[PATCH v4 2/3] davinci: vpss: dm365: set vpss clk ctrl

[Prabhakar Lad]

From: Manjunath Hadli <manjunath.ha...@ti.com>

request_mem_region for VPSS_CLK_CTRL register and ioremap.
and enable clocks appropriately.

Signed-off-by: Manjunath Hadli <manjunath.ha...@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar....@ti.com>
---
 drivers/media/platform/davinci/vpss.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/drivers/media/platform/davinci/vpss.c 
b/drivers/media/platform/davinci/vpss.c
index 1c96ce8..e4ad63d 100644
--- a/drivers/media/platform/davinci/vpss.c
+++ b/drivers/media/platform/davinci/vpss.c
@@ -69,6 +69,11 @@ MODULE_AUTHOR("Texas Instruments");
 #define DM365_ISP5_CCDCMUX             0x20
 #define DM365_ISP5_PG_FRAME_SIZE       0x28
 #define DM365_VPBE_CLK_CTRL            0x00
+
+#define VPSS_CLK_CTRL                  0x01c40044
+#define VPSS_CLK_CTRL_VENCCLKEN                BIT(3)
+#define VPSS_CLK_CTRL_DACCLKEN         BIT(4)
+
 /*
  * vpss interrupts. VDINT0 - vpss_int0, VDINT1 - vpss_int1,
  * AF - vpss_int3
@@ -112,6 +117,7 @@ struct vpss_hw_ops {
 struct vpss_oper_config {
        __iomem void *vpss_regs_base0;
        __iomem void *vpss_regs_base1;
+       resource_size_t *vpss_regs_base2;
        enum vpss_platform_type platform;
        spinlock_t vpss_lock;
        struct vpss_hw_ops hw_ops;
@@ -492,11 +498,20 @@ static struct platform_driver vpss_driver = {
 
 static void vpss_exit(void)
 {
+       iounmap(oper_cfg.vpss_regs_base2);
+       release_mem_region(VPSS_CLK_CTRL, 4);
        platform_driver_unregister(&vpss_driver);
 }
 
 static int __init vpss_init(void)
 {
+       if (!request_mem_region(VPSS_CLK_CTRL, 4, "vpss_clock_control"))
+               return -EBUSY;
+
+       oper_cfg.vpss_regs_base2 = ioremap(VPSS_CLK_CTRL, 4);
+       writel(VPSS_CLK_CTRL_VENCCLKEN |
+                    VPSS_CLK_CTRL_DACCLKEN, oper_cfg.vpss_regs_base2);
+
        return platform_driver_register(&vpss_driver);
 }
 subsys_initcall(vpss_init);
-- 
1.7.4.1

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