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authorJean Pihet <j-pihet@ti.com>2012-10-04 18:47:11 +0200
committerKevin Hilman <khilman@ti.com>2012-10-15 15:22:24 -0700
commit98aed08e16c5f18d0c31fc07127bc163ccd0d04c (patch)
treea773c60cbfb39cd1b57fb2ff2d5eb7c5c157df84 /drivers/power/avs
parent1bef60cc7c284fb3164a2b05e8c121ff0ef56a24 (diff)
downloadlinux-98aed08e16c5f18d0c31fc07127bc163ccd0d04c.tar.bz2
ARM: OMAP: SmartReflex: pass device dependent data via platform data
Remove the device dependent code (ex. cpu_is_xxx()) and settings from the driver code and instead pass them via the platform data. This allows a clean separation of the driver code and the platform code, as required by the move of the platform header files to include/linux/platform_data. Note about the smartreflex functional clocks: the smartreflex fclks are derived from sys_clk and have the same name as the main_clk from the hwmod entry, in order for the SmartReflex driver to request the fclk (using clk_get(dev, "fck")). Signed-off-by: Jean Pihet <j-pihet@ti.com> Signed-off-by: Kevin Hilman <khilman@ti.com>
Diffstat (limited to 'drivers/power/avs')
-rw-r--r--drivers/power/avs/smartreflex.c54
1 files changed, 17 insertions, 37 deletions
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 24768a27e1d8..4c4519e59be4 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -130,24 +130,21 @@ static irqreturn_t sr_interrupt(int irq, void *data)
static void sr_set_clk_length(struct omap_sr *sr)
{
- struct clk *sys_ck;
- u32 sys_clk_speed;
+ struct clk *fck;
+ u32 fclk_speed;
- if (cpu_is_omap34xx())
- sys_ck = clk_get(NULL, "sys_ck");
- else
- sys_ck = clk_get(NULL, "sys_clkin_ck");
+ fck = clk_get(&sr->pdev->dev, "fck");
- if (IS_ERR(sys_ck)) {
- dev_err(&sr->pdev->dev, "%s: unable to get sys clk\n",
- __func__);
+ if (IS_ERR(fck)) {
+ dev_err(&sr->pdev->dev, "%s: unable to get fck for device %s\n",
+ __func__, dev_name(&sr->pdev->dev));
return;
}
- sys_clk_speed = clk_get_rate(sys_ck);
- clk_put(sys_ck);
+ fclk_speed = clk_get_rate(fck);
+ clk_put(fck);
- switch (sys_clk_speed) {
+ switch (fclk_speed) {
case 12000000:
sr->clk_length = SRCLKLENGTH_12MHZ_SYSCLK;
break;
@@ -164,34 +161,12 @@ static void sr_set_clk_length(struct omap_sr *sr)
sr->clk_length = SRCLKLENGTH_38MHZ_SYSCLK;
break;
default:
- dev_err(&sr->pdev->dev, "%s: Invalid sysclk value: %d\n",
- __func__, sys_clk_speed);
+ dev_err(&sr->pdev->dev, "%s: Invalid fclk rate: %d\n",
+ __func__, fclk_speed);
break;
}
}
-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)) {
@@ -924,8 +899,14 @@ 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__);
@@ -937,7 +918,6 @@ static int __init omap_sr_probe(struct platform_device *pdev)
sr_info->irq = irq->start;
sr_set_clk_length(sr_info);
- sr_set_regfields(sr_info);
list_add(&sr_info->node, &sr_list);