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Add support for DYTC MMC_GET BIOS API.

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The BIOS team have added a new API that allows us to retrieve the
current performance profile without having to disable/enable CQL
mode. Adding the changes to use this API.

Tested on P15 and X1C8

Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20210406233203.232860-1-markpearson@lenovo.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Mark Pearson 2021-04-06 19:32:03 -04:00 committed by Hans de Goede
parent 8145476fc7
commit 7a47f86bba
1 changed files with 21 additions and 2 deletions
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21
drivers/platform/x86/thinkpad_acpi.c
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@ -10073,6 +10073,7 @@ static struct ibm_struct proxsensor_driver_data = {
*/
#define DYTC_CMD_SET 1 /* To enable/disable IC function mode */
#define DYTC_CMD_MMC_GET 8 /* To get current MMC function and mode */
#define DYTC_CMD_RESET 0x1ff /* To reset back to default */
#define DYTC_GET_FUNCTION_BIT 8 /* Bits 8-11 - function setting */
@ -10089,6 +10090,10 @@ static struct ibm_struct proxsensor_driver_data = {
#define DYTC_MODE_PERFORM 2 /* High power mode aka performance */
#define DYTC_MODE_LOWPOWER 3 /* Low power mode */
#define DYTC_MODE_BALANCE 0xF /* Default mode aka balanced */
#define DYTC_MODE_MMC_BALANCE 0 /* Default mode from MMC_GET, aka balanced */
#define DYTC_ERR_MASK 0xF /* Bits 0-3 in cmd result are the error result */
#define DYTC_ERR_SUCCESS 1 /* CMD completed successful */
#define DYTC_SET_COMMAND(function, mode, on) \
(DYTC_CMD_SET | (function) << DYTC_SET_FUNCTION_BIT | \
@ -10103,6 +10108,7 @@ static bool dytc_profile_available;
static enum platform_profile_option dytc_current_profile;
static atomic_t dytc_ignore_event = ATOMIC_INIT(0);
static DEFINE_MUTEX(dytc_mutex);
static bool dytc_mmc_get_available;
static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *profile)
{
@ -10111,6 +10117,7 @@ static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *p
*profile = PLATFORM_PROFILE_LOW_POWER;
break;
case DYTC_MODE_BALANCE:
case DYTC_MODE_MMC_BALANCE:
*profile = PLATFORM_PROFILE_BALANCED;
break;
case DYTC_MODE_PERFORM:
@ -10188,7 +10195,6 @@ static int dytc_cql_command(int command, int *output)
if (err)
return err;
}
return cmd_err;
}
@ -10245,6 +10251,9 @@ static void dytc_profile_refresh(void)
int perfmode;
mutex_lock(&dytc_mutex);
if (dytc_mmc_get_available)
err = dytc_command(DYTC_CMD_MMC_GET, &output);
else
err = dytc_cql_command(DYTC_CMD_GET, &output);
mutex_unlock(&dytc_mutex);
if (err)
@ -10294,6 +10303,16 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
if (dytc_version >= 5) {
dbg_printk(TPACPI_DBG_INIT,
"DYTC version %d: thermal mode available\n", dytc_version);
/*
* Check if MMC_GET functionality available
* Version > 6 and return success from MMC_GET command
*/
dytc_mmc_get_available = false;
if (dytc_version >= 6) {
err = dytc_command(DYTC_CMD_MMC_GET, &output);
if (!err && ((output & DYTC_ERR_MASK) == DYTC_ERR_SUCCESS))
dytc_mmc_get_available = true;
}
/* Create platform_profile structure and register */
err = platform_profile_register(&dytc_profile);
/*