Merge "rpm-smd: Handle TX FIFO full scenario by retrying" (93aecb62) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/soc/qcom/rpm-smd.c

+10 −7

Original line number	Diff line number	Diff line
		@@ -1139,13 +1139,16 @@ static int msm_rpm_glink_send_buffer(char *buf, uint32_t size, bool noirq)
		do {
		ret = glink_tx(glink_data->glink_handle, buf, buf,
		size, GLINK_TX_SINGLE_THREADED);
		if (ret == -EBUSY) {
		pr_warn("%s: Channel is not ready. ret = %d\n",
		__func__, ret);
		spin_unlock_irqrestore(&msm_rpm_data.smd_lock_write,
		flags);
		if (ret == -EBUSY \|\| ret == -ENOSPC) {
		if (!noirq) {
		spin_unlock_irqrestore(
		&msm_rpm_data.smd_lock_write, flags);
		cpu_relax();
		spin_lock_irqsave(
		&msm_rpm_data.smd_lock_write, flags);
		} else {
		udelay(5);
		spin_lock_irqsave(&msm_rpm_data.smd_lock_write, flags);
		}
		timeout--;
		} else {
		ret = 0;