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path: root/drivers/media/i2c/adv7604.c
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Diffstat (limited to 'drivers/media/i2c/adv7604.c')
-rw-r--r--drivers/media/i2c/adv7604.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/drivers/media/i2c/adv7604.c b/drivers/media/i2c/adv7604.c
index d91b084b2c7a..e271782b7b70 100644
--- a/drivers/media/i2c/adv7604.c
+++ b/drivers/media/i2c/adv7604.c
@@ -2524,10 +2524,10 @@ static int adv76xx_log_status(struct v4l2_subdev *sd)
const struct adv76xx_chip_info *info = state->info;
struct v4l2_dv_timings timings;
struct stdi_readback stdi;
- u8 reg_io_0x02 = io_read(sd, 0x02);
+ int ret;
+ u8 reg_io_0x02;
u8 edid_enabled;
u8 cable_det;
-
static const char * const csc_coeff_sel_rb[16] = {
"bypassed", "YPbPr601 -> RGB", "reserved", "YPbPr709 -> RGB",
"reserved", "RGB -> YPbPr601", "reserved", "RGB -> YPbPr709",
@@ -2626,13 +2626,21 @@ static int adv76xx_log_status(struct v4l2_subdev *sd)
v4l2_info(sd, "-----Color space-----\n");
v4l2_info(sd, "RGB quantization range ctrl: %s\n",
rgb_quantization_range_txt[state->rgb_quantization_range]);
- v4l2_info(sd, "Input color space: %s\n",
- input_color_space_txt[reg_io_0x02 >> 4]);
- v4l2_info(sd, "Output color space: %s %s, alt-gamma %s\n",
- (reg_io_0x02 & 0x02) ? "RGB" : "YCbCr",
- (((reg_io_0x02 >> 2) & 0x01) ^ (reg_io_0x02 & 0x01)) ?
- "(16-235)" : "(0-255)",
- (reg_io_0x02 & 0x08) ? "enabled" : "disabled");
+
+ ret = io_read(sd, 0x02);
+ if (ret < 0) {
+ v4l2_info(sd, "Can't read Input/Output color space\n");
+ } else {
+ reg_io_0x02 = ret;
+
+ v4l2_info(sd, "Input color space: %s\n",
+ input_color_space_txt[reg_io_0x02 >> 4]);
+ v4l2_info(sd, "Output color space: %s %s, alt-gamma %s\n",
+ (reg_io_0x02 & 0x02) ? "RGB" : "YCbCr",
+ (((reg_io_0x02 >> 2) & 0x01) ^ (reg_io_0x02 & 0x01)) ?
+ "(16-235)" : "(0-255)",
+ (reg_io_0x02 & 0x08) ? "enabled" : "disabled");
+ }
v4l2_info(sd, "Color space conversion: %s\n",
csc_coeff_sel_rb[cp_read(sd, info->cp_csc) >> 4]);