#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/iopoll.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/module.h>
static void write_tcs_reg_sync(const struct rsc_drv *drv, int reg, int tcs_id,
u32 data)
{
+ u32 new_data;
+
writel(data, tcs_reg_addr(drv, reg, tcs_id));
- for (;;) {
- if (data == readl(tcs_reg_addr(drv, reg, tcs_id)))
- break;
- udelay(1);
- }
+ if (readl_poll_timeout_atomic(tcs_reg_addr(drv, reg, tcs_id), new_data,
+ new_data == data, 1, USEC_PER_SEC))
+ pr_err("%s: error writing %#x to %d:%#x\n", drv->name,
+ data, tcs_id, reg);
}
/**