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Commit 25d716b2 authored by Chandan Kumar Jha's avatar Chandan Kumar Jha
Browse files

msm: camera: isp: Disable the PPI hw during PPI overflow case 



Disable the PPI interrupt to stop IRQ storm during overflow errors.

Change-Id: I4fac7c521ef6774933d836ad326ed2f4091a6322
Signed-off-by: default avatarChandan Kumar Jha <cjha@codeaurora.org>
parent a11f39a8

drivers/media/platform/msm/camera/cam_isp/isp_hw_mgr/isp_hw/ife_csid_hw/cam_csid_ppi_core.c

+6 −5
Original line number Diff line number Diff line
@@ -331,7 +331,6 @@ int cam_csid_ppi_init_soc_resources(struct cam_hw_soc_info *soc_info, 
irqreturn_t cam_csid_ppi_irq(int irq_num, void *data)

{

	uint32_t      irq_status = 0;

	uint32_t      i, ppi_cfg_val = 0;

	bool          fatal_err_detected = false;



	struct cam_csid_ppi_hw                *ppi_hw;
@@ -379,11 +378,13 @@ irqreturn_t cam_csid_ppi_irq(int irq_num, void *data) 
	if (fatal_err_detected) {

		CAM_ERR(CAM_ISP, "PPI: %d irq_status:0x%x",

			ppi_hw->hw_intf->hw_idx, irq_status);

		/* disable lanes */

		for (i = 0; i < CAM_CSID_PPI_LANES_MAX; i++)

			ppi_cfg_val &= ~PPI_CFG_CPHY_DLX_EN(i);



		cam_io_w_mb(ppi_cfg_val, soc_info->reg_map[0].mem_base +

		/* disable the interrupt */

		cam_io_w_mb(0, soc_info->reg_map[0].mem_base +

			ppi_reg->ppi_irq_mask_addr);



		/* disable lanes */

		cam_io_w_mb(0, soc_info->reg_map[0].mem_base +

			ppi_reg->ppi_module_cfg_addr);

	}

ret: