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OMAP2PLUS:DSS2: Use opt_clock_available from pdata 

hwmod databases provide information about which optional clocks are available
for a given platform. This is available via a function pointer opt_clock_enable
in pdata.

Use this information during get/enable/disable/put of clocks.

Signed-off-by: Sumit Semwal <sumit.semwal@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Semwal, Sumit 2011-03-01 02:42:14 -06:00 committed by Tomi Valkeinen
parent fd4b34f607
commit a1a0dccaea
1 changed files with 30 additions and 16 deletions
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46
drivers/video/omap2/dss/dss.c
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@ -706,6 +706,7 @@ static int dss_get_clock(struct clk **clock, const char *clk_name)
static int dss_get_clocks(void)
{
int r;
struct omap_display_platform_data *pdata = dss.pdev->dev.platform_data;
dss.dss_ick = NULL;
dss.dss_fck = NULL;
@ -721,17 +722,28 @@ static int dss_get_clocks(void)
if (r)
goto err;
r = dss_get_clock(&dss.dss_sys_clk, "sys_clk");
if (r)
if (!pdata->opt_clock_available) {
r = -ENODEV;
goto err;
}
r = dss_get_clock(&dss.dss_tv_fck, "tv_clk");
if (r)
goto err;
if (pdata->opt_clock_available("sys_clk")) {
r = dss_get_clock(&dss.dss_sys_clk, "sys_clk");
if (r)
goto err;
}
r = dss_get_clock(&dss.dss_video_fck, "video_clk");
if (r)
goto err;
if (pdata->opt_clock_available("tv_clk")) {
r = dss_get_clock(&dss.dss_tv_fck, "tv_clk");
if (r)
goto err;
}
if (pdata->opt_clock_available("video_clk")) {
r = dss_get_clock(&dss.dss_video_fck, "video_clk");
if (r)
goto err;
}
return 0;
@ -754,9 +766,11 @@ static void dss_put_clocks(void)
{
if (dss.dss_video_fck)
clk_put(dss.dss_video_fck);
clk_put(dss.dss_tv_fck);
if (dss.dss_tv_fck)
clk_put(dss.dss_tv_fck);
if (dss.dss_sys_clk)
clk_put(dss.dss_sys_clk);
clk_put(dss.dss_fck);
clk_put(dss.dss_sys_clk);
clk_put(dss.dss_ick);
}
@ -805,11 +819,11 @@ static void dss_clk_enable_no_ctx(enum dss_clock clks)
clk_enable(dss.dss_ick);
if (clks & DSS_CLK_FCK)
clk_enable(dss.dss_fck);
if (clks & DSS_CLK_SYSCK)
if ((clks & DSS_CLK_SYSCK) && dss.dss_sys_clk)
clk_enable(dss.dss_sys_clk);
if (clks & DSS_CLK_TVFCK)
if ((clks & DSS_CLK_TVFCK) && dss.dss_tv_fck)
clk_enable(dss.dss_tv_fck);
if (clks & DSS_CLK_VIDFCK)
if ((clks & DSS_CLK_VIDFCK) && dss.dss_video_fck)
clk_enable(dss.dss_video_fck);
dss.num_clks_enabled += num_clks;
@ -833,11 +847,11 @@ static void dss_clk_disable_no_ctx(enum dss_clock clks)
clk_disable(dss.dss_ick);
if (clks & DSS_CLK_FCK)
clk_disable(dss.dss_fck);
if (clks & DSS_CLK_SYSCK)
if ((clks & DSS_CLK_SYSCK) && dss.dss_sys_clk)
clk_disable(dss.dss_sys_clk);
if (clks & DSS_CLK_TVFCK)
if ((clks & DSS_CLK_TVFCK) && dss.dss_tv_fck)
clk_disable(dss.dss_tv_fck);
if (clks & DSS_CLK_VIDFCK)
if ((clks & DSS_CLK_VIDFCK) && dss.dss_video_fck)
clk_disable(dss.dss_video_fck);
dss.num_clks_enabled -= num_clks;