Jerome Neanne <jneanne(a)baylibre.com>
Cc: khilman(a)baylibre.com
Cc: msp(a)baylibre.com
Cc: j-keerthy(a)ti.com
---
drivers/regulator/tps65219-regulator.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/regulator/tps65219-regulator.c b/drivers/regulator/tps65219-regulator.c
index b1719ee990ab..8971b507a79a 100644
--- a/drivers/regulator/tps65219-regulator.c
+++ b/drivers/regulator/tps65219-regulator.c
@@ -289,13 +289,13 @@ static irqreturn_t tps65219_regulator_irq_handler(int irq, void *data)
static int tps65219_get_rdev_by_name(const char *regulator_name,
struct regulator_dev *rdevtbl[7],
- struct regulator_dev *dev)
+ struct regulator_dev **dev)
{
int i;
for (i = 0; i < ARRAY_SIZE(regulators); i++) {
if (strcmp(regulator_name, regulators[i].name) == 0) {
- dev = rdevtbl[i];
+ *dev = rdevtbl[i];
return 0;
}
}
@@ -348,7 +348,7 @@ static int tps65219_regulator_probe(struct platform_device *pdev)
irq_data[i].dev = tps->dev;
irq_data[i].type = irq_type;
- tps65219_get_rdev_by_name(irq_type->regulator_name, rdevtbl, rdev);
+ tps65219_get_rdev_by_name(irq_type->regulator_name, rdevtbl, &rdev);
if (IS_ERR(rdev)) {
dev_err(tps->dev, "Failed to get rdev for %s\n",
irq_type->regulator_name);
--
2.34.1