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Message-ID: <CA+V-a8sGhrTLJnthX+nZESvJfaHFTV=x06eXjQOwwCZwGBxkPQ@mail.gmail.com>
Date: Fri, 7 Sep 2012 23:04:15 +0530
From: Prabhakar Lad <prabhakar.csengg@...il.com>
To: Sekhar Nori <nsekhar@...com>
Cc: Prabhakar Lad <prabhakar.lad@...com>,
dlos <davinci-linux-open-source@...ux.davincidsp.com>,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 2/2] ARM: da850/omap-l138: Add EVM specific code for
VPIF to work
Hi Sekhar,
Thanks for the review.
On Fri, Sep 7, 2012 at 10:48 PM, Sekhar Nori <nsekhar@...com> wrote:
> Hi Prabhakar,
>
> On 8/20/2012 7:38 PM, Prabhakar Lad wrote:
>> From: Manjunath Hadli <manjunath.hadli@...com>
>>
>> Include the expander settings to select VPIF peripheral on
>> UI card and add registration call in EVM init. Also add platform
>> data to configure display and capture devices.
>>
>> Signed-off-by: Manjunath Hadli <manjunath.hadli@...com>
>> Signed-off-by: Lad, Prabhakar <prabhakar.lad@...com>
>> Cc: Sekhar Nori <nsekhar@...com>
>> ---
>> arch/arm/mach-davinci/Kconfig | 9 ++
>> arch/arm/mach-davinci/board-da850-evm.c | 178 +++++++++++++++++++++++++++++++
>> 2 files changed, 187 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
>> index ab99c3c..436b47c 100644
>> --- a/arch/arm/mach-davinci/Kconfig
>> +++ b/arch/arm/mach-davinci/Kconfig
>> @@ -186,6 +186,15 @@ config DA850_UI_RMII
>> NOTE: Please take care while choosing this option, MII PHY will
>> not be functional if RMII mode is selected.
>>
>> +config DA850_UI_SD_VIDEO_PORT
>> + bool "Video Port Interface"
>> + help
>> + Say Y if you want to use Video Port Interface (VPIF) on the
>> + DA850/OMAP-L138 EVM. The Video decoders/encoders are found on the
>> + UI daughter card that is supplied with the EVM.
>
>> + NOTE: Please make sure to disable RMII and CLCD options when you
>> + select Video Port Interface.
>
> I thought you agreed to remove this note. CLCD is not present in
> mainline and RMII cannot be selected along with video because of the
> choice. So, the note is basically useless.
>
Ok.
>> +
>> endchoice
>>
>> config DA850_WL12XX
>> diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
>> index 0149fb4..cdbbced 100644
>> --- a/arch/arm/mach-davinci/board-da850-evm.c
>> +++ b/arch/arm/mach-davinci/board-da850-evm.c
>> @@ -45,6 +45,8 @@
>> #include <mach/aemif.h>
>> #include <mach/spi.h>
>>
>> +#include <media/tvp514x.h>
>> +
>> #define DA850_EVM_PHY_ID "davinci_mdio-0:00"
>> #define DA850_LCD_PWR_PIN GPIO_TO_PIN(2, 8)
>> #define DA850_LCD_BL_PIN GPIO_TO_PIN(2, 15)
>> @@ -121,6 +123,12 @@ static struct spi_board_info da850evm_spi_info[] = {
>> },
>> };
>>
>> +#define TVP5147_CH0 "tvp514x-0"
>> +#define TVP5147_CH1 "tvp514x-1"
>> +
>> +#define VPIF_STATUS 0x002c
>> +#define VPIF_STATUS_CLR 0x0030
>> +
>> #ifdef CONFIG_MTD
>> static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
>> {
>> @@ -452,6 +460,15 @@ static void da850_evm_ui_keys_init(unsigned gpio)
>> }
>> }
>>
>> +#ifdef CONFIG_DA850_UI_SD_VIDEO_PORT
>> +static inline void da850_evm_setup_video_port(int video_sel)
>> +{
>> + gpio_set_value_cansleep(video_sel, 0);
>> +}
>> +#else
>> +static inline void da850_evm_setup_video_port(int video_sel) { }
>> +#endif
>> +
>> static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
>> unsigned ngpio, void *c)
>> {
>> @@ -497,6 +514,8 @@ static int da850_evm_ui_expander_setup(struct i2c_client *client, unsigned gpio,
>>
>> da850_evm_setup_emac_rmii(sel_a);
>>
>> + da850_evm_setup_video_port(sel_c);
>> +
>> return 0;
>>
>> exp_setup_keys_fail:
>> @@ -1149,6 +1168,133 @@ static __init int da850_evm_init_cpufreq(void)
>> static __init int da850_evm_init_cpufreq(void) { return 0; }
>> #endif
>>
>> +#if defined(CONFIG_DA850_UI_SD_VIDEO_PORT)
>> +
>> +/* VPIF capture configuration */
>> +static struct tvp514x_platform_data tvp5146_pdata = {
>> + .clk_polarity = 0,
>> + .hs_polarity = 1,
>> + .vs_polarity = 1
>
> A ',' needed at the end of above line. It will be nice to line up the
> initialization using tabs too.
>
Ok.
>> +};
>> +
>> +#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
>> +
>> +static const struct vpif_input da850_ch0_inputs[] = {
>> + {
>> + .input = {
>> + .index = 0,
>> + .name = "Composite",
>> + .type = V4L2_INPUT_TYPE_CAMERA,
>> + .std = TVP514X_STD_ALL,
>> + },
>> + .subdev_name = TVP5147_CH0,
>> + },
>> +};
>> +
>> +static const struct vpif_input da850_ch1_inputs[] = {
>> + {
>> + .input = {
>> + .index = 0,
>> + .name = "S-Video",
>> + .type = V4L2_INPUT_TYPE_CAMERA,
>> + .std = TVP514X_STD_ALL,
>> + },
>> + .subdev_name = TVP5147_CH1,
>> + },
>> +};
>> +#endif
>> +
>> +static struct vpif_subdev_info da850_vpif_capture_sdev_info[] = {
>> +#if defined(CONFIG_DA850_UI_SD_VIDEO_PORT)
>
> You agreed to get rid of these multiple ifdefs but you have not fixed that.
>
I have merged the top one, at later stage when we go ahead and add sensor
support then we would have require to have define two
da850_vpif_capture_sdev_info
so to avoid it I have kept this one.
>> + {
>> + .name = TVP5147_CH0,
>> + .board_info = {
>> + I2C_BOARD_INFO("tvp5146", 0x5d),
>> + .platform_data = &tvp5146_pdata,
>> + },
>> + .input = INPUT_CVBS_VI2B,
>> + .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
>> + .can_route = 1,
>> + .vpif_if = {
>> + .if_type = VPIF_IF_BT656,
>> + .hd_pol = 1,
>> + .vd_pol = 1,
>> + .fid_pol = 0,
>> + },
>> + },
>> + {
>> + .name = TVP5147_CH1,
>> + .board_info = {
>> + I2C_BOARD_INFO("tvp5146", 0x5c),
>> + .platform_data = &tvp5146_pdata,
>> + },
>> + .input = INPUT_SVIDEO_VI2C_VI1C,
>> + .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
>> + .can_route = 1,
>> + .vpif_if = {
>> + .if_type = VPIF_IF_BT656,
>> + .hd_pol = 1,
>> + .vd_pol = 1,
>> + .fid_pol = 0,
>> + },
>> + },
>> +#endif
>> +};
>> +
>> +static struct vpif_capture_config da850_vpif_capture_config = {
>> + .subdev_info = da850_vpif_capture_sdev_info,
>> + .subdev_count = ARRAY_SIZE(da850_vpif_capture_sdev_info),
>> +#if defined(CONFIG_DA850_UI_SD_VIDEO_PORT)
>> + .chan_config[0] = {
>> + .inputs = da850_ch0_inputs,
>> + .input_count = ARRAY_SIZE(da850_ch0_inputs),
>> + },
>> + .chan_config[1] = {
>> + .inputs = da850_ch1_inputs,
>> + .input_count = ARRAY_SIZE(da850_ch1_inputs),
>> + },
>> +#endif
>> + .card_name = "DA850/OMAP-L138 Video Capture",
>> +};
>> +
>> +/* VPIF display configuration */
>> +static struct vpif_subdev_info da850_vpif_subdev[] = {
>> + {
>> + .name = "adv7343",
>> + .board_info = {
>> + I2C_BOARD_INFO("adv7343", 0x2a),
>> + },
>> + },
>> +};
>> +
>> +static const char const *vpif_output[] = {
>> + "Composite",
>> + "Component",
>> + "S-Video",
>> +};
>> +
>> +static struct vpif_display_config da850_vpif_display_config = {
>> + .subdevinfo = da850_vpif_subdev,
>> + .subdev_count = ARRAY_SIZE(da850_vpif_subdev),
>> + .output = vpif_output,
>> + .output_count = ARRAY_SIZE(vpif_output),
>> + .card_name = "DA850/OMAP-L138 Video Display",
>> +};
>> +
>> +#if defined(CONFIG_VIDEO_DAVINCI_VPIF_DISPLAY) ||\
>> + defined(CONFIG_VIDEO_DAVINCI_VPIF_DISPLAY_MODULE)
>> +#define HAS_VPIF_DISPLAY 1
>> +#else
>> +#define HAS_VPIF_DISPLAY 0
>> +#endif
>> +
>> +#if defined(CONFIG_VIDEO_DAVINCI_VPIF_CAPTURE) ||\
>> + defined(CONFIG_VIDEO_DAVINCI_VPIF_CAPTURE_MODULE)
>> +#define HAS_VPIF_CAPTURE 1
>> +#else
>> +#define HAS_VPIF_CAPTURE 0
>> +#endif
>> +
>> #ifdef CONFIG_DA850_WL12XX
>>
>> static void wl12xx_set_power(int index, bool power_on)
>> @@ -1375,6 +1521,38 @@ static __init void da850_evm_init(void)
>> pr_warning("da850_evm_init: suspend registration failed: %d\n",
>> ret);
>>
>> + if (HAS_VPIF_DISPLAY || HAS_VPIF_CAPTURE) {
>> + ret = da850_register_vpif();
>> + if (ret)
>> + pr_warn("da850_evm_init: VPIF setup failed: %d\n", ret);
>> + }
>> +
>> + if (HAS_VPIF_CAPTURE) {
>> + ret = davinci_cfg_reg_list(da850_vpif_capture_pins);
>> + if (ret)
>> + pr_warn(
>> + "da850_evm_init: VPIF capture mux setup failed: %d\n",
>> + ret);
>> +
>> + ret = da850_register_vpif_capture(&da850_vpif_capture_config);
>> + if (ret)
>> + pr_warn(
>> + "da850_evm_init: VPIF capture setup failed: %d\n", ret);
>> + }
>> +
>> + if (HAS_VPIF_DISPLAY) {
>> + ret = davinci_cfg_reg_list(da850_vpif_display_pins);
>> + if (ret)
>> + pr_warn(
>> + "da850_evm_init: VPIF display mux setup failed: %d\n",
>> + ret);
>> +
>> + ret = da850_register_vpif_display(&da850_vpif_display_config);
>> + if (ret)
>> + pr_warn(
>> + "da850_evm_init: VPIF display setup failed: %d\n", ret);
>> + }
>> +
>
> Registering the platform device only when driver is configured is not
> required. Platform device registration should just reflect what is
> present in the hardware. Removing this should also get rid of the ugly
> line breaks above.
>
Ok.
Thanks,
--Prabhakar
> Thanks,
> Sekhar
> _______________________________________________
> Davinci-linux-open-source mailing list
> Davinci-linux-open-source@...ux.davincidsp.com
> http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
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