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[PATCHv2,13/13] dmtimer: hwmod: OMAP1: device registration

Message ID 1281800001-14960-1-git-send-email-tarun.kanti@ti.com (mailing list archive)
State Changes Requested
Delegated to: Kevin Hilman
Headers show

Commit Message

Tarun Kanti DebBarma Aug. 14, 2010, 3:33 p.m. UTC
None
diff mbox

Patch

diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
index 9a304d8..0001659
--- a/arch/arm/mach-omap1/Makefile
+++ b/arch/arm/mach-omap1/Makefile
@@ -4,7 +4,7 @@ 
 
 # Common support
 obj-y := io.o id.o sram.o irq.o mux.o flash.o serial.o devices.o
-obj-y += clock.o clock_data.o opp_data.o
+obj-y += clock.o clock_data.o opp_data.o dmtimer.o
 
 obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
 
diff --git a/arch/arm/mach-omap1/dmtimer.c b/arch/arm/mach-omap1/dmtimer.c
new file mode 100755
index 0000000..b06d096
--- /dev/null
+++ b/arch/arm/mach-omap1/dmtimer.c
@@ -0,0 +1,146 @@ 
+/**
+ * OMAP1 Dual-Mode Timers
+ *
+ * Copyright (C) 2010 Texas Instruments, Inc.
+ * Thara Gopinath <thara@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <mach/irqs.h>
+#include <plat/dmtimer.h>
+
+#define OMAP1610_GPTIMER1_BASE		0xfffb1400
+#define OMAP1610_GPTIMER2_BASE          0xfffb1c00
+#define OMAP1610_GPTIMER3_BASE          0xfffb2400
+#define OMAP1610_GPTIMER4_BASE          0xfffb2c00
+#define OMAP1610_GPTIMER5_BASE          0xfffb3400
+#define OMAP1610_GPTIMER6_BASE          0xfffb3c00
+#define OMAP1610_GPTIMER7_BASE          0xfffb7400
+#define OMAP1610_GPTIMER8_BASE          0xfffbd400
+
+#define OMAP1_DM_TIMER_COUNT	8
+
+static int omap1_dm_timer_set_clk(struct platform_device *pdev,
+				int source)
+{
+	int n = (pdev->id) << 1;
+	u32 l;
+
+	l = omap_readl(MOD_CONF_CTRL_1) & ~(0x03 << n);
+	l |= source << n;
+	omap_writel(l, MOD_CONF_CTRL_1);
+
+	return 0;
+}
+
+int __init omap1_dm_timer_init(void)
+{
+	int i;
+
+	if (!cpu_is_omap16xx())
+		return 0;
+
+	for (i = 0; i < OMAP1_DM_TIMER_COUNT; i++) {
+		struct platform_device *pdev;
+		struct omap_dmtimer_platform_data *pdata;
+		struct resource res[2];
+		u32 base, irq;
+		int ret;
+
+		switch (i) {
+		case 0:
+			base = OMAP1610_GPTIMER1_BASE;
+			irq = INT_1610_GPTIMER1;
+			break;
+		case 1:
+			base = OMAP1610_GPTIMER2_BASE;
+			irq = INT_1610_GPTIMER2;
+			break;
+		case 2:
+			base = OMAP1610_GPTIMER3_BASE;
+			irq = INT_1610_GPTIMER3;
+			break;
+		case 3:
+			base = OMAP1610_GPTIMER4_BASE;
+			irq = INT_1610_GPTIMER4;
+			break;
+		case 4:
+			base = OMAP1610_GPTIMER5_BASE;
+			irq = INT_1610_GPTIMER5;
+			break;
+		case 5:
+			base = OMAP1610_GPTIMER6_BASE;
+			irq = INT_1610_GPTIMER6;
+			break;
+		case 6:
+			base = OMAP1610_GPTIMER7_BASE;
+			irq = INT_1610_GPTIMER7;
+			break;
+		case 7:
+			base = OMAP1610_GPTIMER8_BASE;
+			irq = INT_1610_GPTIMER8;
+			break;
+		default:
+			/* Should never reach here */
+			return  -EINVAL;
+		}
+
+		pdev = platform_device_alloc("dmtimer", i);
+		if (!pdev) {
+			pr_err("%s: Unable to device alloc for dmtimer%d\n",
+				__func__, i);
+			return -ENOMEM;
+		}
+
+		memset(res, 0, 2 * sizeof(struct resource));
+		res[0].start = base;
+		res[0].end = base + 0xff;
+		res[0].flags = IORESOURCE_MEM;
+		res[1].start = res[1].end = irq;
+		res[1].flags = IORESOURCE_IRQ;
+		ret = platform_device_add_resources(pdev, res,
+				ARRAY_SIZE(res));
+		if (ret) {
+			pr_err("%s: Unable to add resources for %s%d\n",
+				__func__, pdev->name, pdev->id);
+			goto exit_device_put;
+		}
+
+		pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+		if (!pdata) {
+			pr_err("%s: Unable to allocate pdata for %s%d\n",
+				__func__, pdev->name, pdev->id);
+			ret = -ENOMEM;
+			goto exit_device_put;
+		}
+
+		pdata->omap_dm_set_source_clk = omap1_dm_timer_set_clk;
+		ret = platform_device_add_data(pdev, pdata, sizeof(*pdata));
+		if (ret) {
+			pr_err("%s: Unable to add platform data for %s%d\n",
+				__func__, pdev->name, pdev->id);
+			goto exit_release_pdata;
+		}
+		ret = platform_device_add(pdev);
+		if (ret) {
+			pr_err("%s: Unable to add platform device for %s%d\n",
+				__func__, pdev->name, pdev->id);
+			goto exit_release_pdata;
+		}
+		continue;
+exit_release_pdata:
+		kfree(pdata);
+exit_device_put:
+		platform_device_put(pdev);
+		return ret;
+	}
+	return 0;
+}
+arch_initcall(omap1_dm_timer_init);
diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 20cfbcc..6b8ab9b
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -183,9 +183,6 @@  static __init void omap_init_32k_timer(void)
  */
 static void __init omap_timer_init(void)
 {
-#ifdef CONFIG_OMAP_DM_TIMER
-	omap_dm_timer_init();
-#endif
 	omap_init_32k_timer();
 }