From: Martin Tůma Date: Fri, 21 Feb 2025 12:07:42 +0000 (+0100) Subject: media: mgb4: Fix CMT registers update logic X-Git-Tag: v6.15-rc1~174^2~105 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dd05443189f9ae175dd806594b67bf55ddb6539e;p=thirdparty%2Fkernel%2Flinux.git media: mgb4: Fix CMT registers update logic 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 Signed-off-by: Hans Verkuil --- diff --git a/drivers/media/pci/mgb4/mgb4_cmt.c b/drivers/media/pci/mgb4/mgb4_cmt.c index a25b68403bc60..bee4bdf54d1c5 100644 --- a/drivers/media/pci/mgb4/mgb4_cmt.c +++ b/drivers/media/pci/mgb4/mgb4_cmt.c @@ -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);