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-rw-r--r--drivers/acpi/acpi_apd.c4
-rw-r--r--drivers/acpi/acpi_lpss.c14
-rw-r--r--drivers/acpi/acpi_watchdog.c7
-rw-r--r--drivers/acpi/acpica/nsxfeval.c10
-rw-r--r--drivers/acpi/ec.c17
-rw-r--r--drivers/acpi/internal.h1
-rw-r--r--drivers/acpi/property.c2
-rw-r--r--drivers/acpi/scan.c1
-rw-r--r--drivers/acpi/spcr.c36
9 files changed, 71 insertions, 21 deletions
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c
index fc6c416f8724..d5999eb41c00 100644
--- a/drivers/acpi/acpi_apd.c
+++ b/drivers/acpi/acpi_apd.c
@@ -180,8 +180,8 @@ static const struct acpi_device_id acpi_apd_device_ids[] = {
{ "APMC0D0F", APD_ADDR(xgene_i2c_desc) },
{ "BRCM900D", APD_ADDR(vulcan_spi_desc) },
{ "CAV900D", APD_ADDR(vulcan_spi_desc) },
- { "HISI0A21", APD_ADDR(hip07_i2c_desc) },
- { "HISI0A22", APD_ADDR(hip08_i2c_desc) },
+ { "HISI02A1", APD_ADDR(hip07_i2c_desc) },
+ { "HISI02A2", APD_ADDR(hip08_i2c_desc) },
#endif
{ }
};
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index e51a1e98e62f..f88caf5aab76 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -85,6 +85,7 @@ static const struct lpss_device_desc lpss_dma_desc = {
};
struct lpss_private_data {
+ struct acpi_device *adev;
void __iomem *mmio_base;
resource_size_t mmio_size;
unsigned int fixed_clk_rate;
@@ -155,6 +156,12 @@ static struct pwm_lookup byt_pwm_lookup[] = {
static void byt_pwm_setup(struct lpss_private_data *pdata)
{
+ struct acpi_device *adev = pdata->adev;
+
+ /* Only call pwm_add_table for the first PWM controller */
+ if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+ return;
+
if (!acpi_dev_present("INT33FD", NULL, -1))
pwm_add_table(byt_pwm_lookup, ARRAY_SIZE(byt_pwm_lookup));
}
@@ -180,6 +187,12 @@ static struct pwm_lookup bsw_pwm_lookup[] = {
static void bsw_pwm_setup(struct lpss_private_data *pdata)
{
+ struct acpi_device *adev = pdata->adev;
+
+ /* Only call pwm_add_table for the first PWM controller */
+ if (!adev->pnp.unique_id || strcmp(adev->pnp.unique_id, "1"))
+ return;
+
pwm_add_table(bsw_pwm_lookup, ARRAY_SIZE(bsw_pwm_lookup));
}
@@ -456,6 +469,7 @@ static int acpi_lpss_create_device(struct acpi_device *adev,
goto err_out;
}
+ pdata->adev = adev;
pdata->dev_desc = dev_desc;
if (dev_desc->setup)
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index 8c4e0a18460a..bf22c29d2517 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -86,7 +86,12 @@ void __init acpi_watchdog_init(void)
found = false;
resource_list_for_each_entry(rentry, &resource_list) {
- if (resource_contains(rentry->res, &res)) {
+ if (rentry->res->flags == res.flags &&
+ resource_overlaps(rentry->res, &res)) {
+ if (res.start < rentry->res->start)
+ rentry->res->start = res.start;
+ if (res.end > rentry->res->end)
+ rentry->res->end = res.end;
found = true;
break;
}
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index 538c61677c10..783f4c838aee 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -100,9 +100,13 @@ acpi_evaluate_object_typed(acpi_handle handle,
free_buffer_on_error = TRUE;
}
- status = acpi_get_handle(handle, pathname, &target_handle);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
+ if (pathname) {
+ status = acpi_get_handle(handle, pathname, &target_handle);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ } else {
+ target_handle = handle;
}
full_pathname = acpi_ns_get_external_pathname(target_handle);
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 62068a5e814f..ae3d6d152633 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1741,7 +1741,7 @@ error:
* functioning ECDT EC first in order to handle the events.
* https://bugzilla.kernel.org/show_bug.cgi?id=115021
*/
-int __init acpi_ec_ecdt_start(void)
+static int __init acpi_ec_ecdt_start(void)
{
acpi_handle handle;
@@ -2003,20 +2003,17 @@ static inline void acpi_ec_query_exit(void)
int __init acpi_ec_init(void)
{
int result;
+ int ecdt_fail, dsdt_fail;
/* register workqueue for _Qxx evaluations */
result = acpi_ec_query_init();
if (result)
- goto err_exit;
- /* Now register the driver for the EC */
- result = acpi_bus_register_driver(&acpi_ec_driver);
- if (result)
- goto err_exit;
+ return result;
-err_exit:
- if (result)
- acpi_ec_query_exit();
- return result;
+ /* Drivers must be started after acpi_ec_query_init() */
+ ecdt_fail = acpi_ec_ecdt_start();
+ dsdt_fail = acpi_bus_register_driver(&acpi_ec_driver);
+ return ecdt_fail && dsdt_fail ? -ENODEV : 0;
}
/* EC driver currently not unloadable */
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 58dd7ab3c653..3f5af4d7a739 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -185,7 +185,6 @@ typedef int (*acpi_ec_query_func) (void *data);
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_ec_dsdt_probe(void);
-int acpi_ec_ecdt_start(void);
void acpi_ec_block_transactions(void);
void acpi_ec_unblock_transactions(void);
int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 917c789f953d..476a52c60cf3 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -1047,7 +1047,7 @@ static struct fwnode_handle *acpi_graph_get_child_prop_value(
fwnode_for_each_child_node(fwnode, child) {
u32 nr;
- if (!fwnode_property_read_u32(fwnode, prop_name, &nr))
+ if (fwnode_property_read_u32(child, prop_name, &nr))
continue;
if (val == nr)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 33897298f03e..70fd5502c284 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2084,7 +2084,6 @@ int __init acpi_scan_init(void)
acpi_gpe_apply_masked_gpes();
acpi_update_all_gpes();
- acpi_ec_ecdt_start();
acpi_scan_initialized = true;
diff --git a/drivers/acpi/spcr.c b/drivers/acpi/spcr.c
index 4ac3e06b41d8..98aa8c808a33 100644
--- a/drivers/acpi/spcr.c
+++ b/drivers/acpi/spcr.c
@@ -17,6 +17,16 @@
#include <linux/serial_core.h>
/*
+ * Erratum 44 for QDF2432v1 and QDF2400v1 SoCs describes the BUSY bit as
+ * occasionally getting stuck as 1. To avoid the potential for a hang, check
+ * TXFE == 0 instead of BUSY == 1. This may not be suitable for all UART
+ * implementations, so only do so if an affected platform is detected in
+ * parse_spcr().
+ */
+bool qdf2400_e44_present;
+EXPORT_SYMBOL(qdf2400_e44_present);
+
+/*
* Some Qualcomm Datacenter Technologies SoCs have a defective UART BUSY bit.
* Detect them by examining the OEM fields in the SPCR header, similiar to PCI
* quirk detection in pci_mcfg.c.
@@ -147,8 +157,30 @@ int __init parse_spcr(bool earlycon)
goto done;
}
- if (qdf2400_erratum_44_present(&table->header))
- uart = "qdf2400_e44";
+ /*
+ * If the E44 erratum is required, then we need to tell the pl011
+ * driver to implement the work-around.
+ *
+ * The global variable is used by the probe function when it
+ * creates the UARTs, whether or not they're used as a console.
+ *
+ * If the user specifies "traditional" earlycon, the qdf2400_e44
+ * console name matches the EARLYCON_DECLARE() statement, and
+ * SPCR is not used. Parameter "earlycon" is false.
+ *
+ * If the user specifies "SPCR" earlycon, then we need to update
+ * the console name so that it also says "qdf2400_e44". Parameter
+ * "earlycon" is true.
+ *
+ * For consistency, if we change the console name, then we do it
+ * for everyone, not just earlycon.
+ */
+ if (qdf2400_erratum_44_present(&table->header)) {
+ qdf2400_e44_present = true;
+ if (earlycon)
+ uart = "qdf2400_e44";
+ }
+
if (xgene_8250_erratum_present(table))
iotype = "mmio32";
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