Re: [PATCH 12/17] media: camss: remove some vfe ops and clean up dead vfe-170 code

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Hey Jonathan,

On Wed, 9 Jun 2021 at 00:38, Jonathan Marek <jonathan@xxxxxxxx> wrote:
>
> Delete vfe_isr_ops. In all cases the right function can just be called
> directly.
>
> From vfe_hw_ops:
>  - enable_irq_common is completely dead
>  - isr_read/violation_read dont need ops (call right function directly)
>  - reg_update/reg_update_clear moved to gen1 ops, vfe-170 can call the
>    right function directly
>
> This reveals dead function in vfe-170 which are deleted. comp_done IRQ
> handling is also removed for vfe-170 - only RDI is supported.
>
> Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx>
> ---
>  .../media/platform/qcom/camss/camss-vfe-170.c | 89 ++----------------
>  .../media/platform/qcom/camss/camss-vfe-4-1.c | 25 +++--
>  .../media/platform/qcom/camss/camss-vfe-4-7.c | 63 ++++++-------
>  .../media/platform/qcom/camss/camss-vfe-4-8.c | 65 ++++++-------
>  .../platform/qcom/camss/camss-vfe-gen1.c      | 94 ++++++++++---------
>  .../platform/qcom/camss/camss-vfe-gen1.h      | 39 +++++++-
>  drivers/media/platform/qcom/camss/camss-vfe.c | 16 ----
>  drivers/media/platform/qcom/camss/camss-vfe.h | 16 ----
>  8 files changed, 169 insertions(+), 238 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-170.c b/drivers/media/platform/qcom/camss/camss-vfe-170.c
> index 8594d275b41d1..1de793b218194 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-170.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-170.c
> @@ -188,20 +188,6 @@ static void vfe_hw_version_read(struct vfe_device *vfe, struct device *dev)
>         dev_err(dev, "VFE HW Version = %u.%u.%u\n", gen, rev, step);
>  }
>
> -static inline void vfe_reg_clr(struct vfe_device *vfe, u32 reg, u32 clr_bits)
> -{
> -       u32 bits = readl_relaxed(vfe->base + reg);
> -
> -       writel_relaxed(bits & ~clr_bits, vfe->base + reg);
> -}
> -
> -static inline void vfe_reg_set(struct vfe_device *vfe, u32 reg, u32 set_bits)
> -{
> -       u32 bits = readl_relaxed(vfe->base + reg);
> -
> -       writel_relaxed(bits | set_bits, vfe->base + reg);
> -}
> -
>  static void vfe_global_reset(struct vfe_device *vfe)
>  {
>         u32 reset_bits = GLOBAL_RESET_CMD_CORE          |
> @@ -305,38 +291,16 @@ static inline void vfe_reg_update_clear(struct vfe_device *vfe,
>
>  static void vfe_enable_irq_common(struct vfe_device *vfe)
>  {
> -       vfe_reg_set(vfe, VFE_IRQ_MASK_0, ~0u);
> -       vfe_reg_set(vfe, VFE_IRQ_MASK_1, ~0u);
> +       writel_relaxed(~0u, vfe->base + VFE_IRQ_MASK_0);
> +       writel_relaxed(~0u, vfe->base + VFE_IRQ_MASK_1);
>
>         writel_relaxed(~0u, vfe->base + VFE_BUS_IRQ_MASK(0));
>         writel_relaxed(~0u, vfe->base + VFE_BUS_IRQ_MASK(1));
>         writel_relaxed(~0u, vfe->base + VFE_BUS_IRQ_MASK(2));
>  }
>
> -static void vfe_isr_halt_ack(struct vfe_device *vfe)
> -{
> -       complete(&vfe->halt_complete);
> -}
> -
> -static void vfe_isr_read(struct vfe_device *vfe, u32 *status0, u32 *status1)
> -{
> -       *status0 = readl_relaxed(vfe->base + VFE_IRQ_STATUS_0);
> -       *status1 = readl_relaxed(vfe->base + VFE_IRQ_STATUS_1);
> -
> -       writel_relaxed(*status0, vfe->base + VFE_IRQ_CLEAR_0);
> -       writel_relaxed(*status1, vfe->base + VFE_IRQ_CLEAR_1);
> -
> -       /* Enforce ordering between IRQ Clear and Global IRQ Clear */
> -       wmb();
> -       writel_relaxed(CMD_GLOBAL_CLEAR, vfe->base + VFE_IRQ_CMD);
> -}
> -
> -static void vfe_violation_read(struct vfe_device *vfe)
> -{
> -       u32 violation = readl_relaxed(vfe->base + VFE_VIOLATION_STATUS);
> -
> -       pr_err_ratelimited("VFE: violation = 0x%08x\n", violation);
> -}
> +static void vfe_isr_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id);
> +static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm);
>
>  /*
>   * vfe_isr - VFE module interrupt handler
> @@ -369,24 +333,16 @@ static irqreturn_t vfe_isr(int irq, void *dev)
>         writel_relaxed(1, vfe->base + VFE_BUS_IRQ_CLEAR_GLOBAL);
>
>         if (status0 & STATUS_0_RESET_ACK)
> -               vfe->isr_ops.reset_ack(vfe);
> +               vfe_isr_reset_ack(vfe);
>
>         for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++)
>                 if (status0 & STATUS_0_RDI_REG_UPDATE(i))
> -                       vfe->isr_ops.reg_update(vfe, i);
> -
> -       for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++)
> -               if (status0 & STATUS_1_RDI_SOF(i))
> -                       vfe->isr_ops.sof(vfe, i);
> -
> -       for (i = 0; i < MSM_VFE_COMPOSITE_IRQ_NUM; i++)
> -               if (vfe_bus_status[0] & STATUS0_COMP_BUF_DONE(i))
> -                       vfe->isr_ops.comp_done(vfe, i);
> +                       vfe_isr_reg_update(vfe, i);
>
>         for (wm = 0; wm < MSM_VFE_IMAGE_MASTERS_NUM; wm++)
>                 if (status0 & BIT(9))
>                         if (vfe_bus_status[1] & STATUS1_WM_CLIENT_BUF_DONE(wm))
> -                               vfe->isr_ops.wm_done(vfe, wm);
> +                               vfe_isr_wm_done(vfe, wm);
>
>         return IRQ_HANDLED;
>  }
> @@ -456,7 +412,6 @@ 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;
>         struct media_entity *sensor;
>         unsigned long flags;
>         unsigned int frame_skip = 0;
> @@ -474,7 +429,7 @@ static int vfe_enable_output(struct vfe_line *line)
>
>         spin_lock_irqsave(&vfe->output_lock, flags);
>
> -       ops->reg_update_clear(vfe, line->id);
> +       vfe_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",
> @@ -501,7 +456,7 @@ static int vfe_enable_output(struct vfe_line *line)
>                 vfe_wm_update(vfe, output->wm_idx[0], output->buf[i]->addr[0], line);
>         }
>
> -       ops->reg_update(vfe, line->id);
> +       vfe_reg_update(vfe, line->id);
>
>         spin_unlock_irqrestore(&vfe->output_lock, flags);
>
> @@ -607,16 +562,6 @@ static int vfe_disable(struct vfe_line *line)
>         return 0;
>  }
>
> -/*
> - * vfe_isr_sof - Process start of frame interrupt
> - * @vfe: VFE Device
> - * @line_id: VFE line
> - */
> -static void vfe_isr_sof(struct vfe_device *vfe, enum vfe_line_id line_id)
> -{
> -       /* nop */
> -}
> -
>  /*
>   * vfe_isr_reg_update - Process reg update interrupt
>   * @vfe: VFE Device
> @@ -628,7 +573,7 @@ static void vfe_isr_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
>         unsigned long flags;
>
>         spin_lock_irqsave(&vfe->output_lock, flags);
> -       vfe->ops->reg_update_clear(vfe, line_id);
> +       vfe_reg_update_clear(vfe, line_id);
>
>         output = &vfe->line[line_id].output;
>
> @@ -747,15 +692,6 @@ static int vfe_queue_buffer(struct camss_video *vid,
>         return 0;
>  }
>
> -static const struct vfe_isr_ops vfe_isr_ops_170 = {
> -       .reset_ack = vfe_isr_reset_ack,
> -       .halt_ack = vfe_isr_halt_ack,
> -       .reg_update = vfe_isr_reg_update,
> -       .sof = vfe_isr_sof,
> -       .comp_done = vfe_isr_comp_done,
> -       .wm_done = vfe_isr_wm_done,
> -};
> -
>  static const struct camss_video_ops vfe_video_ops_170 = {
>         .queue_buffer = vfe_queue_buffer,
>         .flush_buffers = vfe_flush_buffers,
> @@ -763,7 +699,6 @@ static const struct camss_video_ops vfe_video_ops_170 = {
>
>  static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  {
> -       vfe->isr_ops = vfe_isr_ops_170;
>         vfe->video_ops = vfe_video_ops_170;
>
>         vfe->line_num = VFE_LINE_NUM_GEN2;
> @@ -772,15 +707,11 @@ static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  const struct vfe_hw_ops vfe_ops_170 = {
>         .global_reset = vfe_global_reset,
>         .hw_version_read = vfe_hw_version_read,
> -       .isr_read = vfe_isr_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,
> -       .violation_read = vfe_violation_read,
>  };
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
> index 53c56a8d45458..873f348cf2fae 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-4-1.c
> @@ -898,34 +898,34 @@ static irqreturn_t vfe_isr(int irq, void *dev)
>         u32 value0, value1;
>         int i, j;
>
> -       vfe->ops->isr_read(vfe, &value0, &value1);
> +       vfe_isr_read(vfe, &value0, &value1);
>
>         dev_dbg(vfe->camss->dev, "VFE: status0 = 0x%08x, status1 = 0x%08x\n",
>                 value0, value1);
>
>         if (value0 & VFE_0_IRQ_STATUS_0_RESET_ACK)
> -               vfe->isr_ops.reset_ack(vfe);
> +               vfe_isr_reset_ack(vfe);
>
>         if (value1 & VFE_0_IRQ_STATUS_1_VIOLATION)
> -               vfe->ops->violation_read(vfe);
> +               vfe_violation_read(vfe);
>
>         if (value1 & VFE_0_IRQ_STATUS_1_BUS_BDG_HALT_ACK)
> -               vfe->isr_ops.halt_ack(vfe);
> +               vfe_gen1_isr_halt_ack(vfe);
>
>         for (i = VFE_LINE_RDI0; i <= VFE_LINE_PIX; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_line_n_REG_UPDATE(i))
> -                       vfe->isr_ops.reg_update(vfe, i);
> +                       vfe_gen1_reg_update(vfe, i);
>
>         if (value0 & VFE_0_IRQ_STATUS_0_CAMIF_SOF)
> -               vfe->isr_ops.sof(vfe, VFE_LINE_PIX);
> +               vfe_gen1_isr_sof(vfe, VFE_LINE_PIX);
>
>         for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++)
>                 if (value1 & VFE_0_IRQ_STATUS_1_RDIn_SOF(i))
> -                       vfe->isr_ops.sof(vfe, i);
> +                       vfe_gen1_isr_sof(vfe, i);
>
>         for (i = 0; i < MSM_VFE_COMPOSITE_IRQ_NUM; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_COMPOSITE_DONE_n(i)) {
> -                       vfe->isr_ops.comp_done(vfe, i);
> +                       vfe_gen1_isr_comp_done(vfe, i);
>                         for (j = 0; j < ARRAY_SIZE(vfe->wm_output_map); j++)
>                                 if (vfe->wm_output_map[j] == VFE_LINE_PIX)
>                                         value0 &= ~VFE_0_IRQ_MASK_0_IMAGE_MASTER_n_PING_PONG(j);
> @@ -933,7 +933,7 @@ static irqreturn_t vfe_isr(int irq, void *dev)
>
>         for (i = 0; i < MSM_VFE_IMAGE_MASTERS_NUM; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_MASTER_n_PING_PONG(i))
> -                       vfe->isr_ops.wm_done(vfe, i);
> +                       vfe_gen1_isr_wm_done(vfe, i);
>
>         return IRQ_HANDLED;
>  }
> @@ -991,11 +991,12 @@ static const struct vfe_hw_ops_gen1 vfe_ops_gen1_4_1 = {
>         .wm_set_pong_addr = vfe_wm_set_pong_addr,
>         .wm_set_subsample = vfe_wm_set_subsample,
>         .wm_set_ub_cfg = vfe_wm_set_ub_cfg,
> +       .reg_update_clear = vfe_reg_update_clear,
> +       .reg_update = vfe_reg_update,
>  };
>
>  static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  {
> -       vfe->isr_ops = vfe_isr_ops_gen1;
>         vfe->ops_gen1 = &vfe_ops_gen1_4_1;
>         vfe->video_ops = vfe_video_ops_gen1;
>
> @@ -1005,15 +1006,11 @@ static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  const struct vfe_hw_ops vfe_ops_4_1 = {
>         .global_reset = vfe_global_reset,
>         .hw_version_read = vfe_hw_version_read,
> -       .isr_read = vfe_isr_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_gen1_disable,
>         .vfe_enable = vfe_gen1_enable,
>         .vfe_halt = vfe_gen1_halt,
> -       .violation_read = vfe_violation_read,
>  };
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
> index a596352177583..35178f66360eb 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-4-7.c
> @@ -1037,7 +1037,25 @@ static int vfe_camif_wait_for_stop(struct vfe_device *vfe, struct device *dev)
>         return ret;
>  }
>
> +static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
> +{
> +       *value0 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_0);
> +       *value1 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_1);
>
> +       writel_relaxed(*value0, vfe->base + VFE_0_IRQ_CLEAR_0);
> +       writel_relaxed(*value1, vfe->base + VFE_0_IRQ_CLEAR_1);
> +
> +       /* Enforce barrier between local & global IRQ clear */
> +       wmb();
> +       writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
> +}
> +
> +static void vfe_violation_read(struct vfe_device *vfe)
> +{
> +       u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
> +
> +       pr_err_ratelimited("VFE: violation = 0x%08x\n", violation);
> +}
>
>  /*
>   * vfe_isr - VFE module interrupt handler
> @@ -1052,34 +1070,34 @@ static irqreturn_t vfe_isr(int irq, void *dev)
>         u32 value0, value1;
>         int i, j;
>
> -       vfe->ops->isr_read(vfe, &value0, &value1);
> +       vfe_isr_read(vfe, &value0, &value1);
>
>         dev_dbg(vfe->camss->dev, "VFE: status0 = 0x%08x, status1 = 0x%08x\n",
>                 value0, value1);
>
>         if (value0 & VFE_0_IRQ_STATUS_0_RESET_ACK)
> -               vfe->isr_ops.reset_ack(vfe);
> +               vfe_isr_reset_ack(vfe);
>
>         if (value1 & VFE_0_IRQ_STATUS_1_VIOLATION)
> -               vfe->ops->violation_read(vfe);
> +               vfe_violation_read(vfe);
>
>         if (value1 & VFE_0_IRQ_STATUS_1_BUS_BDG_HALT_ACK)
> -               vfe->isr_ops.halt_ack(vfe);
> +               vfe_gen1_isr_halt_ack(vfe);
>
>         for (i = VFE_LINE_RDI0; i < vfe->line_num; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_line_n_REG_UPDATE(i))
> -                       vfe->isr_ops.reg_update(vfe, i);
> +                       vfe_gen1_reg_update(vfe, i);
>
>         if (value0 & VFE_0_IRQ_STATUS_0_CAMIF_SOF)
> -               vfe->isr_ops.sof(vfe, VFE_LINE_PIX);
> +               vfe_gen1_isr_sof(vfe, VFE_LINE_PIX);
>
>         for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++)
>                 if (value1 & VFE_0_IRQ_STATUS_1_RDIn_SOF(i))
> -                       vfe->isr_ops.sof(vfe, i);
> +                       vfe_gen1_isr_sof(vfe, i);
>
>         for (i = 0; i < MSM_VFE_COMPOSITE_IRQ_NUM; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_COMPOSITE_DONE_n(i)) {
> -                       vfe->isr_ops.comp_done(vfe, i);
> +                       vfe_gen1_isr_comp_done(vfe, i);
>                         for (j = 0; j < ARRAY_SIZE(vfe->wm_output_map); j++)
>                                 if (vfe->wm_output_map[j] == VFE_LINE_PIX)
>                                         value0 &= ~VFE_0_IRQ_MASK_0_IMAGE_MASTER_n_PING_PONG(j);
> @@ -1087,24 +1105,11 @@ static irqreturn_t vfe_isr(int irq, void *dev)
>
>         for (i = 0; i < MSM_VFE_IMAGE_MASTERS_NUM; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_MASTER_n_PING_PONG(i))
> -                       vfe->isr_ops.wm_done(vfe, i);
> +                       vfe_gen1_isr_wm_done(vfe, i);
>
>         return IRQ_HANDLED;
>  }
>
> -static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
> -{
> -       *value0 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_0);
> -       *value1 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_1);
> -
> -       writel_relaxed(*value0, vfe->base + VFE_0_IRQ_CLEAR_0);
> -       writel_relaxed(*value1, vfe->base + VFE_0_IRQ_CLEAR_1);
> -
> -       /* Enforce barrier between local & global IRQ clear */
> -       wmb();
> -       writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
> -}
> -
>  /*
>   * vfe_pm_domain_off - Disable power domains specific to this VFE.
>   * @vfe: VFE Device
> @@ -1141,13 +1146,6 @@ static int vfe_pm_domain_on(struct vfe_device *vfe)
>         return 0;
>  }
>
> -static void vfe_violation_read(struct vfe_device *vfe)
> -{
> -       u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
> -
> -       pr_err_ratelimited("VFE: violation = 0x%08x\n", violation);
> -}
> -
>  static const struct vfe_hw_ops_gen1 vfe_ops_gen1_4_7 = {
>         .bus_connect_wm_to_rdi = vfe_bus_connect_wm_to_rdi,
>         .bus_disconnect_wm_from_rdi = vfe_bus_disconnect_wm_from_rdi,
> @@ -1183,11 +1181,12 @@ static const struct vfe_hw_ops_gen1 vfe_ops_gen1_4_7 = {
>         .wm_set_pong_addr = vfe_wm_set_pong_addr,
>         .wm_set_subsample = vfe_wm_set_subsample,
>         .wm_set_ub_cfg = vfe_wm_set_ub_cfg,
> +       .reg_update_clear = vfe_reg_update_clear,
> +       .reg_update = vfe_reg_update,
>  };
>
>  static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  {
> -       vfe->isr_ops = vfe_isr_ops_gen1;
>         vfe->ops_gen1 = &vfe_ops_gen1_4_7;
>         vfe->video_ops = vfe_video_ops_gen1;
>
> @@ -1197,15 +1196,11 @@ static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  const struct vfe_hw_ops vfe_ops_4_7 = {
>         .global_reset = vfe_global_reset,
>         .hw_version_read = vfe_hw_version_read,
> -       .isr_read = vfe_isr_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_gen1_disable,
>         .vfe_enable = vfe_gen1_enable,
>         .vfe_halt = vfe_gen1_halt,
> -       .violation_read = vfe_violation_read,
>  };
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
> index 998429dbb65cd..d4ddbbf44f514 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-4-8.c
> @@ -968,6 +968,26 @@ static int vfe_camif_wait_for_stop(struct vfe_device *vfe, struct device *dev)
>         return ret;
>  }
>
> +static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
> +{
> +       *value0 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_0);
> +       *value1 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_1);
> +
> +       writel_relaxed(*value0, vfe->base + VFE_0_IRQ_CLEAR_0);
> +       writel_relaxed(*value1, vfe->base + VFE_0_IRQ_CLEAR_1);
> +
> +       /* Enforce barrier between local & global IRQ clear */
> +       wmb();
> +       writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
> +}
> +
> +static void vfe_violation_read(struct vfe_device *vfe)
> +{
> +       u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
> +
> +       pr_err_ratelimited("VFE: violation = 0x%08x\n", violation);
> +}
> +
>  /*
>   * vfe_isr - VFE module interrupt handler
>   * @irq: Interrupt line
> @@ -981,34 +1001,34 @@ static irqreturn_t vfe_isr(int irq, void *dev)
>         u32 value0, value1;
>         int i, j;
>
> -       vfe->ops->isr_read(vfe, &value0, &value1);
> +       vfe_isr_read(vfe, &value0, &value1);
>
>         dev_dbg(vfe->camss->dev, "VFE: status0 = 0x%08x, status1 = 0x%08x\n",
>                 value0, value1);
>
>         if (value0 & VFE_0_IRQ_STATUS_0_RESET_ACK)
> -               vfe->isr_ops.reset_ack(vfe);
> +               vfe_isr_reset_ack(vfe);
>
>         if (value1 & VFE_0_IRQ_STATUS_1_VIOLATION)
> -               vfe->ops->violation_read(vfe);
> +               vfe_violation_read(vfe);
>
>         if (value1 & VFE_0_IRQ_STATUS_1_BUS_BDG_HALT_ACK)
> -               vfe->isr_ops.halt_ack(vfe);
> +               vfe_gen1_isr_halt_ack(vfe);
>
>         for (i = VFE_LINE_RDI0; i < vfe->line_num; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_line_n_REG_UPDATE(i))
> -                       vfe->isr_ops.reg_update(vfe, i);
> +                       vfe_gen1_reg_update(vfe, i);
>
>         if (value0 & VFE_0_IRQ_STATUS_0_CAMIF_SOF)
> -               vfe->isr_ops.sof(vfe, VFE_LINE_PIX);
> +               vfe_gen1_isr_sof(vfe, VFE_LINE_PIX);
>
>         for (i = VFE_LINE_RDI0; i <= VFE_LINE_RDI2; i++)
>                 if (value1 & VFE_0_IRQ_STATUS_1_RDIn_SOF(i))
> -                       vfe->isr_ops.sof(vfe, i);
> +                       vfe_gen1_isr_sof(vfe, i);
>
>         for (i = 0; i < MSM_VFE_COMPOSITE_IRQ_NUM; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_COMPOSITE_DONE_n(i)) {
> -                       vfe->isr_ops.comp_done(vfe, i);
> +                       vfe_gen1_isr_comp_done(vfe, i);
>                         for (j = 0; j < ARRAY_SIZE(vfe->wm_output_map); j++)
>                                 if (vfe->wm_output_map[j] == VFE_LINE_PIX)
>                                         value0 &= ~VFE_0_IRQ_MASK_0_IMAGE_MASTER_n_PING_PONG(j);
> @@ -1016,7 +1036,7 @@ static irqreturn_t vfe_isr(int irq, void *dev)
>
>         for (i = 0; i < MSM_VFE_IMAGE_MASTERS_NUM; i++)
>                 if (value0 & VFE_0_IRQ_STATUS_0_IMAGE_MASTER_n_PING_PONG(i))
> -                       vfe->isr_ops.wm_done(vfe, i);
> +                       vfe_gen1_isr_wm_done(vfe, i);
>
>         return IRQ_HANDLED;
>  }
> @@ -1081,19 +1101,6 @@ static void vfe_set_ds(struct vfe_device *vfe)
>         writel_relaxed(val16, vfe->base + VFE_0_BUS_BDG_DS_CFG_16);
>  }
>
> -static void vfe_isr_read(struct vfe_device *vfe, u32 *value0, u32 *value1)
> -{
> -       *value0 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_0);
> -       *value1 = readl_relaxed(vfe->base + VFE_0_IRQ_STATUS_1);
> -
> -       writel_relaxed(*value0, vfe->base + VFE_0_IRQ_CLEAR_0);
> -       writel_relaxed(*value1, vfe->base + VFE_0_IRQ_CLEAR_1);
> -
> -       /* Enforce barrier between local & global IRQ clear */
> -       wmb();
> -       writel_relaxed(VFE_0_IRQ_CMD_GLOBAL_CLEAR, vfe->base + VFE_0_IRQ_CMD);
> -}
> -
>  /*
>   * vfe_pm_domain_off - Disable power domains specific to this VFE.
>   * @vfe: VFE Device
> @@ -1125,13 +1132,6 @@ static int vfe_pm_domain_on(struct vfe_device *vfe)
>         return 0;
>  }
>
> -static void vfe_violation_read(struct vfe_device *vfe)
> -{
> -       u32 violation = readl_relaxed(vfe->base + VFE_0_VIOLATION_STATUS);
> -
> -       pr_err_ratelimited("VFE: violation = 0x%08x\n", violation);
> -}
> -
>  static const struct vfe_hw_ops_gen1 vfe_ops_gen1_4_8 = {
>         .bus_connect_wm_to_rdi = vfe_bus_connect_wm_to_rdi,
>         .bus_disconnect_wm_from_rdi = vfe_bus_disconnect_wm_from_rdi,
> @@ -1167,11 +1167,12 @@ static const struct vfe_hw_ops_gen1 vfe_ops_gen1_4_8 = {
>         .wm_set_pong_addr = vfe_wm_set_pong_addr,
>         .wm_set_subsample = vfe_wm_set_subsample,
>         .wm_set_ub_cfg = vfe_wm_set_ub_cfg,
> +       .reg_update_clear = vfe_reg_update_clear,
> +       .reg_update = vfe_reg_update,
>  };
>
>  static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  {
> -       vfe->isr_ops = vfe_isr_ops_gen1;
>         vfe->ops_gen1 = &vfe_ops_gen1_4_8;
>         vfe->video_ops = vfe_video_ops_gen1;
>
> @@ -1181,15 +1182,11 @@ static void vfe_subdev_init(struct device *dev, struct vfe_device *vfe)
>  const struct vfe_hw_ops vfe_ops_4_8 = {
>         .global_reset = vfe_global_reset,
>         .hw_version_read = vfe_hw_version_read,
> -       .isr_read = vfe_isr_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_gen1_disable,
>         .vfe_enable = vfe_gen1_enable,
>         .vfe_halt = vfe_gen1_halt,
> -       .violation_read = vfe_violation_read,
>  };
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-gen1.c b/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
> index 4fd265d018834..2c0cd14bbdf8e 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-gen1.c
> @@ -37,7 +37,6 @@ static int vfe_disable_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 long time;
>         unsigned int i;
> @@ -55,7 +54,7 @@ static int vfe_disable_output(struct vfe_line *line)
>         for (i = 0; i < output->wm_num; i++)
>                 vfe->ops_gen1->wm_enable(vfe, output->wm_idx[i], 0);
>
> -       ops->reg_update(vfe, line->id);
> +       vfe->ops_gen1->reg_update(vfe, line->id);
>         output->wait_reg_update = 1;
>         spin_unlock_irqrestore(&vfe->output_lock, flags);
>
> @@ -162,21 +161,21 @@ static void vfe_output_frame_drop(struct vfe_device *vfe,
>                 vfe->ops_gen1->wm_set_framedrop_pattern(vfe, output->wm_idx[i], drop_pattern);
>         }
>
> -       vfe->ops->reg_update(vfe, container_of(output, struct vfe_line, output)->id);
> +       vfe->ops_gen1->reg_update(vfe, container_of(output, struct vfe_line, output)->id);
>  }
>
>  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;
> +       const struct vfe_hw_ops_gen1 *ops = vfe->ops_gen1;
>         struct media_entity *sensor;
>         unsigned long flags;
>         unsigned int frame_skip = 0;
>         unsigned int i;
>         u16 ub_size;
>
> -       ub_size = vfe->ops_gen1->get_ub_size(vfe->id);
> +       ub_size = ops->get_ub_size(vfe->id);
>         if (!ub_size)
>                 return -EINVAL;
>
> @@ -236,38 +235,38 @@ static int vfe_enable_output(struct vfe_line *line)
>         vfe_output_init_addrs(vfe, output, 0, line);
>
>         if (line->id != VFE_LINE_PIX) {
> -               vfe->ops_gen1->set_cgc_override(vfe, output->wm_idx[0], 1);
> -               vfe->ops_gen1->enable_irq_wm_line(vfe, output->wm_idx[0], line->id, 1);
> -               vfe->ops_gen1->bus_connect_wm_to_rdi(vfe, output->wm_idx[0], line->id);
> -               vfe->ops_gen1->wm_set_subsample(vfe, output->wm_idx[0]);
> -               vfe->ops_gen1->set_rdi_cid(vfe, line->id, 0);
> -               vfe->ops_gen1->wm_set_ub_cfg(vfe, output->wm_idx[0],
> +               ops->set_cgc_override(vfe, output->wm_idx[0], 1);
> +               ops->enable_irq_wm_line(vfe, output->wm_idx[0], line->id, 1);
> +               ops->bus_connect_wm_to_rdi(vfe, output->wm_idx[0], line->id);
> +               ops->wm_set_subsample(vfe, output->wm_idx[0]);
> +               ops->set_rdi_cid(vfe, line->id, 0);
> +               ops->wm_set_ub_cfg(vfe, output->wm_idx[0],
>                                             (ub_size + 1) * output->wm_idx[0], ub_size);
> -               vfe->ops_gen1->wm_frame_based(vfe, output->wm_idx[0], 1);
> -               vfe->ops_gen1->wm_enable(vfe, output->wm_idx[0], 1);
> -               vfe->ops_gen1->bus_reload_wm(vfe, output->wm_idx[0]);
> +               ops->wm_frame_based(vfe, output->wm_idx[0], 1);
> +               ops->wm_enable(vfe, output->wm_idx[0], 1);
> +               ops->bus_reload_wm(vfe, output->wm_idx[0]);
>         } else {
>                 ub_size /= output->wm_num;
>                 for (i = 0; i < output->wm_num; i++) {
> -                       vfe->ops_gen1->set_cgc_override(vfe, output->wm_idx[i], 1);
> -                       vfe->ops_gen1->wm_set_subsample(vfe, output->wm_idx[i]);
> -                       vfe->ops_gen1->wm_set_ub_cfg(vfe, output->wm_idx[i],
> +                       ops->set_cgc_override(vfe, output->wm_idx[i], 1);
> +                       ops->wm_set_subsample(vfe, output->wm_idx[i]);
> +                       ops->wm_set_ub_cfg(vfe, output->wm_idx[i],
>                                                      (ub_size + 1) * output->wm_idx[i], ub_size);
> -                       vfe->ops_gen1->wm_line_based(vfe, output->wm_idx[i],
> +                       ops->wm_line_based(vfe, output->wm_idx[i],
>                                                      &line->video_out.active_fmt.fmt.pix_mp, i, 1);
> -                       vfe->ops_gen1->wm_enable(vfe, output->wm_idx[i], 1);
> -                       vfe->ops_gen1->bus_reload_wm(vfe, output->wm_idx[i]);
> +                       ops->wm_enable(vfe, output->wm_idx[i], 1);
> +                       ops->bus_reload_wm(vfe, output->wm_idx[i]);
>                 }
> -               vfe->ops_gen1->enable_irq_pix_line(vfe, 0, line->id, 1);
> -               vfe->ops_gen1->set_module_cfg(vfe, 1);
> -               vfe->ops_gen1->set_camif_cfg(vfe, line);
> -               vfe->ops_gen1->set_realign_cfg(vfe, line, 1);
> -               vfe->ops_gen1->set_xbar_cfg(vfe, output, 1);
> -               vfe->ops_gen1->set_demux_cfg(vfe, line);
> -               vfe->ops_gen1->set_scale_cfg(vfe, line);
> -               vfe->ops_gen1->set_crop_cfg(vfe, line);
> -               vfe->ops_gen1->set_clamp_cfg(vfe);
> -               vfe->ops_gen1->set_camif_cmd(vfe, 1);
> +               ops->enable_irq_pix_line(vfe, 0, line->id, 1);
> +               ops->set_module_cfg(vfe, 1);
> +               ops->set_camif_cfg(vfe, line);
> +               ops->set_realign_cfg(vfe, line, 1);
> +               ops->set_xbar_cfg(vfe, output, 1);
> +               ops->set_demux_cfg(vfe, line);
> +               ops->set_scale_cfg(vfe, line);
> +               ops->set_crop_cfg(vfe, line);
> +               ops->set_clamp_cfg(vfe);
> +               ops->set_camif_cmd(vfe, 1);
>         }
>
>         ops->reg_update(vfe, line->id);
> @@ -508,7 +507,7 @@ static void vfe_buf_update_wm_on_new(struct vfe_device *vfe,
>   * vfe_isr_halt_ack - Process halt ack
>   * @vfe: VFE Device
>   */
> -static void vfe_isr_halt_ack(struct vfe_device *vfe)
> +void vfe_gen1_isr_halt_ack(struct vfe_device *vfe)
>  {
>         complete(&vfe->halt_complete);
>         vfe->ops_gen1->halt_clear(vfe);
> @@ -519,7 +518,7 @@ static void vfe_isr_halt_ack(struct vfe_device *vfe)
>   * @vfe: VFE Device
>   * @line_id: VFE line
>   */
> -static void vfe_isr_sof(struct vfe_device *vfe, enum vfe_line_id line_id)
> +void vfe_gen1_isr_sof(struct vfe_device *vfe, enum vfe_line_id line_id)
>  {
>         struct vfe_output *output;
>         unsigned long flags;
> @@ -538,14 +537,14 @@ static void vfe_isr_sof(struct vfe_device *vfe, enum vfe_line_id line_id)
>   * @vfe: VFE Device
>   * @line_id: VFE line
>   */
> -static void vfe_isr_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
> +void vfe_gen1_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
>  {
>         struct vfe_output *output;
>         struct vfe_line *line = &vfe->line[line_id];
>         unsigned long flags;
>
>         spin_lock_irqsave(&vfe->output_lock, flags);
> -       vfe->ops->reg_update_clear(vfe, line_id);
> +       vfe->ops_gen1->reg_update_clear(vfe, line_id);
>
>         output = &line->output;
>
> @@ -605,7 +604,7 @@ static void vfe_isr_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id)
>   * @vfe: VFE Device
>   * @wm: Write master id
>   */
> -static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm)
> +void vfe_gen1_isr_wm_done(struct vfe_device *vfe, u8 wm)
>  {
>         struct camss_buffer *ready_buf;
>         struct vfe_output *output;
> @@ -675,6 +674,22 @@ static void vfe_isr_wm_done(struct vfe_device *vfe, u8 wm)
>         spin_unlock_irqrestore(&vfe->output_lock, flags);
>  }
>
> +/**
> + * vfe_isr_comp_done() - Process composite image done interrupt
> + * @vfe: VFE Device
> + * @comp: Composite image id
> + */
> +void vfe_gen1_isr_comp_done(struct vfe_device *vfe, u8 comp)
> +{
> +       unsigned int i;
> +
> +       for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++)
> +               if (vfe->wm_output_map[i] == VFE_LINE_PIX) {
> +                       vfe_gen1_isr_wm_done(vfe, i);
> +                       break;
> +               }
> +}
> +
>  /*
>   * vfe_queue_buffer - Add empty buffer
>   * @vid: Video device structure
> @@ -727,15 +742,6 @@ int vfe_word_per_line(u32 format, u32 width)
>         return val;
>  }
>
> -const struct vfe_isr_ops vfe_isr_ops_gen1 = {
> -       .reset_ack = vfe_isr_reset_ack,
> -       .halt_ack = vfe_isr_halt_ack,
> -       .reg_update = vfe_isr_reg_update,
> -       .sof = vfe_isr_sof,
> -       .comp_done = vfe_isr_comp_done,
> -       .wm_done = vfe_isr_wm_done,
> -};
> -
>  const struct camss_video_ops vfe_video_ops_gen1 = {
>         .queue_buffer = vfe_queue_buffer,
>         .flush_buffers = vfe_flush_buffers,
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe-gen1.h b/drivers/media/platform/qcom/camss/camss-vfe-gen1.h
> index 6d5f9656562c8..2619df66aa713 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe-gen1.h
> +++ b/drivers/media/platform/qcom/camss/camss-vfe-gen1.h
> @@ -55,6 +55,9 @@ struct vfe_hw_ops_gen1 {
>         void (*wm_set_pong_addr)(struct vfe_device *vfe, u8 wm, u32 addr);
>         int (*wm_get_ping_pong_status)(struct vfe_device *vfe, u8 wm);
>         void (*wm_enable)(struct vfe_device *vfe, u8 wm, u8 enable);
> +       void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id);
> +       void (*reg_update_clear)(struct vfe_device *vfe,
> +                                enum vfe_line_id line_id);
>  };
>
>  /*
> @@ -95,13 +98,47 @@ int vfe_gen1_disable(struct vfe_line *line);
>  int vfe_gen1_enable(struct vfe_line *line);
>
>  /*
> - * vfe_gen1_enable - Halt VFE module
> + * vfe_gen1_halt - Halt VFE module
>   * @vfe: VFE device
>   *
>   * Return 0 on success
>   */
>  int vfe_gen1_halt(struct vfe_device *vfe);
>
> +/*
> + * vfe_gen1_isr_halt_ack - Process halt ack
> + * @vfe: VFE Device
> + */
> +void vfe_gen1_isr_halt_ack(struct vfe_device *vfe);
> +
> +/*
> + * vfe_gen1_isr_sof - Process start of frame interrupt
> + * @vfe: VFE Device
> + * @line_id: VFE line
> + */
> +void vfe_gen1_isr_sof(struct vfe_device *vfe, enum vfe_line_id line_id);
> +
> +/*
> + * vfe_gen1_reg_update - Process reg update interrupt
> + * @vfe: VFE Device
> + * @line_id: VFE line
> + */
> +void vfe_gen1_reg_update(struct vfe_device *vfe, enum vfe_line_id line_id);
> +
> +/*
> + * vfe_gen1_isr_wm_done - Process write master done interrupt
> + * @vfe: VFE Device
> + * @wm: Write master id
> + */
> +void vfe_gen1_isr_wm_done(struct vfe_device *vfe, u8 wm);
> +
> +/**
> + * vfe_gen1_isr_comp_done() - Process composite image done interrupt
> + * @vfe: VFE Device
> + * @comp: Composite image id
> + */
> +void vfe_gen1_isr_comp_done(struct vfe_device *vfe, u8 comp);
> +
>  /*
>   * vfe_word_per_line - Calculate number of words per frame width
>   * @format: V4L2 format
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
> index dec89079c6ae4..3e467034710b9 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe.c
> +++ b/drivers/media/platform/qcom/camss/camss-vfe.c
> @@ -405,22 +405,6 @@ int vfe_put_output(struct vfe_line *line)
>         return 0;
>  }
>
> -/**
> - * vfe_isr_comp_done() - Process composite image done interrupt
> - * @vfe: VFE Device
> - * @comp: Composite image id
> - */
> -void vfe_isr_comp_done(struct vfe_device *vfe, u8 comp)
> -{
> -       unsigned int i;
> -
> -       for (i = 0; i < ARRAY_SIZE(vfe->wm_output_map); i++)
> -               if (vfe->wm_output_map[i] == VFE_LINE_PIX) {
> -                       vfe->isr_ops.wm_done(vfe, i);
> -                       break;
> -               }
> -}
> -
>  void vfe_isr_reset_ack(struct vfe_device *vfe)
>  {
>         complete(&vfe->reset_complete);
> diff --git a/drivers/media/platform/qcom/camss/camss-vfe.h b/drivers/media/platform/qcom/camss/camss-vfe.h
> index 844b9275031d9..97a1361996308 100644
> --- a/drivers/media/platform/qcom/camss/camss-vfe.h
> +++ b/drivers/media/platform/qcom/camss/camss-vfe.h
> @@ -101,30 +101,15 @@ struct vfe_line {
>  struct vfe_device;
>
>  struct vfe_hw_ops {
> -       void (*enable_irq_common)(struct vfe_device *vfe);
>         void (*global_reset)(struct vfe_device *vfe);
>         void (*hw_version_read)(struct vfe_device *vfe, struct device *dev);
>         irqreturn_t (*isr)(int irq, void *dev);
> -       void (*isr_read)(struct vfe_device *vfe, u32 *value0, u32 *value1);
>         void (*pm_domain_off)(struct vfe_device *vfe);
>         int (*pm_domain_on)(struct vfe_device *vfe);
> -       void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id);
> -       void (*reg_update_clear)(struct vfe_device *vfe,
> -                                enum vfe_line_id line_id);
>         void (*subdev_init)(struct device *dev, struct vfe_device *vfe);
>         int (*vfe_disable)(struct vfe_line *line);
>         int (*vfe_enable)(struct vfe_line *line);
>         int (*vfe_halt)(struct vfe_device *vfe);
> -       void (*violation_read)(struct vfe_device *vfe);
> -};
> -
> -struct vfe_isr_ops {
> -       void (*reset_ack)(struct vfe_device *vfe);
> -       void (*halt_ack)(struct vfe_device *vfe);
> -       void (*reg_update)(struct vfe_device *vfe, enum vfe_line_id line_id);
> -       void (*sof)(struct vfe_device *vfe, enum vfe_line_id line_id);
> -       void (*comp_done)(struct vfe_device *vfe, u8 comp);
> -       void (*wm_done)(struct vfe_device *vfe, u8 wm);
>  };
>
>  struct vfe_device {
> @@ -149,7 +134,6 @@ struct vfe_device {
>         u8 was_streaming;
>         const struct vfe_hw_ops *ops;
>         const struct vfe_hw_ops_gen1 *ops_gen1;
> -       struct vfe_isr_ops isr_ops;
>         struct camss_video_ops video_ops;
>  };
>

With the kernel test robot complaint fixed, I'm happy with this patch.

Reviewed-by: Robert Foss <robert.foss@xxxxxxxxxx>



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