________________________________________
From: Karicheri, Muralidharan
Sent: Wednesday, June 02, 2010 7:31 PM
To: Hiremath, Vaibhav; linux-media@xxxxxxxxxxxxxxx
Cc: mchehab@xxxxxxxxxx; linux-omap@xxxxxxxxxxxxxxx
Subject: RE: [PATCH 2/2] AM3517: Add VPFE Capture driver support to board file
Vaibhav,
See below my comments...
Murali Karicheri
Software Design Engineer
Texas Instruments Inc.
Germantown, MD 20874
phone: 301-407-9583
email: m-karicheri2@xxxxxx
>-----Original Message-----
>From: Hiremath, Vaibhav
>Sent: Thursday, May 27, 2010 9:11 AM
>To: linux-media@xxxxxxxxxxxxxxx
>Cc: mchehab@xxxxxxxxxx; Karicheri, Muralidharan; linux-
>omap@xxxxxxxxxxxxxxx; Hiremath, Vaibhav
>Subject: [PATCH 2/2] AM3517: Add VPFE Capture driver support to board file
>
>From: Vaibhav Hiremath <hvaibhav@xxxxxx>
>
>Also created vpfe master/slave clock aliases, since naming
>convention is different in both Davinci and AM3517 devices.
>
>Signed-off-by: Vaibhav Hiremath <hvaibhav@xxxxxx>
>---
> arch/arm/mach-omap2/board-am3517evm.c | 161
>+++++++++++++++++++++++++++++++++
> 1 files changed, 161 insertions(+), 0 deletions(-)
>
>diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-
>omap2/board-am3517evm.c
>index c1c4389..edcb6db 100644
>--- a/arch/arm/mach-omap2/board-am3517evm.c
>+++ b/arch/arm/mach-omap2/board-am3517evm.c
>@@ -30,15 +30,168 @@
>
> #include <plat/board.h>
> #include <plat/common.h>
>+#include <plat/control.h>
> #include <plat/usb.h>
> #include <plat/display.h>
>
>+#include <media/tvp514x.h>
>+#include <media/davinci/vpfe_capture.h>
>+
> #include "mux.h"
>
> #define LCD_PANEL_PWR 176
> #define LCD_PANEL_BKLIGHT_PWR 182
> #define LCD_PANEL_PWM 181
>
>+/*
>+ * VPFE - Video Decoder interface
>+ */
>+#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
>+
>+/* Inputs available at the TVP5146 */
>+static struct v4l2_input tvp5146_inputs[] = {
>+ {
>+ .index = 0,
>+ .name = "Composite",
>+ .type = V4L2_INPUT_TYPE_CAMERA,
>+ .std = TVP514X_STD_ALL,
>+ },
>+ {
>+ .index = 1,
>+ .name = "S-Video",
>+ .type = V4L2_INPUT_TYPE_CAMERA,
>+ .std = TVP514X_STD_ALL,
>+ },
>+};
>+
>+static struct tvp514x_platform_data tvp5146_pdata = {
>+ .clk_polarity = 0,
>+ .hs_polarity = 1,
>+ .vs_polarity = 1
>+};
>+
>+static struct vpfe_route tvp5146_routes[] = {
>+ {
>+ .input = INPUT_CVBS_VI1A,
>+ .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
>+ },
>+ {
>+ .input = INPUT_SVIDEO_VI2C_VI1C,
>+ .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
>+ },
>+};
>+
>+static struct vpfe_subdev_info vpfe_sub_devs[] = {
>+ {
>+ .name = "tvp5146",
>+ .grp_id = 0,
>+ .num_inputs = ARRAY_SIZE(tvp5146_inputs),
>+ .inputs = tvp5146_inputs,
>+ .routes = tvp5146_routes,
>+ .can_route = 1,
>+ .ccdc_if_params = {
>+ .if_type = VPFE_BT656,
>+ .hdpol = VPFE_PINPOL_POSITIVE,
>+ .vdpol = VPFE_PINPOL_POSITIVE,
>+ },
>+ .board_info = {
>+ I2C_BOARD_INFO("tvp5146", 0x5C),
>+ .platform_data = &tvp5146_pdata,
>+ },
>+ },
>+};
>+
>+static void am3517_evm_clear_vpfe_intr(int vdint)
>+{
>+ unsigned int vpfe_int_clr;
>+
>+ vpfe_int_clr = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
>+
>+ switch (vdint) {
>+ /* VD0 interrrupt */
>+ case INT_35XX_CCDC_VD0_IRQ:
>+ vpfe_int_clr &= ~AM35XX_VPFE_CCDC_VD0_INT_CLR;
>+ vpfe_int_clr |= AM35XX_VPFE_CCDC_VD0_INT_CLR;
>+ break;
>+ /* VD1 interrrupt */
>+ case INT_35XX_CCDC_VD1_IRQ:
>+ vpfe_int_clr &= ~AM35XX_VPFE_CCDC_VD1_INT_CLR;
>+ vpfe_int_clr |= AM35XX_VPFE_CCDC_VD1_INT_CLR;
>+ break;
>+ /* VD2 interrrupt */
>+ case INT_35XX_CCDC_VD2_IRQ:
>+ vpfe_int_clr &= ~AM35XX_VPFE_CCDC_VD2_INT_CLR;
>+ vpfe_int_clr |= AM35XX_VPFE_CCDC_VD2_INT_CLR;
>+ break;
>+ /* Clear all interrrupts */
>+ default:
>+ vpfe_int_clr &= ~(AM35XX_VPFE_CCDC_VD0_INT_CLR |
>+ AM35XX_VPFE_CCDC_VD1_INT_CLR |
>+ AM35XX_VPFE_CCDC_VD2_INT_CLR);
>+ vpfe_int_clr |= (AM35XX_VPFE_CCDC_VD0_INT_CLR |
>+ AM35XX_VPFE_CCDC_VD1_INT_CLR |
>+ AM35XX_VPFE_CCDC_VD2_INT_CLR);
>+ break;
>+ }
>+ omap_ctrl_writel(vpfe_int_clr, AM35XX_CONTROL_LVL_INTR_CLEAR);
>+ vpfe_int_clr = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
>+}
>+
>+static struct vpfe_config vpfe_cfg = {
>+ .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
>+ .i2c_adapter_id = 3,
>+ .sub_devs = vpfe_sub_devs,
>+ .clr_intr = am3517_evm_clear_vpfe_intr,
>+ .card_name = "DM6446 EVM",
>>[MK] You might want to change the card name to match with what you are using.
>> This is what user will see in querycap and should reflect the correct name IMO.
Opps. It should have been Copy-Paste error.
Thanks for pointing me to this. Will change and submit it.
>+ .ccdc = "DM6446 CCDC",
>+};
>+
>+static struct resource vpfe_resources[] = {
>+ {
>+ .start = INT_35XX_CCDC_VD0_IRQ,
>+ .end = INT_35XX_CCDC_VD0_IRQ,
>+ .flags = IORESOURCE_IRQ,
>+ },
>+ {
>+ .start = INT_35XX_CCDC_VD1_IRQ,
>+ .end = INT_35XX_CCDC_VD1_IRQ,
>+ .flags = IORESOURCE_IRQ,
>+ },
>+};
>+
>+static u64 vpfe_capture_dma_mask = DMA_BIT_MASK(32);
>+static struct platform_device vpfe_capture_dev = {
>+ .name = CAPTURE_DRV_NAME,
>+ .id = -1,
>+ .num_resources = ARRAY_SIZE(vpfe_resources),
>+ .resource = vpfe_resources,
>+ .dev = {
>+ .dma_mask = &vpfe_capture_dma_mask,
>+ .coherent_dma_mask = DMA_BIT_MASK(32),
>+ .platform_data = &vpfe_cfg,
>+ },
>+};
>+
>+static struct resource dm644x_ccdc_resource[] = {
>+ /* CCDC Base address */
>+ {
>+ .start = AM35XX_IPSS_VPFE_BASE,
>+ .end = AM35XX_IPSS_VPFE_BASE + 0xffff,
>+ .flags = IORESOURCE_MEM,
>+ },
>+};
>> [MK] Does it make sense to use am35xx_ccdc_resource[] instead? We know that
>> dm6446 ccdc device is re-used by looking at the device name below, right?
>> I think we also need to think about renaming the dm6446 ccdc device to
>> something generic in the future.
You got me right here. I think there are different ways to look at it. I will change this name for now till the time we do not have generic name for it.
Submitting this alone patch shortly.
Thanks,
Vaibhav
>+
>+static struct platform_device dm644x_ccdc_dev = {
>+ .name = "dm644x_ccdc",
>+ .id = -1,
>+ .num_resources = ARRAY_SIZE(dm644x_ccdc_resource),
>+ .resource = dm644x_ccdc_resource,
>+ .dev = {
>+ .dma_mask = &vpfe_capture_dma_mask,
>+ .coherent_dma_mask = DMA_BIT_MASK(32),
>+ },
>+};
>+
> static struct i2c_board_info __initdata am3517evm_i2c_boardinfo[] = {
> {
> I2C_BOARD_INFO("s35390a", 0x30),
>@@ -46,6 +199,7 @@ static struct i2c_board_info __initdata
>am3517evm_i2c_boardinfo[] = {
> },
> };
>
>+
> /*
> * RTC - S35390A
> */
>@@ -261,6 +415,8 @@ static struct omap_board_config_kernel
>am3517_evm_config[] __initdata = {
>
> static struct platform_device *am3517_evm_devices[] __initdata = {
> &am3517_evm_dss_device,
>+ &dm644x_ccdc_dev,
>+ &vpfe_capture_dev,
> };
>
> static void __init am3517_evm_init_irq(void)
>@@ -313,6 +469,11 @@ static void __init am3517_evm_init(void)
>
> i2c_register_board_info(1, am3517evm_i2c_boardinfo,
> ARRAY_SIZE(am3517evm_i2c_boardinfo));
>+
>+ clk_add_alias("master", "dm644x_ccdc", "master",
>+ &vpfe_capture_dev.dev);
>+ clk_add_alias("slave", "dm644x_ccdc", "slave",
>+ &vpfe_capture_dev.dev);
> }
>
> static void __init am3517_evm_map_io(void)
>--
>1.6.2.4
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