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authorTomi Valkeinen <tomi.valkeinen@nokia.com>2009-12-16 16:49:03 +0200
committerTomi Valkeinen <tomi.valkeinen@nokia.com>2010-02-15 15:14:42 +0200
commitdd8079d6a9c2aa292dacaf1b42f526558e20379f (patch)
treee9efd520a978f8d683c77e0f246ea517ceda9c29 /drivers/video/omap2
parent61140c9a88ce1f1dee4e98a0c442f9a84b4c5e6b (diff)
OMAP: DSS2: DSI: configure all DSI VCs
Instead of configuring only VC0 to be usable, configure all four VCs similarly. This is needed to utilize the other VCs. Setting the FIFO sizes evenly for all VCs, regardless of how many VCs are actually used, is not optimal. However, this affects only cases when larger amounts of data are written or read via L4, meaning that normal use cases are not affected. At some point this could be optimized better to suit different use cases. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video/omap2')
-rw-r--r--drivers/video/omap2/dss/dsi.c39
1 files changed, 17 insertions, 22 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index e003fe9ee9c..131bd53b6b6 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -224,7 +224,6 @@ static struct
enum dsi_vc_mode mode;
struct omap_dss_device *dssdev;
enum fifo_size fifo_size;
- int dest_per; /* destination peripheral 0-3 */
} vc[4];
struct mutex lock;
@@ -2020,8 +2019,7 @@ static inline void dsi_vc_write_long_header(int channel, u8 data_type,
WARN_ON(!dsi_bus_is_locked());
- /*data_id = data_type | channel << 6; */
- data_id = data_type | dsi.vc[channel].dest_per << 6;
+ data_id = data_type | channel << 6;
val = FLD_VAL(data_id, 7, 0) | FLD_VAL(len, 23, 8) |
FLD_VAL(ecc, 31, 24);
@@ -2127,7 +2125,7 @@ static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc)
return -EINVAL;
}
- data_id = data_type | dsi.vc[channel].dest_per << 6;
+ data_id = data_type | channel << 6;
r = (data_id << 0) | (data << 8) | (ecc << 24);
@@ -2529,15 +2527,15 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
u32 r;
int buswidth = 0;
- dsi_config_tx_fifo(DSI_FIFO_SIZE_128,
- DSI_FIFO_SIZE_0,
- DSI_FIFO_SIZE_0,
- DSI_FIFO_SIZE_0);
+ dsi_config_tx_fifo(DSI_FIFO_SIZE_32,
+ DSI_FIFO_SIZE_32,
+ DSI_FIFO_SIZE_32,
+ DSI_FIFO_SIZE_32);
- dsi_config_rx_fifo(DSI_FIFO_SIZE_128,
- DSI_FIFO_SIZE_0,
- DSI_FIFO_SIZE_0,
- DSI_FIFO_SIZE_0);
+ dsi_config_rx_fifo(DSI_FIFO_SIZE_32,
+ DSI_FIFO_SIZE_32,
+ DSI_FIFO_SIZE_32,
+ DSI_FIFO_SIZE_32);
/* XXX what values for the timeouts? */
dsi_set_stop_state_counter(1000);
@@ -2575,12 +2573,9 @@ static int dsi_proto_config(struct omap_dss_device *dssdev)
dsi_write_reg(DSI_CTRL, r);
dsi_vc_initial_config(0);
-
- /* set all vc targets to peripheral 0 */
- dsi.vc[0].dest_per = 0;
- dsi.vc[1].dest_per = 0;
- dsi.vc[2].dest_per = 0;
- dsi.vc[3].dest_per = 0;
+ dsi_vc_initial_config(1);
+ dsi_vc_initial_config(2);
+ dsi_vc_initial_config(3);
return 0;
}
@@ -2846,9 +2841,6 @@ static void dsi_update_screen_dispc(struct omap_dss_device *dssdev,
if (bytespf % packet_payload)
total_len += (bytespf % packet_payload) + 1;
- if (0)
- dsi_vc_print_status(1);
-
l = FLD_VAL(total_len, 23, 0); /* TE_SIZE */
dsi_write_reg(DSI_VC_TE(channel), l);
@@ -3014,7 +3006,7 @@ static void dsi_handle_framedone(void)
/* RX_FIFO_NOT_EMPTY */
if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) {
DSSERR("Received error during frame transfer:\n");
- dsi_vc_flush_receive_data(0);
+ dsi_vc_flush_receive_data(channel);
}
#ifdef CONFIG_OMAP2_DSS_FAKE_VSYNC
@@ -3268,6 +3260,9 @@ static int dsi_display_init_dsi(struct omap_dss_device *dssdev)
/* enable interface */
dsi_vc_enable(0, 1);
+ dsi_vc_enable(1, 1);
+ dsi_vc_enable(2, 1);
+ dsi_vc_enable(3, 1);
dsi_if_enable(1);
dsi_force_tx_stop_mode_io();