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SubjectRe: [PATCH v5 10/22] media: camss: Add support for CSID hardware version Titan 170
On Sun, 21 Feb 2021 at 18:14, Andrey Konovalov
<andrey.konovalov@linaro.org> wrote:
>
> Hi Robert,
>
> Thank you for your patch!
>
> On 17.02.2021 14:21, Robert Foss wrote:
> > Add register definitions for version 170 of the Titan architecture
> > and implement support for the CSID subdevice.
> >
> > Signed-off-by: Robert Foss <robert.foss@linaro.org>
> > ---
> > drivers/media/platform/qcom/camss/Makefile | 1 +
> > .../platform/qcom/camss/camss-csid-170.c | 602 ++++++++++++++++++
> > .../media/platform/qcom/camss/camss-csid.c | 4 +
> > .../media/platform/qcom/camss/camss-csid.h | 2 +
> > .../media/platform/qcom/camss/camss-vfe-170.c | 1 -
> > drivers/media/platform/qcom/camss/camss.c | 62 ++
> > 6 files changed, 671 insertions(+), 1 deletion(-)
> > create mode 100644 drivers/media/platform/qcom/camss/camss-csid-170.c
> >
> > diff --git a/drivers/media/platform/qcom/camss/Makefile b/drivers/media/platform/qcom/camss/Makefile
> > index cff388b653ba..0752c46ea37b 100644
> > --- a/drivers/media/platform/qcom/camss/Makefile
> > +++ b/drivers/media/platform/qcom/camss/Makefile
> > @@ -6,6 +6,7 @@ qcom-camss-objs += \
> > camss-csid.o \
> > camss-csid-4-1.o \
> > camss-csid-4-7.o \
> > + camss-csid-170.o \
> > camss-csiphy-2ph-1-0.o \
> > camss-csiphy-3ph-1-0.o \
> > camss-csiphy.o \
> > diff --git a/drivers/media/platform/qcom/camss/camss-csid-170.c b/drivers/media/platform/qcom/camss/camss-csid-170.c
> > new file mode 100644
> > index 000000000000..0e9b08ed38c2
> > --- /dev/null
> > +++ b/drivers/media/platform/qcom/camss/camss-csid-170.c
> > @@ -0,0 +1,602 @@
> > +// SPDX-License-Identifier: GPL-2.0
> > +/*
> > + * camss-csid-4-7.c
> > + *
> > + * Qualcomm MSM Camera Subsystem - CSID (CSI Decoder) Module
> > + *
> > + * Copyright (C) 2020 Linaro Ltd.
> > + */
> > +#include <linux/completion.h>
> > +#include <linux/interrupt.h>
> > +#include <linux/io.h>
> > +#include <linux/kernel.h>
> > +#include <linux/of.h>
> > +
> > +#include "camss-csid.h"
> > +#include "camss.h"
> > +
> > +/* The CSID 2 IP-block is different from the others,
> > + * and is of a bare-bones Lite version, with no PIX
> > + * interface support. As a result of that it has an
> > + * alternate register layout.
> > + */
> > +#define IS_LITE (csid->id == 2 ? 1 : 0)
> > +
> > +#define CSID_HW_VERSION 0x0
> > +#define HW_VERSION_STEPPING 0
> > +#define HW_VERSION_REVISION 16
> > +#define HW_VERSION_GENERATION 28
> > +
> > +#define CSID_RST_STROBES 0x10
> > +#define RST_STROBES 0
> > +
> > +#define CSID_CSI2_RX_IRQ_STATUS 0x20
> > +#define CSID_CSI2_RX_IRQ_MASK 0x24
> > +#define CSID_CSI2_RX_IRQ_CLEAR 0x28
> > +
> > +#define CSID_CSI2_RDIN_IRQ_STATUS(rdi) ((IS_LITE ? 0x30 : 0x40) \
> > + + 0x10 * (rdi))
> > +#define CSID_CSI2_RDIN_IRQ_MASK(rdi) ((IS_LITE ? 0x34 : 0x44) \
> > + + 0x10 * (rdi))
> > +#define CSID_CSI2_RDIN_IRQ_CLEAR(rdi) ((IS_LITE ? 0x38 : 0x48) \
> > + + 0x10 * (rdi))
> > +#define CSID_CSI2_RDIN_IRQ_SET(rdi) ((IS_LITE ? 0x3C : 0x4C) \
> > + + 0x10 * (rdi))
> > +
> > +#define CSID_TOP_IRQ_STATUS 0x70
> > +#define TOP_IRQ_STATUS_RESET_DONE 0
> > +#define CSID_TOP_IRQ_MASK 0x74
> > +#define CSID_TOP_IRQ_CLEAR 0x78
> > +#define CSID_TOP_IRQ_SET 0x7C
> > +#define CSID_IRQ_CMD 0x80
> > +#define IRQ_CMD_CLEAR 0
> > +#define IRQ_CMD_SET 4
> > +
> > +#define CSID_CSI2_RX_CFG0 0x100
> > +#define CSI2_RX_CFG0_NUM_ACTIVE_LANES 0
> > +#define CSI2_RX_CFG0_DL0_INPUT_SEL 4
> > +#define CSI2_RX_CFG0_DL1_INPUT_SEL 8
> > +#define CSI2_RX_CFG0_DL2_INPUT_SEL 12
> > +#define CSI2_RX_CFG0_DL3_INPUT_SEL 16
> > +#define CSI2_RX_CFG0_PHY_NUM_SEL 20
> > +#define CSI2_RX_CFG0_PHY_TYPE_SEL 24
> > +
> > +#define CSID_CSI2_RX_CFG1 0x104
> > +#define CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN 0
> > +#define CSI2_RX_CFG1_DE_SCRAMBLE_EN 1
> > +#define CSI2_RX_CFG1_VC_MODE 2
> > +#define CSI2_RX_CFG1_COMPLETE_STREAM_EN 4
> > +#define CSI2_RX_CFG1_COMPLETE_STREAM_FRAME_TIMING 5
> > +#define CSI2_RX_CFG1_MISR_EN 6
> > +#define CSI2_RX_CFG1_CGC_MODE 7
> > +#define CGC_MODE_DYNAMIC_GATING 0
> > +#define CGC_MODE_ALWAYS_ON 1
> > +
> > +#define CSID_RDI_CFG0(rdi) ((IS_LITE ? 0x200 : 0x300) \
> > + + 0x100 * (rdi))
> > +#define RDI_CFG0_BYTE_CNTR_EN 0
> > +#define RDI_CFG0_FORMAT_MEASURE_EN 1
> > +#define RDI_CFG0_TIMESTAMP_EN 2
> > +#define RDI_CFG0_DROP_H_EN 3
> > +#define RDI_CFG0_DROP_V_EN 4
> > +#define RDI_CFG0_CROP_H_EN 5
> > +#define RDI_CFG0_CROP_V_EN 6
> > +#define RDI_CFG0_MISR_EN 7
> > +#define RDI_CFG0_CGC_MODE 8
> > +#define CGC_MODE_DYNAMIC 0
> > +#define CGC_MODE_ALWAYS_ON 1
> > +#define RDI_CFG0_PLAIN_ALIGNMENT 9
> > +#define PLAIN_ALIGNMENT_LSB 0
> > +#define PLAIN_ALIGNMENT_MSB 1
> > +#define RDI_CFG0_PLAIN_FORMAT 10
> > +#define RDI_CFG0_DECODE_FORMAT 12
> > +#define RDI_CFG0_DATA_TYPE 16
> > +#define RDI_CFG0_VIRTUAL_CHANNEL 22
> > +#define RDI_CFG0_DT_ID 27
> > +#define RDI_CFG0_EARLY_EOF_EN 29
> > +#define RDI_CFG0_PACKING_FORMAT 30
> > +#define RDI_CFG0_ENABLE 31
> > +
> > +#define CSID_RDI_CFG1(rdi) ((IS_LITE ? 0x204 : 0x304)\
> > + + 0x100 * (rdi))
> > +#define RDI_CFG1_TIMESTAMP_STB_SEL 0
> > +
> > +#define CSID_RDI_CTRL(rdi) ((IS_LITE ? 0x208 : 0x308)\
> > + + 0x100 * (rdi))
> > +#define RDI_CTRL_HALT_CMD 0
> > +#define ALT_CMD_RESUME_AT_FRAME_BOUNDARY 1
> > +#define RDI_CTRL_HALT_MODE 2
> > +
> > +#define CSID_RDI_FRM_DROP_PATTERN(rdi) ((IS_LITE ? 0x20C : 0x30C)\
> > + + 0x100 * (rdi))
> > +#define CSID_RDI_FRM_DROP_PERIOD(rdi) ((IS_LITE ? 0x210 : 0x310)\
> > + + 0x100 * (rdi))
> > +#define CSID_RDI_IRQ_SUBSAMPLE_PATTERN(rdi) ((IS_LITE ? 0x214 : 0x314)\
> > + + 0x100 * (rdi))
> > +#define CSID_RDI_IRQ_SUBSAMPLE_PERIOD(rdi) ((IS_LITE ? 0x218 : 0x318)\
> > + + 0x100 * (rdi))
> > +#define CSID_RDI_RPP_PIX_DROP_PATTERN(rdi) ((IS_LITE ? 0x224 : 0x324)\
> > + + 0x100 * (rdi))
> > +#define CSID_RDI_RPP_PIX_DROP_PERIOD(rdi) ((IS_LITE ? 0x228 : 0x328)\
> > + + 0x100 * (rdi))
> > +#define CSID_RDI_RPP_LINE_DROP_PATTERN(rdi) ((IS_LITE ? 0x22C : 0x32C)\
> > + + 0x100 * (rdi))
> > +#define CSID_RDI_RPP_LINE_DROP_PERIOD(rdi) ((IS_LITE ? 0x230 : 0x330)\
> > + + 0x100 * (rdi))
> > +
> > +#define CSID_TPG_CTRL 0x600
> > +#define TPG_CTRL_TEST_EN 0
> > +#define TPG_CTRL_FS_PKT_EN 1
> > +#define TPG_CTRL_FE_PKT_EN 2
> > +#define TPG_CTRL_NUM_ACTIVE_LANES 4
> > +#define TPG_CTRL_CYCLES_BETWEEN_PKTS 8
> > +#define TPG_CTRL_NUM_TRAIL_BYTES 20
> > +
> > +#define CSID_TPG_VC_CFG0 0x604
> > +#define TPG_VC_CFG0_VC_NUM 0
> > +#define TPG_VC_CFG0_NUM_ACTIVE_SLOTS 8
> > +#define NUM_ACTIVE_SLOTS_0_ENABLED 0
> > +#define NUM_ACTIVE_SLOTS_0_1_ENABLED 1
> > +#define NUM_ACTIVE_SLOTS_0_1_2_ENABLED 2
> > +#define NUM_ACTIVE_SLOTS_0_1_3_ENABLED 3
> > +#define TPG_VC_CFG0_LINE_INTERLEAVING_MODE 10
> > +#define INTELEAVING_MODE_INTERLEAVED 0
> > +#define INTELEAVING_MODE_ONE_SHOT 1
> > +#define TPG_VC_CFG0_NUM_FRAMES 16
> > +
> > +#define CSID_TPG_VC_CFG1 0x608
> > +#define TPG_VC_CFG1_H_BLANKING_COUNT 0
> > +#define TPG_VC_CFG1_V_BLANKING_COUNT 12
> > +#define TPG_VC_CFG1_V_BLANK_FRAME_WIDTH_SEL 24
> > +
> > +#define CSID_TPG_LFSR_SEED 0x60C
> > +
> > +#define CSID_TPG_DT_n_CFG_0(n) (0x610 + (n) * 0xC)
> > +#define TPG_DT_n_CFG_0_FRAME_HEIGHT 0
> > +#define TPG_DT_n_CFG_0_FRAME_WIDTH 16
> > +
> > +#define CSID_TPG_DT_n_CFG_1(n) (0x614 + (n) * 0xC)
> > +#define TPG_DT_n_CFG_1_DATA_TYPE 0
> > +#define TPG_DT_n_CFG_1_ECC_XOR_MASK 8
> > +#define TPG_DT_n_CFG_1_CRC_XOR_MASK 16
> > +
> > +#define CSID_TPG_DT_n_CFG_2(n) (0x618 + (n) * 0xC)
> > +#define TPG_DT_n_CFG_2_PAYLOAD_MODE 0
> > +#define TPG_DT_n_CFG_2_USER_SPECIFIED_PAYLOAD 4
> > +#define TPG_DT_n_CFG_2_ENCODE_FORMAT 16
> > +
> > +#define CSID_TPG_COLOR_BARS_CFG 0x640
> > +#define TPG_COLOR_BARS_CFG_UNICOLOR_BAR_EN 0
> > +#define TPG_COLOR_BARS_CFG_UNICOLOR_BAR_SEL 4
> > +#define TPG_COLOR_BARS_CFG_SPLIT_EN 5
> > +#define TPG_COLOR_BARS_CFG_ROTATE_PERIOD 8
> > +
> > +#define CSID_TPG_COLOR_BOX_CFG 0x644
> > +#define TPG_COLOR_BOX_CFG_MODE 0
> > +#define TPG_COLOR_BOX_PATTERN_SEL 2
> > +
> > +
> > +static const struct csid_format csid_formats[] = {
> > + {
> > + MEDIA_BUS_FMT_UYVY8_2X8,
> > + DATA_TYPE_YUV422_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 2,
> > + },
> > + {
> > + MEDIA_BUS_FMT_VYUY8_2X8,
> > + DATA_TYPE_YUV422_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 2,
> > + },
> > + {
> > + MEDIA_BUS_FMT_YUYV8_2X8,
> > + DATA_TYPE_YUV422_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 2,
> > + },
> > + {
> > + MEDIA_BUS_FMT_YVYU8_2X8,
> > + DATA_TYPE_YUV422_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 2,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SBGGR8_1X8,
> > + DATA_TYPE_RAW_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGBRG8_1X8,
> > + DATA_TYPE_RAW_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGRBG8_1X8,
> > + DATA_TYPE_RAW_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SRGGB8_1X8,
> > + DATA_TYPE_RAW_8BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_8_BIT,
> > + 8,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SBGGR10_1X10,
> > + DATA_TYPE_RAW_10BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_10_BIT,
> > + 10,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGBRG10_1X10,
> > + DATA_TYPE_RAW_10BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_10_BIT,
> > + 10,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGRBG10_1X10,
> > + DATA_TYPE_RAW_10BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_10_BIT,
> > + 10,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SRGGB10_1X10,
> > + DATA_TYPE_RAW_10BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_10_BIT,
> > + 10,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_Y10_1X10,
> > + DATA_TYPE_RAW_10BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_10_BIT,
> > + 10,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SBGGR12_1X12,
> > + DATA_TYPE_RAW_12BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_12_BIT,
> > + 12,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGBRG12_1X12,
> > + DATA_TYPE_RAW_12BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_12_BIT,
> > + 12,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGRBG12_1X12,
> > + DATA_TYPE_RAW_12BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_12_BIT,
> > + 12,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SRGGB12_1X12,
> > + DATA_TYPE_RAW_12BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_12_BIT,
> > + 12,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SBGGR14_1X14,
> > + DATA_TYPE_RAW_14BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_14_BIT,
> > + 14,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGBRG14_1X14,
> > + DATA_TYPE_RAW_14BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_14_BIT,
> > + 14,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SGRBG14_1X14,
> > + DATA_TYPE_RAW_14BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_14_BIT,
> > + 14,
> > + 1,
> > + },
> > + {
> > + MEDIA_BUS_FMT_SRGGB14_1X14,
> > + DATA_TYPE_RAW_14BIT,
> > + DECODE_FORMAT_UNCOMPRESSED_14_BIT,
> > + 14,
> > + 1,
> > + },
> > +};
> > +
> > +static void csid_configure_stream(struct csid_device *csid, u8 enable)
> > +{
> > + struct csid_testgen_config *tg = &csid->testgen;
> > + u32 val;
> > + u32 phy_sel = 0;
> > + u8 lane_cnt = csid->phy.lane_cnt;
> > + struct v4l2_mbus_framefmt *input_format =
> > + &csid->fmt[MSM_CSID_PAD_SRC];
> > + const struct csid_format *format = csid_get_fmt_entry(
> > + csid->formats, csid->nformats, input_format->code);
> > + if (!lane_cnt)
> > + lane_cnt = 4;
> > +
> > + if (!tg->enabled)
> > + phy_sel = csid->phy.csiphy_id;
> > +
> > + if (enable) {
> > + u8 vc = 0; /* Virtual Channel 0 */
> > + u8 dt_id = vc * 4;
> > +
> > + if (tg->enabled) {
> > + /* Config Test Generator */
> > + vc = 0xa;
> > +
> > + /* configure one DT, infinite frames */
> > + val = vc << TPG_VC_CFG0_VC_NUM;
> > + val |= INTELEAVING_MODE_ONE_SHOT << TPG_VC_CFG0_LINE_INTERLEAVING_MODE;
> > + val |= 0 << TPG_VC_CFG0_NUM_FRAMES;
> > + writel_relaxed(val, csid->base + CSID_TPG_VC_CFG0);
> > +
> > + val = 0x740 << TPG_VC_CFG1_H_BLANKING_COUNT;
> > + val |= 0x3ff << TPG_VC_CFG1_V_BLANKING_COUNT;
> > + writel_relaxed(val, csid->base + CSID_TPG_VC_CFG1);
> > +
> > + writel_relaxed(0x12345678, csid->base + CSID_TPG_LFSR_SEED);
> > +
> > + val = input_format->height & 0x1fff << TPG_DT_n_CFG_0_FRAME_HEIGHT;
> > + val |= input_format->width & 0x1fff << TPG_DT_n_CFG_0_FRAME_WIDTH;
> > + writel_relaxed(val, csid->base + CSID_TPG_DT_n_CFG_0(0));
> > +
> > + val = DATA_TYPE_RAW_10BIT << TPG_DT_n_CFG_1_DATA_TYPE;
> > + writel_relaxed(val, csid->base + CSID_TPG_DT_n_CFG_1(0));
> > +
> > + val = tg->mode << TPG_DT_n_CFG_2_PAYLOAD_MODE;
> > + val |= 0xBE << TPG_DT_n_CFG_2_USER_SPECIFIED_PAYLOAD;
> > + val |= format->decode_format << TPG_DT_n_CFG_2_ENCODE_FORMAT;
> > + writel_relaxed(val, csid->base + CSID_TPG_DT_n_CFG_2(0));
> > +
> > + writel_relaxed(0, csid->base + CSID_TPG_COLOR_BARS_CFG);
> > +
> > + writel_relaxed(0, csid->base + CSID_TPG_COLOR_BOX_CFG);
> > + }
> > +
> > + val = 1 << RDI_CFG0_BYTE_CNTR_EN;
> > + val |= 1 << RDI_CFG0_FORMAT_MEASURE_EN;
> > + val |= 1 << RDI_CFG0_TIMESTAMP_EN;
> > + val |= DECODE_FORMAT_PAYLOAD_ONLY << RDI_CFG0_DECODE_FORMAT;
> > + val |= DATA_TYPE_RAW_10BIT << RDI_CFG0_DATA_TYPE;
> > + val |= vc << RDI_CFG0_VIRTUAL_CHANNEL;
> > + val |= dt_id << RDI_CFG0_DT_ID;
> > + writel_relaxed(val, csid->base + CSID_RDI_CFG0(0));
> > +
> > + /* CSID_TIMESTAMP_STB_POST_IRQ */
> > + val = 2 << RDI_CFG1_TIMESTAMP_STB_SEL;
> > + writel_relaxed(val, csid->base + CSID_RDI_CFG1(0));
> > +
> > + val = 1;
> > + writel_relaxed(val, csid->base + CSID_RDI_FRM_DROP_PERIOD(0));
> > +
> > + val = 0;
> > + writel_relaxed(0, csid->base + CSID_RDI_FRM_DROP_PATTERN(0));
> > +
> > + val = 1;
> > + writel_relaxed(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PERIOD(0));
> > +
> > + val = 0;
> > + writel_relaxed(val, csid->base + CSID_RDI_IRQ_SUBSAMPLE_PATTERN(0));
> > +
> > + val = 1;
> > + writel_relaxed(val, csid->base + CSID_RDI_RPP_PIX_DROP_PERIOD(0));
> > +
> > + val = 0;
> > + writel_relaxed(val, csid->base + CSID_RDI_RPP_PIX_DROP_PATTERN(0));
> > +
> > + val = 1;
> > + writel_relaxed(val, csid->base + CSID_RDI_RPP_LINE_DROP_PERIOD(0));
> > +
> > + val = 0;
> > + writel_relaxed(val, csid->base + CSID_RDI_RPP_LINE_DROP_PATTERN(0));
> > +
> > + val = 0;
> > + writel_relaxed(val, csid->base + CSID_RDI_CTRL(0));
> > +
> > + val = readl_relaxed(csid->base + CSID_RDI_CFG0(0));
> > + val |= 1 << RDI_CFG0_ENABLE;
> > + writel_relaxed(val, csid->base + CSID_RDI_CFG0(0));
> > + }
> > +
> > + if (tg->enabled) {
> > + val = enable << TPG_CTRL_TEST_EN;
> > + val |= 1 << TPG_CTRL_FS_PKT_EN;
> > + val |= 1 << TPG_CTRL_FE_PKT_EN;
> > + val |= (lane_cnt - 1) << TPG_CTRL_NUM_ACTIVE_LANES;
> > + val |= 0x64 << TPG_CTRL_CYCLES_BETWEEN_PKTS;
> > + val |= 0xA << TPG_CTRL_NUM_TRAIL_BYTES;
> > + writel_relaxed(val, csid->base + CSID_TPG_CTRL);
> > + }
> > +
> > + val = (lane_cnt - 1) << CSI2_RX_CFG0_NUM_ACTIVE_LANES;
> > + val |= csid->phy.lane_assign << CSI2_RX_CFG0_DL0_INPUT_SEL;
> > + val |= phy_sel << CSI2_RX_CFG0_PHY_NUM_SEL;
> > + writel_relaxed(val, csid->base + CSID_CSI2_RX_CFG0);
> > +
> > +
> > + val = 1 << CSI2_RX_CFG1_PACKET_ECC_CORRECTION_EN;
> > + val |= 1 << CSI2_RX_CFG1_MISR_EN;
> > + writel_relaxed(val, csid->base + CSID_CSI2_RX_CFG1); // csi2_vc_mode_shift_val ?
> > +
> > + /* error irqs start at BIT(11) */
> > + writel_relaxed(~0u, csid->base + CSID_CSI2_RX_IRQ_MASK);
> > +
> > + /* RDI irq */
> > + writel_relaxed(~0u, csid->base + CSID_TOP_IRQ_MASK);
> > +
> > + val = 1 << RDI_CTRL_HALT_CMD;
> > + writel_relaxed(val, csid->base + CSID_RDI_CTRL(0));
> > +}
> > +
> > +static int csid_configure_testgen_pattern(struct csid_device *csid, s32 val)
>
> Here (val == 0) means "testgen disabled", and (val >= 1) selects the test
> pattern: (val == 1) corresponds to CSID_PAYLOAD_MODE_INCREMENTING etc.
>
> > +{
> > + s32 regval = val - 1;
>
> - now regval contains the zero-based test pattern mode number
>
> > + if (regval > 0 || regval <= CSID_PAYLOAD_MODE_MAX_SUPPORTED_170)
>
> - by excluding regval of zero you made it impossible to select
> CSID_PAYLOAD_MODE_INCREMENTING, didn't you?
> It looks like the above line of code should be:
>
> if (regval >= 0 || regval <= CSID_PAYLOAD_MODE_MAX_SUPPORTED_170)

Yep, you're right. Let me fix that.

>
> With this sorted out,
>
> Reviewed-by: Andrey Konovalov <andrey.konovalov@linaro.org>
>
> Thanks,
> Andrey
>
> > + csid->testgen.mode = regval;
> > +
> > + return 0;
> > +}
> > +
> > +/*
> > + * csid_hw_version - CSID hardware version query
> > + * @csid: CSID device
> > + *
> > + * Return HW version or error
> > + */
> > +static u32 csid_hw_version(struct csid_device *csid)
> > +{
> > + u32 hw_version;
> > + u32 hw_gen;
> > + u32 hw_rev;
> > + u32 hw_step;
> > +
> > + hw_version = readl_relaxed(csid->base + CSID_HW_VERSION);
> > + hw_gen = (hw_version >> HW_VERSION_GENERATION) & 0xF;
> > + hw_rev = (hw_version >> HW_VERSION_REVISION) & 0xFFF;
> > + hw_step = (hw_version >> HW_VERSION_STEPPING) & 0xFFFF;
> > + dev_dbg(csid->camss->dev, "CSID HW Version = %u.%u.%u\n",
> > + hw_gen, hw_rev, hw_step);
> > +
> > + return hw_version;
> > +}
> > +
> > +/*
> > + * csid_isr - CSID module interrupt service routine
> > + * @irq: Interrupt line
> > + * @dev: CSID device
> > + *
> > + * Return IRQ_HANDLED on success
> > + */
> > +static irqreturn_t csid_isr(int irq, void *dev)
> > +{
> > + struct csid_device *csid = dev;
> > + u32 val;
> > + u8 reset_done;
> > +
> > + val = readl_relaxed(csid->base + CSID_TOP_IRQ_STATUS);
> > + writel_relaxed(val, csid->base + CSID_TOP_IRQ_CLEAR);
> > + reset_done = val & BIT(TOP_IRQ_STATUS_RESET_DONE);
> > +
> > + val = readl_relaxed(csid->base + CSID_CSI2_RX_IRQ_STATUS);
> > + writel_relaxed(val, csid->base + CSID_CSI2_RX_IRQ_CLEAR);
> > +
> > + val = readl_relaxed(csid->base + CSID_CSI2_RDIN_IRQ_STATUS(0));
> > + writel_relaxed(val, csid->base + CSID_CSI2_RDIN_IRQ_CLEAR(0));
> > +
> > + val = 1 << IRQ_CMD_CLEAR;
> > + writel_relaxed(val, csid->base + CSID_IRQ_CMD);
> > +
> > + if (reset_done)
> > + complete(&csid->reset_complete);
> > +
> > + return IRQ_HANDLED;
> > +}
> > +
> > +/*
> > + * csid_reset - Trigger reset on CSID module and wait to complete
> > + * @csid: CSID device
> > + *
> > + * Return 0 on success or a negative error code otherwise
> > + */
> > +static int csid_reset(struct csid_device *csid)
> > +{
> > + unsigned long time;
> > + u32 val;
> > +
> > + reinit_completion(&csid->reset_complete);
> > +
> > + writel_relaxed(1, csid->base + CSID_TOP_IRQ_CLEAR);
> > + writel_relaxed(1, csid->base + CSID_IRQ_CMD);
> > + writel_relaxed(1, csid->base + CSID_TOP_IRQ_MASK);
> > + writel_relaxed(1, csid->base + CSID_IRQ_CMD);
> > +
> > + /* preserve registers */
> > + val = 0x1e << RST_STROBES;
> > + writel_relaxed(val, csid->base + CSID_RST_STROBES);
> > +
> > + time = wait_for_completion_timeout(&csid->reset_complete,
> > + msecs_to_jiffies(CSID_RESET_TIMEOUT_MS));
> > + if (!time) {
> > + dev_err(csid->camss->dev, "CSID reset timeout\n");
> > + return -EIO;
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static u32 csid_src_pad_code(struct csid_device *csid, u32 sink_code,
> > + unsigned int match_format_idx, u32 match_code)
> > +{
> > + switch (sink_code) {
> > + case MEDIA_BUS_FMT_SBGGR10_1X10:
> > + {
> > + u32 src_code[] = {
> > + MEDIA_BUS_FMT_SBGGR10_1X10,
> > + MEDIA_BUS_FMT_SBGGR10_2X8_PADHI_LE,
> > + };
> > +
> > + return csid_find_code(src_code, ARRAY_SIZE(src_code),
> > + match_format_idx, match_code);
> > + }
> > + case MEDIA_BUS_FMT_Y10_1X10:
> > + {
> > + u32 src_code[] = {
> > + MEDIA_BUS_FMT_Y10_1X10,
> > + MEDIA_BUS_FMT_Y10_2X8_PADHI_LE,
> > + };
> > +
> > + return csid_find_code(src_code, ARRAY_SIZE(src_code),
> > + match_format_idx, match_code);
> > + }
> > + default:
> > + if (match_format_idx > 0)
> > + return 0;
> > +
> > + return sink_code;
> > + }
> > +}
> > +
> > +static void csid_subdev_init(struct csid_device *csid)
> > +{
> > + csid->formats = csid_formats;
> > + csid->nformats = ARRAY_SIZE(csid_formats);
> > + csid->testgen.modes = csid_testgen_modes;
> > + csid->testgen.nmodes = CSID_PAYLOAD_MODE_MAX_SUPPORTED_170;
> > +}
> > +
> > +const struct csid_hw_ops csid_ops_170 = {
> > + .configure_stream = csid_configure_stream,
> > + .configure_testgen_pattern = csid_configure_testgen_pattern,
> > + .hw_version = csid_hw_version,
> > + .isr = csid_isr,
> > + .reset = csid_reset,
> > + .src_pad_code = csid_src_pad_code,
> > + .subdev_init = csid_subdev_init,
> > +};
> > diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c
> > index 601bd810f2b0..294a0a9e4dfa 100644
> > --- a/drivers/media/platform/qcom/camss/camss-csid.c
> > +++ b/drivers/media/platform/qcom/camss/camss-csid.c
> > @@ -123,6 +123,8 @@ static int csid_set_clock_rates(struct csid_device *csid)
> > dev_err(dev, "clk set rate failed: %d\n", ret);
> > return ret;
> > }
> > + } else if (clock->nfreqs) {
> > + clk_set_rate(clock->clk, clock->freq[0]);
> > }
> > }
> >
> > @@ -544,6 +546,8 @@ int msm_csid_subdev_init(struct camss *camss, struct csid_device *csid,
> > } else if (camss->version == CAMSS_8x96 ||
> > camss->version == CAMSS_660) {
> > csid->ops = &csid_ops_4_7;
> > + } else if (camss->version == CAMSS_845) {
> > + csid->ops = &csid_ops_170;
> > } else {
> > return -EINVAL;
> > }
> > diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h
> > index d40194e2bed3..49a6b5492403 100644
> > --- a/drivers/media/platform/qcom/camss/camss-csid.h
> > +++ b/drivers/media/platform/qcom/camss/camss-csid.h
> > @@ -245,5 +245,7 @@ void msm_csid_get_csid_id(struct media_entity *entity, u8 *id);
> >
> > extern const struct csid_hw_ops csid_ops_4_1;
> > extern const struct csid_hw_ops csid_ops_4_7;
> > +extern const struct csid_hw_ops csid_ops_170;
> > +
> >
> > #endif /* QC_MSM_CAMSS_CSID_H */
> > diff --git a/drivers/media/platform/qcom/camss/camss-vfe-170.c b/drivers/media/platform/qcom/camss/camss-vfe-170.c
> > index c4991b1f22f8..9ddc30a73868 100644
> > --- a/drivers/media/platform/qcom/camss/camss-vfe-170.c
> > +++ b/drivers/media/platform/qcom/camss/camss-vfe-170.c
> > @@ -274,7 +274,6 @@ static void vfe_wm_start(struct vfe_device *vfe, u8 wm, struct vfe_line *line)
> > writel_relaxed(val, vfe->base + VFE_BUS_WM_PACKER_CFG(wm)); // XXX 1 for PLAIN8?
> >
> > /* Configure stride for RDIs */
> > - //val = pix->plane_fmt[0].bytesperline;
> > val = WM_STRIDE_DEFAULT_STRIDE;
> > writel_relaxed(val, vfe->base + VFE_BUS_WM_STRIDE(wm));
> >
> > diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
> > index 0e006def1996..0b1693c34fbc 100644
> > --- a/drivers/media/platform/qcom/camss/camss.c
> > +++ b/drivers/media/platform/qcom/camss/camss.c
> > @@ -465,6 +465,68 @@ static const struct resources vfe_res_660[] = {
> > }
> > };
> >
> > +static const struct resources csid_res_845[] = {
> > + /* CSID0 */
> > + {
> > + .regulator = { "vdda-csi0" },
> > + .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src",
> > + "soc_ahb", "vfe0", "vfe0_src",
> > + "vfe0_cphy_rx", "csi0",
> > + "csi0_src" },
> > + .clock_rate = { { 0 },
> > + { 384000000 },
> > + { 80000000 },
> > + { 0 },
> > + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 },
> > + { 320000000 },
> > + { 0 },
> > + { 19200000, 75000000, 384000000, 538666667 },
> > + { 384000000 } },
> > + .reg = { "csid0" },
> > + .interrupt = { "csid0" }
> > + },
> > +
> > + /* CSID1 */
> > + {
> > + .regulator = { "vdda-csi1" },
> > + .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src",
> > + "soc_ahb", "vfe1", "vfe1_src",
> > + "vfe1_cphy_rx", "csi1",
> > + "csi1_src" },
> > + .clock_rate = { { 0 },
> > + { 384000000 },
> > + { 80000000 },
> > + { 0 },
> > + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 },
> > + { 320000000 },
> > + { 0 },
> > + { 19200000, 75000000, 384000000, 538666667 },
> > + { 384000000 } },
> > + .reg = { "csid1" },
> > + .interrupt = { "csid1" }
> > + },
> > +
> > + /* CSID2 */
> > + {
> > + .regulator = { "vdda-csi2" },
> > + .clock = { "cpas_ahb", "cphy_rx_src", "slow_ahb_src",
> > + "soc_ahb", "vfe_lite", "vfe_lite_src",
> > + "vfe_lite_cphy_rx", "csi2",
> > + "csi2_src" },
> > + .clock_rate = { { 0 },
> > + { 384000000 },
> > + { 80000000 },
> > + { 0 },
> > + { 19200000, 100000000, 320000000, 404000000, 480000000, 600000000 },
> > + { 320000000 },
> > + { 0 },
> > + { 19200000, 75000000, 384000000, 538666667 },
> > + { 384000000 } },
> > + .reg = { "csid2" },
> > + .interrupt = { "csid2" }
> > + }
> > +};
> > +
> > static const struct resources vfe_res_845[] = {
> > /* VFE0 */
> > {
> >

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