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author | Sakari Ailus <sakari.ailus@linux.intel.com> | 2014-09-16 01:35:18 +0400 |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-10-28 18:34:57 +0300 |
commit | c859470ac1bf2b89c147f7e456ac16070003d8c8 (patch) | |
tree | 47411ab337199e790f3d5bd0cfc50a4019625645 /drivers/media/i2c | |
parent | c37f9bf91900cce9c619b689b28d45a04c1644f1 (diff) | |
download | linux-c859470ac1bf2b89c147f7e456ac16070003d8c8.tar.xz |
[media] smiapp-pll: Separate bounds checking into a separate function
Enough work for this function already.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/i2c')
-rw-r--r-- | drivers/media/i2c/smiapp-pll.c | 110 |
1 files changed, 59 insertions, 51 deletions
diff --git a/drivers/media/i2c/smiapp-pll.c b/drivers/media/i2c/smiapp-pll.c index d14af5c1020b..bde8eb839ccc 100644 --- a/drivers/media/i2c/smiapp-pll.c +++ b/drivers/media/i2c/smiapp-pll.c @@ -87,6 +87,64 @@ static void print_pll(struct device *dev, struct smiapp_pll *pll) dev_dbg(dev, "vt_pix_clk_freq_hz \t%u\n", pll->vt_pix_clk_freq_hz); } +static int check_all_bounds(struct device *dev, + const struct smiapp_pll_limits *limits, + struct smiapp_pll *pll) +{ + int rval; + + rval = bounds_check(dev, pll->pll_ip_clk_freq_hz, + limits->min_pll_ip_freq_hz, + limits->max_pll_ip_freq_hz, + "pll_ip_clk_freq_hz"); + if (!rval) + rval = bounds_check( + dev, pll->pll_multiplier, + limits->min_pll_multiplier, limits->max_pll_multiplier, + "pll_multiplier"); + if (!rval) + rval = bounds_check( + dev, pll->pll_op_clk_freq_hz, + limits->min_pll_op_freq_hz, limits->max_pll_op_freq_hz, + "pll_op_clk_freq_hz"); + if (!rval) + rval = bounds_check( + dev, pll->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->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->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->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->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->vt.min_pix_clk_freq_hz, + limits->vt.max_pix_clk_freq_hz, + "vt_pix_clk_freq_hz"); + + return rval; +} + /* * Heuristically guess the PLL tree for a given common multiplier and * divisor. Begin with the operational timing and continue to video @@ -117,7 +175,6 @@ static int __smiapp_pll_calculate(struct device *dev, uint32_t min_vt_div, max_vt_div, vt_div; uint32_t min_sys_div, max_sys_div; unsigned int i; - int rval; /* * Get pre_pll_clk_div so that our pll_op_clk_freq_hz won't be @@ -323,56 +380,7 @@ static int __smiapp_pll_calculate(struct device *dev, pll->pixel_rate_csi = pll->op_pix_clk_freq_hz * lane_op_clock_ratio; - rval = bounds_check(dev, pll->pll_ip_clk_freq_hz, - limits->min_pll_ip_freq_hz, - limits->max_pll_ip_freq_hz, - "pll_ip_clk_freq_hz"); - if (!rval) - rval = bounds_check( - dev, pll->pll_multiplier, - limits->min_pll_multiplier, limits->max_pll_multiplier, - "pll_multiplier"); - if (!rval) - rval = bounds_check( - dev, pll->pll_op_clk_freq_hz, - limits->min_pll_op_freq_hz, limits->max_pll_op_freq_hz, - "pll_op_clk_freq_hz"); - if (!rval) - rval = bounds_check( - dev, pll->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->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->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->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->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->vt.min_pix_clk_freq_hz, - limits->vt.max_pix_clk_freq_hz, - "vt_pix_clk_freq_hz"); - - return rval; + return check_all_bounds(dev, limits, pll); } int smiapp_pll_calculate(struct device *dev, |