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authorAndrii Tseglytskyi <andrii.tseglytskyi@ti.com>2013-05-27 15:09:22 +0400
committerKevin Hilman <khilman@linaro.org>2013-06-10 21:46:17 +0400
commit3dfc35ffd938abe67f2559db6b517536a207df24 (patch)
treeed07745082e730cc958c558559c707f6300c191f /drivers/power
parent33da28246f8cba3f1ffbca9434622d93afcde013 (diff)
downloadlinux-3dfc35ffd938abe67f2559db6b517536a207df24.tar.xz
PM / AVS: SmartReflex: use omap_sr * for errgen interfaces
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_disable_errgen() and sr_configure_errgen() are interface functions between SR driver and SR class. They are typically used by Class driver to configure error generator module during SmartReflex enable/disable sequence. 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>
Diffstat (limited to 'drivers/power')
-rw-r--r--drivers/power/avs/smartreflex.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 002005ee48d2..fccb62743d19 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -342,9 +342,9 @@ static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
/* Public Functions */
/**
- * sr_configure_errgen() - Configures the smrtreflex to perform AVS using the
+ * sr_configure_errgen() - Configures the SmartReflex to perform AVS using the
* error generator module.
- * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @sr: SR module to be configured.
*
* This API is to be called from the smartreflex class driver to
* configure the error generator module inside the smartreflex module.
@@ -353,17 +353,17 @@ static struct omap_sr_nvalue_table *sr_retrieve_nvalue_row(
* SR CLASS 2 can choose between ERROR module and MINMAXAVG
* module. Returns 0 on success and error value in case of failure.
*/
-int sr_configure_errgen(struct voltagedomain *voltdm)
+int sr_configure_errgen(struct omap_sr *sr)
{
u32 sr_config, sr_errconfig, errconfig_offs;
u32 vpboundint_en, vpboundint_st;
u32 senp_en = 0, senn_en = 0;
u8 senp_shift, senn_shift;
- struct omap_sr *sr = _sr_lookup(voltdm);
- 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;
}
if (!sr->clk_length)
@@ -415,22 +415,22 @@ int sr_configure_errgen(struct voltagedomain *voltdm)
/**
* sr_disable_errgen() - Disables SmartReflex AVS module's errgen component
- * @voltdm: VDD pointer to which the SR module to be configured belongs to.
+ * @sr: SR module to be configured.
*
* This API is to be called from the smartreflex class driver to
* disable the error generator module inside the smartreflex module.
*
* Returns 0 on success and error value in case of failure.
*/
-int sr_disable_errgen(struct voltagedomain *voltdm)
+int sr_disable_errgen(struct omap_sr *sr)
{
u32 errconfig_offs;
u32 vpboundint_en, vpboundint_st;
- struct omap_sr *sr = _sr_lookup(voltdm);
- 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;
}
switch (sr->ip_type) {