As features data are read only, there is no need to allocate their
copy on the heap.
Signed-off-by: Ladislav Michl <ladis@xxxxxxxxxxxxxx>
Suggested-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
Note: This patch is not runtime tested. If you have hardware and can test
it, please do so and eventually add you Tested-by tag. Thank you.
Note2: Marcus, I hope it is okay to add your Suggested-by tag. Please
let me know, if I'm wrong.
drivers/video/fbdev/omap2/omapfb/dss/dispc.c | 39 ++++++---------------
drivers/video/fbdev/omap2/omapfb/dss/dss.c | 45 +++++++------------------
drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c | 31 ++++-------------
3 files changed, 29 insertions(+), 86 deletions(-)
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
index 7a75dfda9845..6be13a106ece 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dispc.c
@@ -3976,52 +3976,33 @@ static const struct dispc_features omap54xx_dispc_feats = {
.has_writeback = true,
};
-static int dispc_init_features(struct platform_device *pdev)
+static const struct dispc_features* dispc_get_features(void)
{
- const struct dispc_features *src;
- struct dispc_features *dst;
-
- dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
- if (!dst) {
- dev_err(&pdev->dev, "Failed to allocate DISPC Features\n");
- return -ENOMEM;
- }
-
switch (omapdss_get_version()) {
case OMAPDSS_VER_OMAP24xx:
- src = &omap24xx_dispc_feats;
- break;
+ return &omap24xx_dispc_feats;
case OMAPDSS_VER_OMAP34xx_ES1:
- src = &omap34xx_rev1_0_dispc_feats;
- break;
+ return &omap34xx_rev1_0_dispc_feats;
case OMAPDSS_VER_OMAP34xx_ES3:
case OMAPDSS_VER_OMAP3630:
case OMAPDSS_VER_AM35xx:
case OMAPDSS_VER_AM43xx:
- src = &omap34xx_rev3_0_dispc_feats;
- break;
+ return &omap34xx_rev3_0_dispc_feats;
case OMAPDSS_VER_OMAP4430_ES1:
case OMAPDSS_VER_OMAP4430_ES2:
case OMAPDSS_VER_OMAP4:
- src = &omap44xx_dispc_feats;
- break;
+ return &omap44xx_dispc_feats;
case OMAPDSS_VER_OMAP5:
case OMAPDSS_VER_DRA7xx:
- src = &omap54xx_dispc_feats;
- break;
+ return &omap54xx_dispc_feats;
default:
- return -ENODEV;
+ return NULL;
}
-
- memcpy(dst, src, sizeof(*dst));
- dispc.feat = dst;
-
- return 0;
}
static irqreturn_t dispc_irq_handler(int irq, void *arg)
@@ -4078,9 +4059,9 @@ static int dispc_bind(struct device *dev, struct device *master, void *data)
spin_lock_init(&dispc.control_lock);
- r = dispc_init_features(dispc.pdev);
- if (r)
- return r;
+ dispc.feat = dispc_get_features();
+ if (!dispc.feat)
+ return -ENODEV;
dispc_mem = platform_get_resource(dispc.pdev, IORESOURCE_MEM, 0);
if (!dispc_mem) {
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss.c b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
index 48c6500c24e1..9a255ffe77c5 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dss.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dss.c
@@ -887,58 +887,37 @@ static const struct dss_features dra7xx_dss_feats = {
.num_ports = ARRAY_SIZE(dra7xx_ports),
};
-static int dss_init_features(struct platform_device *pdev)
+static const struct dss_features* dss_get_features(void)
{
- const struct dss_features *src;
- struct dss_features *dst;
-
- dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
- if (!dst) {
- dev_err(&pdev->dev, "Failed to allocate local DSS Features\n");
- return -ENOMEM;
- }
-
switch (omapdss_get_version()) {
case OMAPDSS_VER_OMAP24xx:
- src = &omap24xx_dss_feats;
- break;
+ return &omap24xx_dss_feats;
case OMAPDSS_VER_OMAP34xx_ES1:
case OMAPDSS_VER_OMAP34xx_ES3:
case OMAPDSS_VER_AM35xx:
- src = &omap34xx_dss_feats;
- break;
+ return &omap34xx_dss_feats;
case OMAPDSS_VER_OMAP3630:
- src = &omap3630_dss_feats;
- break;
+ return &omap3630_dss_feats;
case OMAPDSS_VER_OMAP4430_ES1:
case OMAPDSS_VER_OMAP4430_ES2:
case OMAPDSS_VER_OMAP4:
- src = &omap44xx_dss_feats;
- break;
+ return &omap44xx_dss_feats;
case OMAPDSS_VER_OMAP5:
- src = &omap54xx_dss_feats;
- break;
+ return &omap54xx_dss_feats;
case OMAPDSS_VER_AM43xx:
- src = &am43xx_dss_feats;
- break;
+ return &am43xx_dss_feats;
case OMAPDSS_VER_DRA7xx:
- src = &dra7xx_dss_feats;
- break;
+ return &dra7xx_dss_feats;
default:
- return -ENODEV;
+ return NULL;
}
-
- memcpy(dst, src, sizeof(*dst));
- dss.feat = dst;
-
- return 0;
}
static void dss_uninit_ports(struct platform_device *pdev);
@@ -1104,9 +1083,9 @@ static int dss_bind(struct device *dev)
dss.pdev = pdev;
- r = dss_init_features(dss.pdev);
- if (r)
- return r;
+ dss.feat = dss_get_features();
+ if (!dss.feat)
+ return -ENODEV;
dss_mem = platform_get_resource(dss.pdev, IORESOURCE_MEM, 0);
if (!dss_mem) {
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c
index 9a13c35fd6d8..07d46e14cea4 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi_phy.c
@@ -189,47 +189,30 @@ static const struct hdmi_phy_features omap54xx_phy_feats = {
.max_phy = 186000000,
};
-static int hdmi_phy_init_features(struct platform_device *pdev)
+static const struct hdmi_phy_features* hdmi_phy_get_features(void)
{
- struct hdmi_phy_features *dst;
- const struct hdmi_phy_features *src;
-
- dst = devm_kzalloc(&pdev->dev, sizeof(*dst), GFP_KERNEL);
- if (!dst) {
- dev_err(&pdev->dev, "Failed to allocate HDMI PHY Features\n");
- return -ENOMEM;
- }
-
switch (omapdss_get_version()) {
case OMAPDSS_VER_OMAP4430_ES1:
case OMAPDSS_VER_OMAP4430_ES2:
case OMAPDSS_VER_OMAP4:
- src = &omap44xx_phy_feats;
- break;
+ return &omap44xx_phy_feats;
case OMAPDSS_VER_OMAP5:
case OMAPDSS_VER_DRA7xx:
- src = &omap54xx_phy_feats;
- break;
+ return &omap54xx_phy_feats;
default:
- return -ENODEV;
+ return NULL;
}
-
- memcpy(dst, src, sizeof(*dst));
- phy_feat = dst;
-
- return 0;
}
int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy)
{
- int r;
struct resource *res;
- r = hdmi_phy_init_features(pdev);
- if (r)
- return r;
+ phy_feat = hdmi_phy_get_features();
+ if (!phy_feat)
+ return -ENODEV;
res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy");
if (!res) {
--
2.15.0
--
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