aboutsummaryrefslogtreecommitdiff
path: root/drivers/media/platform
diff options
context:
space:
mode:
authorArun Kumar K <arun.kk@samsung.com>2013-05-27 03:39:29 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-06-03 15:52:33 -0300
commitfc906b6d189f26e869b11b94eaa9a733b3950740 (patch)
tree23db5c205e402cac7e4e9f8cdef5f0ff45e56998 /drivers/media/platform
parent644469aefbac3c007284b43ac932ba6f1794a110 (diff)
downloadlinaro-lsk-fc906b6d189f26e869b11b94eaa9a733b3950740.tar.gz
[media] s5p-mfc: Remove special clock usage in driver
MFC uses two clocks - MFC gate clock and special clock which is named as "sclk_mfc" in exynos4 and "aclk_333" in exynos5 SoC. The driver was doing just a clk_prepare on this special clock without a clk_enable call. As this sclk is the parent of gate clock, it gets prepared and enabled along with the gate clock. So there is no need for the driver to use this sclk. This patch removes the sclk usage from driver. Signed-off-by: Arun Kumar K <arun.kk@samsung.com> Signed-off-by: Kamil Debski <k.debski@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/platform')
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc.c2
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_common.h1
-rw-r--r--drivers/media/platform/s5p-mfc/s5p_mfc_pm.c19
3 files changed, 0 insertions, 22 deletions
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 3b2345e1609..78280eb3f8c 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1362,7 +1362,6 @@ static struct s5p_mfc_variant mfc_drvdata_v5 = {
.port_num = MFC_NUM_PORTS,
.buf_size = &buf_size_v5,
.buf_align = &mfc_buf_align_v5,
- .mclk_name = "sclk_mfc",
.fw_name = "s5p-mfc.fw",
};
@@ -1389,7 +1388,6 @@ static struct s5p_mfc_variant mfc_drvdata_v6 = {
.port_num = MFC_NUM_PORTS_V6,
.buf_size = &buf_size_v6,
.buf_align = &mfc_buf_align_v6,
- .mclk_name = "aclk_333",
.fw_name = "s5p-mfc-v6.fw",
};
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
index 975d1b2a764..4e81ab892bd 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_common.h
@@ -232,7 +232,6 @@ struct s5p_mfc_variant {
unsigned int port_num;
struct s5p_mfc_buf_size *buf_size;
struct s5p_mfc_buf_align *buf_align;
- char *mclk_name;
char *fw_name;
};
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c b/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c
index 6aa38a56aaf..cab6e0b42ae 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_pm.c
@@ -50,19 +50,6 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
goto err_p_ip_clk;
}
- pm->clock = clk_get(&dev->plat_dev->dev, dev->variant->mclk_name);
- if (IS_ERR(pm->clock)) {
- mfc_err("Failed to get MFC clock\n");
- ret = PTR_ERR(pm->clock);
- goto err_g_ip_clk_2;
- }
-
- ret = clk_prepare(pm->clock);
- if (ret) {
- mfc_err("Failed to prepare MFC clock\n");
- goto err_p_ip_clk_2;
- }
-
atomic_set(&pm->power, 0);
#ifdef CONFIG_PM_RUNTIME
pm->device = &dev->plat_dev->dev;
@@ -72,10 +59,6 @@ int s5p_mfc_init_pm(struct s5p_mfc_dev *dev)
atomic_set(&clk_ref, 0);
#endif
return 0;
-err_p_ip_clk_2:
- clk_put(pm->clock);
-err_g_ip_clk_2:
- clk_unprepare(pm->clock_gate);
err_p_ip_clk:
clk_put(pm->clock_gate);
err_g_ip_clk:
@@ -86,8 +69,6 @@ void s5p_mfc_final_pm(struct s5p_mfc_dev *dev)
{
clk_unprepare(pm->clock_gate);
clk_put(pm->clock_gate);
- clk_unprepare(pm->clock);
- clk_put(pm->clock);
#ifdef CONFIG_PM_RUNTIME
pm_runtime_disable(pm->device);
#endif