From 7a1b082cd81a2496e2687cee7ea1ef04a3020f48 Mon Sep 17 00:00:00 2001 From: Eugen Hristev Date: Tue, 13 Apr 2021 12:57:06 +0200 Subject: [PATCH 164/247] media: atmel: atmel-isc: create register offsets struct Create a struct that holds register offsets that are product specific. Add initially the CSC register. This allows each product that contains a variant of the ISC to add their own register offset. Signed-off-by: Eugen Hristev Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/atmel/atmel-isc-base.c | 2 +- drivers/media/platform/atmel/atmel-isc-regs.h | 3 +++ drivers/media/platform/atmel/atmel-isc.h | 12 +++++++++++ .../media/platform/atmel/atmel-sama5d2-isc.c | 20 +++++++++++++------ 4 files changed, 30 insertions(+), 7 deletions(-) --- a/drivers/media/platform/atmel/atmel-isc-base.c +++ b/drivers/media/platform/atmel/atmel-isc-base.c @@ -2326,7 +2326,7 @@ int isc_pipeline_init(struct isc_device REG_FIELD(ISC_GAM_CTRL, 1, 1), REG_FIELD(ISC_GAM_CTRL, 2, 2), REG_FIELD(ISC_GAM_CTRL, 3, 3), - REG_FIELD(ISC_CSC_CTRL, 0, 0), + REG_FIELD(ISC_CSC_CTRL + isc->offsets.csc, 0, 0), REG_FIELD(ISC_CBC_CTRL, 0, 0), REG_FIELD(ISC_SUB422_CTRL, 0, 0), REG_FIELD(ISC_SUB420_CTRL, 0, 0), --- a/drivers/media/platform/atmel/atmel-isc-regs.h +++ b/drivers/media/platform/atmel/atmel-isc-regs.h @@ -153,6 +153,9 @@ /* ISC_Gamma Correction Green Entry Register */ #define ISC_GAM_RENTRY 0x00000298 +/* Offset for CSC register specific to sama5d2 product */ +#define ISC_SAMA5D2_CSC_OFFSET 0 + /* Color Space Conversion Control Register */ #define ISC_CSC_CTRL 0x00000398 --- a/drivers/media/platform/atmel/atmel-isc.h +++ b/drivers/media/platform/atmel/atmel-isc.h @@ -144,6 +144,14 @@ struct isc_ctrls { #define ISC_PIPE_LINE_NODE_NUM 11 /* + * struct isc_reg_offsets - ISC device register offsets + * @csc: Offset for the CSC register + */ +struct isc_reg_offsets { + u32 csc; +}; + +/* * struct isc_device - ISC device driver data/config struct * @regmap: Register map * @hclock: Hclock clock input (refer datasheet) @@ -194,6 +202,8 @@ struct isc_ctrls { * * @config_csc: pointer to a function that initializes product * specific CSC module + * + * @offsets: struct holding the product specific register offsets */ struct isc_device { struct regmap *regmap; @@ -265,6 +275,8 @@ struct isc_device { struct { void (*config_csc)(struct isc_device *isc); }; + + struct isc_reg_offsets offsets; }; extern struct isc_format formats_list[]; --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c @@ -59,12 +59,18 @@ static void isc_sama5d2_config_csc(struc struct regmap *regmap = isc->regmap; /* Convert RGB to YUV */ - regmap_write(regmap, ISC_CSC_YR_YG, 0x42 | (0x81 << 16)); - regmap_write(regmap, ISC_CSC_YB_OY, 0x19 | (0x10 << 16)); - regmap_write(regmap, ISC_CSC_CBR_CBG, 0xFDA | (0xFB6 << 16)); - regmap_write(regmap, ISC_CSC_CBB_OCB, 0x70 | (0x80 << 16)); - regmap_write(regmap, ISC_CSC_CRR_CRG, 0x70 | (0xFA2 << 16)); - regmap_write(regmap, ISC_CSC_CRB_OCR, 0xFEE | (0x80 << 16)); + regmap_write(regmap, ISC_CSC_YR_YG + isc->offsets.csc, + 0x42 | (0x81 << 16)); + regmap_write(regmap, ISC_CSC_YB_OY + isc->offsets.csc, + 0x19 | (0x10 << 16)); + regmap_write(regmap, ISC_CSC_CBR_CBG + isc->offsets.csc, + 0xFDA | (0xFB6 << 16)); + regmap_write(regmap, ISC_CSC_CBB_OCB + isc->offsets.csc, + 0x70 | (0x80 << 16)); + regmap_write(regmap, ISC_CSC_CRR_CRG + isc->offsets.csc, + 0x70 | (0xFA2 << 16)); + regmap_write(regmap, ISC_CSC_CRB_OCR + isc->offsets.csc, + 0xFEE | (0x80 << 16)); } /* Gamma table with gamma 1/2.2 */ @@ -234,6 +240,8 @@ static int atmel_isc_probe(struct platfo isc->config_csc = isc_sama5d2_config_csc; + isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET; + /* sama5d2-isc - 8 bits per beat */ isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;