Re: [PATCH 1/4] platform/x86: thinkpad-acpi: profile capabilities as integer

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Hi,

On 6/3/22 19:02, Mark Pearson wrote:
> Currently the active mode (PSC/MMC) is stored in an enum and queried
> throughout the driver.
> 
> Other driver changes will enumerate additional submodes that are relevant
> to be tracked, so instead track PSC/MMC in a single integer variable.
> 
> Co-developed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
> Signed-off-by: Mark Pearson <markpearson@xxxxxxxxxx>

Thank you for your patch-series, I've applied the series to my
review-hans branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.

Regards,

Hans


> ---
>  drivers/platform/x86/thinkpad_acpi.c | 45 +++++++++++-----------------
>  1 file changed, 18 insertions(+), 27 deletions(-)
> 
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
> index e6cb4a14cdd4..5d1e0a3a5c1e 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/thinkpad_acpi.c
> @@ -10299,21 +10299,15 @@ static struct ibm_struct proxsensor_driver_data = {
>  #define DYTC_DISABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_MMC_BALANCE, 0)
>  #define DYTC_ENABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_MMC_BALANCE, 1)
>  
> -enum dytc_profile_funcmode {
> -	DYTC_FUNCMODE_NONE = 0,
> -	DYTC_FUNCMODE_MMC,
> -	DYTC_FUNCMODE_PSC,
> -};
> -
> -static enum dytc_profile_funcmode 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 int dytc_capabilities;
>  static bool dytc_mmc_get_available;
>  
>  static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *profile)
>  {
> -	if (dytc_profile_available == DYTC_FUNCMODE_MMC) {
> +	if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
>  		switch (dytcmode) {
>  		case DYTC_MODE_MMC_LOWPOWER:
>  			*profile = PLATFORM_PROFILE_LOW_POWER;
> @@ -10330,7 +10324,7 @@ static int convert_dytc_to_profile(int dytcmode, enum platform_profile_option *p
>  		}
>  		return 0;
>  	}
> -	if (dytc_profile_available == DYTC_FUNCMODE_PSC) {
> +	if (dytc_capabilities & BIT(DYTC_FC_PSC)) {
>  		switch (dytcmode) {
>  		case DYTC_MODE_PSC_LOWPOWER:
>  			*profile = PLATFORM_PROFILE_LOW_POWER;
> @@ -10352,21 +10346,21 @@ static int convert_profile_to_dytc(enum platform_profile_option profile, int *pe
>  {
>  	switch (profile) {
>  	case PLATFORM_PROFILE_LOW_POWER:
> -		if (dytc_profile_available == DYTC_FUNCMODE_MMC)
> +		if (dytc_capabilities & BIT(DYTC_FC_MMC))
>  			*perfmode = DYTC_MODE_MMC_LOWPOWER;
> -		else if (dytc_profile_available == DYTC_FUNCMODE_PSC)
> +		else if (dytc_capabilities & BIT(DYTC_FC_PSC))
>  			*perfmode = DYTC_MODE_PSC_LOWPOWER;
>  		break;
>  	case PLATFORM_PROFILE_BALANCED:
> -		if (dytc_profile_available == DYTC_FUNCMODE_MMC)
> +		if (dytc_capabilities & BIT(DYTC_FC_MMC))
>  			*perfmode = DYTC_MODE_MMC_BALANCE;
> -		else if (dytc_profile_available == DYTC_FUNCMODE_PSC)
> +		else if (dytc_capabilities & BIT(DYTC_FC_PSC))
>  			*perfmode = DYTC_MODE_PSC_BALANCE;
>  		break;
>  	case PLATFORM_PROFILE_PERFORMANCE:
> -		if (dytc_profile_available == DYTC_FUNCMODE_MMC)
> +		if (dytc_capabilities & BIT(DYTC_FC_MMC))
>  			*perfmode = DYTC_MODE_MMC_PERFORM;
> -		else if (dytc_profile_available == DYTC_FUNCMODE_PSC)
> +		else if (dytc_capabilities & BIT(DYTC_FC_PSC))
>  			*perfmode = DYTC_MODE_PSC_PERFORM;
>  		break;
>  	default: /* Unknown profile */
> @@ -10445,7 +10439,7 @@ static int dytc_profile_set(struct platform_profile_handler *pprof,
>  	if (err)
>  		goto unlock;
>  
> -	if (dytc_profile_available == DYTC_FUNCMODE_MMC) {
> +	if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
>  		if (profile == PLATFORM_PROFILE_BALANCED) {
>  			/*
>  			 * To get back to balanced mode we need to issue a reset command.
> @@ -10464,7 +10458,7 @@ static int dytc_profile_set(struct platform_profile_handler *pprof,
>  				goto unlock;
>  		}
>  	}
> -	if (dytc_profile_available == DYTC_FUNCMODE_PSC) {
> +	if (dytc_capabilities & BIT(DYTC_FC_PSC)) {
>  		err = dytc_command(DYTC_SET_COMMAND(DYTC_FUNCTION_PSC, perfmode, 1), &output);
>  		if (err)
>  			goto unlock;
> @@ -10483,12 +10477,12 @@ static void dytc_profile_refresh(void)
>  	int perfmode;
>  
>  	mutex_lock(&dytc_mutex);
> -	if (dytc_profile_available == DYTC_FUNCMODE_MMC) {
> +	if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
>  		if (dytc_mmc_get_available)
>  			err = dytc_command(DYTC_CMD_MMC_GET, &output);
>  		else
>  			err = dytc_cql_command(DYTC_CMD_GET, &output);
> -	} else if (dytc_profile_available == DYTC_FUNCMODE_PSC)
> +	} else if (dytc_capabilities & BIT(DYTC_FC_PSC))
>  		err = dytc_command(DYTC_CMD_GET, &output);
>  
>  	mutex_unlock(&dytc_mutex);
> @@ -10517,7 +10511,6 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
>  	set_bit(PLATFORM_PROFILE_BALANCED, dytc_profile.choices);
>  	set_bit(PLATFORM_PROFILE_PERFORMANCE, dytc_profile.choices);
>  
> -	dytc_profile_available = DYTC_FUNCMODE_NONE;
>  	err = dytc_command(DYTC_CMD_QUERY, &output);
>  	if (err)
>  		return err;
> @@ -10530,13 +10523,12 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
>  		return -ENODEV;
>  
>  	/* Check what capabilities are supported */
> -	err = dytc_command(DYTC_CMD_FUNC_CAP, &output);
> +	err = dytc_command(DYTC_CMD_FUNC_CAP, &dytc_capabilities);
>  	if (err)
>  		return err;
>  
> -	if (output & BIT(DYTC_FC_MMC)) { /* MMC MODE */
> -		dytc_profile_available = DYTC_FUNCMODE_MMC;
> -
> +	if (dytc_capabilities & BIT(DYTC_FC_MMC)) { /* MMC MODE */
> +		pr_debug("MMC is supported\n");
>  		/*
>  		 * Check if MMC_GET functionality available
>  		 * Version > 6 and return success from MMC_GET command
> @@ -10547,8 +10539,8 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
>  			if (!err && ((output & DYTC_ERR_MASK) == DYTC_ERR_SUCCESS))
>  				dytc_mmc_get_available = true;
>  		}
> -	} else if (output & BIT(DYTC_FC_PSC)) { /* PSC MODE */
> -		dytc_profile_available = DYTC_FUNCMODE_PSC;
> +	} else if (dytc_capabilities & BIT(DYTC_FC_PSC)) { /* PSC MODE */
> +		pr_debug("PSC is supported\n");
>  	} else {
>  		dbg_printk(TPACPI_DBG_INIT, "No DYTC support available\n");
>  		return -ENODEV;
> @@ -10574,7 +10566,6 @@ static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
>  
>  static void dytc_profile_exit(void)
>  {
> -	dytc_profile_available = DYTC_FUNCMODE_NONE;
>  	platform_profile_remove();
>  }
>  




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