[media] media: davinci: vpss: enable vpss clocks

By default the VPSS clocks were enabled in capture driver
for davinci family which creates duplicates for dm355/dm365/dm644x.
This patch adds support to enable the VPSS clocks in VPSS driver,
which avoids duplication of code and also adding clock aliases.
This patch uses PM runtime API to enable/disable clock, instead
of DaVinci clock framework. con_ids for master and slave clocks of
vpss is added in pm_domain.
This patch cleanups the VPSS clock enabling in the capture driver,
and also removes the clock alias in machine file. Along side adds
a vpss slave clock for DM365 as mentioned by Sekhar
(https://patchwork.kernel.org/patch/1221261/).
The Suspend/Resume in dm644x_ccdc.c which enabled/disabled the VPSS clock
is now implemented as part of the VPSS driver.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index ee0e994..c2a9273 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -300,8 +300,8 @@
 	CLK(NULL, "dsp", &dsp_clk),
 	CLK(NULL, "arm", &arm_clk),
 	CLK(NULL, "vicp", &vicp_clk),
-	CLK(NULL, "vpss_master", &vpss_master_clk),
-	CLK(NULL, "vpss_slave", &vpss_slave_clk),
+	CLK("vpss", "master", &vpss_master_clk),
+	CLK("vpss", "slave", &vpss_slave_clk),
 	CLK(NULL, "arm", &arm_clk),
 	CLK(NULL, "uart0", &uart0_clk),
 	CLK(NULL, "uart1", &uart1_clk),
@@ -901,11 +901,6 @@
 		dm644x_vpfe_dev.dev.platform_data = vpfe_cfg;
 		platform_device_register(&dm644x_ccdc_dev);
 		platform_device_register(&dm644x_vpfe_dev);
-		/* Add ccdc clock aliases */
-		clk_add_alias("master", dm644x_ccdc_dev.name,
-			      "vpss_master", NULL);
-		clk_add_alias("slave", dm644x_ccdc_dev.name,
-			      "vpss_slave", NULL);
 	}
 
 	if (vpbe_cfg) {