diff options
Diffstat (limited to 'target/linux/at91/patches-5.15/193-media-atmel-atmel-sama5d2-isc-fix-YUYV-format.patch')
| -rw-r--r-- | target/linux/at91/patches-5.15/193-media-atmel-atmel-sama5d2-isc-fix-YUYV-format.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.15/193-media-atmel-atmel-sama5d2-isc-fix-YUYV-format.patch b/target/linux/at91/patches-5.15/193-media-atmel-atmel-sama5d2-isc-fix-YUYV-format.patch new file mode 100644 index 0000000000..a554a288a5 --- /dev/null +++ b/target/linux/at91/patches-5.15/193-media-atmel-atmel-sama5d2-isc-fix-YUYV-format.patch @@ -0,0 +1,48 @@ +From 21261e30679118b96ed537d1cdf9e12682fc1b29 Mon Sep 17 00:00:00 2001 +From: Eugen Hristev <eugen.hristev@microchip.com> +Date: Wed, 9 Jun 2021 15:00:28 +0200 +Subject: [PATCH 193/247] media: atmel: atmel-sama5d2-isc: fix YUYV format + +SAMA5D2 does not have the YCYC field for the RLP (rounding, limiting, +packaging) module. +The YCYC field is supposed to work with interleaved YUV formats like YUYV. +In SAMA5D2, we have to use YYCC field, which is used for both planar +formats like YUV420 and interleaved formats like YUYV. +Fix the according rlp callback to replace the generic YCYC field (which +makes more sense from a logical point of view) with the required YYCC +field. + +Fixes: debfa496871c ("media: atmel: atmel-isc-base: add support for more formats and additional pipeline modules") +Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> +Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> +Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> +--- + .../media/platform/atmel/atmel-sama5d2-isc.c | 17 +++++++++++++++++ + 1 file changed, 17 insertions(+) + +--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c ++++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c +@@ -255,6 +255,23 @@ static void isc_sama5d2_config_rlp(struc + struct regmap *regmap = isc->regmap; + u32 rlp_mode = isc->config.rlp_cfg_mode; + ++ /* ++ * In sama5d2, the YUV planar modes and the YUYV modes are treated ++ * in the same way in RLP register. ++ * Normally, YYCC mode should be Luma(n) - Color B(n) - Color R (n) ++ * and YCYC should be Luma(n + 1) - Color B (n) - Luma (n) - Color R (n) ++ * but in sama5d2, the YCYC mode does not exist, and YYCC must be ++ * selected for both planar and interleaved modes, as in fact ++ * both modes are supported. ++ * ++ * Thus, if the YCYC mode is selected, replace it with the ++ * sama5d2-compliant mode which is YYCC . ++ */ ++ if ((rlp_mode & ISC_RLP_CFG_MODE_YCYC) == ISC_RLP_CFG_MODE_YCYC) { ++ rlp_mode &= ~ISC_RLP_CFG_MODE_MASK; ++ rlp_mode |= ISC_RLP_CFG_MODE_YYCC; ++ } ++ + regmap_update_bits(regmap, ISC_RLP_CFG + isc->offsets.rlp, + ISC_RLP_CFG_MODE_MASK, rlp_mode); + } |