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[media] smiapp-pll: Create a structure for OP and VT limits

Ver código fonte 
OP and VT limits have identical fields, create a shared structure for
both.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Esse commit está contido em:
Laurent Pinchart
2012-10-22 11:40:56 -03:00
commit de Mauro Carvalho Chehab
pai f5984bbdf4
commit 6ec84a28f5
3 arquivos alterados com 57 adições e 68 exclusões
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54
drivers/media/i2c/smiapp-pll.c
Ver arquivo

@@ -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;