From 96936a6753a13dea5a8f66de949e6594dd82ce22 Mon Sep 17 00:00:00 2001 From: Eugen Hristev Date: Tue, 13 Apr 2021 12:57:20 +0200 Subject: [PATCH 178/247] media: atmel: atmel-isc: create callback for GAM submodule product specific The GAM submodule is a part of the atmel-isc pipeline, and stands for Gamma Correction. It is used to apply the gamma curve to the incoming pixels. Create a product specific callback for initializing the GAM submodule of the pipeline. For sama5d2 product, there is no special configuration at this moment, thus this function is a noop. [hverkuil: made isc_sama5d2_config_gam static] Signed-off-by: Eugen Hristev Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/platform/atmel/atmel-isc-base.c | 1 + drivers/media/platform/atmel/atmel-isc.h | 3 +++ drivers/media/platform/atmel/atmel-sama5d2-isc.c | 6 ++++++ 3 files changed, 10 insertions(+) --- a/drivers/media/platform/atmel/atmel-isc-base.c +++ b/drivers/media/platform/atmel/atmel-isc-base.c @@ -663,6 +663,7 @@ static void isc_set_pipeline(struct isc_ isc->config_csc(isc); isc->config_cbc(isc); isc->config_cc(isc); + isc->config_gam(isc); } static int isc_update_profile(struct isc_device *isc) --- a/drivers/media/platform/atmel/atmel-isc.h +++ b/drivers/media/platform/atmel/atmel-isc.h @@ -228,6 +228,8 @@ struct isc_reg_offsets { * specific CBC module * @config_cc: pointer to a function that initializes product * specific CC module + * @config_gam: pointer to a function that initializes product + * specific GAMMA module * @config_ctrls: pointer to a functoin that initializes product * specific v4l2 controls. * @@ -305,6 +307,7 @@ struct isc_device { void (*config_csc)(struct isc_device *isc); void (*config_cbc)(struct isc_device *isc); void (*config_cc)(struct isc_device *isc); + void (*config_gam)(struct isc_device *isc); void (*config_ctrls)(struct isc_device *isc, const struct v4l2_ctrl_ops *ops); --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c @@ -112,6 +112,11 @@ static void isc_sama5d2_config_dpc(struc /* This module is not present on sama5d2 pipeline */ } +static void isc_sama5d2_config_gam(struct isc_device *isc) +{ + /* No specific gamma configuration */ +} + /* Gamma table with gamma 1/2.2 */ static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = { /* 0 --> gamma 1/1.8 */ @@ -282,6 +287,7 @@ static int atmel_isc_probe(struct platfo isc->config_csc = isc_sama5d2_config_csc; isc->config_cbc = isc_sama5d2_config_cbc; isc->config_cc = isc_sama5d2_config_cc; + isc->config_gam = isc_sama5d2_config_gam; isc->config_ctrls = isc_sama5d2_config_ctrls; isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;