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PM / AVS: SmartReflex: use omap_sr * for enable/disable interface

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SmartReflex driver interface is natively divided to two parts:

- external SmartReflex interface
- interface between SmartReflex driver and SmartReflex Class

Functions which belong to AVS class interface can use
struct omap_sr* instead of struct voltatedomain*, to provide a
direct connection between SR driver and SR class. This allows
us to optimize and not do additional lookups where none is
required.

sr_enable() and sr_disable() are interface functions between
SR driver and SR class. They are typically used by Class driver
to enable/disable SmartReflex hardware module.
Now they take struct omap_sr* as input parameter.

Signed-off-by: Andrii Tseglytskyi <andrii.tseglytskyi@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
This commit is contained in:
Andrii Tseglytskyi 2013-05-27 14:09:24 +03:00 committed by Kevin Hilman
parent 6c80573415
commit 299066bb37
3 changed files with 15 additions and 16 deletions
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4
arch/arm/mach-omap2/smartreflex-class3.c
View File

@ -26,14 +26,14 @@ static int sr_class3_enable(struct omap_sr *sr)
}
omap_vp_enable(sr->voltdm);
return sr_enable(sr->voltdm, volt);
return sr_enable(sr, volt);
}
static int sr_class3_disable(struct omap_sr *sr, int is_volt_reset)
{
sr_disable_errgen(sr);
omap_vp_disable(sr->voltdm);
sr_disable(sr->voltdm);
sr_disable(sr);
if (is_volt_reset)
voltdm_reset(sr->voltdm);

23
drivers/power/avs/smartreflex.c
View File

@ -552,7 +552,7 @@ int sr_configure_minmax(struct omap_sr *sr)
/**
* sr_enable() - Enables the smartreflex module.
* @voltdm: VDD pointer to which the SR module to be configured belongs to.
* @sr: pointer to which the SR module to be configured belongs to.
* @volt: The voltage at which the Voltage domain associated with
* the smartreflex module is operating at.
* This is required only to program the correct Ntarget value.
@ -561,16 +561,16 @@ int sr_configure_minmax(struct omap_sr *sr)
* enable a smartreflex module. Returns 0 on success. Returns error
* value if the voltage passed is wrong or if ntarget value is wrong.
*/
int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
int sr_enable(struct omap_sr *sr, unsigned long volt)
{
struct omap_volt_data *volt_data;
struct omap_sr *sr = _sr_lookup(voltdm);
struct omap_sr_nvalue_table *nvalue_row;
int ret;
if (IS_ERR(sr)) {
pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
return PTR_ERR(sr);
if (!sr) {
pr_warn("%s: NULL omap_sr from %pF\n", __func__,
(void *)_RET_IP_);
return -EINVAL;
}
volt_data = omap_voltage_get_voltdata(sr->voltdm, volt);
@ -612,17 +612,16 @@ int sr_enable(struct voltagedomain *voltdm, unsigned long volt)
/**
* sr_disable() - Disables the smartreflex module.
* @voltdm: VDD pointer to which the SR module to be configured belongs to.
* @sr: pointer to which the SR module to be configured belongs to.
*
* This API is to be called from the smartreflex class driver to
* disable a smartreflex module.
*/
void sr_disable(struct voltagedomain *voltdm)
void sr_disable(struct omap_sr *sr)
{
struct omap_sr *sr = _sr_lookup(voltdm);
if (IS_ERR(sr)) {
pr_warning("%s: omap_sr struct for voltdm not found\n", __func__);
if (!sr) {
pr_warn("%s: NULL omap_sr from %pF\n", __func__,
(void *)_RET_IP_);
return;
}

4
include/linux/power/smartreflex.h
View File

@ -299,8 +299,8 @@ void omap_sr_disable_reset_volt(struct voltagedomain *voltdm);
void omap_sr_register_pmic(struct omap_sr_pmic_data *pmic_data);
/* Smartreflex driver hooks to be called from Smartreflex class driver */
int sr_enable(struct voltagedomain *voltdm, unsigned long volt);
void sr_disable(struct voltagedomain *voltdm);
int sr_enable(struct omap_sr *sr, unsigned long volt);
void sr_disable(struct omap_sr *sr);
int sr_configure_errgen(struct omap_sr *sr);
int sr_disable_errgen(struct omap_sr *sr);
int sr_configure_minmax(struct omap_sr *sr);