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Date: Thu, 10 Jun 2021 14:37:07 +0200
From: Robert Foss <robert.foss@...aro.org>
To: Jonathan Marek <jonathan@...ek.ca>
Cc: MSM <linux-arm-msm@...r.kernel.org>,
Andrey Konovalov <andrey.konovalov@...aro.org>,
Todor Tomov <todor.too@...il.com>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
"open list:QUALCOMM CAMERA SUBSYSTEM DRIVER"
<linux-media@...r.kernel.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 12/17] media: camss: remove some vfe ops and clean up dead
vfe-170 code
Hey Jonathan,
On Wed, 9 Jun 2021 at 00:38, Jonathan Marek <jonathan@...ek.ca> 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@...ek.ca>
> ---
> .../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@...aro.org>
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