msm: npu: Avoid to access NPU registers when power is off



NPU SSR could be triggered when NPU power is off, so SSR handler
should avoid to access NPU registers before NPU power is turned on.

Change-Id: I0ea1fcf1e025dccc4d85ec0f6f0e7184115c3db0
Signed-off-by: Jilai Wang <jilaiw@codeaurora.org>

parent 78327398

drivers/media/platform/msm/npu/npu_mgr.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -809,10 +809,6 @@ static int host_error_hdlr(struct npu_device *npu_dev, bool force)
		}

		NPU_INFO("npu subsystem is restarting\n");

		/* clear FW_CTRL_STATUS register before restart */
		REGW(npu_dev, REG_NPU_FW_CTRL_STATUS, 0x0);

		reinit_completion(&host_ctx->npu_power_up_done);
		ret = subsystem_restart_dev(host_ctx->subsystem_handle);
		if (ret) {