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Subject[PATCH 4/6] drm/msm/dpu: Remove unnecessary NULL check
Date
dpu_encoder_virt.phys_encs[0:num_phys_encs-1] will not be NULL so don't
check.

Also fix multiline strings that caused checkpatch warning.

Signed-off-by: Drew Davenport <ddavenport@chromium.org>
---

drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 162 ++++++++------------
1 file changed, 61 insertions(+), 101 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 45a87757e766..e9f8fe66af7b 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -233,7 +233,7 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc,
u32 irq_status;
int ret;

- if (!phys_enc || !wait_info || intr_idx >= INTR_IDX_MAX) {
+ if (!wait_info || intr_idx >= INTR_IDX_MAX) {
DPU_ERROR("invalid params\n");
return -EINVAL;
}
@@ -308,7 +308,7 @@ int dpu_encoder_helper_register_irq(struct dpu_encoder_phys *phys_enc,
struct dpu_encoder_irq *irq;
int ret = 0;

- if (!phys_enc || intr_idx >= INTR_IDX_MAX) {
+ if (intr_idx >= INTR_IDX_MAX) {
DPU_ERROR("invalid params\n");
return -EINVAL;
}
@@ -363,10 +363,6 @@ int dpu_encoder_helper_unregister_irq(struct dpu_encoder_phys *phys_enc,
struct dpu_encoder_irq *irq;
int ret;

- if (!phys_enc) {
- DPU_ERROR("invalid encoder\n");
- return -EINVAL;
- }
irq = &phys_enc->irq[intr_idx];

/* silently skip irqs that weren't registered */
@@ -415,7 +411,7 @@ void dpu_encoder_get_hw_resources(struct drm_encoder *drm_enc,
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (phys && phys->ops.get_hw_resources)
+ if (phys->ops.get_hw_resources)
phys->ops.get_hw_resources(phys, hw_res);
}
}
@@ -438,7 +434,7 @@ static void dpu_encoder_destroy(struct drm_encoder *drm_enc)
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (phys && phys->ops.destroy) {
+ if (phys->ops.destroy) {
phys->ops.destroy(phys);
--dpu_enc->num_phys_encs;
dpu_enc->phys_encs[i] = NULL;
@@ -464,7 +460,7 @@ void dpu_encoder_helper_split_config(
struct dpu_hw_mdp *hw_mdptop;
struct msm_display_info *disp_info;

- if (!phys_enc || !phys_enc->hw_mdptop || !phys_enc->parent) {
+ if (!phys_enc->hw_mdptop || !phys_enc->parent) {
DPU_ERROR("invalid arg(s), encoder %d\n", phys_enc != 0);
return;
}
@@ -528,16 +524,11 @@ static struct msm_display_topology dpu_encoder_get_topology(
struct drm_display_mode *mode)
{
struct msm_display_topology topology;
- int i, intf_count = 0;
-
- for (i = 0; i < MAX_PHYS_ENCODERS_PER_VIRTUAL; i++)
- if (dpu_enc->phys_encs[i])
- intf_count++;

/* User split topology for width > 1080 */
topology.num_lm = (mode->vdisplay > MAX_VDISPLAY_SPLIT) ? 2 : 1;
topology.num_enc = 0;
- topology.num_intf = intf_count;
+ topology.num_intf = dpu_enc->num_phys_encs;

return topology;
}
@@ -583,10 +574,10 @@ static int dpu_encoder_virt_atomic_check(
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (phys && phys->ops.atomic_check)
+ if (phys->ops.atomic_check)
ret = phys->ops.atomic_check(phys, crtc_state,
conn_state);
- else if (phys && phys->ops.mode_fixup)
+ else if (phys->ops.mode_fixup)
if (!phys->ops.mode_fixup(phys, mode, adj_mode))
ret = -EINVAL;

@@ -682,7 +673,7 @@ static void _dpu_encoder_irq_control(struct drm_encoder *drm_enc, bool enable)
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (phys && phys->ops.irq_control)
+ if (phys->ops.irq_control)
phys->ops.irq_control(phys, enable);
}

@@ -1032,46 +1023,43 @@ static void dpu_encoder_virt_mode_set(struct drm_encoder *drm_enc,
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (phys) {
- if (!dpu_enc->hw_pp[i]) {
- DPU_ERROR_ENC(dpu_enc, "no pp block assigned"
- "at idx: %d\n", i);
- goto error;
- }
+ if (!dpu_enc->hw_pp[i]) {
+ DPU_ERROR_ENC(dpu_enc,
+ "no pp block assigned at idx: %d\n", i);
+ goto error;
+ }

- if (!hw_ctl[i]) {
- DPU_ERROR_ENC(dpu_enc, "no ctl block assigned"
- "at idx: %d\n", i);
- goto error;
- }
+ if (!hw_ctl[i]) {
+ DPU_ERROR_ENC(dpu_enc,
+ "no ctl block assigned at idx: %d\n", i);
+ goto error;
+ }

- phys->hw_pp = dpu_enc->hw_pp[i];
- phys->hw_ctl = hw_ctl[i];
+ phys->hw_pp = dpu_enc->hw_pp[i];
+ phys->hw_ctl = hw_ctl[i];

- dpu_rm_init_hw_iter(&hw_iter, drm_enc->base.id,
- DPU_HW_BLK_INTF);
- for (j = 0; j < MAX_CHANNELS_PER_ENC; j++) {
- struct dpu_hw_intf *hw_intf;
+ dpu_rm_init_hw_iter(&hw_iter, drm_enc->base.id,
+ DPU_HW_BLK_INTF);
+ for (j = 0; j < MAX_CHANNELS_PER_ENC; j++) {
+ struct dpu_hw_intf *hw_intf;

- if (!dpu_rm_get_hw(&dpu_kms->rm, &hw_iter))
- break;
+ if (!dpu_rm_get_hw(&dpu_kms->rm, &hw_iter))
+ break;

- hw_intf = (struct dpu_hw_intf *)hw_iter.hw;
- if (hw_intf->idx == phys->intf_idx)
- phys->hw_intf = hw_intf;
- }
+ hw_intf = (struct dpu_hw_intf *)hw_iter.hw;
+ if (hw_intf->idx == phys->intf_idx)
+ phys->hw_intf = hw_intf;
+ }

- if (!phys->hw_intf) {
- DPU_ERROR_ENC(dpu_enc,
- "no intf block assigned at idx: %d\n",
- i);
+ if (!phys->hw_intf) {
+ DPU_ERROR_ENC(dpu_enc,
+ "no intf block assigned at idx: %d\n", i);
goto error;
- }
-
- phys->connector = conn->state->connector;
- if (phys->ops.mode_set)
- phys->ops.mode_set(phys, mode, adj_mode);
}
+
+ phys->connector = conn->state->connector;
+ if (phys->ops.mode_set)
+ phys->ops.mode_set(phys, mode, adj_mode);
}

dpu_enc->mode_set_complete = true;
@@ -1203,7 +1191,7 @@ static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc)
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (phys && phys->ops.disable)
+ if (phys->ops.disable)
phys->ops.disable(phys);
}

@@ -1216,8 +1204,7 @@ static void dpu_encoder_virt_disable(struct drm_encoder *drm_enc)
dpu_encoder_resource_control(drm_enc, DPU_ENC_RC_EVENT_STOP);

for (i = 0; i < dpu_enc->num_phys_encs; i++) {
- if (dpu_enc->phys_encs[i])
- dpu_enc->phys_encs[i]->connector = NULL;
+ dpu_enc->phys_encs[i]->connector = NULL;
}

DPU_DEBUG_ENC(dpu_enc, "encoder disabled\n");
@@ -1307,7 +1294,7 @@ void dpu_encoder_toggle_vblank_for_crtc(struct drm_encoder *drm_enc,
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (phys && phys->ops.control_vblank_irq)
+ if (phys->ops.control_vblank_irq)
phys->ops.control_vblank_irq(phys, enable);
}
}
@@ -1463,11 +1450,6 @@ void dpu_encoder_helper_trigger_start(struct dpu_encoder_phys *phys_enc)
{
struct dpu_hw_ctl *ctl;

- if (!phys_enc) {
- DPU_ERROR("invalid encoder\n");
- return;
- }
-
ctl = phys_enc->hw_ctl;
if (ctl->ops.trigger_start) {
ctl->ops.trigger_start(ctl);
@@ -1506,10 +1488,6 @@ static void dpu_encoder_helper_hw_reset(struct dpu_encoder_phys *phys_enc)
struct dpu_hw_ctl *ctl;
int rc;

- if (!phys_enc) {
- DPU_ERROR("invalid encoder\n");
- return;
- }
dpu_enc = to_dpu_encoder_virt(phys_enc->parent);
ctl = phys_enc->hw_ctl;

@@ -1550,7 +1528,7 @@ static void _dpu_encoder_kickoff_phys(struct dpu_encoder_virt *dpu_enc)
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (!phys || phys->enable_state == DPU_ENC_DISABLED)
+ if (phys->enable_state == DPU_ENC_DISABLED)
continue;

ctl = phys->hw_ctl;
@@ -1601,17 +1579,15 @@ void dpu_encoder_trigger_kickoff_pending(struct drm_encoder *drm_enc)
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
phys = dpu_enc->phys_encs[i];

- if (phys) {
- ctl = phys->hw_ctl;
- if (ctl->ops.clear_pending_flush)
- ctl->ops.clear_pending_flush(ctl);
+ ctl = phys->hw_ctl;
+ if (ctl->ops.clear_pending_flush)
+ ctl->ops.clear_pending_flush(ctl);

- /* update only for command mode primary ctl */
- if ((phys == dpu_enc->cur_master) &&
- (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE)
- && ctl->ops.trigger_pending)
- ctl->ops.trigger_pending(ctl);
- }
+ /* update only for command mode primary ctl */
+ if ((phys == dpu_enc->cur_master) &&
+ (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE)
+ && ctl->ops.trigger_pending)
+ ctl->ops.trigger_pending(ctl);
}
}

@@ -1771,12 +1747,10 @@ void dpu_encoder_prepare_for_kickoff(struct drm_encoder *drm_enc)
DPU_ATRACE_BEGIN("enc_prepare_for_kickoff");
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
phys = dpu_enc->phys_encs[i];
- if (phys) {
- if (phys->ops.prepare_for_kickoff)
- phys->ops.prepare_for_kickoff(phys);
- if (phys->enable_state == DPU_ENC_ERR_NEEDS_HW_RESET)
- needs_hw_reset = true;
- }
+ if (phys->ops.prepare_for_kickoff)
+ phys->ops.prepare_for_kickoff(phys);
+ if (phys->enable_state == DPU_ENC_ERR_NEEDS_HW_RESET)
+ needs_hw_reset = true;
}
DPU_ATRACE_END("enc_prepare_for_kickoff");

@@ -1817,7 +1791,7 @@ void dpu_encoder_kickoff(struct drm_encoder *drm_enc)
/* allow phys encs to handle any post-kickoff business */
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
phys = dpu_enc->phys_encs[i];
- if (phys && phys->ops.handle_post_kickoff)
+ if (phys->ops.handle_post_kickoff)
phys->ops.handle_post_kickoff(phys);
}

@@ -1846,7 +1820,7 @@ void dpu_encoder_prepare_commit(struct drm_encoder *drm_enc)

for (i = 0; i < dpu_enc->num_phys_encs; i++) {
phys = dpu_enc->phys_encs[i];
- if (phys && phys->ops.prepare_commit)
+ if (phys->ops.prepare_commit)
phys->ops.prepare_commit(phys);
}
}
@@ -1861,9 +1835,6 @@ static int _dpu_encoder_status_show(struct seq_file *s, void *data)
for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];

- if (!phys)
- continue;
-
seq_printf(s, "intf:%d vsync:%8d underrun:%8d ",
phys->intf_idx - INTF_0,
atomic_read(&phys->vsync_cnt),
@@ -1922,8 +1893,7 @@ static int _dpu_encoder_init_debugfs(struct drm_encoder *drm_enc)
dpu_enc->debugfs_root, dpu_enc, &debugfs_status_fops);

for (i = 0; i < dpu_enc->num_phys_encs; i++)
- if (dpu_enc->phys_encs[i] &&
- dpu_enc->phys_encs[i]->ops.late_register)
+ if (dpu_enc->phys_encs[i]->ops.late_register)
dpu_enc->phys_encs[i]->ops.late_register(
dpu_enc->phys_encs[i],
dpu_enc->debugfs_root);
@@ -2092,11 +2062,8 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc,

for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
-
- if (phys) {
- atomic_set(&phys->vsync_cnt, 0);
- atomic_set(&phys->underrun_cnt, 0);
- }
+ atomic_set(&phys->vsync_cnt, 0);
+ atomic_set(&phys->underrun_cnt, 0);
}
mutex_unlock(&dpu_enc->enc_lock);

@@ -2238,8 +2205,6 @@ int dpu_encoder_wait_for_event(struct drm_encoder *drm_enc,

for (i = 0; i < dpu_enc->num_phys_encs; i++) {
struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
- if (!phys)
- continue;

switch (event) {
case MSM_ENC_COMMIT_DONE:
@@ -2272,7 +2237,6 @@ int dpu_encoder_wait_for_event(struct drm_encoder *drm_enc,
enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder)
{
struct dpu_encoder_virt *dpu_enc = NULL;
- int i;

if (!encoder) {
DPU_ERROR("invalid encoder\n");
@@ -2283,12 +2247,8 @@ enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder)
if (dpu_enc->cur_master)
return dpu_enc->cur_master->intf_mode;

- for (i = 0; i < dpu_enc->num_phys_encs; i++) {
- struct dpu_encoder_phys *phys = dpu_enc->phys_encs[i];
-
- if (phys)
- return phys->intf_mode;
- }
+ if (dpu_enc->num_phys_encs)
+ return dpu_enc->phys_encs[0]->intf_mode;

return INTF_MODE_NONE;
}
--
2.21.0
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