From 6ec84a28f5f40e3ebef5d8186c4b11b10aa295d7 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Mon, 22 Oct 2012 11:40:56 -0300 Subject: [PATCH] [media] smiapp-pll: Create a structure for OP and VT limits OP and VT limits have identical fields, create a shared structure for both. Signed-off-by: Laurent Pinchart Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/i2c/smiapp-pll.c | 54 +++++++++++++------------- drivers/media/i2c/smiapp-pll.h | 30 +++++++------- drivers/media/i2c/smiapp/smiapp-core.c | 43 +++++++++----------- 3 files changed, 58 insertions(+), 69 deletions(-) diff --git a/drivers/media/i2c/smiapp-pll.c b/drivers/media/i2c/smiapp-pll.c index d3243602c77a..cbef446180f8 100644 --- a/drivers/media/i2c/smiapp-pll.c +++ b/drivers/media/i2c/smiapp-pll.c @@ -122,7 +122,7 @@ static int __smiapp_pll_calculate(struct device *dev, more_mul_max); /* Don't go above the division capability of op sys clock divider. */ more_mul_max = min(more_mul_max, - limits->max_op_sys_clk_div * pll->pre_pll_clk_div + limits->op.max_sys_clk_div * pll->pre_pll_clk_div / div); dev_dbg(dev, "more_mul_max: max_op_sys_clk_div check: %d\n", more_mul_max); @@ -152,7 +152,7 @@ static int __smiapp_pll_calculate(struct device *dev, more_mul_factor = lcm(div, pll->pre_pll_clk_div) / div; dev_dbg(dev, "more_mul_factor: %d\n", more_mul_factor); - more_mul_factor = lcm(more_mul_factor, limits->min_op_sys_clk_div); + more_mul_factor = lcm(more_mul_factor, limits->op.min_sys_clk_div); dev_dbg(dev, "more_mul_factor: min_op_sys_clk_div: %d\n", more_mul_factor); i = roundup(more_mul_min, more_mul_factor); @@ -220,19 +220,19 @@ static int __smiapp_pll_calculate(struct device *dev, dev_dbg(dev, "min_vt_div: %d\n", min_vt_div); min_vt_div = max(min_vt_div, DIV_ROUND_UP(pll->pll_op_clk_freq_hz, - limits->max_vt_pix_clk_freq_hz)); + limits->vt.max_pix_clk_freq_hz)); dev_dbg(dev, "min_vt_div: max_vt_pix_clk_freq_hz: %d\n", min_vt_div); min_vt_div = max_t(uint32_t, min_vt_div, - limits->min_vt_pix_clk_div - * limits->min_vt_sys_clk_div); + limits->vt.min_pix_clk_div + * limits->vt.min_sys_clk_div); dev_dbg(dev, "min_vt_div: min_vt_clk_div: %d\n", min_vt_div); - max_vt_div = limits->max_vt_sys_clk_div * limits->max_vt_pix_clk_div; + max_vt_div = limits->vt.max_sys_clk_div * limits->vt.max_pix_clk_div; dev_dbg(dev, "max_vt_div: %d\n", max_vt_div); max_vt_div = min(max_vt_div, DIV_ROUND_UP(pll->pll_op_clk_freq_hz, - limits->min_vt_pix_clk_freq_hz)); + limits->vt.min_pix_clk_freq_hz)); dev_dbg(dev, "max_vt_div: min_vt_pix_clk_freq_hz: %d\n", max_vt_div); @@ -240,28 +240,28 @@ static int __smiapp_pll_calculate(struct device *dev, * Find limitsits for sys_clk_div. Not all values are possible * with all values of pix_clk_div. */ - min_sys_div = limits->min_vt_sys_clk_div; + min_sys_div = limits->vt.min_sys_clk_div; dev_dbg(dev, "min_sys_div: %d\n", min_sys_div); min_sys_div = max(min_sys_div, DIV_ROUND_UP(min_vt_div, - limits->max_vt_pix_clk_div)); + limits->vt.max_pix_clk_div)); dev_dbg(dev, "min_sys_div: max_vt_pix_clk_div: %d\n", min_sys_div); min_sys_div = max(min_sys_div, pll->pll_op_clk_freq_hz - / limits->max_vt_sys_clk_freq_hz); + / limits->vt.max_sys_clk_freq_hz); dev_dbg(dev, "min_sys_div: max_pll_op_clk_freq_hz: %d\n", min_sys_div); min_sys_div = clk_div_even_up(min_sys_div); dev_dbg(dev, "min_sys_div: one or even: %d\n", min_sys_div); - max_sys_div = limits->max_vt_sys_clk_div; + max_sys_div = limits->vt.max_sys_clk_div; dev_dbg(dev, "max_sys_div: %d\n", max_sys_div); max_sys_div = min(max_sys_div, DIV_ROUND_UP(max_vt_div, - limits->min_vt_pix_clk_div)); + limits->vt.min_pix_clk_div)); dev_dbg(dev, "max_sys_div: min_vt_pix_clk_div: %d\n", max_sys_div); max_sys_div = min(max_sys_div, DIV_ROUND_UP(pll->pll_op_clk_freq_hz, - limits->min_vt_pix_clk_freq_hz)); + limits->vt.min_pix_clk_freq_hz)); dev_dbg(dev, "max_sys_div: min_vt_pix_clk_freq_hz: %d\n", max_sys_div); /* @@ -276,13 +276,13 @@ static int __smiapp_pll_calculate(struct device *dev, sys_div += 2 - (sys_div & 1)) { uint16_t pix_div = DIV_ROUND_UP(vt_div, sys_div); - if (pix_div < limits->min_vt_pix_clk_div - || pix_div > limits->max_vt_pix_clk_div) { + if (pix_div < limits->vt.min_pix_clk_div + || pix_div > limits->vt.max_pix_clk_div) { dev_dbg(dev, "pix_div %d too small or too big (%d--%d)\n", pix_div, - limits->min_vt_pix_clk_div, - limits->max_vt_pix_clk_div); + limits->vt.min_pix_clk_div, + limits->vt.max_pix_clk_div); continue; } @@ -327,36 +327,36 @@ static int __smiapp_pll_calculate(struct device *dev, if (!rval) rval = bounds_check( dev, pll->op_sys_clk_div, - limits->min_op_sys_clk_div, limits->max_op_sys_clk_div, + limits->op.min_sys_clk_div, limits->op.max_sys_clk_div, "op_sys_clk_div"); if (!rval) rval = bounds_check( dev, pll->op_pix_clk_div, - limits->min_op_pix_clk_div, limits->max_op_pix_clk_div, + limits->op.min_pix_clk_div, limits->op.max_pix_clk_div, "op_pix_clk_div"); if (!rval) rval = bounds_check( dev, pll->op_sys_clk_freq_hz, - limits->min_op_sys_clk_freq_hz, - limits->max_op_sys_clk_freq_hz, + limits->op.min_sys_clk_freq_hz, + limits->op.max_sys_clk_freq_hz, "op_sys_clk_freq_hz"); if (!rval) rval = bounds_check( dev, pll->op_pix_clk_freq_hz, - limits->min_op_pix_clk_freq_hz, - limits->max_op_pix_clk_freq_hz, + limits->op.min_pix_clk_freq_hz, + limits->op.max_pix_clk_freq_hz, "op_pix_clk_freq_hz"); if (!rval) rval = bounds_check( dev, pll->vt_sys_clk_freq_hz, - limits->min_vt_sys_clk_freq_hz, - limits->max_vt_sys_clk_freq_hz, + limits->vt.min_sys_clk_freq_hz, + limits->vt.max_sys_clk_freq_hz, "vt_sys_clk_freq_hz"); if (!rval) rval = bounds_check( dev, pll->vt_pix_clk_freq_hz, - limits->min_vt_pix_clk_freq_hz, - limits->max_vt_pix_clk_freq_hz, + limits->vt.min_pix_clk_freq_hz, + limits->vt.max_pix_clk_freq_hz, "vt_pix_clk_freq_hz"); return rval; diff --git a/drivers/media/i2c/smiapp-pll.h b/drivers/media/i2c/smiapp-pll.h index 439fe5d665b0..8500e6e562bb 100644 --- a/drivers/media/i2c/smiapp-pll.h +++ b/drivers/media/i2c/smiapp-pll.h @@ -73,6 +73,17 @@ struct smiapp_pll { uint32_t pixel_rate_csi; }; +struct smiapp_pll_branch_limits { + uint16_t min_sys_clk_div; + uint16_t max_sys_clk_div; + uint32_t min_sys_clk_freq_hz; + uint32_t max_sys_clk_freq_hz; + uint16_t min_pix_clk_div; + uint16_t max_pix_clk_div; + uint32_t min_pix_clk_freq_hz; + uint32_t max_pix_clk_freq_hz; +}; + struct smiapp_pll_limits { /* Strict PLL limits */ uint32_t min_ext_clk_freq_hz; @@ -86,23 +97,8 @@ struct smiapp_pll_limits { uint32_t min_pll_op_freq_hz; uint32_t max_pll_op_freq_hz; - uint16_t min_vt_sys_clk_div; - uint16_t max_vt_sys_clk_div; - uint32_t min_vt_sys_clk_freq_hz; - uint32_t max_vt_sys_clk_freq_hz; - uint16_t min_vt_pix_clk_div; - uint16_t max_vt_pix_clk_div; - uint32_t min_vt_pix_clk_freq_hz; - uint32_t max_vt_pix_clk_freq_hz; - - uint16_t min_op_sys_clk_div; - uint16_t max_op_sys_clk_div; - uint32_t min_op_sys_clk_freq_hz; - uint32_t max_op_sys_clk_freq_hz; - uint16_t min_op_pix_clk_div; - uint16_t max_op_pix_clk_div; - uint32_t min_op_pix_clk_freq_hz; - uint32_t max_op_pix_clk_freq_hz; + struct smiapp_pll_branch_limits vt; + struct smiapp_pll_branch_limits op; /* Other relevant limits */ uint32_t min_line_length_pck_bin; diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c index 42316cb57041..81ec4ac5bcdd 100644 --- a/drivers/media/i2c/smiapp/smiapp-core.c +++ b/drivers/media/i2c/smiapp/smiapp-core.c @@ -252,23 +252,23 @@ static int smiapp_pll_update(struct smiapp_sensor *sensor) .min_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_PLL_OP_FREQ_HZ], .max_pll_op_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_PLL_OP_FREQ_HZ], - .min_op_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV], - .max_op_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV], - .min_op_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV], - .max_op_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV], - .min_op_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ], - .max_op_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ], - .min_op_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ], - .max_op_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ], - - .min_vt_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV], - .max_vt_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV], - .min_vt_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV], - .max_vt_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV], - .min_vt_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ], - .max_vt_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ], - .min_vt_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ], - .max_vt_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ], + .op.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_DIV], + .op.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_DIV], + .op.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_DIV], + .op.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_DIV], + .op.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_SYS_CLK_FREQ_HZ], + .op.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_SYS_CLK_FREQ_HZ], + .op.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_OP_PIX_CLK_FREQ_HZ], + .op.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_OP_PIX_CLK_FREQ_HZ], + + .vt.min_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_DIV], + .vt.max_sys_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_DIV], + .vt.min_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_DIV], + .vt.max_pix_clk_div = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_DIV], + .vt.min_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_SYS_CLK_FREQ_HZ], + .vt.max_sys_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_SYS_CLK_FREQ_HZ], + .vt.min_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MIN_VT_PIX_CLK_FREQ_HZ], + .vt.max_pix_clk_freq_hz = sensor->limits[SMIAPP_LIMIT_MAX_VT_PIX_CLK_FREQ_HZ], .min_line_length_pck_bin = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK_BIN], .min_line_length_pck = sensor->limits[SMIAPP_LIMIT_MIN_LINE_LENGTH_PCK], @@ -283,14 +283,7 @@ static int smiapp_pll_update(struct smiapp_sensor *sensor) * requirements regarding them are essentially the * same as on VT ones. */ - lim.min_op_sys_clk_div = lim.min_vt_sys_clk_div; - lim.max_op_sys_clk_div = lim.max_vt_sys_clk_div; - lim.min_op_pix_clk_div = lim.min_vt_pix_clk_div; - lim.max_op_pix_clk_div = lim.max_vt_pix_clk_div; - lim.min_op_sys_clk_freq_hz = lim.min_vt_sys_clk_freq_hz; - lim.max_op_sys_clk_freq_hz = lim.max_vt_sys_clk_freq_hz; - lim.min_op_pix_clk_freq_hz = lim.min_vt_pix_clk_freq_hz; - lim.max_op_pix_clk_freq_hz = lim.max_vt_pix_clk_freq_hz; + lim.op = lim.vt; } pll->binning_horizontal = sensor->binning_horizontal; -- 2.30.2