DaVinci: DM646x - platform changes for vpif capture and display drivers
VPIF display changes (Chaithrika)
Add platform device and resource structures. Also define a platform specific
clock setup function that can be accessed by the driver to configure the clock
and CPLD.
VPIF caputure changes (Murali)
1) Modify vpif_subdev_info to add board_info, routing information and
vpif interface configuration. Remove addr since it is part of
board_info
2) Add code to setup channel mode and input decoder path for vpif
capture driver
Also incorporated comments against version v0 of the patch series and
added a spinlock to protect writes to common registers
Tested on DM6467 on channel 0 using TVP514x. Following bootargs used
for drivers:
vpif_capture.ch0_bufsize=829440 vpif_display.ch2_bufsize=829440
Signed-off-by: Manjunath Hadli <mrh@ti.com>
Signed-off-by: Brijesh Jadav <brijesh.j@ti.com>
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 8fa2803..0976049 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -32,6 +32,15 @@
#include "clock.h"
#include "mux.h"
+#define DAVINCI_VPIF_BASE (0x01C12000)
+#define VDD3P3V_PWDN_OFFSET (0x48)
+#define VSCLKDIS_OFFSET (0x6C)
+
+#define VDD3P3V_VID_MASK (BIT_MASK(3) | BIT_MASK(2) | BIT_MASK(1) |\
+ BIT_MASK(0))
+#define VSCLKDIS_MASK (BIT_MASK(11) | BIT_MASK(10) | BIT_MASK(9) |\
+ BIT_MASK(8))
+
/*
* Device specific clocks
*/
@@ -686,6 +695,75 @@
.id = -1,
};
+static u64 vpif_dma_mask = DMA_BIT_MASK(32);
+
+static struct resource vpif_resource[] = {
+ {
+ .start = DAVINCI_VPIF_BASE,
+ .end = DAVINCI_VPIF_BASE + 0x03ff,
+ .flags = IORESOURCE_MEM,
+ }
+};
+
+static struct platform_device vpif_dev = {
+ .name = "vpif",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpif_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = vpif_resource,
+ .num_resources = ARRAY_SIZE(vpif_resource),
+};
+
+static struct resource vpif_display_resource[] = {
+ {
+ .start = IRQ_DM646X_VP_VERTINT2,
+ .end = IRQ_DM646X_VP_VERTINT2,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DM646X_VP_VERTINT3,
+ .end = IRQ_DM646X_VP_VERTINT3,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device vpif_display_dev = {
+ .name = "vpif_display",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpif_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = vpif_display_resource,
+ .num_resources = ARRAY_SIZE(vpif_display_resource),
+};
+
+static struct resource vpif_capture_resource[] = {
+ {
+ .start = IRQ_DM646X_VP_VERTINT0,
+ .end = IRQ_DM646X_VP_VERTINT0,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = IRQ_DM646X_VP_VERTINT1,
+ .end = IRQ_DM646X_VP_VERTINT1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct platform_device vpif_capture_dev = {
+ .name = "vpif_capture",
+ .id = -1,
+ .dev = {
+ .dma_mask = &vpif_dma_mask,
+ .coherent_dma_mask = DMA_BIT_MASK(32),
+ },
+ .resource = vpif_capture_resource,
+ .num_resources = ARRAY_SIZE(vpif_capture_resource),
+};
+
/*----------------------------------------------------------------------*/
static struct map_desc dm646x_io_desc[] = {
@@ -814,6 +892,32 @@
platform_device_register(&dm646x_dit_device);
}
+void dm646x_setup_vpif(struct vpif_display_config *display_config,
+ struct vpif_capture_config *capture_config)
+{
+ unsigned int value;
+ void __iomem *base = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE);
+
+ value = __raw_readl(base + VSCLKDIS_OFFSET);
+ value &= ~VSCLKDIS_MASK;
+ __raw_writel(value, base + VSCLKDIS_OFFSET);
+
+ value = __raw_readl(base + VDD3P3V_PWDN_OFFSET);
+ value &= ~VDD3P3V_VID_MASK;
+ __raw_writel(value, base + VDD3P3V_PWDN_OFFSET);
+
+ davinci_cfg_reg(DM646X_STSOMUX_DISABLE);
+ davinci_cfg_reg(DM646X_STSIMUX_DISABLE);
+ davinci_cfg_reg(DM646X_PTSOMUX_DISABLE);
+ davinci_cfg_reg(DM646X_PTSIMUX_DISABLE);
+
+ vpif_display_dev.dev.platform_data = display_config;
+ vpif_capture_dev.dev.platform_data = capture_config;
+ platform_device_register(&vpif_dev);
+ platform_device_register(&vpif_display_dev);
+ platform_device_register(&vpif_capture_dev);
+}
+
void __init dm646x_init(void)
{
davinci_common_init(&davinci_soc_info_dm646x);