[PATCH 5/5] media: ov7670: Add possibility to disable pixclk during hblank.

[Javier Martin]

Signed-off-by: Javier Martin <javier.mar...@vista-silicon.com>
---
 drivers/media/i2c/ov7670.c |    8 ++++++++
 include/media/ov7670.h     |    1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/media/i2c/ov7670.c b/drivers/media/i2c/ov7670.c
index 54fb535..f7e4341 100644
--- a/drivers/media/i2c/ov7670.c
+++ b/drivers/media/i2c/ov7670.c
@@ -211,6 +211,7 @@ struct ov7670_info {
        u8 clkrc;                       /* Clock divider value */
        bool use_smbus;                 /* Use smbus I/O instead of I2C */
        bool pll_bypass;
+       bool pclk_hb_disable;
        enum ov7670_model model;
 };
 
@@ -1709,6 +1710,9 @@ static int ov7670_probe(struct i2c_client *client,
 
                if (config->pll_bypass && id->driver_data != MODEL_OV7670)
                        info->pll_bypass = true;
+
+               if (config->pclk_hb_disable)
+                       info->pclk_hb_disable = true;
        }
 
        /* Make sure it's an ov7670 */
@@ -1735,6 +1739,10 @@ static int ov7670_probe(struct i2c_client *client,
                tpf.denominator = 30;
                ov7670_set_framerate(sd, &tpf);
        }
+
+       if (info->pclk_hb_disable)
+               ov7670_write(sd, REG_COM10, COM10_PCLK_HB);
+
        return 0;
 }
 
diff --git a/include/media/ov7670.h b/include/media/ov7670.h
index a68c8bb..1913d51 100644
--- a/include/media/ov7670.h
+++ b/include/media/ov7670.h
@@ -16,6 +16,7 @@ struct ov7670_config {
        int clock_speed;                /* External clock speed (MHz) */
        bool use_smbus;                 /* Use smbus I/O instead of I2C */
        bool pll_bypass;                /* Choose whether to bypass the PLL */
+       bool pclk_hb_disable;           /* Disable toggling pixclk during 
horizontal blanking */
 };
 
 #endif
-- 
1.7.9.5

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