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Message-ID: <20230925154059.837152-11-bryan.odonoghue@linaro.org>
Date: Mon, 25 Sep 2023 16:40:52 +0100
From: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To: linux-arm-msm@...r.kernel.org, linux-media@...r.kernel.org,
hverkuil@...all.nl, laurent.pinchart@...asonboard.com,
robert.foss@...aro.org, todor.too@...il.com, agross@...nel.org,
andersson@...nel.org, konrad.dybcio@...aro.org, mchehab@...nel.org,
sakari.ailus@...ux.intel.com, andrey.konovalov@...aro.org
Cc: linux-kernel@...r.kernel.org,
Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Subject: [PATCH v6 10/17] media: qcom: camss: Untangle if/else spaghetti in camss
We have a very convoluted if/else legacy here which needs to be
rationalised to make it more sustainable.
Adding in another Soc or two will make some of these if statements into
increasingly large multi-clause behemoths.
Introduce switches in the obvious places to despaghetiify.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
Acked-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
.../media/platform/qcom/camss/camss-csiphy.c | 16 +++++----
drivers/media/platform/qcom/camss/camss-vfe.c | 33 +++++++++++--------
.../media/platform/qcom/camss/camss-video.c | 17 +++++-----
3 files changed, 37 insertions(+), 29 deletions(-)
diff --git a/drivers/media/platform/qcom/camss/camss-csiphy.c b/drivers/media/platform/qcom/camss/camss-csiphy.c
index 4310a132dcbe2..18f9a4defb2a4 100644
--- a/drivers/media/platform/qcom/camss/camss-csiphy.c
+++ b/drivers/media/platform/qcom/camss/camss-csiphy.c
@@ -558,19 +558,21 @@ int msm_csiphy_subdev_init(struct camss *camss,
csiphy->cfg.combo_mode = 0;
csiphy->ops = res->ops;
- if (camss->res->version == CAMSS_8x16) {
+ switch (camss->res->version) {
+ case CAMSS_8x16:
csiphy->formats = csiphy_formats_8x16;
csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x16);
- } else if (camss->res->version == CAMSS_8x96 ||
- camss->res->version == CAMSS_660) {
+ break;
+ case CAMSS_8x96:
+ case CAMSS_660:
csiphy->formats = csiphy_formats_8x96;
csiphy->nformats = ARRAY_SIZE(csiphy_formats_8x96);
- } else if (camss->res->version == CAMSS_845 ||
- camss->res->version == CAMSS_8250) {
+ break;
+ case CAMSS_845:
+ case CAMSS_8250:
csiphy->formats = csiphy_formats_sdm845;
csiphy->nformats = ARRAY_SIZE(csiphy_formats_sdm845);
- } else {
- return -EINVAL;
+ break;
}
/* Memory */
diff --git a/drivers/media/platform/qcom/camss/camss-vfe.c b/drivers/media/platform/qcom/camss/camss-vfe.c
index 4d5c32d3dddbf..db8f68819ded9 100644
--- a/drivers/media/platform/qcom/camss/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss/camss-vfe.c
@@ -170,7 +170,8 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
{
struct vfe_device *vfe = to_vfe(line);
- if (vfe->camss->res->version == CAMSS_8x16)
+ switch (vfe->camss->res->version) {
+ case CAMSS_8x16:
switch (sink_code) {
case MEDIA_BUS_FMT_YUYV8_1X16:
{
@@ -218,10 +219,11 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
return sink_code;
}
- else if (vfe->camss->res->version == CAMSS_8x96 ||
- vfe->camss->res->version == CAMSS_660 ||
- vfe->camss->res->version == CAMSS_845 ||
- vfe->camss->res->version == CAMSS_8250)
+ break;
+ case CAMSS_8x96:
+ case CAMSS_660:
+ case CAMSS_845:
+ case CAMSS_8250:
switch (sink_code) {
case MEDIA_BUS_FMT_YUYV8_1X16:
{
@@ -281,8 +283,9 @@ static u32 vfe_src_pad_code(struct vfe_line *line, u32 sink_code,
return sink_code;
}
- else
- return 0;
+ break;
+ }
+ return 0;
}
int vfe_reset(struct vfe_device *vfe)
@@ -1379,7 +1382,8 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
init_completion(&l->output.sof);
init_completion(&l->output.reg_update);
- if (camss->res->version == CAMSS_8x16) {
+ switch (camss->res->version) {
+ case CAMSS_8x16:
if (i == VFE_LINE_PIX) {
l->formats = formats_pix_8x16;
l->nformats = ARRAY_SIZE(formats_pix_8x16);
@@ -1387,8 +1391,9 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
l->formats = formats_rdi_8x16;
l->nformats = ARRAY_SIZE(formats_rdi_8x16);
}
- } else if (camss->res->version == CAMSS_8x96 ||
- camss->res->version == CAMSS_660) {
+ break;
+ case CAMSS_8x96:
+ case CAMSS_660:
if (i == VFE_LINE_PIX) {
l->formats = formats_pix_8x96;
l->nformats = ARRAY_SIZE(formats_pix_8x96);
@@ -1396,12 +1401,12 @@ int msm_vfe_subdev_init(struct camss *camss, struct vfe_device *vfe,
l->formats = formats_rdi_8x96;
l->nformats = ARRAY_SIZE(formats_rdi_8x96);
}
- } else if (camss->res->version == CAMSS_845 ||
- camss->res->version == CAMSS_8250) {
+ break;
+ case CAMSS_845:
+ case CAMSS_8250:
l->formats = formats_rdi_845;
l->nformats = ARRAY_SIZE(formats_rdi_845);
- } else {
- return -EINVAL;
+ break;
}
}
diff --git a/drivers/media/platform/qcom/camss/camss-video.c b/drivers/media/platform/qcom/camss/camss-video.c
index 46a89b5f6c171..a89da5ef47109 100644
--- a/drivers/media/platform/qcom/camss/camss-video.c
+++ b/drivers/media/platform/qcom/camss/camss-video.c
@@ -1006,7 +1006,8 @@ int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
mutex_init(&video->lock);
- if (video->camss->res->version == CAMSS_8x16) {
+ switch (video->camss->res->version) {
+ case CAMSS_8x16:
if (is_pix) {
video->formats = formats_pix_8x16;
video->nformats = ARRAY_SIZE(formats_pix_8x16);
@@ -1014,8 +1015,9 @@ int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
video->formats = formats_rdi_8x16;
video->nformats = ARRAY_SIZE(formats_rdi_8x16);
}
- } else if (video->camss->res->version == CAMSS_8x96 ||
- video->camss->res->version == CAMSS_660) {
+ break;
+ case CAMSS_8x96:
+ case CAMSS_660:
if (is_pix) {
video->formats = formats_pix_8x96;
video->nformats = ARRAY_SIZE(formats_pix_8x96);
@@ -1023,13 +1025,12 @@ int msm_video_register(struct camss_video *video, struct v4l2_device *v4l2_dev,
video->formats = formats_rdi_8x96;
video->nformats = ARRAY_SIZE(formats_rdi_8x96);
}
- } else if (video->camss->res->version == CAMSS_845 ||
- video->camss->res->version == CAMSS_8250) {
+ break;
+ case CAMSS_845:
+ case CAMSS_8250:
video->formats = formats_rdi_845;
video->nformats = ARRAY_SIZE(formats_rdi_845);
- } else {
- ret = -EINVAL;
- goto error_video_register;
+ break;
}
ret = msm_video_init_format(video);
--
2.42.0
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