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OMAP: DSS2: DSI: Add DSI pad muxing support

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Add dsi_mux_pads function pointer to omap_dss_board_info, and use the
function pointer in DSI code to configure the DSI pads either to normal
DSI operation, or to pull down when in ULPS.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2010-07-30 11:57:57 +03:00
parent 22d6d67626
commit d1f5857e4b
2 changed files with 16 additions and 0 deletions
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15
drivers/video/omap2/dss/dsi.c
View file

@ -244,6 +244,8 @@ static struct
void __iomem *base;
int irq;
void (*dsi_mux_pads)(bool enable);
struct dsi_clock_info current_cinfo;
bool vdds_dsi_enabled;
@ -2035,6 +2037,9 @@ static int dsi_cio_init(struct omap_dss_device *dssdev)
DSSDBGF();
if (dsi.dsi_mux_pads)
dsi.dsi_mux_pads(true);
dsi_enable_scp_clk();
/* A dummy read using the SCP interface to any DSIPHY register is
@ -2122,6 +2127,8 @@ err_cio_pwr:
dsi_cio_disable_lane_override();
err_scp_clk_dom:
dsi_disable_scp_clk();
if (dsi.dsi_mux_pads)
dsi.dsi_mux_pads(false);
return r;
}
@ -2129,6 +2136,8 @@ static void dsi_cio_uninit(void)
{
dsi_cio_power(DSI_COMPLEXIO_POWER_OFF);
dsi_disable_scp_clk();
if (dsi.dsi_mux_pads)
dsi.dsi_mux_pads(false);
}
static int _dsi_wait_reset(void)
@ -3993,10 +4002,16 @@ static void dsi_calc_clock_param_ranges(void)
static int dsi_init(struct platform_device *pdev)
{
struct omap_display_platform_data *dss_plat_data;
struct omap_dss_board_info *board_info;
u32 rev;
int r, i;
struct resource *dsi_mem;
dss_plat_data = pdev->dev.platform_data;
board_info = dss_plat_data->board_data;
dsi.dsi_mux_pads = board_info->dsi_mux_pads;
spin_lock_init(&dsi.irq_lock);
spin_lock_init(&dsi.errors_lock);
dsi.errors = 0;

1
include/video/omapdss.h
View file

@ -233,6 +233,7 @@ struct omap_dss_board_info {
int num_devices;
struct omap_dss_device **devices;
struct omap_dss_device *default_device;
void (*dsi_mux_pads)(bool enable);
};
#if defined(CONFIG_OMAP2_DSS_MODULE) || defined(CONFIG_OMAP2_DSS)