From b1c5794382208c455c4e511c3f0b55565b69dd53 Mon Sep 17 00:00:00 2001 From: Janusz Krzysztofik Date: Sun, 13 Oct 2019 09:50:46 -0300 Subject: [PATCH] media: ov6650: Drop obsolete .pclk_limit attribute That attribute used to be obtained from platform data by a soc_camera host interface and passed to the sensor driver for .s_mbus_fmt() video operation callback, later reused as .set_fmt() pad operation callback, to be able to limit frame rate. The driver stored that value in its private structure for further use from .g/s_parm(), later converted to g/s_frame_interval(). On conversion of the driver from soc_camera sensor to a standalone V4L2 subdevice by commit 23a52386fabe ("media: ov6650: convert to standalone v4l2 subdevice"), that attribute had been replaced by a constant and hardcoded to an arbitrarily chosen pixel clock limit. Drop it. Host interfaces can limit frame rate if needed by calling .s_frame_interval(). Signed-off-by: Janusz Krzysztofik Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/ov6650.c | 14 ++++---------- 1 file changed, 4 insertions(+), 10 deletions(-) diff --git a/drivers/media/i2c/ov6650.c b/drivers/media/i2c/ov6650.c index f60aeb1..a502444 100644 --- a/drivers/media/i2c/ov6650.c +++ b/drivers/media/i2c/ov6650.c @@ -197,7 +197,6 @@ struct ov6650 { struct v4l2_clk *clk; bool half_scale; /* scale down output by 2 */ struct v4l2_rect rect; /* sensor cropping window */ - unsigned long pclk_limit; /* from host */ unsigned long pclk_max; /* from resolution and format */ struct v4l2_fract tpf; /* as requested with s_frame_interval */ u32 code; @@ -546,8 +545,7 @@ static bool is_unscaled_ok(int width, int height, struct v4l2_rect *rect) return width > rect->width >> 1 || height > rect->height >> 1; } -static u8 to_clkrc(struct v4l2_fract *timeperframe, - unsigned long pclk_limit, unsigned long pclk_max) +static u8 to_clkrc(struct v4l2_fract *timeperframe, unsigned long pclk_max) { unsigned long pclk; @@ -557,9 +555,6 @@ static u8 to_clkrc(struct v4l2_fract *timeperframe, else pclk = pclk_max; - if (pclk_limit && pclk_limit < pclk) - pclk = pclk_limit; - return (pclk_max - 1) / pclk; } @@ -653,10 +648,9 @@ static int ov6650_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) clkrc = CLKRC_12MHz; mclk = 12000000; - priv->pclk_limit = 1334000; dev_dbg(&client->dev, "using 12MHz input clock\n"); - clkrc |= to_clkrc(&priv->tpf, priv->pclk_limit, priv->pclk_max); + clkrc |= to_clkrc(&priv->tpf, priv->pclk_max); pclk = priv->pclk_max / GET_CLKRC_DIV(clkrc); dev_dbg(&client->dev, "pixel clock divider: %ld.%ld\n", @@ -756,7 +750,7 @@ static int ov6650_g_frame_interval(struct v4l2_subdev *sd, struct ov6650 *priv = to_ov6650(client); ival->interval.numerator = GET_CLKRC_DIV(to_clkrc(&priv->tpf, - priv->pclk_limit, priv->pclk_max)); + priv->pclk_max)); ival->interval.denominator = FRAME_RATE_MAX; dev_dbg(&client->dev, "Frame interval: %u/%u s\n", @@ -787,7 +781,7 @@ static int ov6650_s_frame_interval(struct v4l2_subdev *sd, tpf->numerator = div; tpf->denominator = FRAME_RATE_MAX; - clkrc = to_clkrc(tpf, priv->pclk_limit, priv->pclk_max); + clkrc = to_clkrc(tpf, priv->pclk_max); ret = ov6650_reg_rmw(client, REG_CLKRC, clkrc, CLKRC_DIV_MASK); if (!ret) { -- 2.7.4