Use devm_clk_get() instead of clk_get() for dss, and for outputs hdmi and venc.
This reduces reduces code and simplifies error handling.
Signed-off-by: Archit Taneja <archit@xxxxxx>
---
drivers/video/omap2/dss/dss.c | 18 +++---------------
drivers/video/omap2/dss/hdmi.c | 16 ++--------------
drivers/video/omap2/dss/venc.c | 10 +---------
3 files changed, 6 insertions(+), 38 deletions(-)
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 054c2a2..645b3bc 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -767,13 +767,11 @@ int dss_dpi_select_source(enum omap_channel channel)
static int dss_get_clocks(void)
{
struct clk *clk;
- int r;
- clk = clk_get(&dss.pdev->dev, "fck");
+ clk = devm_clk_get(&dss.pdev->dev, "fck");
if (IS_ERR(clk)) {
DSSERR("can't get clock fck\n");
- r = PTR_ERR(clk);
- goto err;
+ return PTR_ERR(clk);
}
dss.dss_clk = clk;
@@ -782,8 +780,7 @@ static int dss_get_clocks(void)
clk = clk_get(NULL, dss.feat->clk_name);
if (IS_ERR(clk)) {
DSSERR("Failed to get %s\n", dss.feat->clk_name);
- r = PTR_ERR(clk);
- goto err;
+ return PTR_ERR(clk);
}
} else {
clk = NULL;
@@ -792,21 +789,12 @@ static int dss_get_clocks(void)
dss.dpll4_m4_ck = clk;
return 0;
-
-err:
- if (dss.dss_clk)
- clk_put(dss.dss_clk);
- if (dss.dpll4_m4_ck)
- clk_put(dss.dpll4_m4_ck);
-
- return r;
}
static void dss_put_clocks(void)
{
if (dss.dpll4_m4_ck)
clk_put(dss.dpll4_m4_ck);
- clk_put(dss.dss_clk);
}
static int dss_runtime_get(void)
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 7292364..c7e0bf7 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -804,7 +804,7 @@ static int hdmi_get_clocks(struct platform_device *pdev)
{
struct clk *clk;
- clk = clk_get(&pdev->dev, "sys_clk");
+ clk = devm_clk_get(&pdev->dev, "sys_clk");
if (IS_ERR(clk)) {
DSSERR("can't get sys_clk\n");
return PTR_ERR(clk);
@@ -815,12 +815,6 @@ static int hdmi_get_clocks(struct platform_device *pdev)
return 0;
}
-static void hdmi_put_clocks(void)
-{
- if (hdmi.sys_clk)
- clk_put(hdmi.sys_clk);
-}
-
#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
{
@@ -1100,7 +1094,7 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
r = hdmi_panel_init();
if (r) {
DSSERR("can't init panel\n");
- goto err_panel_init;
+ return r;
}
dss_debugfs_create_file("hdmi", hdmi_dump_regs);
@@ -1110,10 +1104,6 @@ static int __init omapdss_hdmihw_probe(struct platform_device *pdev)
hdmi_probe_pdata(pdev);
return 0;
-
-err_panel_init:
- hdmi_put_clocks();
- return r;
}
static int __exit hdmi_remove_child(struct device *dev, void *data)
@@ -1135,8 +1125,6 @@ static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
pm_runtime_disable(&pdev->dev);
- hdmi_put_clocks();
-
return 0;
}
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 006caf3..c27ab6f 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -721,7 +721,7 @@ static int venc_get_clocks(struct platform_device *pdev)
struct clk *clk;
if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK)) {
- clk = clk_get(&pdev->dev, "tv_dac_clk");
+ clk = devm_clk_get(&pdev->dev, "tv_dac_clk");
if (IS_ERR(clk)) {
DSSERR("can't get tv_dac_clk\n");
return PTR_ERR(clk);
@@ -735,12 +735,6 @@ static int venc_get_clocks(struct platform_device *pdev)
return 0;
}
-static void venc_put_clocks(void)
-{
- if (venc.tv_dac_clk)
- clk_put(venc.tv_dac_clk);
-}
-
static struct omap_dss_device * __init venc_find_dssdev(struct platform_device *pdev)
{
struct omap_dss_board_info *pdata = pdev->dev.platform_data;
@@ -886,7 +880,6 @@ static int __init omap_venchw_probe(struct platform_device *pdev)
err_panel_init:
err_runtime_get:
pm_runtime_disable(&pdev->dev);
- venc_put_clocks();
return r;
}
@@ -904,7 +897,6 @@ static int __exit omap_venchw_remove(struct platform_device *pdev)
venc_uninit_output(pdev);
pm_runtime_disable(&pdev->dev);
- venc_put_clocks();
return 0;
}
--
1.7.10.4
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