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OMAP2PLUS: DSS2: Clean up omap_display_init() 

Currently, omap_display_init() maintains arrays for hwmod name(oh_name) and the
correspnding platform_device name(dev_name) needed by omap_device_build().
A variable oh_count keeps a track of the number of devices to build from oh_name
based on what omap revision it is.

Clean this up by maintaining an array of omap_dss_hwmod_data struct which is
defined for each omap revision as suggested by Tomi Valkeinen. Assign the
corresponding omap_dss_hwmod_data array struct to the pointer curr_dss_hwmod in
omap_display_init().

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Archit Taneja 2011-04-18 09:32:13 +05:30 committed by Tomi Valkeinen
parent ab46d8b2a3
commit 179e045369
1 changed files with 49 additions and 26 deletions
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75
arch/arm/mach-omap2/display.c
View File

@ -56,37 +56,58 @@ static bool opt_clock_available(const char *clk_role)
return false;
}
struct omap_dss_hwmod_data {
const char *oh_name;
const char *dev_name;
const int id;
};
static const struct omap_dss_hwmod_data omap2_dss_hwmod_data[] __initdata = {
{ "dss_core", "omapdss_dss", -1 },
{ "dss_dispc", "omapdss_dispc", -1 },
{ "dss_rfbi", "omapdss_rfbi", -1 },
{ "dss_venc", "omapdss_venc", -1 },
};
static const struct omap_dss_hwmod_data omap3_dss_hwmod_data[] __initdata = {
{ "dss_core", "omapdss_dss", -1 },
{ "dss_dispc", "omapdss_dispc", -1 },
{ "dss_rfbi", "omapdss_rfbi", -1 },
{ "dss_venc", "omapdss_venc", -1 },
{ "dss_dsi1", "omapdss_dsi1", -1 },
};
static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initdata = {
{ "dss_core", "omapdss_dss", -1 },
{ "dss_dispc", "omapdss_dispc", -1 },
{ "dss_rfbi", "omapdss_rfbi", -1 },
{ "dss_venc", "omapdss_venc", -1 },
{ "dss_dsi1", "omapdss_dsi1", -1 },
{ "dss_dsi2", "omapdss_dsi2", -1 },
{ "dss_hdmi", "omapdss_hdmi", -1 },
};
int __init omap_display_init(struct omap_dss_board_info *board_data)
{
int r = 0;
struct omap_hwmod *oh;
struct omap_device *od;
int i;
int i, oh_count;
struct omap_display_platform_data pdata;
/*
* omap: valid DSS hwmod names
* omap2,3,4: dss_core, dss_dispc, dss_rfbi, dss_venc
* omap3,4: dss_dsi1
* omap4: dss_dsi2, dss_hdmi
*/
char *oh_name[] = { "dss_core", "dss_dispc", "dss_rfbi", "dss_venc",
"dss_dsi1", "dss_dsi2", "dss_hdmi" };
char *dev_name[] = { "omapdss_dss", "omapdss_dispc", "omapdss_rfbi",
"omapdss_venc", "omapdss_dsi1", "omapdss_dsi2",
"omapdss_hdmi" };
int oh_count;
const struct omap_dss_hwmod_data *curr_dss_hwmod;
memset(&pdata, 0, sizeof(pdata));
if (cpu_is_omap24xx())
oh_count = ARRAY_SIZE(oh_name) - 3;
/* last 3 hwmod dev in oh_name are not available for omap2 */
else if (cpu_is_omap44xx())
oh_count = ARRAY_SIZE(oh_name);
else
oh_count = ARRAY_SIZE(oh_name) - 2;
/* last 2 hwmod dev in oh_name are not available for omap3 */
if (cpu_is_omap24xx()) {
curr_dss_hwmod = omap2_dss_hwmod_data;
oh_count = ARRAY_SIZE(omap2_dss_hwmod_data);
} else if (cpu_is_omap34xx()) {
curr_dss_hwmod = omap3_dss_hwmod_data;
oh_count = ARRAY_SIZE(omap3_dss_hwmod_data);
} else {
curr_dss_hwmod = omap4_dss_hwmod_data;
oh_count = ARRAY_SIZE(omap4_dss_hwmod_data);
}
/* opt_clks are always associated with dss hwmod */
oh_core = omap_hwmod_lookup("dss_core");
@ -100,19 +121,21 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
pdata.opt_clock_available = opt_clock_available;
for (i = 0; i < oh_count; i++) {
oh = omap_hwmod_lookup(oh_name[i]);
oh = omap_hwmod_lookup(curr_dss_hwmod[i].oh_name);
if (!oh) {
pr_err("Could not look up %s\n", oh_name[i]);
pr_err("Could not look up %s\n",
curr_dss_hwmod[i].oh_name);
return -ENODEV;
}
od = omap_device_build(dev_name[i], -1, oh, &pdata,
od = omap_device_build(curr_dss_hwmod[i].dev_name,
curr_dss_hwmod[i].id, oh, &pdata,
sizeof(struct omap_display_platform_data),
omap_dss_latency,
ARRAY_SIZE(omap_dss_latency), 0);
if (WARN((IS_ERR(od)), "Could not build omap_device for %s\n",
oh_name[i]))
curr_dss_hwmod[i].oh_name))
return -ENODEV;
}
omap_display_device.dev.platform_data = board_data;