Hey Jonathan,
Thanks for sending this out.
There are a few checkpatch --strict warnings/etc. in this patch. I
won't cover them individually below.
On Tue, 11 May 2021 at 20:08, Jonathan Marek <jonathan@xxxxxxxx> wrote:
>
> Add support for VFE found on SM8250 (Titan 480). This implementation is
> based on the titan 170 implementation. It supports the normal and lite VFE,
> and only supports the RDI0 capture path.
>
> Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx>
> ---
> drivers/media/platform/qcom/camss/Makefile | 1 +
> .../media/platform/qcom/camss/camss-vfe-480.c | 554 ++++++++++++++++++
> drivers/media/platform/qcom/camss/camss-vfe.h | 1 +
> 3 files changed, 556 insertions(+)
> create mode 100644 drivers/media/platform/qcom/camss/camss-vfe-480.c
>
> diff --git a/drivers/media/platform/qcom/camss/Makefile b/drivers/media/platform/qcom/camss/Makefile
> index 0752c46ea37b..81dd56aff0f2 100644
> --- a/drivers/media/platform/qcom/camss/Makefile
> +++ b/drivers/media/platform/qcom/camss/Makefile
> @@ -15,6 +15,7 @@ qcom-camss-objs += \
> camss-vfe-4-7.o \
> camss-vfe-4-8.o \
> camss-vfe-170.o \
> + camss-vfe-480.o \
> camss-vfe-gen1.o \
> camss-vfe.o \
> camss-video.o \
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-480.c b/drivers/media/platform/qcom/camss/camss-vfe-480.c
> new file mode 100644
> index 000000000000..79210fabbc2a
> --- /dev/null
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-480.c
> @@ -0,0 +1,554 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * camss-vfe-480.c
> + *
> + * Qualcomm MSM Camera Subsystem - VFE (Video Front End) Module v480 (SM8250)
> + *
> + * Copyright (C) 2020-2021 Linaro Ltd.
> + * Copyright (C) 2021 Jonathan Marek
> + */
> +
> +#include <linux/delay.h>
> +#include <linux/interrupt.h>
> +#include <linux/io.h>
> +#include <linux/iopoll.h>
> +
> +#include "camss.h"
> +#include "camss-vfe.h"
> +
> +/* VFE 2/3 are lite and have a different register layout */
> +#define IS_LITE (vfe->id >= 2 ? 1 : 0)
> +
> +#define VFE_HW_VERSION (0x00)
> +
> +#define VFE_GLOBAL_RESET_CMD (IS_LITE ? 0x0c : 0x1c)
> +#define GLOBAL_RESET_HW_AND_REG (IS_LITE ? BIT(1) : BIT(0))
> +
> +#define VFE_REG_UPDATE_CMD (IS_LITE ? 0x20 : 0x34)
> +#define REG_UPDATE_RDI(n) (IS_LITE ? BIT(n) : BIT(1 + (n)))
> +#define VFE_IRQ_CMD (IS_LITE ? 0x24 : 0x38)
> +#define IRQ_CMD_GLOBAL_CLEAR BIT(0)
> +
> +#define VFE_IRQ_MASK(n) ((IS_LITE ? 0x28 : 0x3c) + (n) * 4)
> +#define IRQ_MASK_0_RESET_ACK (IS_LITE ? BIT(17) : BIT(0))
> +#define IRQ_MASK_0_BUS_TOP_IRQ (IS_LITE ? BIT(4) : BIT(7))
> +#define VFE_IRQ_CLEAR(n) ((IS_LITE ? 0x34 : 0x48) + (n) * 4)
> +#define VFE_IRQ_STATUS(n) ((IS_LITE ? 0x40 : 0x54) + (n) * 4)
> +
> +#define BUS_REG_BASE (IS_LITE ? 0x1a00 : 0xaa00)
> +
> +#define VFE_BUS_WM_CGC_OVERRIDE (BUS_REG_BASE + 0x08)
> +#define WM_CGC_OVERRIDE_ALL (0x3FFFFFF)
> +
> +#define VFE_BUS_WM_TEST_BUS_CTRL (BUS_REG_BASE + 0xdc)
> +
> +#define VFE_BUS_IRQ_MASK(n) (BUS_REG_BASE + 0x18 + (n) * 4)
> +#define BUS_IRQ_MASK_0_RDI_RUP(n) (IS_LITE ? BIT(n) : BIT(3 + (n)))
> +#define BUS_IRQ_MASK_0_COMP_DONE(n) (IS_LITE ? BIT(4 + (n)) : BIT(6 + (n)))
> +#define VFE_BUS_IRQ_CLEAR(n) (BUS_REG_BASE + 0x20 + (n) * 4)
> +#define VFE_BUS_IRQ_STATUS(n) (BUS_REG_BASE + 0x28 + (n) * 4)
> +#define VFE_BUS_IRQ_CLEAR_GLOBAL (BUS_REG_BASE + 0x30)
> +
> +#define VFE_BUS_WM_CFG(n) (BUS_REG_BASE + 0x200 + (n) * 0x100)
> +#define WM_CFG_EN (0)
> +#define WM_CFG_MODE (16)
> +#define MODE_QCOM_PLAIN (0)
> +#define MODE_MIPI_RAW (1)
> +#define VFE_BUS_WM_IMAGE_ADDR(n) (BUS_REG_BASE + 0x204 + (n) * 0x100)
> +#define VFE_BUS_WM_FRAME_INCR(n) (BUS_REG_BASE + 0x208 + (n) * 0x100)
> +#define VFE_BUS_WM_IMAGE_CFG_0(n) (BUS_REG_BASE + 0x20c + (n) * 0x100)
> +#define WM_IMAGE_CFG_0_DEFAULT_WIDTH (0xFFFF)
> +#define VFE_BUS_WM_IMAGE_CFG_1(n) (BUS_REG_BASE + 0x210 + (n) * 0x100)
> +#define VFE_BUS_WM_IMAGE_CFG_2(n) (BUS_REG_BASE + 0x214 + (n) * 0x100)
> +#define VFE_BUS_WM_PACKER_CFG(n) (BUS_REG_BASE + 0x218 + (n) * 0x100)
> +#define VFE_BUS_WM_HEADER_ADDR(n) (BUS_REG_BASE + 0x220 + (n) * 0x100)
> +#define VFE_BUS_WM_HEADER_INCR(n) (BUS_REG_BASE + 0x224 + (n) * 0x100)
> +#define VFE_BUS_WM_HEADER_CFG(n) (BUS_REG_BASE + 0x228 + (n) * 0x100)
> +
> +#define VFE_BUS_WM_IRQ_SUBSAMPLE_PERIOD(n) (BUS_REG_BASE + 0x230 + (n) * 0x100)
> +#define VFE_BUS_WM_IRQ_SUBSAMPLE_PATTERN(n) (BUS_REG_BASE + 0x234 + (n) * 0x100)
> +#define VFE_BUS_WM_FRAMEDROP_PERIOD(n) (BUS_REG_BASE + 0x238 + (n) * 0x100)
> +#define VFE_BUS_WM_FRAMEDROP_PATTERN(n) (BUS_REG_BASE + 0x23c + (n) * 0x100)
> +
> +#define VFE_BUS_WM_SYSTEM_CACHE_CFG(n) (BUS_REG_BASE + 0x260 + (n) * 0x100)
> +#define VFE_BUS_WM_BURST_LIMIT(n) (BUS_REG_BASE + 0x264 + (n) * 0x100)
> +
> +/* for titan 480, each bus client is hardcoded to a specific path
> + * and each bus client is part of a hardcoded "comp group"
> + */
> +#define RDI_WM(n) ((IS_LITE ? 0 : 23) + n)
> +#define RDI_COMP_GROUP(n) ((IS_LITE ? 0 : 11) + n)
The indentation of the different types of defines above differ from
vfe170, but I kind of prefer this style. Feel free to change either.
> +
> +static void vfe_hw_version_read(struct vfe_device *vfe, struct device *dev)
> +{
> + u32 hw_version = readl_relaxed(vfe->base + VFE_HW_VERSION);
> +
> + u32 gen = (hw_version >> 28) & 0xF;
> + u32 rev = (hw_version >> 16) & 0xFFF;
> + u32 step = hw_version & 0xFFFF;
> +
> + dev_dbg(dev, "VFE HW Version = %u.%u.%u\n", gen, rev, step);
> +}
> +
> +static void vfe_global_reset(struct vfe_device *vfe)
> +{
> + writel_relaxed(IRQ_MASK_0_RESET_ACK, vfe->base + VFE_IRQ_MASK(0));
> + writel_relaxed(GLOBAL_RESET_HW_AND_REG, vfe->base + VFE_GLOBAL_RESET_CMD);
> +}
> +
> +static void vfe_wm_start(struct vfe_device *vfe, u8 wm, struct vfe_line *line)
> +{
> + struct v4l2_pix_format_mplane *pix =
> + &line->video_out.active_fmt.fmt.pix_mp;
> +
> + wm = RDI_WM(wm); /* map to actual WM used (from wm=RDI index) */
> +
> + /* no clock gating at bus input */
> + writel_relaxed(WM_CGC_OVERRIDE_ALL, vfe->base + VFE_BUS_WM_CGC_OVERRIDE);
> +
> + writel_relaxed(0x0, vfe->base + VFE_BUS_WM_TEST_BUS_CTRL);
> +
> + writel_relaxed(pix->plane_fmt[0].bytesperline * pix->height,
> + vfe->base + VFE_BUS_WM_FRAME_INCR(wm));
> + writel_relaxed(0xf, vfe->base + VFE_BUS_WM_BURST_LIMIT(wm));
> + writel_relaxed(WM_IMAGE_CFG_0_DEFAULT_WIDTH,
> + vfe->base + VFE_BUS_WM_IMAGE_CFG_0(wm));
> + writel_relaxed(pix->plane_fmt[0].bytesperline,
> + vfe->base + VFE_BUS_WM_IMAGE_CFG_2(wm));
> + writel_relaxed(0, vfe->base + VFE_BUS_WM_PACKER_CFG(wm));
^^^ using more of the 130char line length is probably better for legibility.
> +
> + /* no dropped frames, one irq per frame */
> + writel_relaxed(0, vfe->base + VFE_BUS_WM_FRAMEDROP_PERIOD(wm));
> + writel_relaxed(1, vfe->base + VFE_BUS_WM_FRAMEDROP_PATTERN(wm));
> + writel_relaxed(0, vfe->base + VFE_BUS_WM_IRQ_SUBSAMPLE_PERIOD(wm));
> + writel_relaxed(1, vfe->base + VFE_BUS_WM_IRQ_SUBSAMPLE_PATTERN(wm));
> +
> + writel_relaxed(1 << WM_CFG_EN | MODE_MIPI_RAW << WM_CFG_MODE,
> + vfe->base + VFE_BUS_WM_CFG(wm));
> +}
> +
> +static void vfe_wm_stop(struct vfe_device *vfe, u8 wm)
> +{
> + wm = RDI_WM(wm); /* map to actual WM used (from wm=RDI index) */
> + writel_relaxed(0, vfe->base + VFE_BUS_WM_CFG(wm));
> +}
> +
> +static void vfe_wm_update(struct vfe_device *vfe, u8 wm, u32 addr,
> + struct vfe_line *line)
> +{
> + wm = RDI_WM(wm); /* map to actual WM used (from wm=RDI index) */
> + writel_relaxed(addr, vfe->base + VFE_BUS_WM_IMAGE_ADDR(wm));
> +}
> +
> +static void vfe_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
> +{
> + vfe->reg_update |= REG_UPDATE_RDI(line_id);
> + writel_relaxed(vfe->reg_update, vfe->base + VFE_REG_UPDATE_CMD);
> +}
> +
> +static inline void vfe_reg_update_clear(struct vfe_device *vfe,
> + enum vfe_line_id line_id)
> +{
> + vfe->reg_update &= ~REG_UPDATE_RDI(line_id);
> +}
> +
> +static void vfe_enable_irq_common(struct vfe_device *vfe)
> +{
> + /* enable only the IRQs used: rup and comp_done irqs for RDI0 */
> + writel_relaxed(IRQ_MASK_0_RESET_ACK | IRQ_MASK_0_BUS_TOP_IRQ,
> + vfe->base + VFE_IRQ_MASK(0));
> + writel_relaxed(BUS_IRQ_MASK_0_RDI_RUP(0) |
> + BUS_IRQ_MASK_0_COMP_DONE(RDI_COMP_GROUP(0)),
> + vfe->base + VFE_BUS_IRQ_MASK(0));
> +}
> +
> +/*
> + * vfe_isr - VFE module interrupt handler
> + * @irq: Interrupt line
> + * @dev: VFE device
> + *
> + * Return IRQ_HANDLED on success
> + */
> +static irqreturn_t vfe_isr(int irq, void *dev)
> +{
> + struct vfe_device *vfe = dev;
> + u32 status;
> +
> + status = readl_relaxed(vfe->base + VFE_IRQ_STATUS(0));
> + writel_relaxed(status, vfe->base + VFE_IRQ_CLEAR(0));
> + writel_relaxed(IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_IRQ_CMD);
> +
> + if (status & IRQ_MASK_0_RESET_ACK)
> + vfe->isr_ops.reset_ack(vfe);
> +
> + if (status & IRQ_MASK_0_BUS_TOP_IRQ) {
> + u32 status = readl_relaxed(vfe->base + VFE_BUS_IRQ_STATUS(0));
> + writel_relaxed(status, vfe->base + VFE_BUS_IRQ_CLEAR(0));
> + writel_relaxed(1, vfe->base + VFE_BUS_IRQ_CLEAR_GLOBAL);
> +
> + if (status & BUS_IRQ_MASK_0_RDI_RUP(0))
> + vfe->isr_ops.reg_update(vfe, 0);
> +
> + if (status & BUS_IRQ_MASK_0_COMP_DONE(RDI_COMP_GROUP(0)))
> + vfe->isr_ops.wm_done(vfe, 0);
COMP_DONE is signalled in the status register, but wm_done() is
called. comp_done() seems to never be called.
> + }
> +
> + return IRQ_HANDLED;
> +}
> +
> +/*
> + * vfe_halt - Trigger halt on VFE module and wait to complete
> + * @vfe: VFE device
> + *
> + * Return 0 on success or a negative error code otherwise
> + */
> +static int vfe_halt(struct vfe_device *vfe)
> +{
> + /* rely on vfe_disable_output() to stop the VFE */
> + return 0;
> +}
> +
> +static int vfe_get_output(struct vfe_line *line)
> +{
> + struct vfe_device *vfe = to_vfe(line);
> + struct vfe_output *output;
> + unsigned long flags;
> + int wm_idx;
> +
> + spin_lock_irqsave(&vfe->output_lock, flags);
> +
> + output = &line->output;
> + if (output->state != VFE_OUTPUT_OFF) {
> + dev_err(vfe->camss->dev, "Output is running\n");
> + goto error;
> + }
> +
> + output->wm_num = 1;
> +
> + wm_idx = vfe_reserve_wm(vfe, line->id);
> + if (wm_idx < 0) {
> + dev_err(vfe->camss->dev, "Can not reserve wm\n");
> + goto error_get_wm;
> + }
> + output->wm_idx[0] = wm_idx;
> +
> + output->drop_update_idx = 0;
> +
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +
> + return 0;
> +
> +error_get_wm:
> + vfe_release_wm(vfe, output->wm_idx[0]);
> + output->state = VFE_OUTPUT_OFF;
> +error:
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +
> + return -EINVAL;
> +}
> +
> +static int vfe_enable_output(struct vfe_line *line)
> +{
> + struct vfe_device *vfe = to_vfe(line);
> + struct vfe_output *output = &line->output;
> + const struct vfe_hw_ops *ops = vfe->ops;
> + unsigned long flags;
> + unsigned int i;
> +
> + spin_lock_irqsave(&vfe->output_lock, flags);
> +
> + ops->reg_update_clear(vfe, line->id);
> +
> + if (output->state != VFE_OUTPUT_OFF) {
> + dev_err(vfe->camss->dev, "Output is not in reserved state %d\n",
> + output->state);
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> + return -EINVAL;
> + }
> +
> + WARN_ON(output->gen2.active_num);
> +
> + output->state = VFE_OUTPUT_ON;
> +
> + output->sequence = 0;
> + output->wait_reg_update = 0;
> + reinit_completion(&output->reg_update);
> +
> + vfe_wm_start(vfe, output->wm_idx[0], line);
> +
> + for (i = 0; i < 2; i++) {
> + output->buf[i] = vfe_buf_get_pending(output);
> + if (!output->buf[i])
> + break;
> + output->gen2.active_num++;
> + vfe_wm_update(vfe, output->wm_idx[0], output->buf[i]->addr[0], line);
> + }
> +
> + ops->reg_update(vfe, line->id);
> +
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +
> + return 0;
> +}
> +
> +static int vfe_disable_output(struct vfe_line *line)
> +{
> + struct vfe_device *vfe = to_vfe(line);
> + struct vfe_output *output = &line->output;
> + unsigned long flags;
> + unsigned int i;
> + bool done;
> + int timeout = 0;
> +
> + do {
> + spin_lock_irqsave(&vfe->output_lock, flags);
> + done = !output->gen2.active_num;
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> + usleep_range(10000, 20000);
> +
> + if (timeout++ == 100) {
> + dev_err(vfe->camss->dev, "VFE idle timeout - resetting\n");
> + vfe_reset(vfe);
> + output->gen2.active_num = 0;
> + return 0;
> + }
> + } while (!done);
> +
> + spin_lock_irqsave(&vfe->output_lock, flags);
> + for (i = 0; i < output->wm_num; i++)
> + vfe_wm_stop(vfe, output->wm_idx[i]);
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +
> + return 0;
> +}
> +
> +/*
> + * vfe_enable - Enable streaming on VFE line
> + * @line: VFE line
> + *
> + * Return 0 on success or a negative error code otherwise
> + */
> +static int vfe_enable(struct vfe_line *line)
> +{
> + struct vfe_device *vfe = to_vfe(line);
> + int ret;
> +
> + mutex_lock(&vfe->stream_lock);
> +
> + if (!vfe->stream_count)
> + vfe_enable_irq_common(vfe);
> +
> + vfe->stream_count++;
> +
> + mutex_unlock(&vfe->stream_lock);
> +
> + ret = vfe_get_output(line);
> + if (ret < 0)
> + goto error_get_output;
> +
> + ret = vfe_enable_output(line);
> + if (ret < 0)
> + goto error_enable_output;
> +
> + vfe->was_streaming = 1;
> +
> + return 0;
> +
> +error_enable_output:
> + vfe_put_output(line);
> +
> +error_get_output:
> + mutex_lock(&vfe->stream_lock);
> +
> + vfe->stream_count--;
> +
> + mutex_unlock(&vfe->stream_lock);
> +
> + return ret;
> +}
> +
> +/*
> + * vfe_disable - Disable streaming on VFE line
> + * @line: VFE line
> + *
> + * Return 0 on success or a negative error code otherwise
> + */
> +static int vfe_disable(struct vfe_line *line)
> +{
> + struct vfe_device *vfe = to_vfe(line);
> +
> + vfe_disable_output(line);
> +
> + vfe_put_output(line);
> +
> + mutex_lock(&vfe->stream_lock);
> +
> + vfe->stream_count--;
> +
> + mutex_unlock(&vfe->stream_lock);
> +
> + return 0;
> +}
> +
> +/*
> + * vfe_isr_reg_update - Process reg update interrupt
> + * @vfe: VFE Device
> + * @line_id: VFE line
> + */
> +static void vfe_isr_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
> +{
> + struct vfe_output *output;
> + unsigned long flags;
> +
> + spin_lock_irqsave(&vfe->output_lock, flags);
> + vfe->ops->reg_update_clear(vfe, line_id);
> +
> + output = &vfe->line[line_id].output;
> +
> + if (output->wait_reg_update) {
> + output->wait_reg_update = 0;
> + complete(&output->reg_update);
> + }
> +
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +}
> +
> +/*
> + * vfe_isr_wm_done - Process write master done interrupt
> + * @vfe: VFE Device
> + * @wm: Write master id
> + */
> +static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm)
> +{
> + struct vfe_line *line = &vfe->line[vfe->wm_output_map[wm]];
> + struct camss_buffer *ready_buf;
> + struct vfe_output *output;
> + unsigned long flags;
> + u32 index;
> + u64 ts = ktime_get_ns();
> +
> + spin_lock_irqsave(&vfe->output_lock, flags);
> +
> + if (vfe->wm_output_map[wm] == VFE_LINE_NONE) {
> + dev_err_ratelimited(vfe->camss->dev,
> + "Received wm done for unmapped index\n");
> + goto out_unlock;
> + }
> + output = &vfe->line[vfe->wm_output_map[wm]].output;
> +
> + ready_buf = output->buf[0];
> + if (!ready_buf) {
> + dev_err_ratelimited(vfe->camss->dev,
> + "Missing ready buf %d!\n", output->state);
> + goto out_unlock;
> + }
> +
> + ready_buf->vb.vb2_buf.timestamp = ts;
> + ready_buf->vb.sequence = output->sequence++;
> +
> + index = 0;
> + output->buf[0] = output->buf[1];
> + if (output->buf[0])
> + index = 1;
> +
> + output->buf[index] = vfe_buf_get_pending(output);
> +
> + if (output->buf[index])
> + vfe_wm_update(vfe, output->wm_idx[0], output->buf[index]->addr[0], line);
> + else
> + output->gen2.active_num--;
> +
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +
> + vb2_buffer_done(&ready_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
> +
> + return;
> +
> +out_unlock:
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +}
> +
> +/*
> + * vfe_pm_domain_off - Disable power domains specific to this VFE.
> + * @vfe: VFE Device
> + */
> +static void vfe_pm_domain_off(struct vfe_device *vfe)
> +{
> + /* nop */
> +}
> +
> +/*
> + * vfe_pm_domain_on - Enable power domains specific to this VFE.
> + * @vfe: VFE Device
> + */
> +static int vfe_pm_domain_on(struct vfe_device *vfe)
> +{
> + return 0;
> +}
> +
> +/*
> + * vfe_queue_buffer - Add empty buffer
> + * @vid: Video device structure
> + * @buf: Buffer to be enqueued
> + *
> + * Add an empty buffer - depending on the current number of buffers it will be
> + * put in pending buffer queue or directly given to the hardware to be filled.
> + *
> + * Return 0 on success or a negative error code otherwise
> + */
> +static int vfe_queue_buffer(struct camss_video *vid,
> + struct camss_buffer *buf)
> +{
> + struct vfe_line *line = container_of(vid, struct vfe_line, video_out);
> + struct vfe_device *vfe = to_vfe(line);
> + struct vfe_output *output;
> + unsigned long flags;
> +
> + output = &line->output;
> +
> + spin_lock_irqsave(&vfe->output_lock, flags);
> +
> + if (output->state == VFE_OUTPUT_ON && output->gen2.active_num < 2) {
> + output->buf[output->gen2.active_num++] = buf;
> + vfe_wm_update(vfe, output->wm_idx[0], buf->addr[0], line);
> + } else {
> + vfe_buf_add_pending(output, buf);
> + }
> +
> + spin_unlock_irqrestore(&vfe->output_lock, flags);
> +
> + return 0;
> +}
> +
> +static const struct vfe_isr_ops vfe_isr_ops_480 = {
> + .reset_ack = vfe_isr_reset_ack,
> + .reg_update = vfe_isr_reg_update,
> + .comp_done = vfe_isr_comp_done,
> + .wm_done = vfe_isr_wm_done,
> +};
> +
> +static const struct camss_video_ops vfe_video_ops_480 = {
> + .queue_buffer = vfe_queue_buffer,
> + .flush_buffers = vfe_flush_buffers,
> +};
> +
> +static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
> +{
> + vfe->isr_ops = vfe_isr_ops_480;
> + vfe->video_ops = vfe_video_ops_480;
> + vfe->line_num = 1;
> +}
> +
> +const struct vfe_hw_ops vfe_ops_480 = {
> + .global_reset = vfe_global_reset,
> + .hw_version_read = vfe_hw_version_read,
> + .isr = vfe_isr,
> + .pm_domain_off = vfe_pm_domain_off,
> + .pm_domain_on = vfe_pm_domain_on,
> + .reg_update_clear = vfe_reg_update_clear,
> + .reg_update = vfe_reg_update,
> + .subdev_init = vfe_subdev_init,
> + .vfe_disable = vfe_disable,
> + .vfe_enable = vfe_enable,
> + .vfe_halt = vfe_halt,
> +};
Again there are some functions that could be refactored out to a vfe
gen2 parent struct & object. This time I think it's worth refactoring
out the common code, especially since we know more platforms based on
this architecture are coming.
vfe_queue_buffer
vfe_pm_domain_on
vfe_pm_domain_off
vfe_isr_wm_done
vfe_isr_reg_update
vfe_get_output (although vfe170 contains a frame_skip chunk that
should be removed)
vfe_halt
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
> index 844b9275031d..83b11ae1572d 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe.h
> +++ b/drivers/media/platform/qcom/camss/camss-vfe.h
> @@ -201,5 +201,6 @@ extern const struct vfe_hw_ops vfe_ops_4_1;
> extern const struct vfe_hw_ops vfe_ops_4_7;
> extern const struct vfe_hw_ops vfe_ops_4_8;
> extern const struct vfe_hw_ops vfe_ops_170;
> +extern const struct vfe_hw_ops vfe_ops_480;
>
> #endif /* QC_MSM_CAMSS_VFE_H */
> --
> 2.26.1
>
