drm/msm/dpu: Cleanup callers of dpu_hw_blk_init

Outside of superfluous parameter checks the dpu_hw_blk_init()
doesn't have any failure paths. Switch it over to be a void
function and we can remove error handling paths in all the functions
that call it. While we're in those functions remove unneeded
initialization for a static variable.

v3: No changes
v2: Removed a cleanup intended for a different patch

Reviewed-by: Sean Paul <sean@poorly.run>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Jordan Crouse 2018-12-03 15:47:18 -07:00 committed by Rob Clark
parent fa79bcc3d1
commit 53edf46259
8 changed files with 14 additions and 100 deletions

View File

@ -30,16 +30,10 @@ static LIST_HEAD(dpu_hw_blk_list);
* @type: hw block type - enum dpu_hw_blk_type
* @id: instance id of the hw block
* @ops: Pointer to block operations
* return: 0 if success; error code otherwise
*/
int dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id,
void dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id,
struct dpu_hw_blk_ops *ops)
{
if (!hw_blk) {
pr_err("invalid parameters\n");
return -EINVAL;
}
INIT_LIST_HEAD(&hw_blk->list);
hw_blk->type = type;
hw_blk->id = id;
@ -51,8 +45,6 @@ int dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id,
mutex_lock(&dpu_hw_blk_lock);
list_add(&hw_blk->list, &dpu_hw_blk_list);
mutex_unlock(&dpu_hw_blk_lock);
return 0;
}
/**

View File

@ -44,7 +44,7 @@ struct dpu_hw_blk {
struct dpu_hw_blk_ops ops;
};
int dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id,
void dpu_hw_blk_init(struct dpu_hw_blk *hw_blk, u32 type, int id,
struct dpu_hw_blk_ops *ops);
void dpu_hw_blk_destroy(struct dpu_hw_blk *hw_blk);

View File

@ -483,10 +483,7 @@ static void _setup_ctl_ops(struct dpu_hw_ctl_ops *ops,
ops->get_bitmask_intf = dpu_hw_ctl_get_bitmask_intf;
};
static struct dpu_hw_blk_ops dpu_hw_ops = {
.start = NULL,
.stop = NULL,
};
static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_ctl *dpu_hw_ctl_init(enum dpu_ctl idx,
void __iomem *addr,
@ -494,7 +491,6 @@ struct dpu_hw_ctl *dpu_hw_ctl_init(enum dpu_ctl idx,
{
struct dpu_hw_ctl *c;
struct dpu_ctl_cfg *cfg;
int rc;
c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c)
@ -513,18 +509,9 @@ struct dpu_hw_ctl *dpu_hw_ctl_init(enum dpu_ctl idx,
c->mixer_count = m->mixer_count;
c->mixer_hw_caps = m->mixer;
rc = dpu_hw_blk_init(&c->base, DPU_HW_BLK_CTL, idx, &dpu_hw_ops);
if (rc) {
DPU_ERROR("failed to init hw blk %d\n", rc);
goto blk_init_error;
}
dpu_hw_blk_init(&c->base, DPU_HW_BLK_CTL, idx, &dpu_hw_ops);
return c;
blk_init_error:
kzfree(c);
return ERR_PTR(rc);
}
void dpu_hw_ctl_destroy(struct dpu_hw_ctl *ctx)

View File

@ -264,10 +264,7 @@ static void _setup_intf_ops(struct dpu_hw_intf_ops *ops,
ops->get_line_count = dpu_hw_intf_get_line_count;
}
static struct dpu_hw_blk_ops dpu_hw_ops = {
.start = NULL,
.stop = NULL,
};
static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx,
void __iomem *addr,
@ -275,7 +272,6 @@ struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx,
{
struct dpu_hw_intf *c;
struct dpu_intf_cfg *cfg;
int rc;
c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c)
@ -296,18 +292,9 @@ struct dpu_hw_intf *dpu_hw_intf_init(enum dpu_intf idx,
c->mdss = m;
_setup_intf_ops(&c->ops, c->cap->features);
rc = dpu_hw_blk_init(&c->base, DPU_HW_BLK_INTF, idx, &dpu_hw_ops);
if (rc) {
DPU_ERROR("failed to init hw blk %d\n", rc);
goto blk_init_error;
}
dpu_hw_blk_init(&c->base, DPU_HW_BLK_INTF, idx, &dpu_hw_ops);
return c;
blk_init_error:
kzfree(c);
return ERR_PTR(rc);
}
void dpu_hw_intf_destroy(struct dpu_hw_intf *intf)

View File

@ -175,10 +175,7 @@ static void _setup_mixer_ops(struct dpu_mdss_cfg *m,
ops->setup_gc = dpu_hw_lm_gc;
};
static struct dpu_hw_blk_ops dpu_hw_ops = {
.start = NULL,
.stop = NULL,
};
static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
void __iomem *addr,
@ -186,7 +183,6 @@ struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
{
struct dpu_hw_mixer *c;
struct dpu_lm_cfg *cfg;
int rc;
c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c)
@ -203,18 +199,9 @@ struct dpu_hw_mixer *dpu_hw_lm_init(enum dpu_lm idx,
c->cap = cfg;
_setup_mixer_ops(m, &c->ops, c->cap->features);
rc = dpu_hw_blk_init(&c->base, DPU_HW_BLK_LM, idx, &dpu_hw_ops);
if (rc) {
DPU_ERROR("failed to init hw blk %d\n", rc);
goto blk_init_error;
}
dpu_hw_blk_init(&c->base, DPU_HW_BLK_LM, idx, &dpu_hw_ops);
return c;
blk_init_error:
kzfree(c);
return ERR_PTR(rc);
}
void dpu_hw_lm_destroy(struct dpu_hw_mixer *lm)

View File

@ -199,10 +199,7 @@ static void _setup_pingpong_ops(struct dpu_hw_pingpong_ops *ops,
ops->get_line_count = dpu_hw_pp_get_line_count;
};
static struct dpu_hw_blk_ops dpu_hw_ops = {
.start = NULL,
.stop = NULL,
};
static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx,
void __iomem *addr,
@ -210,7 +207,6 @@ struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx,
{
struct dpu_hw_pingpong *c;
struct dpu_pingpong_cfg *cfg;
int rc;
c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c)
@ -226,18 +222,9 @@ struct dpu_hw_pingpong *dpu_hw_pingpong_init(enum dpu_pingpong idx,
c->caps = cfg;
_setup_pingpong_ops(&c->ops, c->caps);
rc = dpu_hw_blk_init(&c->base, DPU_HW_BLK_PINGPONG, idx, &dpu_hw_ops);
if (rc) {
DPU_ERROR("failed to init hw blk %d\n", rc);
goto blk_init_error;
}
dpu_hw_blk_init(&c->base, DPU_HW_BLK_PINGPONG, idx, &dpu_hw_ops);
return c;
blk_init_error:
kzfree(c);
return ERR_PTR(rc);
}
void dpu_hw_pingpong_destroy(struct dpu_hw_pingpong *pp)

View File

@ -696,10 +696,7 @@ static struct dpu_sspp_cfg *_sspp_offset(enum dpu_sspp sspp,
return ERR_PTR(-ENOMEM);
}
static struct dpu_hw_blk_ops dpu_hw_ops = {
.start = NULL,
.stop = NULL,
};
static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_pipe *dpu_hw_sspp_init(enum dpu_sspp idx,
void __iomem *addr, struct dpu_mdss_cfg *catalog,
@ -707,7 +704,6 @@ struct dpu_hw_pipe *dpu_hw_sspp_init(enum dpu_sspp idx,
{
struct dpu_hw_pipe *hw_pipe;
struct dpu_sspp_cfg *cfg;
int rc;
if (!addr || !catalog)
return ERR_PTR(-EINVAL);
@ -729,18 +725,9 @@ struct dpu_hw_pipe *dpu_hw_sspp_init(enum dpu_sspp idx,
hw_pipe->cap = cfg;
_setup_layer_ops(hw_pipe, hw_pipe->cap->features);
rc = dpu_hw_blk_init(&hw_pipe->base, DPU_HW_BLK_SSPP, idx, &dpu_hw_ops);
if (rc) {
DPU_ERROR("failed to init hw blk %d\n", rc);
goto blk_init_error;
}
dpu_hw_blk_init(&hw_pipe->base, DPU_HW_BLK_SSPP, idx, &dpu_hw_ops);
return hw_pipe;
blk_init_error:
kzfree(hw_pipe);
return ERR_PTR(rc);
}
void dpu_hw_sspp_destroy(struct dpu_hw_pipe *ctx)

View File

@ -321,10 +321,7 @@ static const struct dpu_mdp_cfg *_top_offset(enum dpu_mdp mdp,
return ERR_PTR(-EINVAL);
}
static struct dpu_hw_blk_ops dpu_hw_ops = {
.start = NULL,
.stop = NULL,
};
static struct dpu_hw_blk_ops dpu_hw_ops;
struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx,
void __iomem *addr,
@ -332,7 +329,6 @@ struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx,
{
struct dpu_hw_mdp *mdp;
const struct dpu_mdp_cfg *cfg;
int rc;
if (!addr || !m)
return ERR_PTR(-EINVAL);
@ -354,18 +350,9 @@ struct dpu_hw_mdp *dpu_hw_mdptop_init(enum dpu_mdp idx,
mdp->caps = cfg;
_setup_mdp_ops(&mdp->ops, mdp->caps->features);
rc = dpu_hw_blk_init(&mdp->base, DPU_HW_BLK_TOP, idx, &dpu_hw_ops);
if (rc) {
DPU_ERROR("failed to init hw blk %d\n", rc);
goto blk_init_error;
}
dpu_hw_blk_init(&mdp->base, DPU_HW_BLK_TOP, idx, &dpu_hw_ops);
return mdp;
blk_init_error:
kzfree(mdp);
return ERR_PTR(rc);
}
void dpu_hw_mdp_destroy(struct dpu_hw_mdp *mdp)