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media: mgb4: Fix CMT registers update logic

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The CMT "magic values" registers must be updated while the CMT reset
registers are active.

Fixes: 0ab13674a9bd ("media: pci: mgb4: Added Digiteq Automotive MGB4 driver")
Cc: stable@vger.kernel.org
Signed-off-by: Martin Tůma <martin.tuma@digiteqautomotive.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
This commit is contained in:
Martin Tůma 2025-02-21 13:07:42 +01:00 committed by Hans Verkuil
parent d40f4b15c0
commit dd05443189
1 changed files with 4 additions and 2 deletions
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6
drivers/media/pci/mgb4/mgb4_cmt.c
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@ -206,10 +206,11 @@ u32 mgb4_cmt_set_vout_freq(struct mgb4_vout_dev *voutdev, unsigned int freq)
mgb4_write_reg(video, regs->config, 0x1 | (config & ~0x3));
mgb4_mask_reg(video, regs->config, 0x100, 0x100);
for (i = 0; i < ARRAY_SIZE(cmt_addrs_out[0]); i++)
mgb4_write_reg(&voutdev->mgbdev->cmt, addr[i], reg_set[i]);
mgb4_mask_reg(video, regs->config, 0x100, 0x100);
mgb4_mask_reg(video, regs->config, 0x100, 0x0);
mgb4_write_reg(video, regs->config, config & ~0x1);
@ -236,10 +237,11 @@ void mgb4_cmt_set_vin_freq_range(struct mgb4_vin_dev *vindev,
mgb4_write_reg(video, regs->config, 0x1 | (config & ~0x3));
mgb4_mask_reg(video, regs->config, 0x1000, 0x1000);
for (i = 0; i < ARRAY_SIZE(cmt_addrs_in[0]); i++)
mgb4_write_reg(&vindev->mgbdev->cmt, addr[i], reg_set[i]);
mgb4_mask_reg(video, regs->config, 0x1000, 0x1000);
mgb4_mask_reg(video, regs->config, 0x1000, 0x0);
mgb4_write_reg(video, regs->config, config & ~0x1);