diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-03-06 00:17:55 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2020-03-14 11:04:17 +0100 |
| commit | b1e14999a4b7a74cc851c17f53fb5fce27a43ab8 (patch) | |
| tree | fb4497f082a645ef13d46a1a5898f53cb07ac5ec /drivers/acpi | |
| parent | 65a691f5f8f0bb63d6a82eec7b0ffd193d8d8a5f (diff) | |
| download | linux-b1e14999a4b7a74cc851c17f53fb5fce27a43ab8.tar.bz2 | |
ACPI: EC: Eliminate EC_FLAGS_QUERY_HANDSHAKE
The EC_FLAGS_QUERY_HANDSHAKE switch is never set in the current
code (the only function setting it is defined under #if 0) and
has no effect whatever, so eliminate it and drop the code
depending on it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/ec.c | 35 |
1 files changed, 3 insertions, 32 deletions
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 8025a070335e..9c7410588a27 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -182,7 +182,6 @@ static bool boot_ec_is_ecdt = false; static struct workqueue_struct *ec_wq; static struct workqueue_struct *ec_query_wq; -static int EC_FLAGS_QUERY_HANDSHAKE; /* Needs QR_EC issued when SCI_EVT set */ static int EC_FLAGS_CORRECT_ECDT; /* Needs ECDT port address correction */ static int EC_FLAGS_IGNORE_DSDT_GPE; /* Needs ECDT GPE as correction setting */ static int EC_FLAGS_CLEAR_ON_RESUME; /* Needs acpi_ec_clear() on boot/resume */ @@ -690,21 +689,9 @@ static void advance_transaction(struct acpi_ec *ec) wakeup = true; } goto out; - } else { - if (EC_FLAGS_QUERY_HANDSHAKE && - !(status & ACPI_EC_FLAG_SCI) && - (t->command == ACPI_EC_COMMAND_QUERY)) { - ec_transaction_transition(ec, ACPI_EC_COMMAND_POLL); - t->rdata[t->ri++] = 0x00; - ec_transaction_transition(ec, ACPI_EC_COMMAND_COMPLETE); - ec_dbg_evt("Command(%s) completed by software", - acpi_ec_cmd_string(ACPI_EC_COMMAND_QUERY)); - wakeup = true; - } else if ((status & ACPI_EC_FLAG_IBF) == 0) { - acpi_ec_write_cmd(ec, t->command); - ec_transaction_transition(ec, ACPI_EC_COMMAND_POLL); - } else - goto err; + } else if (!(status & ACPI_EC_FLAG_IBF)) { + acpi_ec_write_cmd(ec, t->command); + ec_transaction_transition(ec, ACPI_EC_COMMAND_POLL); goto out; } err: @@ -1805,22 +1792,6 @@ static void __init acpi_ec_ecdt_start(void) acpi_bus_register_early_device(ACPI_BUS_TYPE_ECDT_EC); } -#if 0 -/* - * Some EC firmware variations refuses to respond QR_EC when SCI_EVT is not - * set, for which case, we complete the QR_EC without issuing it to the - * firmware. - * https://bugzilla.kernel.org/show_bug.cgi?id=82611 - * https://bugzilla.kernel.org/show_bug.cgi?id=97381 - */ -static int ec_flag_query_handshake(const struct dmi_system_id *id) -{ - pr_debug("Detected the EC firmware requiring QR_EC issued when SCI_EVT set\n"); - EC_FLAGS_QUERY_HANDSHAKE = 1; - return 0; -} -#endif - /* * On some hardware it is necessary to clear events accumulated by the EC during * sleep. These ECs stop reporting GPEs until they are manually polled, if too |