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Subject: media: cx23885: Set subdev host data to clk_freq pointer
Author:  Brad Love <>
Date:    Tue Mar 6 14:15:36 2018 -0500

Currently clk_freq is ignored entirely, because the cx235840 driver
configures the xtal at the chip defaults. This is an issue if a
board is produced with a non-default frequency crystal. If clk_freq
is not zero the cx25840 will attempt to use the setting provided,
or fall back to defaults otherwise.

Signed-off-by: Brad Love <>
Signed-off-by: Mauro Carvalho Chehab <>

 drivers/media/pci/cx23885/cx23885-cards.c | 4 ++++
 1 file changed, 4 insertions(+)


diff --git a/drivers/media/pci/cx23885/cx23885-cards.c 
index 41f5669b2b43..3a1c55187b2a 100644
--- a/drivers/media/pci/cx23885/cx23885-cards.c
+++ b/drivers/media/pci/cx23885/cx23885-cards.c
@@ -2362,6 +2362,10 @@ void cx23885_card_setup(struct cx23885_dev *dev)
                                "cx25840", 0x88 >> 1, NULL);
                if (dev->sd_cx25840) {
+                       /* set host data for clk_freq configuration */
+                       v4l2_set_subdev_hostdata(dev->sd_cx25840,
+                                               &dev->clk_freq);
                        dev->sd_cx25840->grp_id = CX23885_HW_AV_CORE;
                        v4l2_subdev_call(dev->sd_cx25840, core, load_fw);

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