From: Teresa Gámez Date: Wed, 18 May 2011 13:41:45 +0000 (-0300) Subject: [media] V4L: mt9m111: fix pixel clock X-Git-Tag: firefly_0821_release~7613^2~1037^2~78 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4bc90dea7be181cd876500b1d766faaa77c3d493;p=firefly-linux-kernel-4.4.55.git [media] V4L: mt9m111: fix pixel clock This camera driver supports only rising edge, which is the default setting of the device. The function mt9m111_setup_pixfmt() overwrites this setting. So the driver actually uses falling edge. This patch corrects that. Signed-off-by: Teresa Gámez [g.liakhovetski@gmx.de: removed superfluous register write] Signed-off-by: Guennadi Liakhovetski Tested-by: Teresa Gámez Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/mt9m111.c b/drivers/media/video/mt9m111.c index 53fa2a7bf156..ebebed929627 100644 --- a/drivers/media/video/mt9m111.c +++ b/drivers/media/video/mt9m111.c @@ -315,10 +315,20 @@ static int mt9m111_setup_rect(struct i2c_client *client, static int mt9m111_setup_pixfmt(struct i2c_client *client, u16 outfmt) { int ret; + u16 mask = MT9M111_OUTFMT_PROCESSED_BAYER | MT9M111_OUTFMT_RGB | + MT9M111_OUTFMT_BYPASS_IFP | MT9M111_OUTFMT_SWAP_RGB_EVEN | + MT9M111_OUTFMT_RGB565 | MT9M111_OUTFMT_RGB555 | + MT9M111_OUTFMT_SWAP_YCbCr_Cb_Cr | + MT9M111_OUTFMT_SWAP_YCbCr_C_Y; - ret = reg_write(OUTPUT_FORMAT_CTRL2_A, outfmt); + ret = reg_read(OUTPUT_FORMAT_CTRL2_A); + if (ret >= 0) + ret = reg_write(OUTPUT_FORMAT_CTRL2_A, (ret & ~mask) | outfmt); if (!ret) - ret = reg_write(OUTPUT_FORMAT_CTRL2_B, outfmt); + ret = reg_read(OUTPUT_FORMAT_CTRL2_B); + if (ret >= 0) + ret = reg_write(OUTPUT_FORMAT_CTRL2_B, (ret & ~mask) | outfmt); + return ret; }