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Subject: media: ov2680: Fix ov2680_bayer_order() Author: Hans de Goede <[email protected]> Date: Thu Aug 3 11:33:17 2023 +0200 The index into ov2680_hv_flip_bayer_order[] should be 0-3, but ov2680_bayer_order() was using 0 + BIT(2) + (BIT(2) << 1) as max index, while the intention was to use: 0 + 1 + 2 as max index. Fix the index calculation in ov2680_bayer_order(), while at it also just use the ctrl values rather then reading them back using a slow i2c-read transaction. This also allows making the function void, since there now are no more i2c-reads to error check. Note the check for the ctrls being NULL is there to allow adding an ov2680_fill_format() helper later, which will call ov2680_set_bayer_order() during probe() before the ctrls are created. [Sakari Ailus: Change all users of ov2680_set_bayer_order() here] Fixes: 3ee47cad3e69 ("media: ov2680: Add Omnivision OV2680 sensor driver") Reviewed-by: Daniel Scally <[email protected]> Acked-by: Rui Miguel Silva <[email protected]> Signed-off-by: Hans de Goede <[email protected]> Signed-off-by: Sakari Ailus <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/i2c/ov2680.c | 33 ++++++++++++++------------------- 1 file changed, 14 insertions(+), 19 deletions(-) --- diff --git a/drivers/media/i2c/ov2680.c b/drivers/media/i2c/ov2680.c index 3a737a1607a4..f05fbba72c7c 100644 --- a/drivers/media/i2c/ov2680.c +++ b/drivers/media/i2c/ov2680.c @@ -315,26 +315,17 @@ static void ov2680_power_down(struct ov2680_dev *sensor) usleep_range(5000, 10000); } -static int ov2680_bayer_order(struct ov2680_dev *sensor) +static void ov2680_set_bayer_order(struct ov2680_dev *sensor) { - u32 format1; - u32 format2; - u32 hv_flip; - int ret; - - ret = ov2680_read_reg(sensor, OV2680_REG_FORMAT1, &format1); - if (ret < 0) - return ret; + int hv_flip = 0; - ret = ov2680_read_reg(sensor, OV2680_REG_FORMAT2, &format2); - if (ret < 0) - return ret; + if (sensor->ctrls.vflip && sensor->ctrls.vflip->val) + hv_flip += 1; - hv_flip = (format2 & BIT(2) << 1) | (format1 & BIT(2)); + if (sensor->ctrls.hflip && sensor->ctrls.hflip->val) + hv_flip += 2; sensor->fmt.code = ov2680_hv_flip_bayer_order[hv_flip]; - - return 0; } static int ov2680_vflip_enable(struct ov2680_dev *sensor) @@ -345,7 +336,8 @@ static int ov2680_vflip_enable(struct ov2680_dev *sensor) if (ret < 0) return ret; - return ov2680_bayer_order(sensor); + ov2680_set_bayer_order(sensor); + return 0; } static int ov2680_vflip_disable(struct ov2680_dev *sensor) @@ -356,7 +348,8 @@ static int ov2680_vflip_disable(struct ov2680_dev *sensor) if (ret < 0) return ret; - return ov2680_bayer_order(sensor); + ov2680_set_bayer_order(sensor); + return 0; } static int ov2680_hflip_enable(struct ov2680_dev *sensor) @@ -367,7 +360,8 @@ static int ov2680_hflip_enable(struct ov2680_dev *sensor) if (ret < 0) return ret; - return ov2680_bayer_order(sensor); + ov2680_set_bayer_order(sensor); + return 0; } static int ov2680_hflip_disable(struct ov2680_dev *sensor) @@ -378,7 +372,8 @@ static int ov2680_hflip_disable(struct ov2680_dev *sensor) if (ret < 0) return ret; - return ov2680_bayer_order(sensor); + ov2680_set_bayer_order(sensor); + return 0; } static int ov2680_test_pattern_set(struct ov2680_dev *sensor, int value) _______________________________________________ linuxtv-commits mailing list [email protected] https://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
