Diff

Index: kernel-source-rx-34-2.6.21.0/arch/arm/mach-omap2/board-n800-dvfs.c===================================================================--- kernel-source-rx-34-2.6.21.0.orig/arch/arm/mach-omap2/board-n800-dvfs.c	2008-03-01 14:24:49.000000000 +0100+++ kernel-source-rx-34-2.6.21.0/arch/arm/mach-omap2/board-n800-dvfs.c	2008-03-01 14:39:24.000000000 +0100@@ -41,11 +41,12 @@ 	OP_3, 	NUM_OP, 	DEFAULT_OP = OP_1,-	OP_DSP_H   = OP_1, 	OP_CPU_H   = OP_0, 	OP_CPU_ONDEMAND = 255, }; +static unsigned int op_dsp_h = OP_1;+ static unsigned int op_list[NUM_OP][NUM_OP_PARMS] = { 	[OP_0] = { 		[_54M_SRC_CLK_KHZ]	=  54000,@@ -177,9 +178,9 @@ 	}  	if (op_policy.task)-		new_op = OP_DSP_H;+		new_op = op_dsp_h; 	else if (op_policy.cam)-		new_op = OP_DSP_H;+		new_op = op_dsp_h; 	else if (op_policy.path) 		new_op = OP_CPU_H; 	else@@ -266,8 +267,47 @@        .notifier_call = op_policy_notifier, }; +static ssize_t op_dsp_show(struct subsystem * subsys, char *buf)+{+	return sprintf(buf, "%u\n", op_dsp_h);+}++static ssize_t op_dsp_store(struct subsystem * subsys,+			      const char * buf, size_t n)+{+	unsigned value;++	if (sscanf(buf, "%u", &value) != 1 || (value > OP_1)) {+		printk(KERN_ERR "OP: Invalid index\n");+		return -EINVAL;+	}++	mutex_lock(&op_policy.lock);+	if (op_policy.task) {+		n = -EBUSY;+	} else {+		op_dsp_h = value;+	}+	mutex_unlock(&op_policy.lock);++	return n;+}++static struct subsys_attribute op_dsp_attr = {+	.attr   = {+		.name = __stringify(op_dsp),+		.mode = 0644,+	},+	.show   = op_dsp_show,+	.store  = op_dsp_store,+};++extern struct subsystem power_subsys;+ int __init n800_dvfs_init(void) {+	int ret;+ 	mutex_init(&op_policy.lock); 	op_policy.dvfs_wq = create_workqueue("dvfs"); 	INIT_WORK(&op_policy.update_policy_work, update_policy_work);@@ -278,5 +318,10 @@ 			      NUM_OP, DEFAULT_OP); 	cpufreq_register_notifier(&dsp_state_change_block, 				  CPUFREQ_POLICY_NOTIFIER);++	ret = subsys_create_file(&power_subsys, &op_dsp_attr);+	if (ret)+		printk(KERN_ERR "subsys_create_file failed: %d\n", ret);+ 	return 0; }