Remove the device dependent settings (cpu_is_xxx(), IP fck etc.)
from the driver code and pass them instead via the platform
data.
This allows a clean separation of the driver code and the platform
code.
Signed-off-by: Jean Pihet <j-pihet@xxxxxx>
---
arch/arm/mach-omap2/sr_device.c | 14 ++++++++++
drivers/power/avs/smartreflex.c | 51 +++++++++++++++---------------------
include/linux/power/smartreflex.h | 17 +++++++++++-
3 files changed, 50 insertions(+), 32 deletions(-)
diff --git a/arch/arm/mach-omap2/sr_device.c b/arch/arm/mach-omap2/sr_device.c
index d033a65..12d95c8 100644
--- a/arch/arm/mach-omap2/sr_device.c
+++ b/arch/arm/mach-omap2/sr_device.c
@@ -118,10 +118,24 @@ static int __init sr_dev_init(struct omap_hwmod *oh, void *user)
}
sr_data->name = oh->name;
+ sr_data->fck_name = oh->main_clk;
sr_data->ip_type = oh->class->rev;
sr_data->senn_mod = 0x1;
sr_data->senp_mod = 0x1;
+ if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
+ sr_data->err_weight = OMAP3430_SR_ERRWEIGHT;
+ sr_data->err_maxlimit = OMAP3430_SR_ERRMAXLIMIT;
+ sr_data->accum_data = OMAP3430_SR_ACCUMDATA;
+ if (!(strcmp(sr_data->name, "smartreflex_mpu_iva"))) {
+ sr_data->senn_avgweight = OMAP3430_SR1_SENNAVGWEIGHT;
+ sr_data->senp_avgweight = OMAP3430_SR1_SENPAVGWEIGHT;
+ } else {
+ sr_data->senn_avgweight = OMAP3430_SR2_SENNAVGWEIGHT;
+ sr_data->senp_avgweight = OMAP3430_SR2_SENPAVGWEIGHT;
+ }
+ }
+
sr_data->voltdm = voltdm_lookup(sr_dev_attr->sensor_voltdm_name);
if (IS_ERR(sr_data->voltdm)) {
pr_err("%s: Unable to get voltage domain pointer for VDD %s\n",
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 92f6728..f09e8df 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -131,14 +131,11 @@ static void sr_set_clk_length(struct omap_sr *sr)
struct clk *sys_ck;
u32 sys_clk_speed;
- if (cpu_is_omap34xx())
- sys_ck = clk_get(NULL, "sys_ck");
- else
- sys_ck = clk_get(NULL, "sys_clkin_ck");
+ sys_ck = clk_get(NULL, sr->fck_name);
if (IS_ERR(sys_ck)) {
- dev_err(&sr->pdev->dev, "%s: unable to get sys clk\n",
- __func__);
+ dev_err(&sr->pdev->dev, "%s: unable to get smartreflex fck %s\n",
+ __func__, sr->fck_name);
return;
}
@@ -168,28 +165,6 @@ static void sr_set_clk_length(struct omap_sr *sr)
}
}
-static void sr_set_regfields(struct omap_sr *sr)
-{
- /*
- * For time being these values are defined in smartreflex.h
- * and populated during init. May be they can be moved to board
- * file or pmic specific data structure. In that case these structure
- * fields will have to be populated using the pdata or pmic structure.
- */
- if (cpu_is_omap34xx() || cpu_is_omap44xx()) {
- sr->err_weight = OMAP3430_SR_ERRWEIGHT;
- sr->err_maxlimit = OMAP3430_SR_ERRMAXLIMIT;
- sr->accum_data = OMAP3430_SR_ACCUMDATA;
- if (!(strcmp(sr->name, "smartreflex_mpu_iva"))) {
- sr->senn_avgweight = OMAP3430_SR1_SENNAVGWEIGHT;
- sr->senp_avgweight = OMAP3430_SR1_SENPAVGWEIGHT;
- } else {
- sr->senn_avgweight = OMAP3430_SR2_SENNAVGWEIGHT;
- sr->senp_avgweight = OMAP3430_SR2_SENPAVGWEIGHT;
- }
- }
-}
-
static void sr_start_vddautocomp(struct omap_sr *sr)
{
if (!sr_class || !(sr_class->enable) || !(sr_class->configure)) {
@@ -915,6 +890,14 @@ static int __init omap_sr_probe(struct platform_device *pdev)
goto err_release_region;
}
+ sr_info->fck_name = kasprintf(GFP_KERNEL, "%s", pdata->fck_name);
+ if (!sr_info->fck_name) {
+ dev_err(&pdev->dev, "%s: Unable to alloc SR instance fck name\n",
+ __func__);
+ ret = -ENOMEM;
+ goto err_free_name;
+ }
+
sr_info->pdev = pdev;
sr_info->srid = pdev->id;
sr_info->voltdm = pdata->voltdm;
@@ -922,20 +905,25 @@ static int __init omap_sr_probe(struct platform_device *pdev)
sr_info->nvalue_count = pdata->nvalue_count;
sr_info->senn_mod = pdata->senn_mod;
sr_info->senp_mod = pdata->senp_mod;
+ sr_info->err_weight = pdata->err_weight;
+ sr_info->err_maxlimit = pdata->err_maxlimit;
+ sr_info->accum_data = pdata->accum_data;
+ sr_info->senn_avgweight = pdata->senn_avgweight;
+ sr_info->senp_avgweight = pdata->senp_avgweight;
sr_info->autocomp_active = false;
sr_info->ip_type = pdata->ip_type;
+
sr_info->base = ioremap(mem->start, resource_size(mem));
if (!sr_info->base) {
dev_err(&pdev->dev, "%s: ioremap fail\n", __func__);
ret = -ENOMEM;
- goto err_free_name;
+ goto err_free_fck_name;
}
if (irq)
sr_info->irq = irq->start;
sr_set_clk_length(sr_info);
- sr_set_regfields(sr_info);
list_add(&sr_info->node, &sr_list);
@@ -1014,6 +1002,8 @@ err_debugfs:
err_iounmap:
list_del(&sr_info->node);
iounmap(sr_info->base);
+err_free_fck_name:
+ kfree(sr_info->fck_name);
err_free_name:
kfree(sr_info->name);
err_release_region:
@@ -1049,6 +1039,7 @@ static int __devexit omap_sr_remove(struct platform_device *pdev)
list_del(&sr_info->node);
iounmap(sr_info->base);
+ kfree(sr_info->fck_name);
kfree(sr_info->name);
kfree(sr_info);
mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/include/linux/power/smartreflex.h b/include/linux/power/smartreflex.h
index 3101e62..7b16c3c 100644
--- a/include/linux/power/smartreflex.h
+++ b/include/linux/power/smartreflex.h
@@ -145,6 +145,7 @@
struct omap_sr {
char *name;
+ char *fck_name;
struct list_head node;
struct platform_device *pdev;
struct omap_sr_nvalue_table *nvalue_table;
@@ -259,9 +260,15 @@ struct omap_sr_nvalue_table {
* struct omap_sr_data - Smartreflex platform data.
*
* @name: instance name
+ * @fck_name: IP block fck name
* @ip_type: Smartreflex IP type.
- * @senp_mod: SENPENABLE value for the sr
- * @senn_mod: SENNENABLE value for sr
+ * @senp_mod: SENPENABLE value of the sr CONFIG register
+ * @senn_mod: SENNENABLE value for sr CONFIG register
+ * @err_weight ERRWEIGHT value of the sr ERRCONFIG register
+ * @err_maxlimit ERRMAXLIMIT value of the sr ERRCONFIG register
+ * @accum_data ACCUMDATA value of the sr CONFIG register
+ * @senn_avgweight SENNAVGWEIGHT value of the sr AVGWEIGHT register
+ * @senp_avgweight SENPAVGWEIGHT value of the sr AVGWEIGHT register
* @nvalue_count: Number of distinct nvalues in the nvalue table
* @enable_on_init: whether this sr module needs to enabled at
* boot up or not.
@@ -271,9 +278,15 @@ struct omap_sr_nvalue_table {
*/
struct omap_sr_data {
const char *name;
+ const char *fck_name;
int ip_type;
u32 senp_mod;
u32 senn_mod;
+ u32 err_weight;
+ u32 err_maxlimit;
+ u32 accum_data;
+ u32 senn_avgweight;
+ u32 senp_avgweight;
int nvalue_count;
bool enable_on_init;
struct omap_sr_nvalue_table *nvalue_table;
--
1.7.7.6
--
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