mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 17:01:14 +00:00
78 lines
2.5 KiB
Diff
78 lines
2.5 KiB
Diff
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(+)
|
|
|
|
--- 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
|
|
|
|
--- 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;
|
|
};
|
|
|
|
/*
|
|
--- 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 platfo
|
|
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 platfo
|
|
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 platfo
|
|
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:
|