soc: qcom: rpmh-rsc: Timeout after 1 second in write_tcs_reg_sync() (91160150) · Commits · 戴 / test

If our data still isn't there after 1 second, shout and give up. Reported-by:

drivers/soc/qcom/rpmh-rsc.c

+7 −5

Original line number	Diff line number	Diff line
		@@ -10,6 +10,7 @@
		#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>
		@@ -175,12 +176,13 @@ static void write_tcs_reg(const struct rsc_drv *drv, int reg, int tcs_id,
		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);
		}

		/**