ARM: davinci: PM: rework init, remove platform device

Remove fake platform device used for PM init.  Move pdata values which
are common across all current platforms into pm.c.

Also, since PM is only used on da8xx, remove davinci_pm_init() from
common init code, and only use in da850/omapl138 board files that are
currently creating the fake platform_device.

Suggested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
[nsekhar@ti.com: subject line adjustment]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

1 files changed, 41 insertions, 27 deletions

diff --git a/arch/arm/mach-davinci/pm.c b/arch/arm/mach-davinci/pm.c
index 8929569b1f8a..4392c4ed0183 100644
--- a/arch/arm/mach-davinci/pm.c
+++ b/arch/arm/mach-davinci/pm.c
@@ -21,15 +21,24 @@
 
 #include <mach/common.h>
 #include <mach/da8xx.h>
-#include "sram.h"
+#include <mach/mux.h>
 #include <mach/pm.h>
 
 #include "clock.h"
+#include "psc.h"
+#include "sram.h"
 
+#define DA850_PLL1_BASE		0x01e1a000
 #define DEEPSLEEP_SLEEPCOUNT_MASK	0xFFFF
+#define DEEPSLEEP_SLEEPCOUNT		128
 
 static void (*davinci_sram_suspend) (struct davinci_pm_config *);
-static struct davinci_pm_config *pdata;
+static struct davinci_pm_config pm_config = {
+	.sleepcount = DEEPSLEEP_SLEEPCOUNT,
+	.ddrpsc_num = DA8XX_LPSC1_EMIF3C,
+};
+
+static struct davinci_pm_config *pdata = &pm_config;
 
 static void davinci_sram_push(void *dest, void *src, unsigned int size)
 {
@@ -117,17 +126,36 @@ static const struct platform_suspend_ops davinci_pm_ops = {
 	.valid		= suspend_valid_only_mem,
 };
 
-static int __init davinci_pm_probe(struct platform_device *pdev)
+int __init davinci_pm_init(void)
 {
-	pdata = pdev->dev.platform_data;
-	if (!pdata) {
-		dev_err(&pdev->dev, "cannot get platform data\n");
-		return -ENOENT;
+	int ret;
+
+	ret = davinci_cfg_reg(DA850_RTC_ALARM);
+	if (ret)
+		return ret;
+
+	pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr();
+	pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG);
+
+	pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K);
+	if (!pdata->cpupll_reg_base)
+		return -ENOMEM;
+
+	pdata->ddrpll_reg_base = ioremap(DA850_PLL1_BASE, SZ_4K);
+	if (!pdata->ddrpll_reg_base) {
+		ret = -ENOMEM;
+		goto no_ddrpll_mem;
+	}
+
+	pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K);
+	if (!pdata->ddrpsc_reg_base) {
+		ret = -ENOMEM;
+		goto no_ddrpsc_mem;
 	}
 
 	davinci_sram_suspend = sram_alloc(davinci_cpu_suspend_sz, NULL);
 	if (!davinci_sram_suspend) {
-		dev_err(&pdev->dev, "cannot allocate SRAM memory\n");
+		pr_err("PM: cannot allocate SRAM memory\n");
 		return -ENOMEM;
 	}
 
@@ -136,23 +164,9 @@ static int __init davinci_pm_probe(struct platform_device *pdev)
 
 	suspend_set_ops(&davinci_pm_ops);
 
-	return 0;
-}
-
-static int __exit davinci_pm_remove(struct platform_device *pdev)
-{
-	sram_free(davinci_sram_suspend, davinci_cpu_suspend_sz);
-	return 0;
-}
-
-static struct platform_driver davinci_pm_driver = {
-	.driver = {
-		.name	 = "pm-davinci",
-	},
-	.remove = __exit_p(davinci_pm_remove),
-};
-
-int __init davinci_pm_init(void)
-{
-	return platform_driver_probe(&davinci_pm_driver, davinci_pm_probe);
+no_ddrpsc_mem:
+	iounmap(pdata->ddrpll_reg_base);
+no_ddrpll_mem:
+	iounmap(pdata->cpupll_reg_base);
+	return ret;
 }