evie/android_kernel_oneplus_msm8998
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msm: isp: Clear irq status if irq is set again with same value

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Sometimes same irq is received even after clearing irq.
make sure irq status is rest by clearing the irq again.

Change-Id: Ib5355a4b9952fa7f02d1dea69b5fb767928e4b9f
Signed-off-by: Srikanth Uyyala <suyyala@codeaurora.org>
This commit is contained in:
Srikanth Uyyala 2018-03-14 10:42:10 +05:30
parent 2c333d317c
commit ac77b7cb6c
1 changed files with 9 additions and 0 deletions
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9
drivers/media/platform/msm/camera_v2/isp/msm_isp47.c
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@ -570,6 +570,7 @@ void msm_vfe47_process_error_status(struct vfe_device *vfe_dev)
void msm_vfe47_read_and_clear_irq_status(struct vfe_device *vfe_dev,
uint32_t *irq_status0, uint32_t *irq_status1)
{
uint32_t count = 0;
*irq_status0 = msm_camera_io_r(vfe_dev->vfe_base + 0x6C);
*irq_status1 = msm_camera_io_r(vfe_dev->vfe_base + 0x70);
/* Mask off bits that are not enabled */
@ -578,6 +579,14 @@ void msm_vfe47_read_and_clear_irq_status(struct vfe_device *vfe_dev,
msm_camera_io_w_mb(1, vfe_dev->vfe_base + 0x58);
*irq_status0 &= vfe_dev->irq0_mask;
*irq_status1 &= vfe_dev->irq1_mask;
/* check if status register is cleared if not clear again*/
while (*irq_status0 &&
(*irq_status0 & msm_camera_io_r(vfe_dev->vfe_base + 0x6C)) &&
(count < MAX_RECOVERY_THRESHOLD)) {
msm_camera_io_w(*irq_status0, vfe_dev->vfe_base + 0x64);
msm_camera_io_w_mb(1, vfe_dev->vfe_base + 0x58);
count++;
}
if (*irq_status1 & (1 << 0)) {
vfe_dev->error_info.camif_status =