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Merge "msm: camera: icp: Add WD clear logic for lx7" into camera-kernel.lnx.5.0

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This commit is contained in:
Haritha Chintalapati
2021-07-27 22:09:56 -07:00
committed by Gerrit - the friendly Code Review server
parent 5971e01fa7 5d69bcd644
commit ecb3d1cd6c
3 changed files with 14 additions and 2 deletions
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11
drivers/cam_icp/icp_hw/lx7_hw/lx7_core.c
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@@ -857,8 +857,15 @@ irqreturn_t cam_lx7_handle_irq(int irq_num, void *data)
cam_io_w_mb(status, cirq_base + ICP_LX7_CIRQ_OB_CLEAR);
cam_io_w_mb(LX7_IRQ_CLEAR_CMD, cirq_base + ICP_LX7_CIRQ_OB_IRQ_CMD);
if (status & (LX7_WDT_BITE_WS0 | LX7_WDT_BITE_WS1)) {
CAM_ERR_RATE_LIMIT(CAM_ICP, "got watchdog interrupt from LX7");
if (status & LX7_WDT_BITE_WS0) {
/* WD clear sequence - SW listens only to WD0 */
cam_io_w_mb(0x0,
lx7_info->soc_info.reg_map[LX7_WD0_BASE].mem_base +
ICP_LX7_WD_CTRL);
cam_io_w_mb(0x1,
lx7_info->soc_info.reg_map[LX7_WD0_BASE].mem_base +
ICP_LX7_WD_INTCLR);
CAM_ERR_RATE_LIMIT(CAM_ICP, "Fatal: Watchdog Bite from LX7");
recover = true;
}

1
drivers/cam_icp/icp_hw/lx7_hw/lx7_core.h
View File

@@ -15,6 +15,7 @@
enum cam_lx7_reg_base {
LX7_CSR_BASE,
LX7_CIRQ_BASE,
LX7_WD0_BASE,
LX7_SYS_BASE,
LX7_BASE_MAX,
};

4
drivers/cam_icp/icp_hw/lx7_hw/lx7_reg.h
View File

@@ -20,6 +20,10 @@
#define ICP_LX7_CIRQ_OB_CLEAR 0x4
#define ICP_LX7_CIRQ_OB_STATUS 0xc
/* ICP WD reg space */
#define ICP_LX7_WD_CTRL 0x8
#define ICP_LX7_WD_INTCLR 0xC
/* These bitfields are shared by OB_MASK, OB_CLEAR, OB_STATUS */
#define LX7_WDT_BITE_WS1 (1 << 6)
#define LX7_WDT_BARK_WS1 (1 << 5)