diff options
Diffstat (limited to 'target/linux/at91/patches-5.10/171-media-atmel-atmel-isc-add-support-for-version-regist.patch')
| -rw-r--r-- | target/linux/at91/patches-5.10/171-media-atmel-atmel-isc-add-support-for-version-regist.patch | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.10/171-media-atmel-atmel-isc-add-support-for-version-regist.patch b/target/linux/at91/patches-5.10/171-media-atmel-atmel-isc-add-support-for-version-regist.patch new file mode 100644 index 0000000000..6eca9dbf91 --- /dev/null +++ b/target/linux/at91/patches-5.10/171-media-atmel-atmel-isc-add-support-for-version-regist.patch @@ -0,0 +1,86 @@ +From 0939b0a92acca11a5a3b0de5dd70434e17e40ed3 Mon Sep 17 00:00:00 2001 +From: Eugen Hristev <eugen.hristev@microchip.com> +Date: Tue, 13 Apr 2021 12:57:13 +0200 +Subject: [PATCH 171/247] media: atmel: atmel-isc: add support for version + register + +Add support for version register and print it at probe time. + +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> +--- + drivers/media/platform/atmel/atmel-isc-regs.h | 5 +++++ + drivers/media/platform/atmel/atmel-isc.h | 2 ++ + drivers/media/platform/atmel/atmel-sama5d2-isc.c | 5 +++++ + 3 files changed, 12 insertions(+) + +diff --git a/drivers/media/platform/atmel/atmel-isc-regs.h b/drivers/media/platform/atmel/atmel-isc-regs.h +index 4940998c82a2..344668dcfcf4 100644 +--- a/drivers/media/platform/atmel/atmel-isc-regs.h ++++ b/drivers/media/platform/atmel/atmel-isc-regs.h +@@ -295,6 +295,11 @@ + /* DMA Address 2 Register */ + #define ISC_DAD2 0x000003fc + ++/* Offset for version register specific to sama5d2 product */ ++#define ISC_SAMA5D2_VERSION_OFFSET 0 ++/* Version Register */ ++#define ISC_VERSION 0x0000040c ++ + /* Histogram Entry */ + #define ISC_HIS_ENTRY 0x00000410 + +diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h +index bea545327d3d..13ee19d99c2e 100644 +--- a/drivers/media/platform/atmel/atmel-isc.h ++++ b/drivers/media/platform/atmel/atmel-isc.h +@@ -152,6 +152,7 @@ struct isc_ctrls { + * @rlp: Offset for the RLP register + * @his: Offset for the HIS related registers + * @dma: Offset for the DMA related registers ++ * @version: Offset for the version register + */ + struct isc_reg_offsets { + u32 csc; +@@ -161,6 +162,7 @@ struct isc_reg_offsets { + u32 rlp; + u32 his; + u32 dma; ++ u32 version; + }; + + /* +diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c +index bfd56ac5c921..aebf38dde2d2 100644 +--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c ++++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c +@@ -210,6 +210,7 @@ static int atmel_isc_probe(struct platform_device *pdev) + struct isc_subdev_entity *subdev_entity; + int irq; + int ret; ++ u32 ver; + + isc = devm_kzalloc(dev, sizeof(*isc), GFP_KERNEL); + if (!isc) +@@ -258,6 +259,7 @@ static int atmel_isc_probe(struct platform_device *pdev) + isc->offsets.rlp = ISC_SAMA5D2_RLP_OFFSET; + isc->offsets.his = ISC_SAMA5D2_HIS_OFFSET; + isc->offsets.dma = ISC_SAMA5D2_DMA_OFFSET; ++ isc->offsets.version = ISC_SAMA5D2_VERSION_OFFSET; + + /* sama5d2-isc - 8 bits per beat */ + isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8; +@@ -346,6 +348,9 @@ static int atmel_isc_probe(struct platform_device *pdev) + pm_runtime_enable(dev); + pm_request_idle(dev); + ++ regmap_read(isc->regmap, ISC_VERSION + isc->offsets.version, &ver); ++ dev_info(dev, "Microchip ISC version %x\n", ver); ++ + return 0; + + cleanup_subdev: +-- +2.32.0 + |