[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/dm355.c b/arch/arm/mach-davinci/dm355.c
index b49c3b7..8e98bb0 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -345,8 +345,8 @@
 	CLK(NULL, "pll1_aux", &pll1_aux_clk),
 	CLK(NULL, "pll1_sysclkbp", &pll1_sysclkbp),
 	CLK(NULL, "vpss_dac", &vpss_dac_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, "clkout1", &clkout1_clk),
 	CLK(NULL, "clkout2", &clkout2_clk),
 	CLK(NULL, "pll2", &pll2_clk),
@@ -873,9 +873,6 @@
 	if (!cpu_is_davinci_dm355())
 		return 0;
 
-	/* Add ccdc clock aliases */
-	clk_add_alias("master", dm355_ccdc_dev.name, "vpss_master", NULL);
-	clk_add_alias("slave", dm355_ccdc_dev.name, "vpss_master", NULL);
 	davinci_cfg_reg(DM355_INT_EDMA_CC);
 	platform_device_register(&dm355_edma_device);
 	platform_device_register(&dm355_vpss_device);