提交 fd4b34f6 编写于 作者: S Semwal, Sumit 提交者: Tomi Valkeinen

OMAP2PLUS:DSS2: add opt_clock_available in pdata

Provide a function in pdata to allow dss submodules to check if a given
clock is available on a platform as an optional clock.
Signed-off-by: NSenthilvadivu Guruswamy <svadivu@ti.com>
(based on implementation from Senthil)
Signed-off-by: NSumit Semwal <sumit.semwal@ti.com>
Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com>
上级 4b6b7fa2
......@@ -42,6 +42,20 @@ static struct omap_device_pm_latency omap_dss_latency[] = {
},
};
/* oh_core is used for getting opt-clocks */
static struct omap_hwmod *oh_core;
static bool opt_clock_available(const char *clk_role)
{
int i;
for (i = 0; i < oh_core->opt_clks_cnt; i++) {
if (!strcmp(oh_core->opt_clks[i].role, clk_role))
return true;
}
return false;
}
int __init omap_display_init(struct omap_dss_board_info *board_data)
{
int r = 0;
......@@ -74,9 +88,16 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
oh_count = ARRAY_SIZE(oh_name) - 2;
/* last 2 hwmod dev in oh_name are not available for omap3 */
/* opt_clks are always associated with dss hwmod */
oh_core = omap_hwmod_lookup("dss_core");
if (!oh_core) {
pr_err("Could not look up dss_core.\n");
return -ENODEV;
}
pdata.board_data = board_data;
pdata.board_data->get_last_off_on_transaction_id = NULL;
pdata.opt_clock_available = opt_clock_available;
for (i = 0; i < oh_count; i++) {
oh = omap_hwmod_lookup(oh_name[i]);
......@@ -84,6 +105,7 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
pr_err("Could not look up %s\n", oh_name[i]);
return -ENODEV;
}
od = omap_device_build(dev_name[i], -1, oh, &pdata,
sizeof(struct omap_display_platform_data),
omap_dss_latency,
......
......@@ -240,6 +240,8 @@ static inline int omap_display_init(struct omap_dss_board_info *board_data)
struct omap_display_platform_data {
struct omap_dss_board_info *board_data;
/* TODO: Additional members to be added when PM is considered */
bool (*opt_clock_available)(const char *clk_role);
};
struct omap_video_timings {
......
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