Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

OMAPDSS: DSI: fix fifosize

Browse source 
DSI has separate TX and RX fifos. However, the current code only has one
field where the fifo size is stored, and the code for both TX and RX
config write to the same field. This has not caused issues, as we've
been using the same fifo sizes.

Fix this bug by creating separate fields for TX and RX fifo sizes.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2013-09-25 14:40:06 +03:00
parent 303e4697e7
commit 558c73e26e
1 changed files with 13 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

25
drivers/video/omap2/dss/dsi.c
View file

@ -297,7 +297,8 @@ struct dsi_data {
struct {
enum dsi_vc_source source;
struct omap_dss_device *dssdev;
enum fifo_size fifo_size;
enum fifo_size tx_fifo_size;
enum fifo_size rx_fifo_size;
int vc_id;
} vc[4];
@ -2427,14 +2428,14 @@ static void dsi_config_tx_fifo(struct platform_device *dsidev,
int add = 0;
int i;
dsi->vc[0].fifo_size = size1;
dsi->vc[1].fifo_size = size2;
dsi->vc[2].fifo_size = size3;
dsi->vc[3].fifo_size = size4;
dsi->vc[0].tx_fifo_size = size1;
dsi->vc[1].tx_fifo_size = size2;
dsi->vc[2].tx_fifo_size = size3;
dsi->vc[3].tx_fifo_size = size4;
for (i = 0; i < 4; i++) {
u8 v;
int size = dsi->vc[i].fifo_size;
int size = dsi->vc[i].tx_fifo_size;
if (add + size > 4) {
DSSERR("Illegal FIFO configuration\n");
@ -2460,14 +2461,14 @@ static void dsi_config_rx_fifo(struct platform_device *dsidev,
int add = 0;
int i;
dsi->vc[0].fifo_size = size1;
dsi->vc[1].fifo_size = size2;
dsi->vc[2].fifo_size = size3;
dsi->vc[3].fifo_size = size4;
dsi->vc[0].rx_fifo_size = size1;
dsi->vc[1].rx_fifo_size = size2;
dsi->vc[2].rx_fifo_size = size3;
dsi->vc[3].rx_fifo_size = size4;
for (i = 0; i < 4; i++) {
u8 v;
int size = dsi->vc[i].fifo_size;
int size = dsi->vc[i].rx_fifo_size;
if (add + size > 4) {
DSSERR("Illegal FIFO configuration\n");
@ -2920,7 +2921,7 @@ static int dsi_vc_send_long(struct platform_device *dsidev, int channel,
DSSDBG("dsi_vc_send_long, %d bytes\n", len);
/* len + header */
if (dsi->vc[channel].fifo_size * 32 * 4 < len + 4) {
if (dsi->vc[channel].tx_fifo_size * 32 * 4 < len + 4) {
DSSERR("unable to send long packet: packet too long.\n");
return -EINVAL;
}